[Event "4NCL Game continuation"]
[Site "?"]
[Date "2016.11.21"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Sanders, Isaac B"]
[Result "1-0"]
[ECO "A87"]
[Annotator "Matthew Sadler"]
[PlyCount "97"]
1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. b3 h6
9. Ba3 g5 10. e3 c6 11. Ne1 Qg6 12. Nd3 Ne4 13. Ne2 Na6 14. Rc1 Nc7 15. f3 Nf6
16. Qd2 a5 17. Bb2 Bd7 18. a4 b6 19. Nf2 Rad8 20. f4 c5 21. dxc5 dxc5 22. Qc2
Na6 23. Nc3 Nb4 24. Qe2 Bc6 25. Rcd1 Bxg2 26. Kxg2 e6 27. Nb5 Qf7 28. Be5 g4
29. Kg1 Qb7 {After a balanced opening, the position - somewhat to my surprise
- turned my way due to the vulnerability of Black's queenside and the b6 pawn
in particular. I was attracted to the additional possibility of targeting the
soft spot in Black's kingside structure (f5) with e3-e4 which seemed very
strong.} 30. Nd6 {Supporting the e4 push} Qf3 {I was aware that this was
possible, but I dismissed it with a vague thought of "exchange the queens I'll
just get the f3 pawn in the end". However once my opponent started thinking, I
began to get uneasy. I noticed the knight hop into c2 and the new entry point
on g4 and I suddenly wondered how I was ever going to round up f3! My opponent
played this move after 6 minutes' thought (leaving himself with just 4 minutes
plus increments to move 40) I took 17 precious minutes on my next move leaving
myself with 9 minutes.} 31. Qxf3 (31. Qd2 {This felt crazy but I was attracted
for a while to the threat of Bxf6 followed by Nfe4 trapping the queen} Rd7 32.
Bxf6 Bxf6 33. Nfe4 fxe4 34. Rxf3 exf3 {was what put me off as White can't hold
the knight on d6, though Komodo finds some equalising counterplay with} 35. h3
gxh3 36. Qh2) 31... gxf3 32. Nb7 {I got a number of dubious remarks about this
move after the game which was a shame as I was really pleased with it. I'd
seen very clearly that after the following exchanges, the remaining White rook
and knight would combine powerfully to keep the Black rook away from the
d-file while eating up pawns on the 6th rank. I'd seen a lot, but as you will
see, the position was even more complicated than I'd realised.} Rxd1 33. Rxd1
Ng4 {Much the better way of doing this.} (33... Ne4 34. Nxe4 fxe4 35. Bxg7 Kxg7
36. Nd6 {picks up the e-pawn as} Rd8 37. Nf5+ {wins}) 34. Nxg4 (34. Bxg7 Kxg7
35. Rd6 Nxe3 {felt a little wrong to me: the White knight on f2 is passive
while the Black knight on e3 is active. It felt more reasonable to exchange
off the knights even though it gives Black a protected passed pawn on f3.
Stockfish gives the following lines:} 36. Rxb6 Rb8 37. Rxe6 Rxb7 38. Rxe3 Nc2
39. Rxf3 Nd4 40. Re3 Rb4 41. Nd3 Rxb3 42. Kf2 Rc3 43. Nxc5 Rc2+ 44. Kf1 Rxc4 {
with an edge for White although I would expect Black to be sufficiently active
to reach a draw.}) 34... fxg4 35. Bxg7 Kxg7 36. Rd6 {I evaluated this position
fairly well from afar. I was particularly happy when I grasped how well-placed
the knight was on the unusual square b7. First of all, it takes away the d8
square from the Black rook, preventing deadly counterplay along the d-file.
Secondly, that means that White can allow his own rook to leave the d-file and
start grabbing loose pawns on e6 and b6. Thirdly, once White does grab the
pawn on b6, the knight on b7 attacks 2 further loose pawns on a5 and c5. As an
added bonus, from c5 the White knight still restricts ...Rd8 which can be met
by the fork Ne6+. Finally, from b7, the knight eyes 2 excellent squares: d8
and d6. I had a lovely feeling that lots of tactics were working for me -
which they were - but I maybe got a little carried away by it all. After all,
tactics can be easily broken...} e5 {An obvious and good idea, liquidating one
loose pawn and (half)-opening the e-file thus creating a further potential
entry channel for the Black rook.} 37. Rxb6 {I was a little nervous about this
as ...Rb8, pinning the knight to the rook, was bound to happen in reply.
However, I knew I had at least Rb5 unpinning and threatening to win either the
a5 or c5 pawns so I felt the danger of the pin was minimal. I also wasn't sure
what Black could do while I was wasting time grabbing pawns as my knight on b7
was still covering d8! Note also that ...Re8 is well met by Nd6 as ...Rxe3
loses to Nf5+! More tactics!} exf4 38. gxf4 Rb8 {The critical position in this
ending. I spent 7 of my remaining 10 minutes on this move. In the post-mortem
after the game, my opponent was pretty upbeat about his chances here which
surprised me greatly. I had the feeling that I was pushing Black around. It
was only when I accidentally looked at the position from the Black side on my
pocket chess set that I understood what he meant! The position looks scary for
White! Obviously White wants to unpin his rook as quickly as possible and I
saw 2 ways of doing this: 1. 39.Rb5: my "banker" and the move I had forseen
several moves earlier 2. The sharper 39.f5, bringing the f-pawn in to the fray
and preparing to unpin with Rg6+. During the game, I was very tempted by 39.
f5. I considered the following lines:} 39. Rb5 (39. f5 Kh7 {The main reason I
rejected this line. I wasn't sure how to continue as 40.Rb5 Re8 looked fine
for Black as due to the inclusion of f5 and ...Kh7, White no longer has his
Nd6-f5 trick. I decided therefore to retain all my tactical possibilities and
leave the king on g7.} (39... Re8 40. Rg6+ Kf8 41. Rf6+ Kg7 42. Re6 {While
considering this line, I got the first mental glimpse of Black's counterplay
in this ending:} Rxe6 43. fxe6 Nd3 44. Nxa5 h5 45. Nc6 h4 46. a5 g3 47. hxg3 h3
{A lovely idea! White is not in time to deal with ...f2+ followed by ...h2.}))
39... Nd3 {This was my main line too, but in the post-morten, we (well my
opponent actually) were much cleverer:} (39... Kg8 {This is what I meant by
tactics can be broken! White's rook and knight are performing wonders in
combining pawn grabbing with restricting the Black rook's potential activity
on the d and e-files, but it's all based on one tactical detail: the position
of the king on g7. 39...Re8 fails to 40.Nd6 Rxe3 41.Nf5+. Quite wonderful that
a single knight on b7 can prevent a rook from activating itself on 2 central
open files! However, take the king on g7 out of the equation and the knight is
suddenly powerless. Of course it feels very weird to put the king on to the
back rank, but it's all about tactics. If Black can get his rook onto White's
back ranks, the position of his own king won't matter in the slightest. In
fact, after this move I think that White is in trouble! My engines take a very
long time to realise this which gives you a now rare feeling of seeing more
than the silicon monster!} 40. e4 {My first reaction at the post-mortem. I'm
fairly sure I would have played this in the game. By advancing his e-pawn,
White ensures he can play his e-pawn to a protected square after ...Re8, while
after e5, he can also block the e-file with Nd6.} (40. Nxa5 Rd8) (40. Nxc5 Rd8
41. Ne4 {is a better way of grabbing a pawn but White is the one under pressure
} Rd1+ 42. Kf2 Nd3+ 43. Kg3 Rg1+ 44. Kh4 f2 45. Nxf2 Nxf2 46. Kh5 (46. Rxa5 g3
47. hxg3 Rh1# {is a gorgeous mate!}) 46... Kg7 47. Rxa5 Rg2 48. Ra7+ Kf6) (40.
Nd6 Rd8 41. Rb6 h5 {will lead to other lines.}) (40. f5 Re8 {The inclusion of .
..Kg8 makes this move possible} 41. Nxc5 Rxe3 {is very scary. This line
illustrates what I said earlier: don't trust your engine! The turning points
in this endgame are clearly too far away even for Komodo 10. His assessment of
the ending starts at +1.18, drops the further you play on to 0.00 (here at
move 41). It's only when you carry on with some natural rook checks that the
evaluation drops right down to -2.73! That's a big swing! In other words, you
can only use the engine assessment when you reach the end of a variation.
Until that moment, if it feels scary, trust yourself!} 42. Rxa5 Re1+ 43. Kf2
Re2+ 44. Kg3 (44. Kg1 Nc2 {intending ...Ne3 or ...Rg2+}) 44... Rg2+ 45. Kh4 f2
46. Ra8+ Kf7 47. Ra7+ Ke8 48. Ra8+ Ke7 49. Ra7+ Kd8 {wins}) 40... Nd3 {An
annoying move, challenging the loosened kingside pawns. Komodo initially very
optimistic and then ...losing!} 41. e5 (41. f5 h5 42. Nd6 Rd8 43. Rb6 h4 {
Suddenly the full horror dawns on Komodo and he jumps to -1.44} 44. f6 g3 45.
hxg3 hxg3 46. Nf5 Ne5 47. Nxg3 Rd2 48. Nf5 Ng4 {wins for Black}) 41... Nxf4 42.
Nd6 Rd8 43. Rxa5 h5 44. Kf2 Nh3+ 45. Ke1 h4 {The Black pawns are too fast}) 40.
Nd6 Rd8 41. Rb7+ {A key difference compared to 39...Kg8. This check with gain
of tempo reestablishes the fantastic coordination of White's rook and knight.
We also see a nice result of Black's 39...Nd3: the d-file is blocked which
means that White can move his knight away from the d-file without allowing
immediate counterplay.} Kf8 {Allows a neat finish} (41... Kf6 42. Nf7 g3 {
An amazing Komodo resource I hadn't seen} 43. hxg3 (43. Nxd8 f2+ {wins}) 43...
Rg8 44. Kf1 Rxg3 45. Rd7 Nc1 46. Kf2 {wins for White}) (41... Kg8 42. Nf7) (
41... Kg6 {Black's toughest defence. I had planned a good move thank goodness:
there are enough ways to go wrong!} 42. Rb6 Kh7 43. Ne4 (43. Nf5 h5 44. Rh6+
Kg8 45. Rxh5 Rb8 {is irritating for White. The e- and d-files have been
covered, but the b-file is one too many!} 46. Nh6+ Kf8 47. Nxg4 Rxb3 48. h4
Rb1+ 49. Kh2 f2 50. Nxf2 Nxf2 51. Rxc5 Rb4 {will lead to a draw}) (43. Nf7 {
was an equivalent option I thought during the game but....} Re8 (43... Rd7 44.
Nxh6) 44. Rxh6+ Kg7 45. Nd6 {So clever I thought but...} Rb8 (45... Rxe3 46.
Nf5+) 46. Nf5+ Kf7 {is better for Black! I can't hold b3!}) 43... Kg7 44. Nf6
Kf7 45. Nd5 (45. Nxg4 Rg8 46. h3 h5) 45... h5 46. f5 {threatening Rb7+ looked
pretty good for White though Black is not finished yet}) 42. Nf7 Re8 43. Nxh6
Rxe3 44. Rb8+ {The key idea!} Re8 (44... Kg7 45. Nf5+) (44... Ke7 45. Nf5+) 45.
Rxe8+ Kxe8 46. Nxg4 Nc1 47. Kf2 Nxb3 48. Nf6+ Ke7 49. Ne4 1-0
[Event "4NCL Analysis 39.f5"]
[Site "?"]
[Date "2016.11.21"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Sanders, Isaac B"]
[Result "1-0"]
[ECO "A87"]
[Annotator "Matthew Sadler"]
[PlyCount "99"]
1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. b3 h6
9. Ba3 g5 10. e3 c6 11. Ne1 Qg6 12. Nd3 Ne4 13. Ne2 Na6 14. Rc1 Nc7 15. f3 Nf6
16. Qd2 a5 17. Bb2 Bd7 18. a4 b6 19. Nf2 Rad8 20. f4 c5 21. dxc5 dxc5 22. Qc2
Na6 23. Nc3 Nb4 24. Qe2 Bc6 25. Rcd1 Bxg2 26. Kxg2 e6 27. Nb5 Qf7 28. Be5 g4
29. Kg1 Qb7 30. Nd6 Qf3 31. Qxf3 gxf3 32. Nb7 Rxd1 33. Rxd1 Ng4 34. Nxg4 fxg4
35. Bxg7 Kxg7 36. Rd6 e5 37. Rxb6 exf4 38. gxf4 Rb8 39. f5 {As we have seen,
39.Rb5 was a fairly serious mistake after 39...Kg8! 39.f5 has the advantage of
bringing an additional unit into play to coordinate with White's rook and
knight.} Kh7 {Now White has 3 interesting possibilities. It would have been
very tough to make a choice on the 40th move!} (39... Re8 {The first
correction to my analysis during the game : the simple} 40. Rg6+ Kf8 41. Nxc5
Rxe3 42. Rxg4 {wins according to Komodo}) 40. Rb5 {Not the engines' first
choice, but the best attempt in my opinion} (40. e4 {A move that Komodo always
wants to play. Usually his evaluation drops sharply after I push Black's
h-pawn a few times! The advantage of this move is that after ...Re8, Nd6
defends the e-pawn and thus prevents Black from breaking through} h5 41. Rb5 {
Logical as Black is kept under wraps after 41...Re8 42.Nd6} (41. e5 h4 {
very scary for White!} 42. Rxb4 {is the move both engines want to play!} (42.
e6 g3 (42... Nd3 {is even stronger} 43. e7 f2+ 44. Kf1 g3 45. hxg3 h3 {wins!})
43. hxg3 hxg3 44. e7 Nc2 45. Re6 f2+ (45... Nd4 46. Nd8 Ne2+ (46... Rxb3 47.
e8=Q Rb1+ 48. Re1 f2+ 49. Kg2) 47. Rxe2 fxe2 48. e8=Q) 46. Kg2 (46. Kf1 Rg8)
46... Ne1+ 47. Kf1 Nf3) 42... axb4 43. Nd6 {is Komodo's suggestion. He likes
Black though} Kg7 44. Kf2 Rg8 45. f6+ Kg6 {Stockfish also thinks that Black is
clearly better though a human could easily get confused!}) (41. f6 Nd3 {
good timing, preventing White from supporting his f-pawn with e4-e5} (41... h4
42. f7 Rf8 (42... Kg7 43. e5 g3 44. hxg3 hxg3 45. Rf6) 43. Nd6 Kg6 (43... g3
44. Nf5) 44. e5 g3 45. hxg3 hxg3 46. Ne4+ Kxf7 47. Nxg3 Nd3 {is almost equal})
42. Rd6 Rxb7 43. Rxd3 Kg6 44. e5 Kf5 45. Re3 Rb8 {Both Stockfish and Komodo
prefer Black here!} 46. Kf1 Rd8 47. Re1 h4 48. e6 Kxf6 49. e7 Re8 50. Re4 Kf5
51. Re3 h3 52. Kf2 Kf6 53. Re4 Rxe7 54. Rxg4 Re2+ 55. Kxf3 Rxh2 {should lead
to a draw}) 41... h4 42. Nd6 (42. Nxc5 Rd8 {feels unpleasant!} (42... g3 43.
hxg3 hxg3 44. Rxb8 f2+ 45. Kg2 Nc2 46. Rb7+ Kh6 47. Rb6+ Kh7 (47... Kh5 48. Nd3
Ne1+ 49. Kxg3 f1=Q 50. Nf4+ Kg5 51. Rg6#) 48. Rb7+ {is a draw!})) 42... Rd8 (
42... g3 43. hxg3 hxg3 44. Rxb8 Nc2 45. Rb7+ Kg8 (45... Kh6 46. Nf7+ Kh5 47.
Rb6 f2+ 48. Kg2 Ne3+ 49. Kxg3 f1=Q 50. Rh6#) 46. f6 (46. Rb8+ Kh7) 46... f2+
47. Kg2 Ne3+ 48. Kxg3 f1=Q 49. Rg7+ Kf8 50. Rf7+ Kg8 {is a draw}) 43. e5 Rd7 {
This is a winning attempt for Black, stopping Rb7+} (43... Nd3 44. Rb7+ Kg8 45.
Ne4 Nxe5 46. Nf6+ Kf8 47. Nh7+ {is a draw}) 44. Rb6 (44. Rxb4 axb4 45. Kf2 {
is a better version of the previous ending. Komodo claims an edge for Black
but it's very murky!}) (44. Rb7 Rxb7 45. Nxb7 g3 46. hxg3 hxg3 47. Nxc5 f2+ 48.
Kg2 Nc2 {wins}) 44... g3 45. hxg3 hxg3 46. e6 Rg7 47. f6 Nc2 48. fxg7 Nd4 {
wins according to Komodo. Black will follow up with ...Ne2+ and ...g2+}) (40.
f6 {Again trying to use the f-pawn to free the White rook from the pin on the
knight on b7} Nd3 (40... h5 {Very natural, but allows a very neat rejoinder}
41. Re6 {A very strong idea, breaking the pin on the knight on b7 while
blocking the e-file with the rook} Nd3 (41... Rxb7 42. Re7+) (41... Kg6 42. Nd6
{The key structure which forces Black into passivity} Rf8 43. f7+ Kg7 44. Re5 {
and Black's pawns start to fall}) 42. f7 {Threatening Re8} Rf8 43. Nd8 {
My line!} (43. Nd6 {is also strong} h4 44. Rf6 {Threatening Nf5 and Rh6#} Kg7
45. Rf5 {Winning according to Komodo} (45. Ne8+ Kh7 46. Nd6 Kg7)) 43... h4 (
43... Rxd8 44. Re8) 44. Re8 Kg7 45. Ne6+ Kxf7 46. Rxf8+ Kxe6 47. Rh8 h3 48. Rh5
{wins}) (40... Re8 41. f7 Rf8 {Forcing the pawn to f7 before White can set up
the ideal structure with Re6 & Nd6} 42. Nd6 Nd3 (42... h5 43. Ne4 {is very
strong: the knight is superb on g5}) 43. Nf5 Rxf7 44. Nxh6 Rg7 45. Nf5 {
was my line and only a little better for White}) (40... Kg6 {Stops White from
establishing his ideal structure with Re6} 41. f7+ {The pawn on f7 is hard to
capture and takes e8 away from the Black rook} Kg7 42. Rb5 Nd3 43. Nxa5 Rd8 (
43... Rf8 44. Nb7) 44. Nb7 Rd7 45. Nxc5 (45. a5 Nb4 46. Nxc5 Rd1+ 47. Kf2 Rd2+
48. Kg3 Rg2+ 49. Kh4 f2 50. Rb7 Rxh2+ 51. Kg3 f1=Q 52. Ne6+ Kg6 53. Nf4+ {
is an unexpected Komodo draw}) 45... Nxc5 46. Rxc5 Rd1+ 47. Kf2 Rd2+ 48. Kg3
Rg2+ 49. Kh4 {This looks to be a pretty good version: Black really misses ...
h5 protecting the pawn on g4}) 41. Re6 (41. Rd6 Rxb7 42. Rxd3 Kg6 {is fine for
Black}) (41. f7 Kg7 42. Rb5 {Felt like the best way to play this idea: f7
takes away e8 from the Black rook} (42. Nxc5 Rxb6 43. Nd7 Kxf7 44. Nxb6 h5 {
It's a lovely tactic, but I was very worried about the result. Komodo thinks
it's lost for White!}) 42... h5 43. Nxa5 (43. Nd6 Rd8) 43... Rd8 44. Nb7 (44.
Nc6 Rd6 45. Ne7 Kxf7 46. Nd5 {is a Komodo alternative but...} h4 {I don't
think that Black is going to have any problems here}) 44... Rd7 45. Nxc5 Nxc5
46. Rxc5 Rd1+ 47. Kf2 Rd2+ 48. Kf1 (48. Ke1 Rxh2 49. Rf5 Kf8 50. a5 g3 51. Rxf3
Rh1+ {wins}) (48. Kg3 Rg2+ 49. Kh4 Rxh2+ 50. Kg5 Kxf7 {wins} (50... g3 {
was what I had thought but...} 51. Kf4 {is the amazing Komodo draw!} (51. Rf5
Kf8 52. Rxf3 g2 53. Rg3 h4 54. Rg4 Kxf7 {was my win}) 51... h4 (51... g2 52.
Rg5+ Kxf7 53. Kxf3) (51... f2 52. f8=Q+ Kxf8 53. Rf5+ Ke7 54. Kxg3 {Curses!})
52. Kxf3 Kxf7 53. Rg5 {holds for White})) 48... Rxh2 49. Rf5 Kf8 50. Rf4 {
Komodo thinks this is just about ok for White. All feels very fraught!} (50. a5
h4 {is very dangerous})) (41. Rb5 Re8 42. f7 Rxe3) 41... Kg6 42. Nxa5 (42. Nd6
Rxb3 {The difference with 40...h5: the b-file is open so this wins for Black})
42... h5 43. Rd6 {is Komodo's line: White seems to be keeping the knight under
control for now, but it still feels messy. Stockfish is very keen on Black!}
Ne5 44. Rd5 Kxf6 45. Rxc5 (45. Rxe5 Kxe5 46. Nc6+ Ke4 47. Nxb8 Kxe3 48. Kf1 h4
{wins for Black.}) 45... Rg8 46. Nc6 g3 47. hxg3 Rxg3+ 48. Kf1 Ng4 {is another
Black win according to Stockfish!}) 40... Re8 {and Black's rook has escaped
the clutches of White's rook and knight. However his king is now badly-placed}
41. Nd6 Rxe3 42. Rb7+ Kg8 (42... Kh8 43. Nf7+ Kh7 44. Ne5+ Kg8 (44... Kh8 45.
Ng6+ Kg8 46. f6 f2+ 47. Kf1 Re1+ 48. Kxf2 Nd3+ 49. Kg3 Re3+ 50. Kh4 Rh3+ 51.
Kxg4 Nf2+ 52. Kf4) 45. Nxg4 {is a definite White advantage}) 43. f6 Re1+ 44.
Kf2 Nd3+ 45. Kg3 Rg1+ 46. Kh4 Ne5 {I thought even this might be winning for
White, but that's not correct.} (46... f2 47. f7+ Kg7 48. Ne8+ Kf8 49. Nf6 f1=Q
50. Nh7+ Kg7 51. f8=Q+ Kg6 52. Rg7# {is the gorgeous mate that Komodo finds})
47. Rb8+ (47. f7+ Kg7 48. Nf5+ Kf8 49. Nxh6 Kg7 50. Nf5+ Kf8 51. Nd6 Kg7 52.
Rb8 Ng6+ 53. Kg5 Nf8 54. Nf5+ Kxf7 55. Nh6+ Ke7 56. Nf5+ {is a draw too}) 47...
Kh7 48. Kh5 f2 49. Rb7+ Kg8 50. Rb8+ {is a draw} 1-0
[Event "4NCL Division 1b"]
[Site "Birmingham, ENG ENG"]
[Date "2016.11.21"]
[Round "?"]
[White "Lewis, Andrew P"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "A21"]
[Annotator "Matthew Sadler"]
[PlyCount "86"]
[EventDate "2016.02.14"]
1. c4 e5 2. Nc3 Bb4 3. Nd5 Bc5 4. e3 Nf6 5. d4 Nxd5 6. dxc5 Nf6 7. Nf3 Nc6 8.
b4 Nxb4 9. Nxe5 Qe7 10. Bb2 Qxc5 11. Be2 O-O 12. O-O d6 13. Nf3 Ne4 14. Rb1 Na6
15. Qc2 Re8 16. Rfd1 c6 17. Rd4 Qf5 18. Ba1 Nac5 19. Qb2 f6 {After a nervous
period between moves 12-18, I felt that I was starting to establish a grip.
However, an unstable feature of my position stopped me relaxing too much: my
knight on e4. This knight fulfils a crucial role. First of all, it protects my
(extra) pawn on d6. Secondly, it exerts a restraining influence on White's
centre. The queen on f5 and knight on e4 combine against the f2 pawn and keep
the White knight pinned to its current post on f3. This in turn prevents White
from increasing his central presence with f3 and e4 (which would nail down the
backward pawn on d6 still further). The knight on e4 is unstable as it is
unsupported by a Black pawn and can be easily chased away by the White f-pawn
if White can organise it. The next few moves revolve around White's efforts to
activate his f- and e-pawns and Black's attempts to keep White caged in.} 20.
Rf1 {Protecting f2 and preparing to move the knight away from f3.} Qg6 {
Played quickly. I felt this was a powerful response to White's last move.} 21.
Nh4 (21. Nd2 Bh3 22. Bf3 Ng5 {wins}) 21... Qh6 {From afar, I'd expected 22.Nf3
when 22...Bg4 again prevents Nd2 and prepares to complete Black's development
with ...Rad8. While White was thinking, I suddenly realised that 22.g3
actually prepared a concrete idea: Ng2 (defending e3) followed by f3 and e4. I
couldn't immediately find a good response which confused me and made me a
little uncertain.} 22. g3 Be6 (22... Bh3 23. Ng2 Re7 24. f3 Bxg2 (24... Ng5 25.
Rh4 Qg6 26. Nf4 Qf5 27. g4 {felt rather embarrassing. I decided that if I
played ...Bh3, I would most likely need to follow up with ...Bxg2.}) 25. Kxg2
Ng5 {was the first line I considered. It was a difficult one to assess. From
my point of view, I'm upping the stakes by giving White 2 bishops against 2
knights. White's long-term compensation for the pawn has gone one notch higher.
Moreover, White can achieve e4 in this line so the question is whether Black
has a way to react immediately. I didn't fancy Black's prospects facing
White's 2 bishops with his 2 knights and a wall of pawns on e4 and f3. For
example, I was seriously worried about a line like 26.e4 Rae8 27.h4 Nf7 28.Rf2.
The engines still consider Black to have a definite advantage but I disagree.
Any attempts for Black to break out could easily go badly wrong. The key point
as far as I was concerned was whether 26...f5 was a strong response to 26.e4}
26. e4 f5 27. exf5 Rae8 28. Bd1 Qh3+ 29. Kg1 Re1 30. Qf2 {was the main line of
my calculations. When I saw that 29...Re1 wasn't winning on the spot, I had an
emotional counter-reaction and decided that the whole line wasn't good enough.
Essentially, I felt that with 26...f5, I was taking a fairly extreme measure
to justify giving White 2 bishops versus 2 knights with ...Bh3xg2. That
measure felt illogical when you consider that I had played ...f7-f6 a few
moves earlier (move 19 in fact) to explictly counter White's threats on a1-h8
diagonal. I preferred to go for something that felt much more logical: while
White was spending vast amount of time preparing f2-f3, I would free myself of
my backward d-pawn and solidfy my central control by supporting my knight on
e4 with a pawn. A pawn on d5 would also prevent White from expanding with
e3-e4. 100% logical, but as I realised with mounting concern, the tactics were
not wholly in my favour.}) 23. Qc2 d5 {The plan I had envisaged. My knights on
c5 and e4 are loose however so the situation remains fraught for a few more
moves. And around here, another problem popped up in my head.} 24. Ng2 Rac8 {
So that my knight is protected after f3 ...Nd6 or ...Ng5, cxd5. However,
rather surprisingly my rook is going to be vulnerable on this square.} 25. f3 {
A moment of great relief. After this move, Black's plan makes perfect sense.
By now I'd realised that I had a tactical problem after 25.Nf4.} (25. cxd5 cxd5
26. Nf4 {is not possible:} Nxf2 27. Rxf2 Ne4 {wins!} 28. Qb3 Nxf2 29. Kxf2
Qxh2+) (25. Nf4 {White's best idea. It took me some moments to believe that
White's position was hanging together tactically. That disbelief was
influenced by a few subjective factors: White has played Qc2-b2-c2, Rf1-d1-f1
and Nf3-e5-f3-h4-g2-f4. How could the tactics possibly work for him after
wasting so much time? Another hard lesson in the unfairness of life!} Bf7 {
White now has 2 possibilities. The second one worried me the most.} (25... Bf5
26. cxd5 {is fine for White:} g5 (26... Nxg3 27. Qxc5 {is just good for White})
27. Nd3 cxd5 28. Qb2 {gives White excellent compensation for the pawn. When I
played 19...f6 to block White's pressure along the a1-h8 diagonal, I never
intended to follow up with ...g5!}) 26. Bg4 (26. cxd5 g5 {I realised I needed
this move, and that gave me the feeling I'd lost control somewhat. The
position is extremely complicated.} (26... cxd5 27. Nxd5 {was my first shock:
there is no good discovery for the knight on c5.}) 27. Bg4 {This was the
resource that especially worried me during the game (either here or on move 26)
. White attempts to disrupt the balanced defensive structure that Black has
set up with his last 4 moves.} (27. f3 {is not too successful} gxf4 28. fxe4
fxg3 29. hxg3 Qxe3+ 30. Kg2 Nxe4 31. Rd3 Qc5 {is good for Black}) (27. Ne6 cxd5
28. Nxc5 b6 {Komodo} 29. Qd1 Rxc5 {After such a weakness as ...g5, White will
always have full compensation for his pawn. Objectively the position is
balanced, but comparing this position to the position after move 10, White has
made a better job of generating play for his pawn than I have of consolidating
my advantage!} (29... bxc5 30. Rxd5 Bxd5 31. Qxd5+ Kf8 32. f3 {is very
unpleasant for Black})) (27. d6 gxf4 28. d7 Nxd7 (28... fxe3 29. dxe8=Q+ Rxe8
30. f3 {wins}) 29. Rxe4 (29. Rxd7 fxe3) 29... Rxe4 30. Qxe4 {This move worried
me as 30...fxe3 loses to 31.Qg4+! However, Black has a simple remedy:} Re8 31.
Qxf4 (31. Qd4 fxg3 32. hxg3 Bd5) 31... Qxf4 32. gxf4 Bxa2 {is an edge for Black
}) 27... gxf4 28. Bxc8 Rxc8 29. dxc6 Rxc6 30. Rxe4 Nxe4 31. Qxe4 fxe3 32. fxe3
Re6 33. Qg4+ Qg5 {is Komodo's best line for equality}) 26... g5 (26... Rc7 27.
cxd5 {is very inconvenient as the rook on c7 is directly in the firing line
after} g5 28. Ne6 ({or} 28. d6 {Black has no choice but to dive into
complications.})) 27. Bxc8 gxf4 {During the game, I couldn't decide how to
assess this position. It seems to be fine but not better.} 28. Bf5 (28. cxd5 {
transposes back to 26.cxd5 g5 27.Bg4}) (28. Qe2 {is a remarkable idea of
Komodo's. Needless to say, I had no inkling whatsoever that this was possible!}
Qg6 29. f3 Ng5 30. Rxf4 Rxc8 31. Rxf6 Qd3 32. Qxd3 Nxd3 33. h4 Ne6 34. cxd5
cxd5 {is Komodo's line (equal)}) 28... fxe3 (28... f3 29. cxd5 cxd5 30. Rfd1 {
Komodo, followed by Rxd5}) 29. fxe3 Qxe3+ 30. Kg2 dxc4 {I've spent a lot of
time analysing this line. I was worried about Black's king, but he seems to
have plenty of resources} 31. Qd1 {was the main line I looked at, with the
dual threat of activating the queen on g4 and invading on d8 with the rook. It
also anticipates Black's main (and very dangerous) attacking idea.} Bd5 {
This is it! But White is ready!} 32. Rxd5 cxd5 33. Qxd5+ Kg7 (33... Kf8 34. Bd4
Qd2+ 35. Rf2 Nxf2 36. Bxc5+ {wins}) 34. Bd4 Qd2+ 35. Rf2 Re5 {Blocking the
a1-h8 diagonal with tempo!} (35... Nxf2 36. Bxf6+) 36. Qd8 Nxf2 37. Qc7+ Kg8 (
37... Kf8 38. Bxc5+ Rxc5 39. Qxc5+ Ke8 40. Qxf2) 38. Qxh7+ Kf8 39. Qh8+ Kf7 40.
Qh7+ Kf8 {is a draw. A line I analysed in the train and the engines didn't
find any better - pretty pleased about that!}) 25... Nd6 {One move and
everything has changed: Black's position makes perfect sense again. His pawn
on d5 holds back White's advance e3-e4 and his knight on d6 is ready to jump
to c4 or f5 and put pressure on e3. On top of that, the tactics are going
Black's way again.} 26. cxd5 cxd5 27. Rh4 (27. Nf4 Bf7 28. Nxd5 {no longer
works due to} Ne6 {The knight on d6 protects the rook on c8 which means White
no longer has the tactic Ne7+. I managed to finish off the game safely, helped
by White's severe time trouble.}) 27... Qg6 28. Qd1 Qf7 29. Rb4 Nc4 30. Bd4 Bh3
31. Qc1 Ne6 32. Bxa7 b6 33. Rxc4 dxc4 34. Bxb6 Rc6 35. Ba5 Qa7 36. Bc3 Qxa2 37.
Rf2 Qa6 {The last difficult moment: this move eliminates any last measure of
looseness in Black's position and prepares the transfer of the knight to d3
via c5.} 38. Nh4 Nc5 39. Qd2 Nd3 40. g4 Rb6 41. Qc2 Reb8 42. Bd1 Rb1 43. Nf5
Rc1 0-1
[Event "Bangla Chess Rapid"]
[Site "?"]
[Date "2016.12.05"]
[Round "?"]
[White "Bukojemski, Adam"]
[Black "Sadler, Matthew D"]
[Result "1-0"]
[ECO "C11"]
[Annotator "Matthew Sadler"]
[SetUp "1"]
[FEN "2rq2k1/5pp1/p3pP1p/1p2P1b1/1P1pPB2/1R6/1PrQ2P1/5RK1 w - - 0 27"]
[PlyCount "27"]
[EventDate "2016.12.05"]
[SourceVersionDate "2016.07.03"]
{[#]} 27. Qd3 {The opening phase had gone well for me and multiple threats
during the middlegame had led to the win of the h pawn. White had managed to
drum up some counterplay in return but I was convinced that Black should be
able to repel White's attack with some accurate moves. Finding the correct
sequence in a rapid game is not easy however. I invested my significant time
advantage of a couple of minutes into this position but didn't get any further
than the mess I'd seen within the first 20 seconds of my thinking time. It's
an interesting moment and I'll spend some time discussing this later.} gxf6 (
27... Bxf4 28. Rxf4 Qc7 {was my first thought but I was worried by} 29. Qg3 {
After} (29. Qxd4 Rd8) 29... g5 {I was looking at lines like 30.Rg4 Kh7 when
both 31.Rxg5 and 31.Rh4 looked scary. All of a sudden I wasn't sure how
quickly my own play was arriving! The move 30.Rh4 also led to slight panic. It
turns out that neither of these lines is dangerous for Black:} 30. Rg4 (30. Rh4
Rc1+ (30... Re2 {is the other way} 31. Rxh6 (31. Rc3 dxc3 32. Rxh6 Qa7+ 33. Kh2
Qe3) 31... Qc1+ {The same idea as the main line: cover the g5 pawn with the
queen from an attacking position} 32. Kh2 Rcc2) 31. Kh2 Rf1 32. Rxh6 (32. Rc3
Qxc3 (32... dxc3 33. Rxh6 {leads to a draw by repetition} Rxf6 34. Rxf6 c2 35.
Qxg5+ Kf8 36. Rh6 Ke8 37. Rh8+ Kd7 38. Qd2+ Ke7 39. Qg5+) 33. bxc3 Rxc3 34. Qg4
Rf4 {wins!}) 32... Qc1 {The key idea! Get the queen to c1 to cover Black's
kingside remaining pawn cover}) 30... Kf8 {This concept of running the king
away from the kingside only occurred to me later in the game once it was
forced onto me. The threat of ...Rc1+ and ...Qxe5 keeps White's queen tied
down to the defence of the e5 pawn whch makes it virtually impossible for him
to create rapid play against the Black king.} 31. Rd3 Rd8 32. Kh2 Ke8 {Black's
king is safe and White's pieces are bound hand and foot. Was it possible to
find all these variations during the game in a few minutes of feverish
thought? No, but that wasn't what was necessary. The key general concept to
come up with was to run the king away from the kingside. Once you understand
that 27...Bxf4 28.Rxf4 Qc7 29.Qg3 g5 30.Rg4 Kf8 is the start of a good
long-term plan for Black, that gives you confidence to look deeper into lines
such as 30.Rh4 and dare to consider counterplay (30...Rc1+ & ...Rf1 or 30...
Re2) rather than just passive defence. My problem was that I dived
straightaway into calculating variations after 27...gxf6 and never had the
calm to step back and reason what I wanted to do in the position. I felt
almost immediately that I was focusing on a course of action - opening the
kingside - that would inevitably give White decent chances but once I started
looking at variations, I couldn't switch course and just kept on going. My
world narrowed itself to the thought of destroying the threat immediately
under my nose - the f6 pawn - and nothing else could force its way into my
head. For that reason I was blind to any possibilities of running my king away
from danger or hitting back at White with counterplay using my control of the
c-file. Understanding the right time to dive into details is a key practical
skill which I got wrong in this game. I couldn't maintain my overview of the
position at this moment and I'm convinced that my vulnerability in the rest of
the game - which eventually led to a blunder - came from this moment.}) 28.
exf6 {Not a bad move at all, but a slight relief as the focus of my feverish
calculations had been the dangerous 28.Qh3, keeping all White's options in
reserve. White's first threat is 29.exf6 Qxf6 30.Bxg5 as 30...Qxg5 31.Rg3 wins
the queen. Black has 3 logical choices: 1. To keep on destroying White's
kingside pawn roller with 28...fxe5 2. To run with the king with 28...Kf8 3.
To look for counterplay.} (28. Qh3 d3 {My favourite way of playing this
position. Unfortunately, Black is the one fighting to hold the balance.} (28...
fxe5 29. Bxg5 hxg5 30. Qh5 {The nightmare scenario for Black: plenty of
material but facing an overwhelming attacking force with an open king.} R2c7 {
The only way to defend f7, but this releases the last remaining pressure that
Black was exerting on White's position (attack on g2). White is completely
free now to attack Black's king.} (30... R8c7 31. Rh3 Kf8 32. Qh8+ Ke7 33.
Rxf7+ {wins}) (30... Qf8 31. Rh3 Qg7 32. Rxf7 {wins}) 31. Rbf3 Qf8 (31... f6
32. Rxf6) 32. Qxg5+ Qg7 33. Qh4) (28... Kf8 {We saw how effective fleeing with
the king was in the variation 27...Bxf4 28.Rxf4 Qc7 29.Qg3 g5 30.Rg4 Kf8. Here
the attempt is less effective as 27...gxf6 has opened lines which the White
rooks can use.} 29. Bxg5 hxg5 30. Rbf3 {is very powerful} Rc1 31. Qh8+ Ke7 32.
Qxf6+ Kd7 {and now the very fine move} 33. Qg7 Rxf1+ 34. Rxf1 Kc6 35. Rxf7 {
is very difficult for Black as} Rc7 36. Rxc7+ Qxc7 37. Qxc7+ Kxc7 38. Kf2 {
is a winning ending for White}) (28... Rc1 {A Stockfish idea! It's a stunner -
I wish I'd thought of it. Black reasons that White has virtually destroyed his
own position in his efforts to drum up some counterplay. The advance of
White's h- and f-pawns (and the sacrifice of a couple of pawns) has left many
weak dark-squares (such as e3) in the heart of White's position. A bishop on a
powerful central dark-square might easily provide more than sufficient
compensation for the exchange. The reason it doesn't manage to give Black the
advantage lies in the weakness of Black's king. White has enoght open lines
(f- and g-file) against the Black king to keep Black's queen and bishop a
little tied down. It is a wonderful idea though!} 29. Rxc1 Rxc1+ 30. Bxc1 Bxc1
31. Qg3+ Bg5 32. exf6 Qxf6 33. Qb8+ Kg7 34. Rf3 Qg6 35. Qc7 {which Komodo
considers about equal. White's pressure against f7 stops Black's queen from
doing too much damage!}) 29. Rxd3 Qb6+ 30. Kh2 (30. Kh1 Rf2) 30... Rf2 {
The key resource which I hoped might give Black the advantage. However as I
realised during my home analysis, the tactics are on White's side for the
moment} 31. Bxg5 {A key intermezzo} hxg5 (31... Rxf1 32. Be3 Qb8 33. Bxh6 Qxe5+
34. Rg3+ {wins}) (31... fxg5 32. Qxh6 {Amazingly enough, no draw for Black}
Rxf1 33. Qxg5+ Kf8 34. Qh6+ Ke7 35. Qh4+ Ke8 36. Qh8+ Ke7 37. Qxc8 Qg1+ 38. Kh3
Rf3+ {So far my line. I chose 39.gxf3 which is +11.57. There is even better}
39. Rxf3 Qh1+ 40. Kg3 Qe1+ 41. Kh2 Qh4+ 42. Rh3 Qf4+ 43. Kg1) 32. Rd6 Qa7 (
32... Qxd6 33. exd6 Rxf1 34. d7 Rd8 35. Qd3 Rf4 36. Qd6 Rxe4 37. Qe7 Rxd7 38.
Qxd7 Rxb4 {I'm assuming Black should draw this fairly easily, but it's not a
winning attempt}) 33. Rfd1 {Very dangerous for Black, but holdable!} (33. Rxa6
{A clever idea, but it allows Black to coordinate his forces again} Qd4 34.
Rxf2 Qxf2 35. exf6 Qxf6 {Equal pawns but this felt more difficult for White.
Komodo gives -1.44, and -2.78 after the even more accurate 35...Qf4+!}) (33.
Rc1 {I got very excited about this idea. Komodo says he found many ways to
neutralise it, but the positions remain complicated} Qa8 34. Rc5 Kg7 (34... Rf4
{Komodo} 35. Qd3 Kh7 36. g3 Rf2+ 37. Kg1 Rxb2 38. Qf3 Rxc5 39. bxc5 Rb1+ 40.
Kf2 Qg8 {is apparently equal but looks fraught for Black to me!}) 35. exf6+ Kg6
{was the idea that got me excited, looking for ...Rh8 but} 36. Rxg5+ Kxg5 37.
Qg3+ Kh5 38. Qh3+ {is just a draw} (38. Qxf2 Qxe4)) 33... Rf8 {The most
accurate} (33... Kg7 {is very tempting looking to exploit the White king and
queen on the h-file but...} 34. Rd7 Qb8 (34... Rc7 35. Rd8) 35. Rxf7+ Kxf7 36.
Rd7+ {wins}) (33... Re8 {My first thought to cover against the threat of Rd8+
and Rxe6, but it's not the best} 34. Rd8 {Komodo} Qe7 35. Rxe8+ Qxe8 36. Qe3
Rxb2 (36... Rf4 37. g3 Rg4 38. exf6 {and the rook on g4 is trapped!} Qc6 39.
Re1 e5 40. Qe2 Qe6 41. Rf1 {followed by Rf5}) 37. exf6 Qb8+ 38. e5) (33... Qe7
34. Rd7 Qf8 35. Kg1 Rf4 36. g3 Rxe4 37. exf6 {wins}) (33... Qc7 34. Qh6 (34.
Rd7 Qb8 {is not so clear} (34... Qxe5+ 35. Kg1 {wins})) 34... Rf4 35. Kg3 {
Finally! I was looking for this idea continually! White plans Rh1!} Qe7 36. Rh1
Rh4 37. Rxh4 gxh4+ 38. Qxh4 {is good for White}) (33... Rf4 34. Rd8+ Kg7 {
I'd assumed this was winning. It's not that clear!} (34... Rxd8 35. Rxd8+ Kg7
36. Qh8+ Kg6 37. Rg8#) 35. exf6+ (35. Qh8+ Kg6 36. Qg8+ Kh6 37. Qh8+ Kg6 {
is a draw}) 35... Kg6 (35... Kxf6 36. Qh6+) 36. Rxc8 Rh4 37. Rg8+ Kh7 (37...
Kxf6 38. e5+ Ke7 39. Qxh4 gxh4 40. Rdd8) 38. Rg7+ Kh6 39. Qxh4+ gxh4 40. Rf1 {
is better for White according to Komodo, though Komodo finds a way to keep
things afloat}) 34. Rd7 (34. Rd8 Qe7 35. Rxf8+ Qxf8 {The queen is much better
placed on f8 than on e8}) 34... Qb8 35. Kg1 (35. R1d6 Rf4) 35... Rxb2 36. Qh6
Qxe5 37. Rd8 Rxg2+ 38. Kxg2 Qxe4+ {is a draw by repetition}) 28... Qxf6 29.
Bxg5 (29. Bc7 Be3+) 29... Qxg5 30. Qh3 {Black's plan of running with the king
is virtually forced, but it's also what he wants to do!} Kf8 31. Rg3 (31. Rbf3
{was an idea I had at home, but it only works if Black defends passively.} Ke7
(31... R8c7 32. Rg3 Qe5 33. Qxh6+ Ke7 34. Rxf7+ Kd6 35. Qf8+ {The difference
and the point of my idea: the 8th rank is no longer covered!}) 32. Rxf7+ Kd6 {
looked good for Black to me due to the threat of ...Qe3+ and Komodo concurs.
Once again an example of how important the idea of running with the king was
in this phase of the game!} 33. Re1 Rc1) 31... Qe5 32. Qxh6+ {A serious
mistake. It allows Black's king to get safe while White's rooks are poorly
coordinated} (32. Rg6 {Ingenious but not strong} Ke7 33. Rgf6 Rg8 34. Rxf7+ Kd6
) (32. Rgf3 R2c7 {is safest but as explained before, it does release Black's
pressure against White's king (the g2 square)} (32... R8c7 33. Qxh6+ Qg7 34.
Qh2 {looked awkward to me. Komodo assesses the position as equal} Rc1 35. Qd6+
Ke8 36. Rxc1 Rxc1+ 37. Kh2 Rc2 38. Rg3 Qh6+ 39. Rh3 Qg7 40. Rg3 {is the Komodo
draw by repetition}) 33. Qxh6+ Ke7 (33... Qg7 34. Qxe6) 34. Rxf7+ Kd6 {is
about equal. Komodo and Stockfish confirm} 35. Rxc7 Kxc7 36. Rc1+ Kb8 37. Rxc8+
Kxc8 38. Qf8+) 32... Ke8 {A mistake in turn. I tried to be too clever} (32...
Ke7 33. Rxf7+ Kd6 {is simply very strong for Black due to the dual threat of ..
.Qxg3 and ...Rc1+. I obviously still hadn't realised that the achievement of ..
.Ke7-d6 was worth going for immediately!} (33... Kxf7 34. Qh7+ {was what I was
afraid of})) 33. Rg8+ (33. Rxf7 Rc1+ {was my idea}) 33... Kd7 34. Rxf7+ Kd6 35.
Rxc8 Rxc8 {The position is equal according to the engine, but the next few
moves were played with little time on our clocks (about 40 seconds each)} 36.
Ra7 {The wrong path. 36.Rf8 or 36.Qh4 was better.} Qxe4 {Now Black is winning}
37. Qh2+ Kd5 38. Qh5+ {This surprised me (I hadn't realised the check was
legal) and before I'd realised it, I reached out and played...} e5 $4 (38...
Kc4 {wins. Not difficult, but I think that my blindness earlier in the game
regarding running with my king prevented me from reaching out to my king and
pushing it forward. The text is a gruesome blunder.}) 39. Qf7+ Kd6 40. Qd7# 1-0
[Event "?"]
[Site "?"]
[Date "2016.10.29"]
[Round "?"]
[White "Rook & Bishop vs Rook"]
[Black "?"]
[Result "1-0"]
[Annotator "Matthew Sadler"]
[SetUp "1"]
[FEN "3k4/4r3/3K4/3B4/8/8/8/5R2 w - - 0 1"]
[PlyCount "17"]
[SourceVersionDate "2016.03.14"]
{So it's time to put it all together! Hopefully now, it will all make perfect
sense! I'll just give the variations with a few little memory pointers along
the way.} 1. Rf8+ Re8 2. Rf7 {The rook goes to the 7th to allow White to
disruopt Black's ideal defensive structure.} Re2 {The best square for the rook:
Black can check the White king on the d-file from a dark square (d2) that
cannot be controlled by White's light-squared bishop.} 3. Rh7 {Zugzwang!} Re1 (
3... Re3 4. Rd7+ Ke8 (4... Kc8 5. Ra7) 5. Ra7 Kf8 6. Rf7+ Ke8 7. Rf4 Kd8 8. Be4
{Coordination!}) 4. Rb7 Rc1 (4... Kc8 5. Ra7 Rb1 6. Rh7 Kb8 7. Rh8+ Ka7 8. Ra8+
Kb6 9. Rb8+) 5. Bb3 Kc8 (5... Rc3 6. Be6 Rd3+ 7. Bd5 Rc3 8. Rd7+ Kc8 (8... Ke8
9. Rg7) 9. Rh7 Kb8 10. Rb7+ Kc8 11. Rb4 Kd8 12. Bc4 {Coordination!}) 6. Rb4 Kd8
7. Rh4 {Very typical use of the mobility of White's rook operating
effortlessly on both flanks} Re1 (7... Kc8 8. Bd5 Kb8 9. Ra4 {The king can try
to run... but try is all it is}) 8. Ba4 Kc8 9. Rb4 {Coordination again!} 1-0
[Event "?"]
[Site "?"]
[Date "2016.12.24"]
[Round "?"]
[White "Lolli's Position "]
[Black "Kings on the bishop's file"]
[Result "1-0"]
[Annotator "Matthew Sadler"]
[SetUp "1"]
[FEN "2k5/3r4/2K5/2B5/8/8/8/4R3 w - - 0 1"]
[PlyCount "19"]
{[#]} {The difference between this position and the Philidor position we
examined in a previous article is that White has less room to play with on the
short side of the Black king. Moreover, the bishop on c5 does not cover a
square on Black's back rank on the short side of the king (as the bishop on d5
covered a8 in Philidor's position). This makes it easier for Black to cover a
mate on the 8th rank from a rook on a8. However, the downside to Black's
position is that his king is extremely constricted once it flees to the a-file.
White gains the extra possibility of delivering mate with a king on c6, bishop
on d6 (covering the escape square b8) and a rook on the a-file. White thus
maintains the ability to mate on 2 sides and this is again too much for Black
to cope with. In fact, White's key technique is to force the Black king to the
a-file.} 1. Re8+ Rd8 2. Re7 Rd2 3. Rh7 {The standard reaction when Black
places his rook on the second rank. This temporising move forces Black to
adjust his rook to a rank on which he will have to step on a square of the
colour of the White bishop to check the White king on the c-file. This allows
White the opportunity to move his bishop away from his king and simultaneously
cover Black's checking square on the c-file. This prevents Black from checking
the White king away from its dominating post on the 6th rank.} Rd1 4. Ra7 Rb1 (
4... Kb8 5. Ra4 Rc1 6. Re4 {with inevitable mate}) 5. Ba3 {Again familiar from
the Philidor position. Any Black move now worsens his defensive structure.} Rb3
(5... Kb8 6. Re7 {The difference with the Philidor position:} (6. Ra4 Kc8 7.
Rh4 Rd1 {defends as here White canot cover d8 with his bishop while still
covering c1.}) 6... Ka8 {This defence is less effective than in the Philidor
position as White doesn't have to work too hard here to give mate on the
a-file.} 7. Re5 Rb7 8. Rd5 {Zugzwang. Any Black move allows mate in 4.}) 6. Bd6
Rc3+ 7. Bc5 Rb3 8. Rc7+ {Again the difference with the Philidor position: 8.
Ra4 doesn't achieve anything. The key technique is to drive the Black king to
the a-file.} Kb8 (8... Kd8 9. Rf7 {The point of White's Ba3-d6-c5 maneouvre.
Black cannot play ...Re3 to block on the e-file so he must feel instead to the
corner. And this sanctuary proves to be a fatal trap.}) 9. Re7 Ka8 10. Re4 {
with mate in 4.} 1-0
[Event "?"]
[Site "?"]
[Date "2016.12.24"]
[Round "?"]
[White "Lolli's position"]
[Black "Kings on the knight's file"]
[Result "1/2-1/2"]
[Annotator "Matthew Sadler"]
[SetUp "1"]
[FEN "1k6/2r5/1K6/1B6/8/8/8/3R4 w - - 0 1"]
[PlyCount "28"]
{[#]} {The first thing you notice is how little space White has on the short
side of the king to mate the Black king. Moreover, White does not have the
typical retreat of the bishop to cover checking squares behind the White king:
the bishop is too close to the edge of the board. Lastly, since White has a
light-squared bishop, he cannot force Black's king on to the a-file and keep
it there as he cannot cover Black's escape square back to b8. All in all,
White's prospects don't look good!} 1. Rd8+ Rc8 2. Rd7 Rc2 3. Rh7 Rc1 4. Bc6 (
4. Rb7+ Kc8 5. Ra7 Kb8 {White cannot generate any threats on the short side of
the king.}) 4... Rb1+ 5. Kc5 Rc1+ 6. Kd6 {This is White's most dangerous
attempt: to bring the White king to d6 and the bishop to d5 and hope to emerge
in a side-variation of a Philidor position!} Rf1 7. Bd5 Rf6+ {A massively
important defensive technique. By checking from the side, White drags the
White bishop away from d5 and secures some extra freedom for his king.} 8. Be6
Rf2 9. Rh8+ Kb7 10. Bd5+ Ka6 11. Kc5 Rc2+ 12. Bc4+ Kb7 13. Rh7+ Kc8 14. Rg7 Rc1
{leading to the Cochrane defence.} 1/2-1/2
[Event "?"]
[Site "?"]
[Date "2016.12.24"]
[Round "?"]
[White "Lolli's position"]
[Black "Kings on the rook's file"]
[Result "1-0"]
[Annotator "Matthew Sadler"]
[SetUp "1"]
[FEN "k7/1r6/K7/B7/8/8/8/2R5 w - - 0 1"]
[PlyCount "15"]
{[#]} {You might think that if the position with the kings on the knight's
file is drawn, then this position must also be drawn. After all, White has
absolutely no short side to play with. However, just as in the position with
the kings on the knight's file, White can attempt to transfer his king to a
more central position. In this position - unlike the position on the knight's
file - Black's king is so constricted that he cannot properly oppose the plan.
} 1. Re1 Rb3 2. Re6 Rb2 3. Rf6 {A tempo to force the Black rook to a worse
position.} Rb1 4. Bb6 Ra1+ 5. Kb5 Rb1+ 6. Kc6 {The position of the White rook
on the 6th rank prevents Black from applying the plan of ...Rf1-f6+ as in the
previous example.} Rc1+ 7. Bc5 Rb1 8. Rf4 {winning} 1-0
[Event "4NCL"]
[Site "?"]
[Date "2016.12.05"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Tan, Justin1"]
[Result "1-0"]
[ECO "E55"]
[Annotator "Matthew Sadler"]
[PlyCount "71"]
[EventDate "2016.12.05"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O cxd4 8. exd4
dxc4 9. Bxc4 b6 10. Re1 Bb7 11. Bd3 Nbd7 12. a3 Bxc3 13. bxc3 Qc7 14. c4 Rfe8
15. Ne5 Nxe5 16. Rxe5 Qc6 17. Qf1 Nd7 18. Re3 Qd6 19. Bb2 Nf8 20. Rae1 Red8 21.
Qe2 Qf4 {I spent about 20 minutes on my move. Partly calculating variations
and partly wondering whether I should play practically instead. Black's last
move signals his intention to break up White's strong centre and bishop pair
by sacrificing the exchange on d4. I spotted fairly quickly that the desirable
22.Rg3 would set an evil trap by meeting 22...Rxd4 with 23.Qe3 winning on the
spot. I was seriously tempted to break off the calculation of variations and
keep the (time) pressure on Black by playing 22.Rg3 quickly. Which would
have been the best choice? There's probably no correct answer. During the game
I cut through the decision by reminding myself of the truth that to be a
strong player, you need to be able to do both. The only way you prove that you
can, is to do during a game. There was an opportunity to calculate here, so
why not take it?} 22. d5 (22. Rg3 Ng6 {is necessary} (22... Rxd4 23. Qe3 {
was what I suspected he had missed!}) 23. Rg4 Qh6 {We looked at this together
after the game and it wasn't easy to exploit the queen's crazy position.})
22... exd5 23. Be5 Qh6 (23... Qh4 24. Rh3 Qe7 25. Bxh7+ Nxh7 26. Qh5) 24. Rh3
Qc6 (24... Qe6 25. Qh5 Qh6 {The toughest defence} (25... h6 26. Rg3) (25...
dxc4 26. Bxh7+ Nxh7 27. Qxh7+) (25... g6 26. Qh6 f6 27. Bxg6 hxg6 (27... Nxg6
28. Qxh7+ Kf8 29. Qxg6) (27... fxe5 28. Bxh7+ Kf7 (28... Kh8 29. Bg6+) 29. Rf3+
Ke7 30. Qg7+ {was my win. There are even better!}) 28. Bc3 {was my win}) 26.
Qxh6 (26. Qg4 Bc8 {Aaagh!}) (26. Qd1 Qc6 {forced now as ...Qe6 can be met by
Bxg7} 27. Qg4 {While analysing on my pocket set, I got intrigued by this
possibility. I was surprised how dangerous it was, and that before the engine
pointed out an extra resource...} g6 (27... Ng6 28. Qh5 h6 29. Bxg7 dxc4 30.
Be4 Qxe4 (30... Nf4 31. Bxc6 Nxh5 32. Bxb7) 31. Rxe4 Bxe4 32. Bxh6 {wins}) (
27... f6 28. Rh6 {my favourite move!} (28. Rg3 g6 29. cxd5 Rxd5 30. Bb2 {
is Komodo's favourite line with a dangerous initiative for the pawn}) 28... Re8
(28... Kh8 29. Rxh7+ Nxh7 30. Qh5) (28... g6 29. Bxg6) (28... Qd7 29. Bf5) (
28... Bc8 29. Qg3) (28... dxc4 29. Bxc4+ Kh8 30. Rxf6) 29. Re3 {I thought this
was just winning, but Komodo has other ideas} (29. Rxf6 Rxe5 (29... Qxf6 30.
Bxf6 Rxe1+ 31. Bf1 Ng6 32. Bc3 {is a bit better for White according to Komodo})
30. Rxf8+ Rxf8 31. Rxe5 {Black looks like he'll manage to equalise somewhere})
29... g6 30. Bxg6 hxg6 31. Rxg6+ Nxg6 32. Qxg6+ Kf8 33. Qh6+ (33. Bd6+ Qxd6 34.
Qh6+ {is just a draw by repetition}) 33... Ke7 34. Qg7+ Kd8 35. Bxf6+ Kc8 36.
Rxe8+ Qxe8 37. Be5 Qd8 38. Qg4+ Qd7 39. Qg8+ Qd8 40. Qg4+ {is another draw
according to Komodo}) 28. Qf4 {Analysing in the train, I thought that this
move was impossible but...} (28. cxd5 Rxd5 (28... Qxd5 29. Bc4) 29. Bc4 Rc5 (
29... Bc8 {looks very clever but...} 30. Bxd5 Qxd5 31. Qf3 {is the refututation
})) (28. Qg5 Re8) 28... Re8 (28... dxc4 29. Rf3 {I'd missed this very strong
move} (29. Be4 Qxe4) 29... Qe6 30. Bxc4 Bd5 31. Qh6 {wins for White. Beautiful!
}) (28... Rd7 29. cxd5 (29. Qh6 f6 {is fine for Black. In comparison to the
game, Black already has ...Rd7 to defend the second rank}) 29... Qxd5 30. Bf1 {
Very calm. Thanks to the rook's presence on d7, Black no longer has ...Nd7
while the Black queen has been deflected from c6: Qf6 is coming!} Re8 31. Qf6
Rxe5 32. Rxe5 {is much better for White}) (28... Nd7 29. Qh6) 29. cxd5 Qxd5 30.
Bf1 {Very calm again. I thought that the bishop on e5 was too vulnerable to
give White time for this, but Komodo finds another amazing idea} Re6 (30... Nd7
{I thought that Black was on top but...} 31. Rxh7 Nxe5 32. Qh6 {Wow! Didn't
realise this was possible!}) 31. Rf3 Qd7 32. Rfe3 Rae8 33. Bf6 Bc6 34. Qh6 Rxf6
35. Rxe8 Qxe8 36. Rxe8 Bxe8 {is Komodo's #1 line when White is better}) 26...
gxh6 27. Rg3+ Ng6 28. f4 {This looked pretty ropey for Black, but the engine
amazed me as usual with his defensive tight-rope walking skills!} dxc4 (28...
Kf8 29. Bc3 dxc4 30. Bxc4 Rac8 31. Bb3 Bd5 32. f5 Bxb3 33. fxg6 Bc2 {I'd
missed this of course!} 34. gxh7 Bxh7 35. Bb4+ {is much better for White}) (
28... f5 29. Bxf5 Kf7 30. Bxg6+ hxg6 31. f5 {appealed to me a lot} g5 (31...
gxf5 32. Rg7+) (31... dxc4 32. Rxg6 Bd5 33. Rxh6 Re8 34. g4) 32. Rh3) 29. Bxc4
Rac8 30. Bb3 (30. Bd3 Kf8 31. Bf6 Rd6 32. Rxg6 {looked strong to me too, but
I'd reckoned without} hxg6 33. Be7+ Kg8 34. Bxd6 Rd8 {winning back one of the
bishops}) 30... Bd5 31. f5 Bxb3 32. fxg6 Rd1 33. Rxd1 Bxd1 34. gxh7+ Kxh7 35.
Rg7+ Kh8 36. Rxf7+ Kg8 37. Rg7+ Kf8 38. Rxa7 Rc6 {is Komodo's certainly not
over yet line!}) 25. Qh5 g6 {This was very welcome! It gave me an opportunity
to demonstrate the nicest part of my calculation. I'd seen virtually to the
end.} (25... Qh6 {is the same as 24...Qe6}) 26. Qh6 f6 27. Bxg6 Rd7 {This was
the move that cost me a few minutes. Mentally, I just needed to take a step
back to find the win.} (27... hxg6 28. Bc3 (28. Bf4 {is even cleaner. I don't
need to cover e1 against 24...Qc6!} Kf7 29. Qh8 g5 30. Rh7+ Nxh7 31. Qxh7+ Kf8
32. Re7) 28... Kf7 29. Qh8 dxc4 30. Rh7+ Nxh7 31. Qxh7+ Kf8 32. Bb4+ Rd6 33. f3
Qd5 34. Re7 {was my win: pleased I saw correctly there were no checks}) (27...
Nxg6 28. Qxh7+ Kf8 29. Qxg6) (27... fxe5 28. Bxh7+ Kf7 29. Rf3+) 28. cxd5 Qxd5
29. Bxh7+ Rxh7 (29... Nxh7 30. Rg3+ Kf7 (30... Kh8 31. Bxf6+) 31. Qxh7+) 30.
Rg3+ Kf7 (30... Kh8 31. Bxf6#) 31. Qxf6+ Ke8 32. Bf4+ (32. Bb8+ Kd7 33. Qxf8 {
was even better according to Komodo. I saw it (it was actually the line I'd
chosen when calculating 22.d5, but once I got to the position, I preferred to
win the queen easily in a forced manner}) 32... Kd7 33. Rg7+ Rxg7 34. Qxg7+ Kc6
35. Qc7+ Kb5 36. Re5 1-0
[Event "Moscow International-02"]
[Site "Moscow"]
[Date "1935.02.24"]
[Round "8"]
[White "Spielmann, Rudolf"]
[Black "Lasker, Emanuel"]
[Result "1/2-1/2"]
[ECO "C47"]
[Annotator "Matthew Sadler"]
[PlyCount "81"]
[EventDate "1935.02.15"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "URS"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8.
exd5 Qe7+ 9. Qe2 Qxe2+ 10. Kxe2 cxd5 11. Nb5 Kd8 12. Rd1 c6 13. c3 Re8+ 14. Kf1
Bf8 15. Nd4 Kc7 16. Bf4+ Kb6 17. a4 a5 18. b4 axb4 19. a5+ Kb7 20. cxb4 Ne4 21.
Nxc6 {Dramatic, but White had a much simpler way to win: I haven't been able
to find any other annotations of this game except for the Kmoch annotations in
the tournament book quoted (and improved on) by Heidenfeld. John Nunn doesn't
examine the game in his wonderful examination of Lasker's Games ("John Nunn's
Chess Course") and it doesn't make it into Verkhovsky's "Draw!: The Art of the
Half-Point in Chess"} (21. Rdc1 Bd7 22. a6+ Kb6 23. Be3 Kc7 24. Nxc6 Bxc6 25.
b5) 21... g5 (21... Kxc6 22. Rac1+ Nc5 (22... Kd7 23. Bb5+) (22... Kb7 23. Rc7+
) 23. Be3 {wins}) 22. Bxe4 (22. Be5 {Komodo} Kxc6 23. Rac1+ Kd7 24. Bb5+) 22...
Rxe4 (22... dxe4 23. Nd8+ Ka6 24. Bxg5) 23. Nd8+ Ka6 24. Bxg5 (24. Rxd5 gxf4 (
24... Rxf4 {stops White from playing Rc1-c7+xf7 as after 24...gxf4, but
releases Black access to White's back rank which removes some of Black's
counterthreats against the White king} 25. b5+ Ka7 26. Rc1 Kb8 27. a6 {My
first choice. The threat is Nc6+-e7+ winning the bishop on c8.} (27. b6 Ba6+
28. Kg1 Rc4 29. Rxc4 Bxc4 30. Rxg5 {I thought this might be very strong for
White, but Komodo unimpressed.} Ra6 31. Rg8 Ba3 {was my defensive setup.
Komodo thinks about equal} 32. Nxf7+ Kb7 33. Nd8+ Kc8 34. Rh8 Bb2 35. Re8 Ba3)
27... Ba3 28. Rc3 {Possible as Black no longer has any threats against White's
back rank}) 25. b5+ Ka7 26. Rc1 {Threatening Rc7+xf7 and then a later Nc6+} Kb8
(26... Ba3 27. Rc7+ Kb8 28. Rxf7 Rxa5 29. Nc6+ Ka8 30. Rd8 {Komodo} (30. Nxa5
Bb4 31. f3 Re1+ 32. Kf2 Bxa5 33. b6 {also wins})) (26... f3 27. Rc7+ Kb8 28.
Rxf7 Rxa5 29. Nc6+ Ka8 30. Nxa5 Bb4 31. Rd1 Bxa5 32. Ra1 {was my win. Komodo
goes just a bit further} Re1+ 33. Rxe1 fxg2+ 34. Kxg2 Bxe1 35. Rxh7) 27. a6 {
Komodo's #1 preference. The pawn on a6 restricts the king on b8 which makes
Nc6+ suddenly very dangerous} (27. b6 {Threatening primarily Rxc8+ and b7. b7
followed by a pin on the b-file is also a dangerous option} Ba6+ 28. Kg1 Rc4 {
I was annoyed by this resource. Actually Komodo says the position is now equal}
29. Rxc4 Bxc4 30. Rd7 Bb5 31. Rb7+ Kc8 32. Ra7 Kb8 (32... Rxa7 33. bxa7 {wins!}
) 33. Rb7+ Kc8 34. Ra7 {My line, and Komodo's main line too!}) (27. f3 Re8 {
Missed this the second time around (I had seen it while analysing in the bus...
)} (27... Ra4 28. a6 (28. b6 {I also thought this was good now, but it doesn't
address the main problem...} Ba6+ 29. Ke1 Rc4 {Black can still block the 4th
rank})) (27... Re3 28. b6 {was the idea} Ba6+ 29. Kg1 {No ...Rc4 blocking
option now we have forced the rook off the 4th rank} Bb7 30. Rd7 {My line.
Komodo goes a bit further} Re7 31. Rxe7 Bxe7 32. Nxb7 Kxb7 33. Rc7+) 28. a6 Ka7
29. Rc7+ Kb8 30. Rxf7 Rxa6 31. bxa6 Bxa6+ 32. Kf2 Re2+ 33. Kf1 Re8+ {is a draw
by repetition}) 27... Re8 {The only way really to defend against the threat of
Nc6+-e7} (27... Ba3 28. Rc3 Rxa6 29. Rxc8+) 28. g4 f3 29. h3 Be6 30. Nxe6 fxe6
31. Rd3 {is Komodo's #1 line. White is better, but Black is still fighting}) (
24. Be3 {is Stockfish's very sensible preference, leaving the pawn on g5 to
focus on the essential business of getting the b-pawn moving} Be6 25. Nc6 Bg7
26. Rab1 Kb5 27. Na7+ Kc4 28. Bb6 {and b5 will follow. Still looks messy
though!}) 24... Be6 {Lasker was reknowned as a fantastic defender. So far he's
been outclassed and has simply had to roll with the punches. Typically however,
he's emerged into a position with defensive possibilities. After White struck
with 21.Nxc6, it seemed that Black's position would be blown away, but Lasker
has managed to hold on to some of the basis of his position, albeit in a
somewhat tattered state. First of all, the downside: Black has lost 2 pawns,
and his remaining pawns are all isolated. His king is also denuded of pawn
cover which makes it vulnerable to attack along the open c-file. On the
positive side, Black has maintained his central pawn on d5 (which blocks an
entry file for the White rooks) and has gained the advantage of the 2 bishops.
White can capture one of Black's bishops, but this would improve Black's pawn
structure greatly so White needs to consider the exchange carefully. Moreover,
after Nxe6 ...fxe6, while White's (extra) queenside pawns are on dark-squares
and form easy targets for the Black pieces, White's remaining minor piece (the
dark-squared bishop) has no targets on the kingside! How would White proceed
then? My favourite idea was to destroy Black's advantage of the 2 bishops
and then to invest one of my extra pawns to create fresh weaknesses in Black's
kingside pawn structure. This is not immediately winning, but it takes play
into an ending where White is a pawn up with a better pawn structure and - at
the very least - equivalent activity. Reasonable technique should be
sufficient in such circumstances to finish off the game. The text is still
winning of course but requires White to maintain a higher level of calculation.
} 25. Nc6 (25. Nxe6 fxe6 26. Rdc1 (26. Re1 {Komodo's 2nd best move was my line.
} Bxb4 (26... Rxe1+ 27. Rxe1 Bxb4 (27... Re8 28. Bd2 {White is excellently
organised now and he has exhanged off Black's most active rook on e4}) 28.
Rxe6+ Kxa5 29. Re5 {wins a second pawn}) 27. Rxe4 dxe4 28. Be3 {with Rc1 to
follow should be enough to win in the long run}) 26... Bxb4 (26... Rc4 27. Bd2
Rb8 28. Re1 Rc6 29. Rab1 Kb5 30. f4 {exerts control over Black's position. 2
extra pawns, the rook on e4 has been sent back to c6 and a new kingside
weakness (e6) has been created and fixed.}) 27. Rc6+ Kb5 28. Rb6+ Kc4 29. Rb1 {
is Komodo's cleanest win}) 25... Bg7 {To stop a knight establishing itself on
d4} 26. Rac1 {looking for Rc5 followed by b4-b5+} Rc4 {Blocking White's threat
and preparing ...Kb5 challenging the knight on c6 and thus weakening White's
defence of his b4 pawn.} 27. Be3 {Looking to cement White's grasp of d4
without allowing Black any destablising factors in the position. Lasker
continues to shake and pull at White's position to stop White from achieving
the solid structure he is seeking. He sends his king amongst White's pawns and
introduces the spectre of Black reestablishing material equality by grabbing
both White's queenside pawns. He makes a number of tactical mistakes along the
way, but the approach is spot on. He plays with maximum aggression and gives
White something to lose if his calculation fails.} (27. Rxc4 dxc4 28. Nd4 Bxd4
29. Rxd4 {is also good for White but gives Black some hopes of counterplay with
} c3) 27... Kb5 28. Na7+ {Very dangerous tactically, but a positional risk as
the knight on a7 is poorly placed. Things have to work now or White might end
up losing a pawn with offside pieces if one line of White's calculation fails.}
(28. Nd4+ Bxd4 29. Rxd4 Rxd4 30. Bxd4 Kxb4 {The first moment that White has to
evaluate: is this the right way to give a pawn back to force Black into a
cheerless endgame? Considering Black's split kingside pawns (and thus White's
ability to invade there with his king) this should provide White with
excellent winning chances. It still requires a fair amount of technical work
and White avoided a similar decision on the 25th move. It is thus not
surprising that Spielmann continues aggressive tactical play.}) 28... Kxb4 (
28... Ka4 {was better according to Komodo. The text should lose by force.}) 29.
Bb6 (29. Rb1+ Ka3 (29... Ka4 30. Rd2 Rc3 31. Ra2+ (31. Nb5 {(my line) also
wins but much less convincingly}) 31... Ra3 32. Bc5 {Komodo}) (29... Kxa5 30.
Rd2 Ra4 (30... Bd7 31. Rxd5+) 31. Nc6+ Ka6 32. Rb6#) 30. Rd2 {threatening Nb5+}
(30. Nb5+ Ka4 31. Rd2 Rb4 {keeps Black alive!}) 30... Rxa7 31. Bxa7 {should
win for White}) 29... Rc3 {A mistake in return. Komodo thought Black if
anything was better after 29...Bf5! The players trade mistakes now until the
40th move. Quite appropriately however, Black's active king saves the day!} 30.
Rb1+ Rb3 31. Nc6+ Ka4 32. Bd4 Rxb1 33. Rxb1 Bxd4 34. Nxd4 Ra6 35. Ra1+ Kb4 36.
Ke2 Bd7 37. Nc2+ Kc3 38. Ne3 Bb5+ 39. Ke1 d4 40. Rc1+ Kd3 41. Rd1+ 1/2-1/2
[Event "Nurnberg"]
[Site "?"]
[Date "1955.??.??"]
[Round "?"]
[White "Elsinger"]
[Black "Schmid"]
[Result "1/2-1/2"]
[ECO "C15"]
[Annotator "Matthew Sadler"]
[PlyCount "41"]
[EventDate "2017.01.10"]
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 c5 5. exd5 Qxd5 6. Bd2 Bxc3 7. Bxc3 cxd4 8.
Bxd4 Qxg2 9. Qf3 Qxf3 10. Nxf3 f6 11. Rg1 Kf7 12. Nd2 Nc6 13. Bc5 Nge7 14. Nc4
Rd8 15. Nd6+ Kg8 16. O-O-O Nd5 {In this position, 17.Bc4 led to a neat
perpetual. 17.Be4 looked stronger to me as I couldn't see how Black can
unravel and Komodo concurs. However, the line that attracted me was
Heidenfeld's suggestion of 17.Rxg7+!} 17. Bc4 (17. Rxg7+ Kxg7 18. Rg1+ Kf8 {
Unfortunately ruins White's party!} (18... Kh8 19. Nf7#) (18... Kh6 19. Nf7+
Kh5 20. Be2+ Kh4 21. Rg7 {My second go was much more powerful} (21. Nxd8 Nxd8
22. c4 {was recommended by Heidenfeld, and also gives White some advantage but
the text is much clearer}) (21. f4 {was my first attempt, clearing f2 for a
check from the White bishop on c5.} Nxf4 (21... e5 {was the engine's
improvement on my analysis} 22. Bf2+ Kh3 23. Bf1+ Kxh2 24. Rg2+ Kh1 25. Rg1+
Kh2 {with a very neat perpetual that often crops up in these lines!}) 22. Bf2+
(22. Rg4+ {is best giving White some advantage after} Kh3 23. Rxf4 e5 24. Rf3+
Kxh2 25. Nxd8) 22... Kh3 23. Bg4+ Kxh2 24. Bf3 {It all looks pretty terminal,
but I found the following amazing defence:} Ne2+ 25. Bxe2 Nd4 26. Bf1 e5 27.
Nxd8 Bh3 28. Nxb7 Bxf1 29. Bxd4 Bg2 {Wow! Black has no way to maintain his
material advantage! This train line was confirmed by the engines - pleased
about that!}) 21... Kh3 (21... h5 22. Nxd8 Nxd8 23. f3 Nf4 24. Bf1 {followed
by Bf2 mate}) (21... h6 22. Rh7 Kh3 23. Bf3 Kxh2 24. Rxh6+ Kg1 25. Rh1#) 22.
Bf3 {My best line} (22. Bg4+ Kxh2 (22... Kh4 23. f3) 23. Bf3 {was my first
idea, and is also very powerful} Nf4 (23... e5 24. Nxd8 Nxd8 25. Rxh7+ Bh3 26.
Bxd5) 24. Rxh7+ Nh3 25. Nxd8 Nxd8 26. Bg4) (22. Rxh7+ Kg2 23. Rg7+ {is a
transposition} Kxh2 (23... Kh3 24. Bf3 {--> 22.Bf3}) 24. Bf3 {--> 22.Bg4+})
22... h5 23. Rg3+ Kh4 (23... Kxh2 24. Rg2+ Kh1 25. Rg4+ Kh2 26. Rh4+ Kg1 27.
Rh1#) 24. Nxd8 Nxd8 25. Bxd5 exd5 26. Be7 {with Bxf6+ mate to follow. I liked
that a lot when I saw it!}) 19. Nxb7+ (19. Bxh7 Nde7) (19. Nf5+ Nde7 20. Nh6 {
Rg8+ is such a nice mate but...} Ke8) (19. Nxc8+ Nce7 20. Nd6 b6 21. Ba3 {
didn't thrill me too much. Komodo suggests} a5 22. c3 Nb4 {as a clear path to
a Black advantage}) 19... Kf7 20. Nxd8+ Nxd8 21. Bxh7 Ne7 {is better for Black}
) (17. Be4) 17... Ne5 18. Rxd5 (18. Nf5 {was suggested by Heidenfeld as a
winning attempt.} g6 19. Ne7+ Kg7 20. Nxd5 exd5 21. Bxd5 Bg4 22. Bxb7 Bxd1 23.
Bxa8 Bxc2 24. Kxc2 Rxa8 {Komodo's line looks a touch better for White. The
text forces a draw}) 18... Nxc4 19. Nf5 Rxd5 20. Nh6+ Kh8 21. Nf7+ {with a draw
} 1/2-1/2
[Event "La Plata-New York radio m"]
[Site "La Plata"]
[Date "1947.??.??"]
[Round "?"]
[White "Reshevsky, Samuel Herman"]
[Black "Stahlberg, Gideon"]
[Result "1-0"]
[ECO "D77"]
[Annotator "Matthew Sadler"]
[PlyCount "46"]
[EventDate "1947.??.??"]
[EventType "team-tourn"]
[EventRounds "1"]
[EventCountry "ARG"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. d4 Bg7 5. O-O O-O 6. c4 c5 7. dxc5 dxc4 8. Qc2
Qd5 9. Na3 Qxc5 10. Qxc4 Qxc4 11. Nxc4 Nc6 12. Nce5 Nxe5 13. Nxe5 Ne8 14. Nd3
Nd6 {"What a boring position" I thought when I came across the diagram in the
book. And then a strange parallel struck me. In a previous blog article - http:
//matthewsadler.me.uk/chess-for-life/alekhines-themes-move-like-morphy/ - I
talked about the secret of Morphy's attacks, in particular their incredible
velocity. My theory was that Morphy - just like Alekhine after him - started
his attacks with an early move that created some awkwardness in his opponent's
position. Leading on from that, Morphy's subsequent developing moves contained
threats that the opponent had to parry with (non-developing) pawn moves. After
a couple of moves like that, Morphy had built up such a lead in development
that his attack was irresistible. Take a look at Morphy's game against Count
Isouard in that article to see a perfect illustration of this technique.
Play in symmetrical positions is less extreme, but the same principles apply.
The first player to move attempts to extract a "holding" move in reply to a
developing move of his own and therefore hopes to gain an initiative through
more rapid development. Let's see how that works out in the game.} 15. Bg5 {
White is first to move and takes the chance to put pressure on e7. As
Heidenfeld points out, Black cannot respond in kind with 15...Bg4 and has to
respond to White's threat with a solid defensive move. White therefore sees
the glimmer of an initiative.} Re8 (15... Bg4 16. Bxe7 (16. f3 f6 17. Bxf6 {
is also better for White}) 16... Bxe2 17. Bxd6 (17. Rfe1 Bxd3 18. Rad1 Ba6 19.
Rxd6 Rfe8 20. Rd7 {is Komodo's favourite line which also looks more pleasant
for White}) 17... Bxd3 18. Bxf8 Bxf1 19. Bxg7 Bxg2 20. Kxg2 Kxg7 21. Rc1 {
is a more pleasant rook ending for White due to his early occupation of the
7th rank.}) 16. Rac1 {Black now played 16...h6 17.Be3 Bf5 and eventually lost,
but I was curious what would have happened after 16...Bg4 (not mentioned by
Heidenfeld) After all, if Bg5 could hurt Black, then ...Bg4 should hurt White
in this symmetrical position!} Bg4 (16... h6 17. Be3 Bf5 18. Rc7 Bxd3 19. exd3
Rac8 20. Rfc1 Rxc7 21. Rxc7 Bxb2 22. Bxb7 Bf6 23. Bc6 Rb8 24. Bxa7 Rb1+ 25. Kg2
Ra1 26. a4 Nf5 27. Bb6 Bd4 28. a5 Bc3 29. Ra7 Nd4 30. Be4 Nb3 31. a6 Bd4 32.
Bxd4 Nxd4 33. Rd7 f5 34. Bd5+ {was the game}) 17. Nb4 {Another idea I had,
deperately trying to keep White's momentum going} (17. Rfe1 {If White is
forced to play this quiet protecting move, then you feel that the force of his
initiative is dying down.} Rac8 18. Rxc8 Bxc8 19. Rc1 {White manages to keep
things going a little, as he is first to the c-file} Kf8 {My idea, which I
thought contained a trap...} (19... h6 20. Be3 b6 {is Komodo's preferred recipe
}) (19... Bd4 20. Rc7 f6 21. Bd2 Bb6 {is another Komodo idea}) 20. Rc7 Nb5 (
20... h6 21. Be3 Nb5 {is also sensible}) 21. Bxe7+ (21. Rc5 Nd4) 21... Kg8 22.
Rc5 Nd4 {I thought that this was turning out well for Black, but Komodo stays
calm} 23. Nf4 {Komodo} (23. e3 Bf5 24. exd4 Bxd3 25. Rc7 Bf8 {was my
spectacular idea with sudden back-rank threats against the White king}) 23...
Bd7 24. Nd5 Nxe2+ 25. Kf1 Nd4 {looks pretty even to me.}) (17. Rc2 {This was
the move I really wanted to play: it feels as if White can keep the momentum
he created with 15.Bg5 going by elegantly protecting his e-pawn while
preparing to double on the open c-file. However, chess is a strange game!
Sometimes, logical extra moves (such as Rc1-c2) just serve to give the
opponent a better idea of where he should put his pieces! Black doesn't need
to just think of neutralising White's control of the c-file: he can
counterattack!} Nf5 {A very unpleasant idea, threatening ...Nd4} (17... Nb5 {
A similar idea to ...Nf5 but it allows the bishop to retreat to e3 to cover d4}
18. Be3) 18. e3 (18. f3 Nd4 19. Rd2 Be6 20. b3 Rac8 {is Komodo's best, but
Black just stands fine}) 18... Rad8 {is suddenly awkward for White! His bishop
on g5 is trapped and his own light-squared bishop will get a square on d1 once
the knight leaves d3.}) 17... Bxb2 18. Rc2 Bf6 (18... Be5 19. Nd5 f6 {is even
better according to Komodo}) 19. Bxf6 exf6 20. Rd1 {got me interested for a
while, but Black can defend without too much difficulty} (20. Nd5 Rxe2) 20...
Nb5 (20... Rad8 21. f3 Be6 22. Rcd2 a5 23. Nd5 (23. Nc2 Rc8) 23... Bxd5 24.
Rxd5 {I thought Black had 2 possible ways of dealing with White's threats, but
my analysis was not up to standard I'm afraid} Rxe2 (24... Re6 25. e4 Kf8 26.
Bh3 f5 27. e5 {missed that one!}) 25. Rxd6 Rxd6 26. Rxd6 Rxa2 {I thought this
might be quite interesting due to White's passive bishop and the open 2nd rank
but...} 27. Rb6 {Ouch! Missed that one too!}) 21. Bxb7 Rab8 22. Bf3 Bxf3 23.
exf3 Na3 {is nothing for White. So indeed nothing much happening in the
position, but I did like the thoughts I had about such symmetrical positions.
It's the first time in a long whiile that I've really enjoyed analysing one,
and that's always the first step to playing them well!} 1-0
[Event "London British CF International Masters"]
[Site "London"]
[Date "1922.08.07"]
[Round "6"]
[White "Atkins, Henry Ernest"]
[Black "Rubinstein, Akiba"]
[Result "1-0"]
[ECO "D60"]
[Annotator "Sadler,Matthew"]
[PlyCount "69"]
[EventDate "1922.07.31"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ENG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Bg5 Nbd7 5. e3 Be7 6. Nc3 O-O 7. Bd3 {An
example of Atkins' uncomplicated opening play with White. As R.N. Coles
comments, "At this date the chess world was becoming conscious of the 'fight
for the tempo' in this opening, and it was, therefore, usual to defer
development of this bishop in the hope of recapturing on c4 in one move.
Atkins disdains such slender and doubtful finesses"} dxc4 8. Bxc4 a6 9. a4 c5
10. O-O Qa5 {An unusual move from Rubinstein, but not stupid. Black activates
his queen - aiming at White's weakened queenside squares such as the pawn on
a4 and the b4 square - before saddling White with an IQP. Moving the queen
from d8 allows Black to connect his rooks and prepares the solid manoeuvre ...
Bd7-e8, strengthening the f7 square - very prudent against Atkins seeing his
previous games in this structure!} 11. Qe2 cxd4 12. exd4 {Atkins was always
happy to take on the attacking side of the IQP. He scored 2 quick wins at the
Amsterdam 1899 tournament with this structure: against Pelzer in 25 moves, and
against Te Kolste in 19 moves, both times sacrificing a knight on f7!} Nb6 13.
Bd3 Rd8 14. Rfd1 Bd7 15. Ne5 (15. Bxf6 Bxf6 16. Qe4 {is a sharp win of a pawn:}
g6 17. Qxb7 {Black's 2 bishops and the weakness of White's queenside feels
like compensation}) 15... Be8 16. Qe3 {This is so risky, I'm tempted to
believe that it was a tactical oversight! Atkins wants to bring his queen to
h3 but he must have missed Black's next idea.} Nfd5 17. Qg3 {Atkins misses the
fantastic justification of 17.Qh3 and enters into fairly speculative territory.
} (17. Qh3 {is the first move you look at, but White's attack looks very
unconvincing after} Bxg5 18. b4 {Komodo. I only vaguely grasped what he was up
to! It's major virtue is that it is extremely forcing: to rescue his queen,
Black can choose out of 2 recaptures. I can't take any credit for any of the
ensuing variations!} (18. Qxh7+ Kf8 19. Qh8+ Ke7 20. Qxg7 Bf6 21. Ng6+ Kd7 {
and the king escapes to the queenside.}) 18... Qxb4 (18... Nxb4 19. Qxh7+ Kf8
20. Qh8+ Ke7 21. Qxg7 Bf6 22. Ng6+ {The deflection of the knight from d5, has
unprotected the bishop on f6!} Kd7 23. Qxf6 fxg6 24. Rab1 Nxd3 25. Rxd3 Kc7 26.
d5 {It still looks very murky to me, but Komodo sees a clear advantage for
White}) 19. Nxd5 Rxd5 (19... Nxd5 20. Qxh7+ Kf8 21. Rab1 {is very unpleasant
for Black. Once the White rook comes to b7, Black's escape square for his king
is cut off!} Qxa4 {Attacking the rook on d1} 22. Bc2 Qa5 23. Rxb7 {Threatening
Qh8+ mate} Nc7 24. Qh8+ Ke7 25. Qxg7 Bf6 26. Ng6+ Kd7 27. Qxf6 fxg6 28. Rc1
Rdb8 29. Ba4+ {wins according to Komodo}) 20. Rab1 Qd6 21. Qxh7+ Kf8 22. Qh8+
Ke7 23. Qxg7 Bf6 24. Ng6+ {Again the destruction of the knight on d5 leaves
Black's bishop on f6 unprotected} Kd7 25. Qxf6 fxg6 26. Be4 {Again seems very
murky to me, but Komodo sees a definite advantage for White. Amazing tactics!})
17... Bxg5 18. Qxg5 {Black has the possibility of ...f6 winning a piece,
either before or after ...Nxc3. Amazingly, White seems to have just enough to
keep the balance!} Nxc3 (18... f6 19. Qh4 fxe5 20. Qxh7+ (20. Bxh7+ Kf8 21. Rd3
{is mentioned in the tournament book according to Coles, but refuted
(correctly) by him with} Nf4) 20... Kf8 (20... Kf7 21. Bg6+ Kf6 22. Ne4+) 21.
Qh8+ Kf7 (21... Ke7 22. Qxg7+ Bf7 23. Bg6 Rf8 24. Ne4 {is suggested by Coles
and is indeed very powerful} (24. dxe5 {is also strong but a little less clear}
Rac8 25. b4 {My line. I really should have spotted this idea earlier!} Qxb4 26.
Nxd5+ Nxd5 27. Rxd5 (27. Rab1 Qc5 (27... Qa5 28. Rxb7+ Rc7 29. Rb8 {A gorgeous
tactic!}) (27... Qf4 28. Rxb7+ Rc7 29. g3 Qg5 (29... Qf3 30. Rd3) 30. Rb8 {
Again!}) 28. Rxb7+ Rc7 {though Komodo still prefers White after} 29. Rxc7+ Qxc7
30. h4) 27... exd5 28. Qf6+ Kd7 (28... Ke8 29. Bxf7+ Rxf7 30. Qe6+) 29. Bxf7 {
is very strong for White}) 24... Nc4 25. Ng5 Nd6 26. dxe5 Ne8 27. Qh7 Ndf6 28.
exf6+ Nxf6 29. Qh6 Ng4 30. Qh5 {was my line.. and Komodo's #1 line too! White
is winning}) 22. Ne4 {was Atkins' suggestion and it seems to be winning. Ng5+
followed by Qf8+ is a massive threat} Rd7 {was the best Komodo could come up
with} 23. dxe5 Ke7 24. Nd6 Rxd6 25. Qxg7+ Kd8 26. exd6 Qb4 27. a5 Nc8 28. Rac1
{is awful for Black according to Komodo}) 19. bxc3 Nd5 {Rubinstein doesn't
want to force a crisis yet and brings defensive pieces towards the kingside.
He perhaps unwittingly triggers a number of tempting tactical possibilities,
none of which seem to work however} (19... f6 {isn't mentioned by Coles but
looks a much more sensible attempt for Black as White's knight on c3 was a
powerful reinforcement of the attack} 20. Qh4 fxe5 21. Bxh7+ Kf8 22. Rd3 Rd7 {
looked pretty speculative to me. Komodo thinks equal!} 23. Re1 Rxd4 24. Rxd4
exd4 25. Rxe6 Nd5 26. Bf5 Qxc3 27. Qh8+ Kf7 28. Qh5+ {with a draw by
repetition was one line I came up with and Komodo finds it fairly plausible.})
20. Qh4 (20. Nxf7 {excited me for a little while but Komodo's} Kxf7 21. c4 {
exploiting the pin along the 5th rank!} h6 22. Qe5 Qc7 {neutralises this idea
effectively}) (20. c4 h6 (20... Nf6 21. Nxf7 {is the idea!}) 21. Qg4 Nb4 {
looks reasonable for Black}) (20. Bxh7+ {Again got me excited, but White has
too few pieces left to cause too much trouble} Kxh7 21. Rd3 f6 22. Qh4+ Kg8 23.
Rh3 fxe5 24. Qh8+ Kf7 25. Rh7 Ke7 26. Qxg7+ Kd6 27. c4 Rd7 28. Qf8+ Kc7 29.
Rxd7+ Kxd7 30. cxd5 {which Komodo sees as leading to a draw. Just as with 19...
f6, it feels as if White is having to show all the ingenuity to keep his
position together!}) 20... Nf6 21. c4 h6 {Rubinstein has played the middlegame
conservatively, and White has reached a pleasant Hanging Pawns structure. I
was very impressed with the calmness of White next few moves. Understanding
that the time is not yet ripe for an all-out kingside assault, Atkins cleverly
consolidates and strengthens his position. In this coming phase of play, the
White queen is the pivot of White's position.} 22. Qg3 Rac8 23. Bc2 Bc6 24. Qe3
{White has covered his a4 pawn with his bishop and his d4 pawn and queenside
dark-squares with his queen on e3. This consolidation convinces Rubinstein to
remove a defensive piece from the kingside (the bishop on e8) and place it
more aggressively on the a8-h1 diagonal.} b6 (24... Nd7 25. Nxf7 Kxf7 26. d5
exd5 27. cxd5 Bxd5 28. Rxd5 Qxd5 29. Bb3 Rc4 {Hadn't spotted that one} 30. Rd1
Qe6 31. Qxe6+ Kxe6 32. Bxc4+ {is sort of equal}) 25. Ra3 Ba8 26. Qf4 {Another
lovely queen move, moving a step closer to the kingside, eyeing the f7 square
which is no longer defended by Black's light-squared bishop and freeing the
3rd rank for the rook on a3 to move to the kingside. As John Nunn once
remarked, "A rook on the third rank plus a queen is very often a decisive
force even without additional assets"} b5 {Rubinstein takes immediate action,
trying to break the barrier posed by White's hanging pawns in order to
generate counterplay} 27. Rh3 (27. Rg3 Kf8 {is tough to break. I had thought of
} 28. Rh3 {My main line too} (28. Bg6 Rxc4 {A typical sacrifice that we shall
see many times in the ensuing variations} (28... fxg6 29. Rxg6 {is the nice
idea}) 29. Nxc4 bxc4 {is a little embarrassing for White as the retreat of the
bishop allows} 30. Bc2 Nh5) 28... Rxc4 29. Nxc4 bxc4 {looked balanced to me:
Komodo agrees}) 27... bxc4 {I would have played} (27... Rxc4 28. Nxc4 bxc4 {
in a flash! Black looked basically OK to me with a pawn for the exchange, a
passed c-pawn, some solid central squares and some White queenside weakness to
aim at and Komodo agrees giving White just a tiny edge. Rubinstein's choice is
extremely risky}) 28. Rxh6 {This was where my fun train analysis started!} Rc5
(28... Rxd4 {Not mentioned by Coles. Amazingly White doesn't have a direct win}
29. Bh7+ {My line. I thought that} (29. Qxd4 gxh6 30. Qf4 Rd8 {was just fine
for Black. Komodo proposes} 31. Rxd8+ Qxd8 32. h4 Kg7 33. g4 {with an
initiative, but Black has reasonable defensive chances}) 29... Kf8 30. Qxd4 (
30. Ng6+ fxg6 31. Qxd4 {lovely idea but} Qd5 {ruins everything} (31... Qg5 32.
Qd6+)) 30... gxh6 31. Nd7+ Nxd7 32. Qh8+ Ke7 33. Qxc8 Bd5 {was my main line.
It's a bit better for White but tricky to convert as Black is well-centralised
and active}) (28... gxh6 29. Qxf6 Qc7 30. Re1 {followed by Re3-g3 wins}) 29.
Rh3 {A very sensible idea, preparing Qh4 but as Coles correctly points out,
Black can now confuse matters enormously.} (29. Rh8+ Kxh8 30. Nxf7+ Kg8 31.
Nxd8 {I thought this was winning but I'd missed a very nasty retreat...} Rc8 {
The knight is trapped!} (31... Rg5 32. Qb8 Rxg2+ 33. Kf1 Qd5 34. Nxe6+ Kf7 35.
Qf8+ Kxe6 36. Re1+ {was the line I was counting on}) 32. Nxe6 Qd5) (29. Rh5 {
A goregeous move suggested by Komodo...who else? Black's counterplay after ...
Rc5 is all based on the blow ...Rxe5. The text deals with this and prepares
both Rg5 increasing the pressure on Black's kingside and the simple h3
removing any back-rank threats (which means the Black rook is no longer safe
on c5).}) 29... Rcd5 {Rubinstein misses his chance!} (29... Be4 {Coles, was
definitely best} 30. Qh4 (30. Bxe4 Rxe5 {as the bishop on e4 has been
deflected from the defence of the rook on d1}) 30... Kf8 {I was wondering how
to hold White's position together but Komodo points out} 31. Qxe4 Nxe4 32. Rh8+
Ke7 33. Rxd8 Rxe5 34. dxe5 Qxe5 35. R8d7+ Kf6 36. Bxe4 Qxe4 37. Rc1 Qc6 38. Rd4
c3 39. Rd3 Qxa4 40. Rdxc3 {when Black should not be able to hold his a-pawn
after Rb1, Rcc1, Ra1 and then doubling on the a-file}) 30. Kf1 (30. Qh4 Kf8 31.
Qh8+ Ke7 32. Ng6+ Kd6 33. Qxg7 {was even stronger. I do like Atkins' move
though. It covers the e1 square and thus neutralises any back-rank threats.
Meanwhile, White's threats are still hanging over Black's (king) position.})
30... Qb6 31. Rg3 {A little timid} (31. Qh4 {was the way to go} Kf8 32. Qh8+
Ke7 33. Ng6+ (33. Qxg7 Rxe5 34. dxe5 (34. Rh6 Rf5) 34... Rxd1+ 35. Bxd1 Ne4 36.
Re3 Qb2 37. Re2 Qa1 38. Re1 {was good enough for White to escape I thought but
I'd missed} Qd4 {after which White is in trouble!}) 33... Kd6 34. Qxg7 fxg6 35.
Qxf6 {is very promising for White}) 31... Rxd4 {Rubinstein collapses!} (31...
Kf8 {was the only defence} 32. Rxg7 Kxg7 33. Qg5+ Kf8 34. Qxf6 Rxe5 (34... Qc7
35. Qh6+ Ke7 36. Nxf7 {wins} (36. Qg7 Rxe5 {is better for White but not over
yet})) 35. Qxe5 {is a clear pawn up for White}) 32. Rxd4 Qxd4 33. Qxf6 Qa1+ 34.
Ke2 Bf3+ 35. gxf3 {A sensational win!} 1-0
[Event "British CF-08 Championship playoff"]
[Site "Bradford"]
[Date "1912.01.01"]
[Round "1"]
[White "Atkins, HE."]
[Black "Yates, FD."]
[Result "1-0"]
[ECO "D05"]
[Annotator "Sadler,Matthew"]
[PlyCount "93"]
[EventDate "1912.01.01"]
[EventType "match"]
[EventRounds "3"]
[EventCountry "GBR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
1. d4 d5 2. e3 Nf6 3. Nf3 e6 4. Bd3 Be7 5. O-O Nbd7 6. b3 O-O 7. Bb2 c5 8. Nbd2
b6 9. Ne5 Bb7 10. f4 Ne4 11. c4 Nxd2 12. Qxd2 dxc4 13. bxc4 cxd4 14. exd4 Nf6 {
Yates has headed with little subtlety for the defensive side of a Hanging Pawn
structure. A less obvious approach might have yielded an extra tempo or 2. For
example, instead of capturing on d2 immediately, he might have waited until
White forced him to do so (for example via Qc2). After ...Nxd2, Qxd2 White's
queen has ended up on d2 in 2 moves instead of just one. It's the same point
as the one I made in the earlier article http://matthewsadler.me.uk/
the-middlegame/hanging-out-with-efim/ : As a general rule, unless you have a
concrete goal in mind, you should maintain tension for as long as possible. If
an exchange is not yet forced, then it is normally correct to delay it. Such
tension exerts a restraining effect on the opponent’s plans and
possibilities; once the tension is resolved, you often notice that the
opponent is closer to implementing his plans. I'm also not impressed with the
move 14...Nf6. Left unchallenged, White's pawns on c4 and d4 are a formidable
barrier to Black's pieces: neither his rooks can make any impact on the
half-open c- and d-files while White is able to transfer his rook(s) to the
kingside along the 3rd rank behind the cover of his hanging pawns. Black has
to hit the pawns as quickly and as hard as possible, and the pawn on c4 is
normally the easiest to start with.} (14... Rc8 15. Rae1 Ba6 {Looks like the
right way to start. After} 16. Qe2 {then} Bb4 {Desperately trying to disrupt
White's structure before he gets settled} (16... Qc7 {The less desperate
option is well worth seeing too!} 17. Nxd7 (17. d5 Nc5 {Komodo} (17... exd5 18.
Nxd7) (17... Bc5+ 18. Kh1 exd5 19. Nxd7 {--> 17.Nxd7} (19. Qh5 Nf6 20. Qf5 {
looked exceedingly strong as well!} Rfe8 (20... dxc4 21. Ng4 cxd3 22. Nxf6+
gxf6 23. Qxf6) (20... Bxc4 21. Nxc4 dxc4 22. Bxf6) 21. Ng4 Ne4 22. Nh6+ {Komodo
} (22. Bxe4 Rxe4 23. Nf6+ gxf6 24. Qxf6 Kf8 25. cxd5 {was my line}) 22... Kf8
23. Bxg7+ Kxg7 24. Bxe4 Rxe4 25. Qg5+ Kf8 26. Rxe4 dxe4 27. Qg8+ Ke7 28. Qxf7+
Kd6 29. Nf5+ Kc6 30. Qd5#)) (17... Nxe5 18. Bxe5 Qc5+ 19. Kh1 Bxc4 (19... exd5
20. Bxh7+ Kxh7 21. Qh5+ Kg8 22. Bxg7 Kxg7 23. Qg4+ Kh7 24. Re5 Rc6 25. Rh5+ Rh6
26. Rxh6+ Kxh6 27. Rf3 Qa3 28. Qh3+) (19... f6 20. Bb2 Bxc4 21. Bxc4 Qxc4 22.
Qxe6+ Rf7 23. Rc1) 20. Bxh7+ Kxh7 21. Qh5+ Kg8 22. Bxg7 Kxg7 23. Qg4+ Kh8 24.
Rf3) 18. dxe6 f6 {Hmm...risky!}) 17... Qxd7 18. d5 {is worth seeing} Bc5+ 19.
Kh1 exd5 20. Bxh7+ Kxh7 21. Qh5+ Kg8 22. Bxg7 {The typical double-bishop
sacrifice, here with a couple of unusual tactical twists} Kxg7 23. f5 {
Threatens f6+ and blocks the Black queen's access to the c8-h3 diagonal. Why
is that useful?} (23. Qg5+ Kh7 24. Rf3 {The standard rook lift is not enough
in this position:} Rc6 25. Rh3+ (25. f5 Rh6 26. Rg3 f6) 25... Qxh3 {Ouch!})
23... f6 (23... Rc6 24. f6+ Rxf6 25. Rxf6 Kxf6 26. Qh6+ Kf5 27. g4+ Kxg4 {
and now I needed Komodo to cut through the confusion with} 28. Rf1 {and mate
in 6}) 24. Rf3 Kg8 25. Rg3+ Qg7 26. Rxg7+ Kxg7 27. Qg6+ Kh8 28. Re6 {I wasn't
sure how wonderful this would be for White (although easy to play in a
practical game as White always has the draw in hand). Komodo thinks a clear
edge (+1.43) mainly due to the invulnerability of the c-pawn (which I hadn't
spotted)} dxc4 (28... Bxc4 29. Rxf6 Rxf6 30. Qxf6+ Kg8 31. Qe6+ {and the rook
on c8 is loose}) 29. Re4 {with mate on h4}) 17. Rd1 Qc7 {When Black's pressure
against c4 forces White to take action} 18. Nxd7 Qxd7 19. f5 {is better for
White but Black has at least removed White's possibility of an easy, measured
build-up as in the game.}) 15. Rae1 Qc7 16. Re3 Rfd8 17. Rfe1 Bd6 18. Rh3 Rac8
19. Qe2 {It really is too easy for White! 19.Qf2 threatening Qh4 was also very
strong} g6 20. Rg3 Bf8 21. f5 (21. d5 {was also very powerful. The text is
more complicated but very strong too.}) 21... Bg7 (21... exf5 22. Bxf5 Rb8 23.
Nxf7 {is the line pointed out by Coles when} Kxf7 24. d5 {leads to carnage})
22. fxe6 fxe6 23. Nxg6 hxg6 24. Qxe6+ Qf7 25. Qxf7+ Kxf7 26. Bxg6+ (26. d5 {
building up the pressure was even stronger}) 26... Kg8 27. Re7 Rd7 28. Rxd7
Nxd7 29. Bf5 Rc7 {Loses} (29... Kf7 30. Bxd7 Rxc4 {still gave some chances to
resist}) 30. d5 Nc5 31. d6 Rf7 32. Rxg7+ Rxg7 33. Bxg7 Kxg7 34. d7 Nxd7 35.
Bxd7 Kf6 36. h4 Ke5 37. Be8 Be4 38. g4 Bd3 39. Bf7 a5 40. g5 Bb1 41. a3 Kf5 42.
Kf2 a4 43. Ke3 Bc2 44. Kd4 Bb3 45. Kc3 Bd1 46. Kb4 Ke5 47. h5 1-0
[Event "Match/Nation NED-ENG (4,5-5,5) (6-4)"]
[Site "Amsterdam"]
[Date "1937.05.16"]
[Round "1.5"]
[White "Atkins, Henry Ernest"]
[Black "Prins, Lodewijk"]
[Result "1-0"]
[ECO "D85"]
[Annotator "Sadler,Matthew"]
[PlyCount "51"]
[EventDate "1937.05.16"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 Bg7 8.
Be3 O-O 9. Qd2 Bg4 10. Rc1 cxd4 11. cxd4 Nc6 12. d5 Na5 13. Be2 e6 {Atkins has
chosen a typically common-sense and natural method of development against the
Grunfeld: protect d4 and c3 and get the queen's rook off the a1 diagonal as
quickly as possible in order to achieve d5. Prins now starts up a very fraught
tactical operation!} 14. Bc5 Re8 15. Bb5 {A little too much!} (15. Bb4 b6 16.
d6 {is very powerful for White: d7 is a threat and the knight on a5 is
completely offside}) 15... exd5 16. Bxe8 Qxe8 {Black's position kind of hangs
together as Qxa5 can be met by ...b6} 17. O-O dxe4 18. Qxa5 {A mistake} (18.
Bd4 {is Komodo's logical improvement and looks very strong. The idea is after}
exf3 19. Bxg7 Kxg7 {White can leave Black with the offside knight on a5 and
pick up the bishop on g4 with} 20. Qd4+ Kg8 21. Qxg4 fxg2 22. Rfe1 {Black is
going to have to do his best to keep White's rooks off the 7th rank!}) 18...
exf3 {Not the most accurate} (18... b6 {was much better. Compared to the game,
19.Qb4 is impossible due to 19...bxc5 so either White's queen has to retreat
to a more passive square, or White has to give Black 2 unchallenged bishops
with} 19. Bxb6 axb6 20. Qg5 Be6 {which is bound to be fine for Black. We're
now coming up to an interesting moment}) 19. Rfe1 Be6 {After a tactical flurry,
the dust has settled down a bit. At first sight, Black is doing excellently: 2
bishops, the threat of ...b6 winning a piece, and ...fxg2 coming opening up
White's kingside structure while Black's king remains safe. It's quite
astounding that White should be able to finish off the game with a mating
attack within 6 moves! I really like the manner in which Atkins managed to
sweep his pieces from the queenside to the kingside, once again - just as in
the Rubinstein game - underpinned by the coordination of a queen and bishop
(the queen and light-squared bishop in that game, the queen and dark-squared
bishop in ths game)} 20. Qb4 {Just a one-move attack against the b7 pawn at
first sight, but there is a much deeper idea.} b6 21. Bd4 {Excellent strategy:
the best way to neutralise a pair of bishops is to exchange one. In this case,
once Black's dark-squared bishop is exchanged, Black's own kingside
dark-squares start to look sensitive too (White will do his best to get his
queen to f6 after the exchange of bishops) so Black's it's understandable that
Black wants to avoid the exchange.} Bf8 {The engines start off reasonably
positive about this move, but the more of Atkins' moves they see, the less
happy they are. Watch how Atkins swivels the White queen around the bishop on
d4 to bring it into attacking play.} 22. Qc3 fxg2 23. Qf3 {A great square for
the queen, eyeing both f6 and the rook on a8 (which restricts the movement of
the Black queen on e8). White also has the insiduous threat of Bb2/a1 followed
by Qc3 finding another path to the a1-h8 diagonal. Black is seriously
stretched as he will find it hard to cover 2 squares as far apart as c3 and f6.
} Qd8 (23... Bg7 {Trying to repair his mistake on move 21 fails to} 24. Bxg7
Kxg7 25. Rxe6 fxe6 26. Rc7+ Kh6 (26... Kg8 27. Qf6 Qf8 28. Qxe6+ Kh8 29. Qd7)
27. h4 {my line which wins, but Komodo spots forced mate!} (27. Qh3+ Kg5 28.
f4+ Kxf4 29. Rc4+ Ke5 30. Qc3+ Kd6 31. Qd4+ Ke7 32. Rc7+ Kf8 33. Qg7#)) (23...
Be7 {covers f6, but just gives White an easy way to increase his advantage} 24.
Rc7 Rc8 (24... Rd8 25. Bb2 Rd6 26. Qc3 f6 27. Ba3) 25. Qf4) 24. Rcd1 {A very
good move. First I thought that 24.Red1 might be stronger, then I thought I'd
refuted it with a computer-like defence... but then the engines showed I'm not
a machine! Both seem to be strong!} (24. Bb2 Bg7 {Neutralises White's
initiative: the queen on d8 now covers the entry point on c7 for White's rook})
(24. Red1 Bd5 (24... Rc8 25. Rxc8 Bxc8 26. Bb2 {was my idea: Black cannot
cover c3 and f6, so 24...Rc8 is impossible.} Qe7 27. Qc3) 25. Qf4 Bxa2 {
This was my miracle defence. The idea is to get the bishop away from e6 to a
safe spot on the a2-g8 diagonal so that Black can meet Qe5 with ...f6.
Unfortunately, a2 is not a protected outpost!} (25... Qe7 26. Ba1 Bxa2 (26...
Rd8 27. Rd3 Bxa2 28. Rxd8 Qxd8 29. Qf6 {The exchange of queens on f6 with a
pair of rooks off is very dangerous!} Qxf6 30. Bxf6 Be6 31. Rd1) 27. Rd2 {
Komodo's idea again}) 26. Rd2 {Bringing the bishop back into open play!} (26.
Bb2 Qe7 27. Rd7 Qe6 28. Qd4 f6 {was the type of line I was looking at when
Black still has chances due to White's weakened king}) 26... Bb3 (26... Be6 27.
Qe5) (26... Bd5 27. Bb2) 27. Bb2 Qe7 28. Qf3 {Ouch! Forks the rook on a8 and
the bishop on b3!}) (24. Rc7 Bd5 25. Qf4 Bd6 26. Qh6 Bf8) 24... Bd5 (24... Rc8
25. Qf4 Rc4 26. Qe5 Rxd4 27. Rxd4 Qe7 28. Red1 {was the reason I was keen to
find an alternative to 24.Rcd1. It's much better for White, but feels
confusing for a human! Prins (or Trins as he was called in the first day
reports!) allows a nice finish for the 65-year-old Atkins}) 25. Qf4 Rc8 (25...
Bd6 26. Be5 Be7 27. Bc7 Qd7 28. Qe5 {Picks up the bishop.}) 26. Re8 {A nice
finish, deflecting the queen} (26. Re8 Qxe8 27. Qf6 {demonstrates exquisitely
the power of the bishop and queen combination that Atkins brought to life
starting on move 20!}) 1-0
[Event "4NCL March"]
[Site "?"]
[Date "2017.03.05"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Suarez Real, Alberto"]
[Result "1-0"]
[ECO "E81"]
[Annotator "Sadler,Matthew"]
[PlyCount "105"]
[EventDate "2017.02.20"]
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. f3 a6 7. Qd2 Nbd7 8. Nh3
c5 9. d5 b5 10. cxb5 Qa5 11. Nf2 axb5 12. Nxb5 Nb6 13. Nd1 Bd7 14. Ndc3 Na4 15.
Nxa4 Qxa4 16. Nc3 Qb4 17. Rc1 e6 18. dxe6 Bxe6 19. Be2 Bxa2 20. O-O Be6 21. Kh1
{The opening phase had not delivered any great success apart from a
substantial advantage in time. My opponent was down to his last 5 minutes
(plus increments) whereas I still had about half an hour left. My last move
set a trap that I'd seen a few moves earlier (when I took the decision to play
18.dxe6). I wanted to play 21.Kh1 instantly but both here and on my next move
I was assailed by doubts. I started to wonder whether my trap was simply a
nudge for Black to make a brilliant queen sacrifice! In the end I decided to
take the plunge!} Rfb8 22. Qxd6 {This was the trap. The natural 21...Rfb8 (or
21...Rab8) lining up on the b2 pawn gives White an unexpected tactical chance..
.} Ne8 23. Qg3 Qxb2 24. Rb1 {This is it! The rook on b8 is suddenly in the
firing line. As 24...Qxc3 simply loses the exchange to 25.Rxb8, Black must
sacrifice his queen... but that's not necessarily a bad thing!} Bxc3 25. Rxb2
Rxb2 {When I first saw this idea (while I was pondering over 21.Kh1) I
suddenly got very worried about White's position. The problem is the severely
constricted position of the bishop on e2: 26.Bd3 gets hit by 26...c4 while 26.
Bd1 Ra1 (or 26...Bc4) looks very uncomfortable for White. It was only when I
spotted my next move that I felt confident enough to punt.} 26. f4 {An evil
little move after which White's position gains a lot of freedom. The threat of
f5 (disrupting Black's light-squared bishop on e6 while putting pressure on
Black's kingside) is in the air while White also gains the h3-c8 diagonal as
an escape route for his light-squared bishop. However as always when
positional problems are parried with with tactical solutions, the whole
position accelerates. The commitments of both sides increase and it isn't
clear which will weigh heaviest.} Rxe2 27. Qxc3 Raa2 {From afar, I'd intended
to simply protect the g2 pawn with 28.Qf3 and then push with f4-f5. However,
once I got to the position, I became dissatisfied with moves like 28...Bc4
(threatening ...Rxg2) with perhaps ...Nd6 as a follow-up. Although 26.f4 was
an ingenious resource, the downside is that White's central and kingside
light-squares are severely loosened, especially after Black has nabbed White's
light-squared bishop. After a move like 27...Raa2, you don't need too much
imagination to envisage a situation in which Black gets his bishop to the
a8-h1 diagonal and a knight to e4 and proceeds to destroy White's king's
position! The only reason this might not happen is the weakness of Black's own
kingside dark-squares, particularly marked once Black offered up his
dark-squared bishop for White's light-squared bishop. I thus felt that the
best way to curb Black's activity against my kingside was a show of force on
Black's kingside dark-squares. And for that, I needed all the big pieces I
could get: in particular my queen and dark-squared bishop. That led me to
defend the g2 pawn with the meek-looking} 28. Rg1 Rxe4 {Clearing the a8-h1
diagonal for the light-squared bishop.} (28... Nd6 29. Bh6 {is a very
important point. Note also the typical geometry in the following forced win
(we'll see this a number of times in the ensuing variations)} Ne8 30. Qxc5 {
Threatening mate on f8} Ng7 31. Qd4 Ne8 {Only move to stop mate on the back
rank} 32. Qb4 {With gain of tempo, White has shuffled his queen to the optimal
spot} Ng7 33. Qb8+ {wins}) 29. Qxc5 {A natural move played quickly, but not
the best. Strangely enough, it felt wrong somehow but I wanted to keep the
(time) pressure on my opponent so I didn't question myself too much. I hadn't
yet understood the exact nature of White's advantage in the position.} (29. Bh6
{was the best idea, cementing White's 2 advantages in the position - the weak
kingside dark-squares and the weakness of Black's back rank - before
addressing the material situation. Bh6 stops the Black knight from leaving e8
and also prevents Black from giving his king air with ...h5 (freeing h7 as an
escape route).} Ra8 (29... c4 30. Qb4 Ng7 31. Qb8+) (29... Rc4 30. Qe5 {
The c-pawn actually hinders Black's coordination by preventing the rook on the
c-file from returning to c8} Ra8 31. Re1 {preparing first h3 (to cover the g4
square) and then f5}) 30. h3 {The most accurate move order} (30. Qxc5 Ng7 31.
Bxg7 {is what Komodo wants... Can't bring myself to do that!}) (30. Rd1 Bg4 {
is a bit irritating} 31. Qxc5 Ng7) 30... Rc8 (30... c4 31. Rd1 {...c4 just
gives White an extra avenue of invasion along the dark-squares: the a3-f8
diagonal.}) 31. Rd1 {I don't really see what Black can do: White can simply
strengthen his position with Rd2, Kh2, and then turn to action with g4 & f5.})
29... Rc4 {A natural way of dealing with White's threat of Bh6, but again not
the best. Black really needed more time to work out a proper plan.} (29... h5 {
Looking at what happens in the game, you start to understand that White's
potential for an advantage rests on 2 factors: 1. The (permanent) weakness of
Black's kingside dark-squares 2. The (temporary) weakness of Black's back
rank. It isn't in Black's power to change the first factor, but he can
address the second factor by playing ...h5, giving his king an escape square
on h7. This has the additional point of allowing Black to harry a White bishop
on ...h6 with ...Kh7. ...h5 is best played at this exact moment, with the
centralised rook on e4 holding Black's position together. For example, 30.Qc6
is met by 30...Bf5 protecting the rook on e4 and the knight on e8
simultaneously. The additional room for Black's king also robs the break f5 -
which can often be played to break up Black's kingside - of some of its power.
White's best chance to still make some use of Black's weakened kingside dark
squares is to reroute his bishop to the a1-h8 diagonal. This is often achieved
most effectively by a pawn sacrifce with f4-f5 followed by Be3-d4.}) (29...
Ree2 30. Bh6 Ng7 31. Qd4 Ne8 32. Qb4 Ng7 33. Qb8+ {wins just as we saw earlier}
) (29... Ng7 {White must constantly be on the watch for Black's attempts to
activate his knight, but here Black's knight can't escape yet.} 30. Bf6 {
Introducing ideas of retreating along the h8-a1 diagonal followed by the
transfer of the queen to the same diagonal.} Nh5 (30... Rxf4 31. Qe5) (30...
Nf5 31. Qc6) 31. Be5 Nxf4 32. Qd6 Rxe5 33. Qb8+ {is very nasty!}) 30. Qe5 {
Centralising the queen. I will confess that I was greatly influenced by the
Atkins games I'd been studying before this 4NCL weekend. I too wanted to
coordinate my queen and bishop to the maximum degree!} (30. Qe7 Rc8 {I was
afraid that the knight on e8 would escape too easily to g7.}) 30... Rcc2 (30...
Ng7 {Black's typical attempt to get his knight active meets a very neat
refutation} 31. Bf6 Nf5 (31... Nh5 {Allows a stunning riposte. Who would have
thought the rook on g1 was an attacking piece?} 32. f5 gxf5 (32... Nxf6 33.
fxe6 Ng4 34. exf7+ Kxf7 35. Rf1+ Nf2+ 36. Rxf2+ Rxf2 37. Qd5+ Kg7 38. Qxc4) 33.
g4 Nxf6 34. gxf5+ Ng4 35. fxe6 {No tricks for Black amazingly. Really proud I
spotted this idea!}) (31... Ne8 32. f5 gxf5 (32... Bd7 33. Qd5 Rac2 34. Bb2 {
Komodo} Rc7 35. Qd4 f6 36. fxg6 hxg6 37. Qb4 {Black is really loose}) 33. g4 {
Again!} f4 34. Qg5+ Kf8 35. Be7#) 32. Rd1 Rc8 33. g4 {This feels airy, but
there is no way for Black to exploit this. White is just winning}) (30... h5 {
A move later than required, but still worth trying} 31. h3 {Very sensible,
preparing f5} (31. f5 gxf5 32. h3 {is pretty tempting. The only thing I didn't
like was that Black can place his rook back on the wonderful square e4 which
helps keep his position together} Re4 33. Qg3 Kh7) (31. Re1 Rcc2 {forces White
to take a step back according to Komodo. I couldn't see why though!} (31... Ra8
32. f5 Bxf5 33. Bc1 Rd8 34. Bb2 (34. Qe7 Rcd4 35. Bb2 Rd1 {should enable Black
to hold I thought}) 34... f6 35. Qe7 (35. Qb5 Re4) 35... Rcc8 36. Ba3 Rd7 37.
Qf8+ Kh7 38. h3 {wins} (38. g4 {was my first thought but it fails surprisingly
to} Bxg4 39. Rxe8 Rd1+ 40. Kg2 Rc2+ 41. Kg3 Rd3+ 42. Kf4 Rc4+ 43. Re4 Rf3#))
32. f5 gxf5 (32... Rxg2 33. fxe6 f6 34. Qb8 Rxh2+ 35. Qxh2 Rxh2+ 36. Kxh2 fxg5
37. Rf1 {wins}) 33. Qb8 Kh7 {Komodo} (33... Rc8 34. Qxc8 Bxc8 35. Rxe8+ Kg7 36.
Rxc8 {is the same trick as in the game}) (33... Bd7 34. Rxe8+ Bxe8 35. Qxe8+
Kg7 36. Qe5+ Kg8 37. h4 Rxg2 38. Bf6 {wins}) 34. Qxe8 Re2 {Komodo... wow! That
just hadn't remotely occurred to me!} (34... Rxg2 35. Rxe6) 35. Bh4 (35. Rg1
Rxg2 {wins!}) (35. Rd1 Rxg2 36. Bf4 Rgf2 {is fine for Black} 37. Bg3 Bd5+)
35... Rxe1+ 36. Bxe1 Ra1 37. h3 Rxe1+ 38. Kh2 Re4 {is OK for Black}) 31... Rd2
{I'd spotted this. It felt a little weird and risky to put a rook on a
dark-square! From d2 however, the rook prepares ...Rd5 driving the queen away
from e5 while also supporting ...Bd5 & ...Nd6. If Black isn't able to gang up
on g2 square, then chasing away the White queen from its dominating post and
trying to activate the knight is a good substitute plan.} (31... Rcc2 32. f5
gxf5 33. Be3 {I'd spotted this idea rerouting the dark-squared bishop to tha
a1-h8 diagonal and it's very strong}) (31... Ng7 32. Bf6 Nf5 (32... Ne8 33. f5
gxf5 34. Qb8 (34. Be7 {was my idea which also looks strong}) 34... Rc8 35. Qg3+
Kf8 36. Qg5 Nxf6 37. Qxf6 {with a clear advantage according to Komodo}) 33. Rb1
Rc8 34. Rb8 Rac2 35. Rxc8+ Rxc8 36. g4 Rc1+ 37. Kg2 (37. Kh2 hxg4 38. hxg4 Nh6)
37... Rc2+ (37... Bd5+ 38. Kf2 (38. Qxd5 Ne3+) 38... Rc2+ 39. Ke1) (37... hxg4
38. hxg4 Nh6 39. Qd4 {Komodo} (39. Bh8 Bd5+ 40. Qxd5 Kxh8 41. g5 Nf5 42. Qxf7 {
offered White good winning chances I thought}) 39... Rc8 40. Bh8) 38. Kf3 hxg4+
39. hxg4 Nh6 40. Bh8 Bxg4+ 41. Kg3) (31... Rac2 {Looking for ...Rc5 driving
away the queen from e5} 32. Be7 (32. f5 Rc5 33. Qb8 (33. Qe4 R2c4) 33... Rc8)
32... Rd2 33. Rb1 (33. Qg5 {with the dual threat of f5 and Qh6 looked very
attractive to me, but Komodo finds a cool defence} Bd5 (33... Kh7 34. f5 Rd5
35. fxe6 Rxg5 36. exf7) 34. Qh6 Rc3 {Threatening ...Rxh3+ with mate} 35. Kh2
Rcc2 {By forcing the king onto the second rank, Black ensures he captures on
g2 with check!} 36. Qf8+ Kh7 37. Qxe8 Rxg2+ 38. Rxg2 Rxg2+ 39. Kh1 Rg3+ 40. Kh2
Rg2+ {draw}) 33... Rd5 (33... Bd5 34. Bb4) 34. Qe1 {with Ba3-b2 to follow} Rxf4
35. Rb8) 32. Rb1 (32. Re1 Rc8 (32... Rd5 33. Qb8 Rc8 34. Qxc8 Bxc8 35. Rxe8+ {
The same trick as in the game!})) (32. f5 Rd5 33. Qb8 (33. Qe2 Rxf5) 33... Rc8)
32... Rd5 33. Qe1 Rc8 34. Kh2 Nd6 35. Bf6 {The struggle goes on but White is
definitely on top}) 31. Bh6 (31. f5 {I thought Black had prevented this, but
White has additional resources I hadn't spotted in the game} Re2 32. Be3 {
I'd missed this but after} Bd7 {Black is not done yet!} (32... gxf5 33. Qg3+
Kh8 34. Bd4+ f6 35. Qg5) (32... Ra3 33. fxe6 Raxe3 34. exf7+ Kxf7 35. Rf1+ Kg8
36. Qf4) 33. Qe7 Bc6 {looks totally scary but...} 34. fxg6 hxg6 35. Rf1 {Komodo
} Bxg2+ 36. Kg1 Bxf1 37. Qxe8+ Kg7 38. Qe5+ Kg8 (38... Kh7 39. Qe7 Rxe3 40.
Qxf7+ {Komodo seems to feel he is picking up a rook and bishop almost by force!
} Kh6 41. Qf4+ Kh7 42. Qxe3 Be2 43. Qe7+ Kh6 44. Qf8+ Kg5 45. Qd8+ Kh6 46. Qh8+
Kg5 47. Qe5+ Kh6 48. h4 Kh7 49. Qe7+ Kh6 50. Qf6 Ra7 51. Qe5 {when the dual
threat of Qe3+ and Qxe2 wins a piece} Rf7 52. Qxe2) 39. Qb8+ Kg7 40. Bd4+ f6
41. Qd6 {Pretty impossible for a human to evaluate correctly! I'm OK with my
choice which pins Black's king to the back rank.}) 31... Rc8 32. Re1 Rac2 33.
Kg1 (33. f5 R2c5) (33. h3 {was stronger according to Komodo. I couldn't decide
which way to give my king some room. In the end I decided to put my king on a
dark-square away from Black's light-squared bishop...}) 33... R2c5 34. Qa1 Rh5
35. Bg5 {Played with a heavy heart. Unfortunately I failed my genius test here!
} (35. f5 {A stunning idea from Komodo} Rxf5 {It took me a while to understand
Komodo's idea. All of a sudden, the geometrical motifs we saw earlier are all
in play!} (35... gxf5 36. Bf4 {The rook on h5 is now offside} Rh4 37. g3 Rg4
38. Qa6 Rd8 39. Qb6 Ra8 40. Qb7 Rd8 41. Qe7 Ra8 42. Rd1 {is appalling for Black
}) (35... Bxf5 36. Rxe8+) 36. Qa3 {Threatening Qf8+} Ng7 37. Qb2 Ne8 (37... Nh5
38. g4) 38. Qb7 {Threatening Rxe6} Nd6 (38... Rfc5 39. Rxe6 fxe6 40. Qe7 Rc1+
41. Kf2 R1c2+ 42. Kg3 R2c3+ 43. Kh4 R3c4+ 44. g4) (38... Rd8 39. Qe7) 39. Qe7 {
The threat of Rxe6 cannot be stopped! Amazing!!}) 35... h6 36. Be7 Rf5 37. Qd4
{Black has ejected the White bishop from h6 but his pieces are
awkwardly-placed and the dark-squared bishop is already on its way to the
a1-h8 diagonal} Rc4 38. Qd8 Rc8 39. Qd2 Rc4 40. Ba3 {Played with seconds to
spare. It fits White's plan of transferring the bishop to the a1-h8 long
diagonal, and it also sets a vernomous trap!} Rfxf4 {Here Alberto gave me a
heart attack by claiming a win on time as my flag fell, but thankfully he'd
missed a move out on his scoresheet! His move falls right into my trap!} 41.
Qd8 Rc8 42. Qxc8 {Neatly winning 2 pieces on the back rank!} Bxc8 43. Rxe8+ Kh7
44. Rxc8 g5 45. Bb2 {Black's challenge is to get some stability in his
kingside structure without allowing the exchange of rooks. During the game I
thought that Black needed to play 45...Rb4 followed by ...Rb6 to stand any
chance of survival and then try to hold his structure with ...f6 and ...Kg6.
In the game, White achieves the exchange of rooks without any problems, and
remember, White has the right-coloured bishop for his rook's pawn!} h5 46. Rc5
f6 47. Rc2 {The Black rook cannot leave the f-file without leaving f6 hanging..
. But that means that the exchange of rooks is unavoidable.} h4 48. Rf2 Rxf2
49. Kxf2 Kg6 50. Kf3 f5 51. h3 Kh5 52. Bf6 Kg6 53. Bd8 (53. Bd8 Kh5 54. Ke3 Kg6
55. Kd4 {followed by Ke5 wins}) 1-0
[Event "North London Junior U-8"]
[Site "?"]
[Date "1982.04.17"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Sloman, H."]
[Result "1-0"]
[ECO "D00"]
[Annotator "Sadler,Matthew"]
[PlyCount "67"]
[SourceVersionDate "2017.03.26"]
{My first tournament game on 17-4-1982 (aged 7 years, 11 months and 2 days!)
on the last board (Board 90)} 1. c3 d5 2. d4 Nc6 3. Bf4 {Amazing that the
first opening you think up yourself without knowing any theory is the London
System!} Bf5 4. h3 Nf6 5. Nf3 e6 6. e3 Bd6 7. Bxd6 cxd6 8. Bb5 O-O 9. O-O Rc8
10. Ba4 e5 11. dxe5 dxe5 12. Nfd2 {Both missing the win of a pawn with Bxc6}
Bd3 13. Re1 Bxb1 14. Rxb1 e4 15. f3 exf3 16. Qxf3 Re8 17. Red1 h6 18. Nc4 {
I'm sure I was very proud of this move, exploiting the pin of the pawn on d5!}
Re4 19. Bxc6 Rxc6 20. Nd2 Rce6 {Up til here, Black has played rather better
than me, but this just gives away an exchange} 21. Nxe4 Nxe4 22. c4 Ng5 23.
Qxd5 Qxd5 24. cxd5 Rxe3 25. d6 Re8 26. d7 Rd8 27. Rbc1 Ne6 28. Rc8 Rf8 29.
Rxf8+ Kxf8 30. d8=Q+ Nxd8 31. Rxd8+ Ke7 32. Ra8 f5 33. Rxa7 g5 34. Rxb7+ {
and I'd won my first ever tournament game. The next game however was the first
of many tough lessons in life. I lost in 9 moves to Quentin(?) Rist - one of
the best English juniors at the time - on the Black side of a Sicilian. And
the first of many tears were shed!} 1-0
[Event "Charlton Minor"]
[Site "?"]
[Date "1982.07.16"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Ramsay"]
[Result "1-0"]
[ECO "D01"]
[Annotator "Sadler,Matthew"]
[PlyCount "13"]
[SourceVersionDate "2017.03.26"]
{My first adult tournament started inauspiciously with a little tactical
lesson...} 1. d4 Nf6 2. Nc3 d5 3. Bg5 {For some reason, I'd graduated from the
London System to the Veresov in the 3 months since my last tournament!} Bf5 4.
Nf3 Ne4 5. Qd3 Ng3 {Oops. Bizarrely enough, the power of modern engines
indicate that 5.Qd3 was in fact a very subtle trap!} 6. hxg3 (6. Qb5+ Bd7 7.
Qxd5 Nxh1 8. Ne5 e6 9. Qxb7 {is winning for White. Aged 8, I was less creative!
}) 6... Bxd3 7. cxd3 {However, I proceeded to beat my opponent rated BCF 107
(ELO 1500), picking up pawns on a regular basis until the moment he blundered
his queen.} 1-0
[Event "BCF U-12"]
[Site "?"]
[Date "1983.03.19"]
[Round "?"]
[White "Bakshi, Hasan"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "D32"]
[Annotator "Sadler,Matthew"]
[PlyCount "78"]
[SourceVersionDate "2017.03.26"]
{The next game was played in the London U-12 and was my first published game!
I was aged 8 of the game, and I was incredibly proud of the game, as it was
played against the top seed, rated BCF 144 (about 1900 ELO)} 1. d4 d5 2. c4 e6
3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Bd7 8. Nf3 Nf6 9. Qd1
Bc5 10. Bg5 h6 (10... Qb6 {would recover the gambit pawn immediately with the
double attack on b2 and f2.}) 11. Bh4 g5 12. Bg3 Bb4 {I had a weakness for
moving the bishop to b4 in this line! Not sure why...} 13. Qc2 Nd5 14. e4 Qe7
15. Be2 Nxc3 16. bxc3 Qc5 17. Rc1 Ba5 18. O-O O-O-O 19. Nd4 h5 20. Nb3 Qe7 {
It's not too impressive so far! Simply} 21. f3 (21. Nxa5 Nxa5 22. Rcd1 {
would secure a spot for the dark -squared bishop. White starts to panic
however.}) 21... h4 22. Bf2 Bc7 23. g3 hxg3 24. Bxg3 Bxg3 25. hxg3 Rh3 26. Kf2
Qe5 27. Rg1 f5 28. Rg2 Rf8 29. Ke1 Rxg3 30. Rxg3 Qxg3+ 31. Kd2 Rd8 32. Nd4 Be6
33. exf5 Qf4+ 34. Ke1 Bd5 {I'm not exactly finishing accurately, but the moves
are logical: Black is opening lines and inching his pieces closer to White's
exposed king} 35. Qd2 Qg3+ 36. Kd1 Kb8 {Yikes!} 37. Nxc6+ bxc6 38. Qb2+ (38. c4
Qg1+ 39. Kc2 Be4+ 40. Kc3 Qb6 41. Qb2 {was equal according to Komodo}) 38...
Kc7 {Missing} (38... Bb3#) 39. Kc2 Qf2 0-1
[Event "BCF U-12"]
[Site "?"]
[Date "1983.03.20"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "White, Russell"]
[Result "0-1"]
[ECO "C50"]
[Annotator "Sadler,Matthew"]
[PlyCount "18"]
[SourceVersionDate "2017.03.26"]
{The following game from the same tournament is etched into my memory. After a
promising start of 2/2, I lost 3 in a row including this game in which triumph
and disaster succeeded each other at lightning speed!} 1. e4 e5 2. Nf3 Nc6 3.
d4 exd4 4. c3 dxc3 5. Bc4 Be7 6. Qd5 {Winning! Well not quite, Black has a
most undeserved resource} Nh6 7. Bxh6 Rf8 {A blunder} (7... O-O 8. Bxg7 Kxg7 9.
Nxc3 {is known, with a more pleasant position for White}) 8. Bc1 {Played much
too quickly.} (8. Bxg7 {wins immediately}) 8... Nb4 9. Qd1 c2 {I'd missed this.
To my horror I saw that I wasn't winning a piece: I was simply remaining a
pawn down! My position is still very good of course, but it put me off so much,
I played poorly and lost a long game!} 0-1
[Event "Lloyds Bank U-14"]
[Site "?"]
[Date "1983.09.24"]
[Round "?"]
[White "Demetrios, Agnos"]
[Black "Sadler, Matthew D"]
[Result "1-0"]
[ECO "D32"]
[Annotator "Sadler,Matthew"]
[PlyCount "45"]
[SourceVersionDate "2017.03.26"]
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qa4+ Bd7 6. Qxd4 exd5 7. Qxd5 Nc6
8. Nf3 Nf6 9. Qd1 Bb4 {That move again! 9...Bc5 is better if you're planning
to castle queenside!} 10. e3 Qe7 11. Be2 O-O-O 12. O-O g5 13. Nd4 {I remember
thinking that my kingside attack looked very slow here!} Rdg8 14. a3 Bxc3 15.
bxc3 h5 16. Qb3 Nxd4 17. cxd4 g4 18. Bb2 h4 19. d5 Rh7 20. Qc3+ {Oops.
Demetrios was always on the lookout for these sorts of incidental tactics.} Kb8
21. Qxf6 Qxf6 22. Bxf6 Ka8 23. Rab1 {and I lost quickly} 1-0
[Event "Alekhine Memorial-02"]
[Site "Moscow (Russia)"]
[Date "1971.11.30"]
[Round "6"]
[White "Tal, Mihail"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[ECO "C07"]
[Annotator "Matthew Sadler"]
[PlyCount "37"]
[EventDate "1971.11.24"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "RUS"]
[EventCategory "14"]
[SourceTitle "https://matthewsadler.me."]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{Tal recounts that he very much wanted to surprise Uhlmann in the opening, but
that he wasn't sure how. In the end his choice fell on the the lesser-known 5.
Bb5 in the French Tarrasch.} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. Bb5 {
As Karolyi points out, Uhlmann - a leading expert on the French - had faced
this line the previous year against Parma and chosen 5...Bd6. Tal notes that
"Uhlmann is one of those chess players who does not attempt to be too
sophisticated, and as a rule plays the opening quickly. The fact that he spent
more than 20 minutes over his fifth move showed that the psychological "mine"
(5.Bb5) had worked." On the other hand, the fact that Uhlmann chose such a
risky, concrete continuation (opening the centre against Tal!) and then
repeated it 9 times subsequently (including a follow-up game against Tal in
Tallinn 1977) indicates to me that Uhlmann had probably looked at this line at
home already. From a general point of view, it feels a little odd to repair
the only defect in White's position - the bishop on c1 blocked in by the
knight on d2 - at such an early point in the game. However, Uhlmann's play is
based on the tactical exploitation of White's bishop on b5. That's the thing
about advanced attacking pieces: they exert pressure on the opponent's
position but they also provide nearby targets for the opponent to exploit!}
dxe4 6. Nxe4 Bd7 {[#] Uhlmann's idea, and a very clever one. Black now
threatens ...Nxd4 winning a pawn due to the discovered attack on the bishop on
b5. Tal continues with 1-move development, ensuring Black has no respite by
attacking the Black queen.} 7. Bg5 (7. O-O {was Tal's choice 6 years later.}
Nxd4 (7... cxd4 8. Bg5 Nf6 9. Nxd4 Be7 {was Uhlmann's choice in 1992, although
this looks worse to me than 7...Nxd4.} 10. Bxf6 gxf6 11. Nxc6 bxc6 12. Bc4 Qc7
13. Qh5 Qe5 14. Qxe5 fxe5 15. Rad1 O-O-O 16. f4 ({The obvious} 16. Nd6+ Bxd6
17. Rxd6 Kc7 18. Rd3 {looks like a little edge for White at least.}) 16... exf4
17. Rxf4 f5 18. Nd6+ Bxd6 19. Rxd6 Kc7 20. Rd3 Bc8 21. Ra3 Rd1+ 22. Rf1 {
½-½ Fritsche,L -Uhlmann,W Germany 1991}) 8. Bg5 (8. Bxd7+ Qxd7 9. c3 {
is Sakaev's and Landa's suggestion with compensation with the pawn which
hasn't been tried in practice yet.}) 8... f6 9. Nxd4 cxd4 10. Bh4 {Typical Tal,
preventing Black's development tactically.} Be7 {Preparing development with ...
Nh6-f7} (10... Nh6 11. Bxd7+ Qxd7 12. Bxf6 Qc6 13. Qh5+ Kd7 14. Rad1 gxf6 15.
Rxd4+ Ke7 16. Rfd1 Nf5 17. R4d3 {is enormously strong. g4, Rc3 and Rd7+ are
all in the air.}) 11. c3 (11. Qh5+ g6 12. Qe2 {is also worth a try, again
preventing Black's development with tactics:} Nh6 13. Nxf6+ Bxf6 14. Qxe6+ Be7
(14... Kf8 15. Qxf6+ Qxf6 16. Bxf6 {wins a pawn}) 15. Bxe7 Qxe7 16. Bxd7+)
11... Bxb5 12. Qh5+ Kf8 13. Qxb5 Qd5 14. Qd3 dxc3 15. Qxd5 exd5 16. Nxc3 Rd8
17. Rfd1 d4 18. Nb5 {and Tal somehow managed to squeeze out a win from this!
Black has equalised however.} Bc5 19. Rac1 Bb6 20. Bg3 Ne7 21. Bc7 Rd5 22. Bxb6
axb6 23. Rxd4 Rxd4 24. Nxd4 Kf7 25. Kf1 Rd8 26. Rc4 Rd5 27. Rb4 g5 28. g3 Ke8
29. Nc2 Rc5 30. Ne3 b5 31. a4 bxa4 32. Rxb7 h5 33. Rb4 Ra5 34. Nc4 Ra7 35. Ke2
Kf7 36. Kd3 Kg6 37. Rb6 Rd7+ 38. Rd6 Rb7 39. Ra6 Rb3+ 40. Ke4 Rb4 41. Kd4 Nf5+
42. Kc5 Rb3 43. Rb6 h4 44. Rxb3 axb3 45. g4 Nh6 46. f3 f5 47. Ne5+ Kf6 48. Kd5
Ke7 49. h3 fxg4 50. fxg4 Ng8 51. Nc6+ Kf6 52. Ke4 Kg6 53. Ne5+ Kf6 54. Nd7+ Kg6
55. Nc5 Kf6 56. Nxb3 Ne7 57. Nc5 {1-0 (57) Tal,M (2620)-Uhlmann,W (2555)
Tallinn (Estland) 1977}) (7. Be3 Qa5+ 8. Nc3 cxd4 9. Nxd4 Bb4 10. O-O Bxc3 11.
bxc3 {Reaches the same position as in the game, but with the bishop safer /
already on e3} Nge7 (11... Qxc3 12. Nxc6 bxc6 13. Bd4 {is the trick in this
case!}) 12. Rb1 (12. Nxc6 Bxc6 13. Bxc6+ Nxc6 14. c4 O-O 15. Qb1 Qc7 16. c5
Rfd8 17. Qb5 Rd7 18. Rad1 Rad8 19. Rd6 a6 20. Qb2 Ne7 21. Bg5 Rxd6 22. cxd6
Rxd6 23. Bf4 Qb6 24. Qe5 Rd7 25. Be3 Qc7 26. Qb2 Nf5 27. Bb6 Qc6 28. g3 h5 29.
h4 Rd2 30. Qb4 Nxg3 {0-1 (30) Kuijf,M (2445)-Uhlmann,W (2505) Amsterdam 1990})
12... O-O 13. Bd3 Nxd4 14. cxd4 Bc6 15. c4 Rad8 16. Qg4 f5 17. Qe2 f4 18. Bd2
Qg5 19. Qxe6+ Kh8 20. Qh3 h6 21. Bc3 Bd7 22. Qf3 Bg4 23. Qe4 Bf5 24. Qe2 Rde8
25. Qd2 Ng6 26. Rb5 Nh4 27. f3 a6 28. Rd5 Re3 29. Bxf5 Rxf5 30. Rxf5 Qxf5 31.
d5 Qg6 32. d6 Rd3 33. Qe2 Rxc3 34. d7 Qb6+ 35. c5 Qxc5+ 36. Kh1 {1-0 (36)
Stein,L-Uhlmann,W Moscow (Russia) 1971}) (7. dxc5 Qa5+ 8. Nc3 Bxc5 9. O-O Nf6
10. Bg5 Be7 11. Qe2 O-O 12. Rfd1 Rfd8 13. a3 a6 14. Bc4 Be8 15. h3 Rxd1+ 16.
Rxd1 Rd8 17. Rxd8 Qxd8 18. Bf4 h6 19. Qd3 Qxd3 20. Bxd3 Nd7 21. Bc7 Nc5 22. Be2
Bf6 23. b4 Bxc3 24. bxc5 Bb2 25. a4 Nb4 26. a5 Nxc2 27. Ne5 Nd4 28. Bd3 Nb3 29.
Nc4 Bd4 30. Kf1 Bb5 31. Ke1 Nxc5 32. Be2 Ne4 33. f3 Nc3 34. Bd3 Nd5 35. Bd8
Bc3+ 36. Kf2 Nb4 37. Be2 Nc6 38. Bb6 Bd4+ 39. Ne3 Bxe3+ 40. Kxe3 Bxe2 41. Kxe2
Kf8 42. Ke3 Ke7 43. Bc5+ Kf6 44. Bd4+ Nxd4 45. Kxd4 Ke7 46. Kc5 Kd7 47. h4 g5
48. h5 Kc7 49. g3 f5 50. f4 g4 {0-1 (50) Davydov,M (2190)-Uhlmann,W (2460)
Grieskirchen 1998}) 7... Qa5+ {Again demonstrating the drawback to advanced
attacking pieces. This disruptive check costs White time, forcing the knight
to retreat to c3 to protect the bishop on b5.} 8. Nc3 {[#] A crucial moment in
the game. This position is a nice conflict between easy, 1-move development
(Tal's development) and development based around specific tactical factors in
the position (Uhlmann's). In general, we can see nothing wrong with White's
position: the knights are out, the bishops are out, his king is ready to
castle, the centre is reasonably open and White has the d4-d5 break at his
disposal if Black doesn't react quickly. Black on the other hand has moved his
queen early in the game, only developed his queenside pieces and his king is
stuck in the centre. Listening to this litany of woes, you may feel that it's
time to bring out the wagging finger, shake your head sadly and say
"Grandmaster how could you?" There is another side to the story however.
Black's queen is a very powerful piece: it pins the knight to c3, attacks the
bishop on b5 and don't forget that bishop on g5 on the same rank (the queen on
a5 won't!) That bishop on g5 is protected by the knight on f3, but that knight
can easily be drawn away due to Black's pressure on d4. Add the opposition of
the bishop on d7 and the bishop on b5 into the mix and you start to see some
areas that might be of immediate concern to White. In fact, these tactical
factors give Black a number of reasonable possibilities. One of the keys to
this is that although Black's kingside is not yet developed, there are no
obstacles to the easy development of these pieces: both the bishop on f8 and
knight on g8 have multiple good squares available. If White doesn't find a way
to get at Black quickly, it won't be long before Black has caught up in
development.} cxd4 {Risky, especially against Tal, but not a bad move. Karolyi
suggests 8...h6 and I was particularly keen on 8...a6. Sakaev and Landa give
an interesting variation which was the starting point of my investigations (as
I didn't quite understand it!)} (8... a6 9. Bxc6 Bxc6 10. d5 (10. O-O {is
really bad!} cxd4 11. Qxd4 Bxf3 {wins a piece! The triumph of specific piece
placement over general development. That useful-looking bishop on g5 turns out
to be loose!} 12. Rad1 Bxd1 13. Rxd1 Qc7) (10. Ne5 Bxg2 11. Rg1 Bd5 {is my
engine's line with advantage to Black. It's worth a try in my opinion, but I
think that Black should cope.}) 10... exd5 {is the only line given by Sakaev,
which seems illogical to me. 10...Bxd5 feels like a much safer option and was
indeed one of Uhlmann's choices.} (10... Bxd5 11. O-O Bc6 {Feels like the best
idea to me: 11...Bxf3 gives White free and easy development, and at the very
least, it doesn't challenge White to find any difficult moves.} (11... Bxf3 12.
Qxf3 Qc7 13. Rad1 Be7 14. Bf4 Qc6 15. Ne4 (15. Qxc6+ bxc6 16. Na4 Nf6 17. c4 {
is another idea}) 15... Nf6 16. Nd6+ Bxd6 17. Qxc6+ bxc6 18. Bxd6 (18. Rxd6 Ke7
{I didn't appreciate this idea} 19. Rxc6 Nd5 20. Bg3 Rhc8 {looks pretty equal})
18... Nd7 19. Rd3 O-O-O 20. Ra3 {looks pleasant for White}) 12. Ne5 Qc7 {
The best idea for a number of reasons, one of which is simply that Black
maintains real winning chances only as long as his c-pawns are not doubled.}
13. Re1 Nf6 (13... Be7 14. Bf4 {followed by Qg4 / Qh5 is surprisingly
unpleasant}) 14. Nxc6 Qxc6 15. Bxf6 gxf6 16. Qh5 {and now} Rg8 (16... Be7 17.
Re3 h6 18. Rae1 Kf8 19. Nd5 Rd8 20. Nf4 e5 21. Ne2 Rd2 22. Ng3 {turned out a
little fraught for Black, but Uhlmann won through in the end} Rxc2 23. Nf5 Qd7
24. Rg3 Qd2 25. Rf1 Qe2 26. Qxe2 Rxe2 27. Rd3 Ke8 28. Rfd1 Re4 29. f3 Rd4 30.
Nxd4 cxd4 31. a4 a5 32. g4 Kd7 33. Rc1 b6 34. Rc2 Bc5 35. Kg2 Ke6 36. Rd1 f5
37. h3 h5 38. Re2 Rg8 39. Kf1 hxg4 40. hxg4 fxg4 41. f4 f6 42. fxe5 fxe5 43.
Rde1 Rg5 44. Kg2 d3 {0-1 (44) Nicevski,R (2395)-Uhlmann,W (2555) Skopje 1976})
17. Ne4 Rg6 {was my analysis before I realised that Uhlmann had played this
already! This also looks good for Black}) 11. O-O f6 {Sakaev's line} (11... d4
{was another alternative I couldn't refute easily.} 12. Re1+ (12. Ne5 Qc7 (
12... dxc3 13. Re1 Be7 (13... Ne7 14. Nc4) 14. Nxc6 bxc6 15. Qd6 Qd8 16. Bxe7
Nxe7 17. Rxe7+ Qxe7 18. Qxc6+ {wins}) 13. Qh5 {was the idea, to attack f7
before Black can play ...Be7 and ...0-0-0} (13. Re1 {--> 12.Re1}) 13... g6 (
13... Bd6) 14. Qh3 dxc3 15. Rae1 {was the idea, but it doesn't look too
terminal for Black} Be7 16. Qxc3 f6 {Couldn't find a way through, and nor can
my engine.}) 12... Be7 13. Ne4 {Strongest} (13. Ne5 Qc7 {Looked fine for Black
to me (surprisingly)} 14. Qg4 (14. Qh5 g6) (14. Ne4 Qxe5 15. Nf6+ gxf6 16. Rxe5
fxe5) 14... g6 {is not clear, but I don't think Black is doing too badly. 13.
Ne4 looks stronger.}) 13... O-O-O {The move Black wants to play if he can.} 14.
Ne5 (14. Bxe7 Nxe7 15. Neg5 {Very strong I thought but my engine finds extra
resources} Ng6 16. Nxf7 Rhf8 17. Nxd8 (17. N3e5 Nxe5 18. Nxe5 {may be an edge
for White}) 17... Bxf3 18. gxf3 Qxd8 {gives Black some compensation for the
exchange}) 14... Bxe4 15. Bxe7 Nxe7 16. Nxf7 Bd5 17. Rxe7 Bxf7 18. Rxf7 {
is definitely an edge for White}) 12. Nxd5 fxg5 13. Re1+ Ne7 {Sakaev's line} (
13... Be7 {was not obvious to me either. I came quite a way, but I needed my
engine to help me through the final defences!} 14. Nxe7 {Necessary to stop
Black from castling his king away to safety} (14. Ne5 Qxe1+ 15. Qxe1 Bxd5 16.
Rd1 Nf6 {looks fine for Black}) (14. Nxg5 O-O-O 15. Qg4+ (15. Rxe7 Bxd5) 15...
Kb8 (15... Bd7 16. Qf4 (16. Ne6 Bf6 {I couldn't find anything for White here.
Nor could my engine} 17. b4 cxb4 18. Qc4+ Bc6) 16... Bxg5 17. Qxg5 Nf6 18. b4
Qa3 19. Nb6+ Kb8 20. Qxc5 Bc6 21. Qe5+ Ka7 22. Qc5 Kb8 {is my engine's draw by
repetition.}) 16. Nxe7 Nxe7 17. Rxe7 Rhe8 {My engine thinks Black will have
sufficient play which seems fair enough}) 14... Nxe7 15. Nxg5 (15. Qd6 Qd8 (
15... O-O 16. Rxe7 {looked like a slight edge to me}) 16. Qxc5 Bxf3 17. gxf3 {
still felt dangerous for Black, but my engine is confident!}) 15... Rd8 {
Abandoning queenside castling, but intending to bring the Black queen into the
game, possibly via d2. The rook is also available to defend the knight on e7
from d7.} (15... Qd8 16. Qg4 Qd6 17. Rad1 Qf6 18. Re6 {is very strong}) 16.
Qh5+ (16. Qe2 O-O 17. Qxe7 (17. Qe6+ Kh8 18. Nf7+ Rxf7 19. Qxf7 Ng6 {is good
for Black}) 17... Rde8 {wins. A nasty trap!}) (16. Qg4 {with the threat of
Rxe7+ and Qe6-f7+ mate} Rd7 {is not easy to break. I tried} (16... Bd5 17. c4 {
forces Black to put the bishop to g8 before the rook on h8 has been activated.}
Bg8 18. Ne4) (16... Rd4 17. Qc8+ Qd8 18. Rxe7+ Kxe7 19. Qe6+ {is a typical
tactic}) (16... Rd6 17. Qf4 {is the engine solution} Qc7 18. Rad1 Rxd1 19. Qf7+
Kd8 20. Rxd1+ Kc8 21. Ne6) 17. Re3 (17. Re2 O-O) 17... h5 {My engine's top
choice again, given as advantage for Black} (17... O-O 18. Qe6+ Kh8 19. Rh3 {
The reason for Re3 instead of Rh3.}) (17... Rf8 18. Rae1 Bd5 {I found this
tough to break. In the end my line is my engine's top line.} 19. Nxh7 Rf7 20.
c4 Qd2 21. f3 (21. R3e2 Qd3 22. cxd5 Qxh7 23. d6 Rxd6 24. Qc8+ Rd8 25. Qxc5 g6
{looked fine for Black which my engine confirms.}) 21... Qd4 22. cxd5 Qxg4 23.
fxg4 {is much better for White.}) (17... Qd2 18. Rae1 O-O 19. R3e2 Qd6 20. Re6
Qd2 {is my engine's draw by repetition.}) 18. Qe2 c4 19. Re5 Qb6 20. Re1 O-O {
My engines felt Black would escape. This doesn't matter though as White has a
subtle and strong idea:}) 16... g6 17. Qe2 {This takes away the option of ...
0-0 due to the mate on h7.} (17. Qh6 Qd2 18. Qg7 Qxg5 19. Qxh8+ Kd7 20. Rad1+
Bd5 {wins for Black}) (17. Qh4 Kd7) 17... Rd7 (17... O-O 18. Qxe7 Rde8 19.
Qxh7# {is the difference}) 18. Rad1 Qd8 (18... Qc7 19. Ne6) 19. Qe5 Rg8 20.
Rxd7 Kxd7 (20... Qxd7 21. Nxh7) 21. Ne6 {is extermely painful for Black:} Qa5
22. b4 (22. Nxc5+ Kc8 23. Qe6+ Kb8 24. Qxe7 {is the easy human way to advantage
}) 22... Qb6 23. Nf8+ Kc8 24. Qe6+ Kb8 25. Nd7+ {is the fantastic engine
solution.}) 14. Nxe7 Bxe7 15. Nxg5 c4 {is the line Sakaev gives, and indeed
the engines are all in agreement: Black holds!} 16. Qh5+ (16. Qg4 {Mentioned
by Sakaev as worthy of investigation.}) 16... g6 17. Qg4 Qf5 18. Qd4 Qxg5 19.
Qxh8+ Kf7 20. Qxh7+ Kf8 21. Qh8+ {with a draw by perpetual}) 9. Nxd4 Bb4 {
Uhlmann isn't holding back in this game, consistently choosing the riskiest
lines.} (9... Be7 {Tal's thought during the game, was tried twice by Uhlmann
in subsequent years and looks very safe indeed. It's nice that Black can
develop by gaining a tempo against a developed White piece!} 10. Qd2 (10. Bxe7
Ngxe7 11. O-O O-O 12. Nb3 Qc7 13. Re1 Rfd8 14. Qh5 Nb4 15. Rac1 Bxb5 16. Qxb5
Nbd5 {was even in: Rooze -Uhlmann,W Bad Zwischenahn 2008}) 10... Nf6 11. O-O-O
{"with at any rate a sharp struggle" - Tal} Rd8 12. Nb3 Qc7 13. Bxf6 Bxf6 14.
Ne4 Be7 15. Nd6+ Bxd6 16. Qxd6 Qxd6 17. Rxd6 Ke7 {was dead equal in: Horvath,T
-Uhlmann,W Austria 2005}) 10. O-O Bxc3 11. bxc3 Qxc3 {This is the decisive
mistake, which loses to an astonishing tactical resource. I spent some time
looking at} (11... h6 12. Qh5 {interested me a lot} (12. Bh4 Qxc3 {must be an
improved version of the game. You'll see why it's important to knock the
bishop of the c1-h6 diagonal!} 13. Nf5 exf5 14. Re1+ Be6 15. Rxe6+ {could be
the only negative point for Black in the inclusion of ...h6 and Bh4 but...}
fxe6 16. Qh5+ Kf8 {wins}) 12... a6 {Again harrying White's advanced attacking
pieces and trying to male use of the queen's attack on the g5 bishop along the
5th rank.} (12... Nxd4 13. Bxd7+ Kxd7 (13... Kf8 14. Be7+) 14. Qxf7+ {The key
tactical point of 12.Qh5.} Kc6 15. cxd4 Qxg5 (15... hxg5 16. Qxe6+ Kc7 17. Qf7+
Kc6 18. Rfe1 Rh6 {which I assessed as winning for White. My engine gives:} 19.
Re5 {which certainly does the trick.}) 16. Rae1 {My line with which my engine
agrees}) (12... Qxc3 {looks like the other crucial try.}) 13. Bxc6 (13. Nf5
exf5 14. Rfe1+ Kf8 {unfortunately looks completely safe for Black: too many
bishops are hanging.}) 13... bxc6 (13... Bxc6 14. Nxe6 {looked like way too
much!} g6 15. Ng7+ Kf8 16. Be7+) 14. f4 {Is murky and worth a punt! However,
my feeling is that Black should be fine.} Nf6 (14... Ne7 15. f5 Nxf5 16. Rae1
O-O 17. Bxh6 gxh6 18. Nxf5 exf5 19. Qxh6 Qc5+ 20. Kh1 Rae8 21. Qg5+ {was my
engine's draw by repetition}) 15. Qh4 Ne4 (15... c5 16. Bxf6 gxf6 17. Qxf6 Rg8
18. Nf5 exf5 19. Rae1+ Kf8 20. Qxh6+ Rg7 21. Rf3) 16. Be7 Qxc3 (16... g5 17.
fxg5) 17. Rad1 {was the line I was looking at. It looks pretty fraught: I'm
not at all sure what's going on here!}) (11... a6 {was Tal's suggestion, but
seems pretty good for White.} 12. Bxc6 Bxc6 13. Nxc6 (13. Qg4 {also looks
awkward}) 13... Qxg5 14. Qd6 Ne7 15. Rfd1 {Tal} Nxc6 16. Qd7+ Kf8 17. Qxb7 {
was Tal's line}) 12. Nf5 {[#] Back at the board, Tal has just uncorked this!}
exf5 13. Re1+ Be6 14. Qd6 a6 {[#] You might think that Black could survive
this as there is no easy way to break through Black's position and all of
Black's weak dark squares seem to be covered by undeveloped Black pieces! The
knight on g8 covers e7 and the rook on a8 covers d8. However, there is one
undeveloped piece that is contributing nothing, and Tal exploits precisely
that one!} 15. Bd2 {[#]} Qxc2 16. Bb4 {Wow!! What a switchback! f8 is the one
dark square close to the Black king that cannot be defended and Tal finds his
way there!} axb5 (16... Nf6 17. Qe7# {[#]}) 17. Qf8+ Kd7 18. Red1+ Kc7 19. Qxa8
{And Uhlmann resigned. He cannot develop his kingside and} (19. Qxa8 Nxb4 20.
Qd8+ Kc6 21. Qd6# {is mate}) 1-0
[Event "Upminster Open"]
[Site "?"]
[Date "1987.05.25"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Sands, David"]
[Result "1-0"]
[ECO "E77"]
[Annotator "Sadler,Matthew"]
[PlyCount "43"]
[SourceVersionDate "2017.03.26"]
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5
9. e5 Ne4 10. cxd5 Nxc3 11. bxc3 Nd7 12. O-O dxe5 13. f5 {24 games after 12...
dxe5, but 13.f5 is still a novelty in Megabase! You saw it here first!} e4 (
13... gxf5 14. Bg5 {was the idea... Mmm...}) 14. Ng5 Bxc3 (14... gxf5 15. Rxf5
Nf6 {was the move that annoyed me greatly at first when analysing at home, but}
16. Re5 {was my huge discovery. Komodo gives me just a slight disadvantage!})
15. fxg6 hxg6 16. Bf4 Nf6 17. d6 {All preparation which isn't bad for a
13-year old working at home without an engine!} Bd7 18. Qb3 Bd4+ (18... Bxa1
19. Rxa1 Qb6 {was best, but still a little fraught after} 20. Qg3) 19. Kh1 Bc6
20. Rad1 Qa5 {A blunder} (20... Qd7 {was most sensible stopping the queen
coming to h3 though White has serious play now}) 21. Qh3 Qc3 22. Qh6 1-0
[Event "Peterborough Software Club Champ"]
[Site "?"]
[Date "1987.05.03"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Benjamin, John C"]
[Result "1-0"]
[ECO "E94"]
[Annotator "Sadler,Matthew"]
[PlyCount "110"]
[SourceVersionDate "2017.03.26"]
1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. d5 a5 6. Nf3 g6 7. Be2 Bg7 8. O-O
O-O 9. Be3 Ne8 10. Ne1 f5 11. exf5 gxf5 12. f4 Qe7 13. Nd3 exf4 14. Bxf4 Nb6
15. Nf2 Be5 16. Qd2 Ng7 17. Rae1 Bd7 18. Bd3 Rae8 19. c5 Bxf4 20. Qxf4 Qxe1 21.
Rxe1 Rxe1+ 22. Bf1 Nc8 23. c6 bxc6 24. dxc6 Be8 25. Qd2 Re7 26. Bc4+ Bf7 27.
Nd5 Bxd5 28. Bxd5+ Kh8 29. Nd3 Nb6 30. Nf4 Nxd5 31. Nxd5 Ref7 32. Nf4 {Played
to keep the Black knight on g7 and pawn on f5 under wraps, but probably too
cautious. 32.Qxa5 was better.} a4 33. Qa5 Re7 34. g3 Rb8 35. Nd3 Rf8 36. Qxa4
Ne6 37. Qc4 f4 38. gxf4 d5 39. Qxd5 Rg7+ 40. Kf2 Nxf4 41. Nxf4 Rxf4+ 42. Ke3
Rf8 43. Qe5 Rd8 44. a4 {I still remember the thrill I got once I cottoned on
to the idea I played in the game!} Kg8 45. Qe6+ Rf7 46. a5 Rd6 47. Qxd6 {
The engines don't spot this beforehand, but move quickly to +4 once it's
played.} cxd6 48. b4 {The pawns are unstoppable.} Ra7 49. b5 Kf7 50. b6 Rxa5
51. b7 Rb5 52. c7 Rxb7 53. c8=Q Re7+ 54. Kf4 Kg7 55. Qg4+ Kf8 1-0
[Event "4NCL Division 1b"]
[Site "Birmingham, ENG ENG"]
[Date "2015.11.14"]
[Round "1.151"]
[White "Sadler, Matthew D"]
[Black "Roberson, Peter T"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2659"]
[BlackElo "2408"]
[Annotator "Sadler,Matthew"]
[PlyCount "127"]
[EventDate "2015.11.14"]
[WhiteTeam "Guildford 1"]
[BlackTeam "Grantham Sharks 1"]
1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 Nf6 5. Nf3 Be7 6. O-O O-O 7. Re1 d6 8. c3
Bd7 9. a3 Qc7 10. Nbd2 Ne5 11. Qe2 Rac8 12. Nxe5 dxe5 13. a4 a6 14. a5 Rfd8 15.
Nb3 c4 16. dxc4 Qxc4 17. Qxc4 Rxc4 18. Be3 Bb5 19. f3 Rcc8 20. Bf1 Bxf1 21.
Kxf1 Kf8 22. Ke2 Ke8 23. Nc1 Nd7 24. Nd3 f6 25. Red1 Nc5 26. Nxc5 Rxd1 27. Kxd1
Bxc5 28. Bxc5 Rxc5 29. Kc2 Kd7 30. Rd1+ Kc7 31. b4 Rc6 {I spent a lot of my
remaining time trying to understand the position. I got some things right but
other things not quite perfect. White's basic idea is to push b4-b5 without
allowing Black to get his king to c5. It is easy to imagine that we will have
a number of face-off situations where White will win if Black gives way. In
those situations, Black will need to use a reserve tempo on the kingside in
order to maintain his king's position. Black has a fair number of these
reserve tempos, but White also has his fair share of face-off situations: 1.
Kc4 vs Kc6 2. Ka4, Pc5 vs Kc6 3. Kc4, Pc5 vs Kc6 & then b5+ ...axb5, Kb4
The order in which these situations are presented is not coincidental: White
can use each of them in turn to cream off Black's reserve tempi. What White
can also do is to turn the kingside pawn structure to his advantage. Just to
orientate ourselves in the situation, let's assume that Black is to move and
offers the exchange of rooks with 32...Rd6. How would White win then?} 32. h4 (
32. Z0 Rd6 33. Rxd6 Kxd6 34. h4 g6 35. g4 h6 {is the best defence I could find,
trying to keep the maximum tempi in reserve with a flexible kingside pawn
structure but...} 36. Kd3 (36. c4 {Not the cleverest idea, but still enough to
win in complicated fashion.} Kc6 37. Kd3 (37. h5 gxh5 38. gxh5 Kd6 39. Kd3 Kc6
40. Ke3 Kd7 41. f4 exf4+ 42. Kxf4 Kc6 43. Ke3 (43. e5 f5 {No way through on
the kingside!}) 43... Kd6 44. Kd4 Kc6 {These were the types of lines that I
was afraid of during the game.}) 37... Kd7 38. Ke3 Kc6 39. f4 exf4+ 40. Kxf4
Kd7 (40... g5+ 41. hxg5 hxg5+ 42. Ke3 Kd6 43. Kd4 Kc6 44. e5 f5 45. gxf5 exf5
46. b5+ Kd7 (46... Kc7 47. c5 axb5 48. e6 g4 49. e7 Kd7 50. c6+ bxc6 51. e8=Q+
Kxe8 52. a6 g3 53. a7 g2 54. a8=Q+) 47. c5 g4 48. c6+ bxc6 49. bxa6) 41. Ke3
Kc7 42. Kd4 Kc6 43. e5 f5 44. h5 gxh5 45. gxf5 exf5 46. b5+ Kd7 47. b6 {
Stockfish - I hadn't spotted this idea at all! It turns what I thought was a
certain draw into an easy win!} h4 48. Ke3 h3 49. Kf2 f4 50. c5 {followed by
e6 and c6!}) 36... Kc7 (36... Kc6 37. Kc4 h5 38. gxh5 gxh5 39. Kb3 Kc7 40. c4 {
--> leads to the game}) 37. Kc4 {This manoeuvre is very important to force
Black to lose one of his reserve tempi. It makes the win trivial} Kc6 38. h5
gxh5 39. gxh5 f5 {Black expends one of his reserve tempi.} 40. Kb3 Kb5 41. c4+
Kc6 42. Ka3 Kd6 43. Ka4 Kc6 44. c5 f4 {Black expends his second reserve tempo..
. and suddenly, he has none left!} 45. Ka3 Kc7 46. Kb3 Kd7 47. Kc4 Kc6 48. b5+
axb5+ 49. Kb4 {is the typical variation. Without quite fathoming out all of
this, I made a good start with 32.h4. As we have seen, the futher advanced the
h-pawn, the fewer reserve tempi options Black has.}) 32... h5 {All of a sudden
I got cold feet about the king and pawn ending!} (32... Rd6 33. Rxd6 Kxd6 34.
h5 g6 35. hxg6 hxg6 36. g4 {was precisely what I was aiming for. The beauty of
this line is that after Black plays ...f5, then g5 forces Black to use up yet
another reserve tempo}) (32... g6 {Trying to restrain the cramping of kingside
without committing himself to ...h5} 33. h5 gxh5 34. Rh1) 33. Rg1 {Not good!} (
33. Kb3 Rd6 (33... f5 34. Re1 Kd6 35. c4) 34. Rxd6 Kxd6 35. g4 {would have
been winning} g6 (35... g5 36. gxh5 gxh4 37. h6 {White is quicker and Black
cannot stop the pawn}) 36. gxh5 gxh5 37. c4 Kc6 {I didn't think this was
winning during the game (which explains why I went Rg1) as Black still has 2
reserve tempi (...f5 & ...f4) but...} 38. Kc3 Kd6 39. Kd3 Kc6 40. Ke3 Kc7 41.
f4 exf4+ (41... Kd6 42. c5+ Kc6 43. fxe5 fxe5 44. Kd3 Kb5 45. Kc3 Ka4 46. Kc4)
42. Kxf4 Kc6 (42... Kd6 43. e5+) 43. e5 f5 44. Kg5 {Amazing but true! The king
penetrates to the kingside. That's the downside to playing ...h5!}) (33. g4 {
is also winning though it's a little more complicated} hxg4 34. fxg4 Rc4 35.
Kd3 Rc6 36. c4 Rd6+ 37. Ke2 Rd4 38. Rxd4 exd4 39. e5) 33... Rd6 (33... f5 34.
Re1 Kd6 {I'm a tempo down in comparison to the 33.Kb3 line}) 34. g4 hxg4 35.
Rxg4 Rd7 {White is still much better in this endgame, but it's no longer easy!}
36. Kb3 Kc6 37. h5 Rf7 38. Rg1 Rd7 39. Rg2 Rf7 40. c4 Rd7 41. Kc3 Rf7 42. Kb3 (
42. Rd2 Rf8) 42... Rd7 43. Ka4 Rf7 44. Rg6 Kd6 45. Rg1 Kc6 46. Rd1 (46. Rg2 Rd7
47. Rg6 Rf7 48. c5 {was what I had been planning, but suddenly I got worried by
} (48. h6 {I looked at this when I thought that my line didn't work} gxh6 49.
Rxh6 Kd6 50. c5+ Kc6 51. Kb3 (51. Rg6 Rf8 52. Rg7 f5 53. Re7 (53. Rg6 fxe4 54.
fxe4 Kd7 55. Rg5 Kc6 56. Rxe5 Rf6) 53... fxe4 54. fxe4 Rf6) 51... Kd7 52. Kc4
Kc6 53. Rg6 Rf8 54. Rg7 f5 55. Rg6 Kd7 56. c6+ {Hadn't seen this} Kxc6 (56...
bxc6 57. Kc5) 57. Rxe6+ Kc7 58. Kd5 {Hmm...how winning is this?}) 48... Kc7 49.
b5 Rd7 {I thought this was a miracle defence...} 50. Kb4 Rd4+ (50... Rf7 51. h6
gxh6 52. b6+ Kc6 53. Rg8 Kd7 54. Rb8) 51. Kc3 axb5 {However} (51... Rd7 52.
bxa6 bxa6 53. h6 gxh6 54. Rxf6 Rh7 55. Rxe6 h5 56. Rxa6 Rh8 57. Rg6 h4 58. Rg2
h3 59. Rh2 Kc6 60. Kc4) 52. Rxg7+ Kc6 53. h6 Rd1 54. h7 Rh1 55. Re7 {still
looks very strong. Unsure of myself, and influenced by Black's time shortage,
I decided to play around for a little while longer}) 46... f5 {Black decided
to undertake action. It's the right choice} 47. c5 (47. Rg1 fxe4 48. fxe4 Rf4
49. Rg6 Rxe4 50. Kb3 Re3+ 51. Kc2 Re4 52. Kd3 Rh4 {mmm}) 47... fxe4 48. fxe4
Rf6 (48... Rf4 {I was rather pessimistic about my winning chances after this
move} 49. Rd6+ Kc7 50. Rxe6 Rxe4 51. Rg6 Rh4 52. Rxg7+ (52. Rg5 Kc6 53. Rxe5
Rg4) 52... Kc6 {seemed drawn to me} 53. Rh7 Rh3 {However, after the passive 48.
..Rh6 I was happy again. My whole position made sense again!}) 49. Rd6+ Kc7 50.
b5 axb5+ 51. Kxb5 Rh6 52. a6 bxa6+ 53. Rxa6 Rxh5 54. Ra7+ Kd8 55. Kc6 {An easy
position for White to play. He's so active!} Rh4 56. Kd6 Kc8 57. c6 Kb8 58.
Rb7+ Ka8 59. Rxg7 Rxe4 60. Rg8+ Ka7 61. c7 Rd4+ 62. Kxe5 Rc4 63. c8=Q Rc6 64.
Qd7+ 1-0
[Event "Schlechter Memorial"]
[Site "Vienna"]
[Date "1947.??.??"]
[Round "14"]
[White "Szabo, Laszlo"]
[Black "Gruenfeld, Ernst"]
[Result "1-0"]
[ECO "D24"]
[Annotator "Sadler,Matthew"]
[PlyCount "73"]
[EventDate "1947.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "AUT"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.10"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.10"]
[SourceQuality "1"]
1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. Nf3 dxc4 5. e4 Bb4 6. e5 Nd5 7. Bd2 Bxc3 8.
bxc3 b5 9. a4 c6 10. Ng5 {As Szabo relates, "I made this move with great
satisfaction even though I had no idea that Tartakower had marked this knight
move when he analysed the first game of the Alekhine-Bogolyubow match in 1929,
with 2 exclamation marks and with the remark "the real Alekhine". And the very
same position was reached in that game, with a different move order"} f6 11.
Ne4 (11. exf6 {was Alekhine's choice which was considerably stronger in my
opinion.}) 11... O-O 12. g3 fxe5 13. dxe5 Nd7 14. f4 N7b6 15. axb5 cxb5 16. Qb1
Bd7 17. Ng5 Rf5 (17... g6 18. h4 {was Szabo's idea. As you can see, he wasn't
shy to attack!}) 18. Bh3 Rxg5 19. fxg5 Qc7 (19... Na4 {was recommended by
Szabo and it looks strong. If White doesn't castle, then ...Qb6 will keep his
king in the centre. The text is much more accomodating}) 20. O-O Qxe5 21. Qc2
Qd6 22. Bg2 Qc5+ 23. Kh1 Bc6 24. Qe4 Qe7 25. g6 hxg6 26. Qxg6 Be8 27. Qg4 Bc6
28. Bg5 Qd7 29. Kg1 {A very neat idea, making sure that White can take on c6
without allowing a recapture with check.} Na4 30. Be4 Ndxc3 31. Bxc6 Qxc6 {
No check! So White can continue with his attack!} 32. Bf6 Qd7 33. Bxg7 Qxg7 34.
Qxe6+ Kh8 35. Rf6 Qg5 36. Raf1 Qc5+ 37. R1f2 {A neat final attack but...
Alekhine did it even better!} 1-0
[Event "BL 2002/03"]
[Site "?"]
[Date "2003.02.??"]
[Round "?"]
[White "Heidrich"]
[Black "Sadler, Matthew"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2415"]
[BlackElo "2624"]
[Annotator "Sadler,Matthew"]
[PlyCount "149"]
[EventDate "2002.10.21"]
1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 g6 6. Nc3 Nxc3 7. bxc3 Bg7 8.
f4 d6 9. Bd3 Nc6 10. Be3 O-O 11. Nf3 Bg4 12. O-O Rc8 13. Rc1 Na5 14. Qe2 Qd7
15. h3 Bxf3 16. Qxf3 b6 17. exd6 Qxd6 18. f5 Nc4 19. Bg5 Bf6 20. Bxf6 exf6 21.
Rfe1 g5 22. Qe2 Na5 23. Qe7 Rfd8 24. Rc2 Rc7 25. Qxd6 Rxd6 26. Kf2 Rdc6 27.
Rec1 Nc4 28. Bxc4 Rxc4 29. Ke3 Kf8 30. Kd3 Ke7 31. Rb1 h5 32. g3 Kd6 33. Rb3
Rc8 34. a3 R4c7 35. Re2 Rc4 36. Rc2 R4c6 37. Rbb2 Re8 38. Re2 Rec8 39. Rec2 Re8
40. Re2 Rec8 41. Rb3 Rc4 42. Re1 Ra4 43. Ra1 Ra5 44. Rf1 Ra4 45. Rf2 Kd7 46.
Rc2 Ra5 47. Rf2 Ra4 48. Rf3 Kd6 49. Re3 Ra5 50. Rf3 b5 51. a4 bxa4 52. Ra3 Rb8
53. c4 Rb1 54. Kc2 Rh1 55. g4 hxg4 56. hxg4 Rg1 57. Rg3 Rxg3 58. Rxg3 {On the
20th move, I'd taken a grandmasterly decision to double my f-pawns with ...
exf6 and thus stop any White play on the f-file and I'd been cursing myself
ever since! As you can see, my pawn structure in this ending is a bit of a
disaster: without pawn breaks, I will have to rely on my activity to tease out
concessions from White. In general, I'm looking to get one of White's passed
pawns on c4 and d4 to advance so that I can nestle my king in between them. I
also have a target in the g4 pawn, but going after it with my rook is a
double-edged decision. Without Black's rook to assist, Black's king will have
a tough time holding back 2 passed pawns supported by a rook!} a3 59. Kb1 a2+
60. Ka1 {White's king has been completely tied down which restricts White's
ability to make temporising moves.} Ra4 61. Rc3 Kc6 {Avoiding the threat of 62.
c5+ Kc6 63.d5+ and waiting for a reaction from White.} 62. Rc2 {White's tempo
move, and a very annoying one: as Black has to watch out for counterplay with
Rxa2 and Rxa7. Black is unable to exchange off rooks as the pawn ending is
competely lost (a consequence of Black's earlier acceptance of a damaged pawn
structure).} a5 (62... Ra3 {was the move I wanted to try but I didn't like the
intermezzo} 63. Rxa2 Rg3 64. Ra6+ {which leads to a rapid cleanup of all the
pawns. By moving the a-pawn to a5, I stop this intermediate check which
introduces some extra possibilities. The drawback to 62...a5 is that after a
sequence d5+ ...Kc5, Rd3 I no longer have ...Ra6 to prevent d5-d6. I couldn't
see any way however to maintain all my possibilities.}) 63. Rc3 (63. Z0 {
Imagine if Black were to move now:} Ra3 64. Rxa2 Rd3 65. Rxa5 (65. d5+ Kc5 66.
Ra4 {is ugly but looks like a clear draw} Rd4 67. Kb2 Rxg4 68. Rxa5+ {Makes
use of tactics along the 4th rank - a recurring theme in this ending} Kb4 (
68... Kxc4 69. Ra4+) 69. Ra7 Rxc4 70. Rxf7 Rd4 71. Rxf6 Rxd5 {with a draw})
65... Rxd4 66. Ra6+ Kc5 67. Kb2 {is more or less White's only way, again using
4th rank tactics to hold things together} (67. Rxf6 Rd7 {was exactly what I
was aiming for. Black's plan is simply to take the c-pawn and then take his
king over to White's kingside pawns. It's a slow plan, but White's king is far
enough away to make things very fraught. A scenario where Black captures both
White's pawns in exchange for his f-pawn and then gets his king in front of
his g-pawn (as described in http://matthewsadler.me.uk/the-endgame/
king-rook-pawn-vs-king-rook-part-i/) is extremely plausible.} (67... Rxg4 68.
Rxf7 Kxc4 {There are many ways to draw, but the following neat way occurred to
me first:} 69. f6 Kd5 70. Rc7 Ke6 (70... Rf4 71. Rg7) 71. f7 Rf4 72. Rc5 g4 73.
Rc4 Rf1+ 74. Kb2 g3 75. Rg4 Rf2+ 76. Kc1) 68. Ra6 Kxc4 69. f6 {looked like the
best to me: White wants to exchange off his f-pawn for Black's g-pawn.} Kd4 (
69... Rd4 70. Ra5 Rd5 (70... Rxg4 71. Ra4+) 71. Ra7 Kd4 72. Rxf7 Ke5 73. Rf8
Ke6 (73... Rd4 74. f7) 74. Kb2 Rd4 75. Kc3 Rxg4 76. Kd3 Rf4 77. Ke3 {draws.
White's king has got back into play.}) 70. Ra5 Rd5 71. Ra7 Ke5 72. Rxf7 Rd6 73.
Rg7 (73. Kb2 Rxf6 74. Rb7 Kf4 75. Rb4+ Kg3 {followed by ...Rf4}) 73... Kxf6 74.
Rg8 Rd4 75. Kb2 Rxg4 76. Kc3 Rf4 77. Kd3 Kf5 {and Black will win}) 67... Kxc4 (
67... Rxg4 68. Rxf6 {Black can no longer play ...Rd7 to keep more pawns on})
68. Kc2 Rd7 (68... Rxg4 69. Ra4+) (68... Kd5 69. Rxf6 {as ...Rd7 is impossible}
) 69. Ra4+ Kb5 70. Re4 {leaves White with a holdable 2 vs 3 on one side}) 63...
Kd7 {I was looking to triangulate to get my position with Black to move, but
White decided not to sit still} 64. d5 (64. Rc2 Kc7 65. Rc3 Kc6 66. Rc2 Ra3 {
was what I wanted...}) 64... Kc7 65. c5 {That certainly got my heart rate
going! My subtle triangulations were being met by an all-out assault!} Rxg4 66.
d6+ Kc8 (66... Kd8 67. c6 Rd4 68. c7+ Kc8 69. Rc6 {is also losing. There is no
defence to the threat of Ra6-a8+}) (66... Kc6 {is the most natural move, but
this loses at once to} 67. Rd3 Kd7 68. c6+) 67. Re3 (67. c6 Rd4 68. d7+ Kc7 {
followed by ...g4-g3 wins}) 67... Rc4 (67... Rd4 {was a better practical
chance, though by now White has a clear sight of a draw} 68. Re7 {draws} (68.
Re8+ Kd7 69. Re7+ Kc6 70. Rc7+ Kb5 71. d7 g4 {wins}) 68... Rd5 69. Rc7+ Kd8 70.
Kxa2 Rxf5 71. c6 {draws as in the game}) 68. Re8+ Kd7 69. Re7+ Kd8 (69... Kc6
70. Rc7+ Kb5 71. d7 Rd4 72. c6 {wins as the pawns are too fast}) 70. Rc7 Rc2
71. c6 g4 72. Rd7+ Kc8 73. Rc7+ Kd8 74. Rd7+ Kc8 75. Rc7+ {Neither side can
avoid the repetition. A well-played ending by both sides.} 1/2-1/2
[Event "BL Castrop"]
[Site "?"]
[Date "2001.01.28"]
[Round "?"]
[White "Holzke, Frank"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "E54"]
[Annotator "Sadler,Matthew"]
[PlyCount "120"]
[EventDate "2001.??.??"]
1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8.
Bxc4 O-O 9. O-O b6 10. Qe2 Bb7 11. Rd1 Bxc3 12. bxc3 Nbd7 13. Bd3 Re8 14. c4
Bxf3 15. Qxf3 e5 16. Qh3 exd4 17. Bb2 Ne5 18. Bxd4 Nxd3 19. Rxd3 Qe7 20. Re3
Qd6 21. Bxf6 Qxf6 22. Rae1 Rxe3 23. Qxe3 Qc6 24. Qf4 Qa4 25. Qf3 Rc8 26. Qb3
Qc6 27. h3 h6 28. Re7 a5 29. Qb5 Kf8 30. Ra7 Qe6 31. Kh2 Kg8 32. Ra6 Qxc4 33.
Qxc4 Rxc4 34. Rxb6 Rc2 35. Ra6 Rxa2 36. h4 h5 37. f3 Kh7 38. Kg3 f6 39. Ra7 a4
40. Ra5 (40. Kf4 a3 41. g4 hxg4 42. fxg4 {(there are many other ways) would
lead to a position similar to the one I had against Sarakauskas in the last
round of the Bury St Edmunds Open in 2014. White plays h5 and waits. Strangely
enough my engines claim that Black is winning after} Ra1 43. Kg3 a2 44. Kg2 Kg8
45. h5 Kf8 {followed by playing around with the king, but I don't see it
myself!} 46. Ra8+ Ke7 47. Ra7+ Ke6 48. Ra6+ Ke5 49. Ra5+ Kf4 50. Ra4+ Kg5 51.
Kh2 f5 (51... Rb1 52. Rxa2 Kxg4 53. Rg2+) 52. gxf5 {White can happily lose
both pawns and still draw}) 40... Kg6 41. Kh3 Ra3 42. Kg3 Ra1 43. Kh2 a3 44.
Ra6 Ra2 45. Kg3 Kh7 46. Ra5 Kh6 47. Ra6 Ra1 48. Ra5 Kg6 49. Ra7 Ra2 50. Ra6 {
A careless move, giving Black the opportunity to instigate action in the most
favourable circumstances. If you don't have a win, that's the next best thing!}
(50. Kf4 {would have prevented Black from activating his king} Rxg2 51. Rxa3 {
(is not at all dangerous) while}) (50. Ra5 Kf7 51. Rxh5 Rc2 52. Ra5 a2 {
would win White a tempo on the game continuation.}) 50... Kf5 51. Ra5+ Ke6 52.
Rxh5 Rc2 {The point of playing the rook to a2 on the 49th move: Black can
follow up the rook move away to the side (52...Rc2) with the supported advance
of his passed pawn to the 7th rank. From the side, the rook interferes
tactically with White's counterplay: the attack on Black's kingside pawns with
his king. The rook does this in 2 ways: 1. by attacking the pawn on g2 which
forces White to spend several tempi preparing the advance of his king. 2. via
the possibility of lateral checks which under the right circumstances can
allow Black to block the a-file with gain of tempo.} 53. Ra5 a2 54. Kh3 (54.
Kf4 Rxg2 {is perfect for Black as his rook covers the weakest point in Black's
kingside structure: the pawn on g7. For this reason, White first has to secure
his g-pawn before he can start up his desperate race to Black's kingside pawns.
}) 54... Kd6 55. g4 {A big mistake, caused by tension and time shortage. White
has a window of opportunity to activate his king which he must exploit while
he has the chance. The pawns can follow later!} (55. g3 Kc6 56. Kg4 Kb6 (56...
g6 {Prevents the White king from entering f5, but also gives White a closer
target to exchange pawns.} 57. f4 {Some care is required} (57. h5 gxh5+ 58.
Kxh5 Rc5+) 57... Kb6 58. Ra8 Kb5 59. h5 (59. f5 Rc4+ 60. Kf3 Ra4 {is a
well-known trick and demonstrates the power of the rook's position to the side
of the passed a-pawn on the 7th.} 61. Rb8+ Ka5 62. Ra8+ Kb4 63. Rb8+ Ka3) 59...
gxh5+ 60. Kxh5 Kb4 {Threatening ...Rc5-a5 but White is in time!} 61. Kg6 (61.
f5 Kb3 62. Kg6 {also works}) 61... f5 62. Rb8+ (62. Kxf5 Rc5+ {again!}) 62...
Kc4 63. Ra8 {as after} Kb3 64. Kxf5 {Black can no longer play ...Rc5-a5}) 57.
Ra8 Kb5 58. Kf5 {The perfect timing! With Black's king on b5, ...Rc5-a5 is no
longer possible} Kb4 {Threatening ...Rc5-a5} 59. Kg6 {Past the danger area!
White is now safe} Kb3 60. Kxg7 {leads to a draw} Rc4 61. Rxa2 Kxa2 62. Kxf6
Rc3 63. f4 Rxg3 64. h5 Rh3 65. Kg6 Rg3+) 55... Kc6 56. g5 Kb6 57. Ra8 fxg5 58.
hxg5 Kb5 {You can see the difference at once with 55.g3: Black has got his
king in the perfect spot to prevent White's king from advancing} 59. g6 (59.
Kg4 Rc4+ 60. Kf5 Ra4) (59. f4 Kb4 60. Kg4 g6) 59... Kb4 60. Kg4 Rc4+ (60...
Rc4+ 61. Kf5 (61. f4 Kb3 {followed by ...Ra4}) 61... Rc5+ 62. Ke6 Ra5) 0-1
[Event "Christmas Congress 1938/39-19 Premier"]
[Site "Hastings White Rock Pavilion"]
[Date "1939.01.03"]
[Round "6"]
[White "Szabo, Laszlo"]
[Black "Pirc, Vasja"]
[Result "1-0"]
[ECO "A29"]
[Annotator "Sadler,Matthew"]
[PlyCount "131"]
[EventDate "1938.12.28"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{Commented by Szabo in "My Best Games of Chess"} 1. c4 (1. Nf3 g6 2. e4 Bg7 3.
d4 d6 4. Be2 Nf6 5. Nc3 O-O 6. O-O c6 7. a4 a5 8. Be3 Na6 9. Nd2 Nb4 10. Ncb1
e5 11. dxe5 dxe5 12. Na3 Be6 13. Nac4 Bxc4 14. Bxc4 {Watch how many pieces
make use of this square!} Qd7 15. f3 Nh5 16. g3 Rad8 17. Bb3 {Retreating to b3
to free c4 for the knight} c5 18. Qe2 {Getting into contact with c4} b6 19.
Rfd1 Qc7 20. c3 Nc6 21. Nc4 {Occupying c4 with the knight} Nf6 22. Na3 {
And vacating it immediately for...the queen!} Na7 23. Qc4 Rfe8 24. Kg2 h6 25.
Rxd8 Rxd8 26. Rd1 Rxd1 27. Bxd1 {The bishop vacates b3 for the queen...} Bf8
28. Be2 Kg7 29. Qb3 Ne8 30. Ba6 Nd6 31. Qd5 Ne8 32. Nc4 {And now the knight
returns to c4} Nf6 33. Qxe5 Qd8 34. Bf2 g5 35. Bb7 Kh8 36. Bd5 Kg8 37. Qf5 {
1-0 (37) Stean,M (2300)-Planinec,A (2535) Moscow 1975}) 1... Nf6 2. Nc3 e5 3.
g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. O-O Be7 8. d3 O-O 9. Be3 Bg4 10. a4
a5 11. Rc1 Rc8 12. Nb5 {What are the relative advantages and disadvantages of
the moves a4, ...a5? First of all, Black gains a stable outpost on b4 for one
of his knights; secondly, White's chances of organising a pawn break on the
queenside have now gone which adds an extra element of safety to Black's
position. White's knight on b5 is less stable than Black's knight on b4 as
Black can potentially chase the knight away with ...c6. However, as long as
White is careful to place a rook quickly on the c-file, Black will not find
this easy to organise which means his knight will be rooted to c6 while he
will need to keep one piece in touch with the c7 pawn. In general, I prefer
White's side of the deal slightly.} Nd5 13. Bc5 Bxc5 (13... Re8 14. d4 {
is similar to 13...Bxc5 14.Rxc5 Re8 15.d4}) 14. Rxc5 {I was surprised at how
powerful the exchange of dark-squared bishops seems to be for White. Of course
I realised that the dark-squared bishop was probably White's worst minor piece
and that he was happy to exchange it, but I had thought that Black was also
happy to exchange off his own dark-squared bishop which didn't seem to be
doing much either. 2 factors tip the balance in White's favour: 1. White
gains access to the c5 square which he can occupy right away with a major
piece. c5 is very close to Black's position. From c5 the rook puts pressure on
Black's centre (d5,e5) and queenside (a5,c7) while Black cannot drive the rook
away easily. 2. The exchange of dark-squared bishops weakens the solidity of
Black's central dark squares which in turn increases the strength of White's
d4 break.} Bxf3 (14... Re8 {Not mentioned by Szabo} 15. d4 {Komodo} (15. Rxd5
Qxd5 16. Nfd4 Qc5) (15. Ng5 Ndb4 (15... Qxg5 16. Bxd5 Nd4 17. Nxd4 exd4 18.
Bxf7+ {is the idea}) 16. f4 {The only way to try and justify Ng5} Nd4) (15. h3
Bh5 (15... Be6 16. Rxc6 bxc6 17. Na7 Ra8 18. Nxc6 Qd6 19. Ncxe5 {This doesn't
feel like an advantage for White due to his weak queenside. Komodo leaves it 0.
00}) 16. d4 (16. Rxc6 bxc6 17. Na7 Ra8 18. Nxc6 Qd6 19. Qc2 {is suggested by
Komodo. Should be reasonable for Black though.}) (16. Nfd4 Nxd4 17. Rxd5 Nxe2+
(17... Qf6 18. Nxd4 exd4 19. Rxh5 {is the idea}) 18. Kh2 Qf6 {wins for Black})
16... exd4 17. Nfxd4 Ncb4 {--> 15.d4}) 15... exd4 (15... e4 16. Ne5 Nxe5 17.
dxe5 Rxe5 18. Qd4 f6 19. Bxe4 {is a little edge for White according to Komodo})
(15... Bxf3 16. Bxf3 e4 17. Bg4 Ra8 18. Rxd5 Qxd5 19. Nxc7 Qxd4 20. Qb3 Qb4 21.
Qxb4 Nxb4 22. Nxe8 Rxe8 23. Rc1 g6 24. Bd7 Re7 25. Bb5 {is an edge for White
according to Komodo...}) 16. Nfxd4 Ncb4 (16... Nxd4 17. Qxd4 {is a clear
advantage for White}) (16... Ndb4 17. Nxc6 Nxc6 18. Qxd8 Rcxd8 19. Nc3 {
is a clear White advantage according to Komodo}) 17. h3 Bh5 18. Nc3 {This move
did not occur to me} (18. Nf5 {was one of the interesting lines that occurred
to me. Black cannot chase the knight on b5 away with ...c6 due to Nbd6.} Bxe2
19. Qd4 Qg5 (19... Nf6 20. Qxd8 Rcxd8 (20... Rexd8 21. Ne7+ Kf8 22. Nxc8 Bxf1
23. Kxf1 {is better for White according to Komodo. My line}) 21. Ra1 (21. Nxc7
Bxf1 (21... Ne4 {My line. Also good for Black}) 22. Nxe8 Nd7) 21... Bxb5 22.
axb5 {I thought some compensation - Komodo not really impressed} Nbd5) (19...
Qf6 20. Qxf6 (20. Bxd5 Qxf5 21. Bxb7 Qxh3 22. Bg2 Qh6 {Couldn't find anything
good against ...Qxf5}) 20... Nxf6 21. Rfc1 (21. Ra1 Bxb5 22. axb5 b6) 21... Nd3
22. Rxc7 Nxc1 23. Rxc8 Rxc8 24. Ne7+ Kf8 25. Nxc8 Nd7 {is equal according to
Komodo}) 20. Bxd5 (20. Ne3 {Komodo} b6 21. Rxd5 Nxd5 22. Bxd5 Rcd8 {is good
for Black according to Komodo}) 20... Qxf5 {looks nice for Black}) (18. Na7 Ra8
19. Rxa5 {I saw it, and couldn't find anything wrong but had problems
believing this one!} (19. Bxd5 Nxd5 20. Ndc6 bxc6 21. Nxc6 Bxe2 (21... Qf6 22.
Qxd5 Bxe2 {I assumed this would be fine for Black, but Komodo thinks better
for White!} 23. Rfc1 Bf3 24. Qf5) 22. Nxd8 Bxd1 23. Rxd1 Rexd8 24. Rdxd5 Rxd5
25. Rxd5 {I thought a small edge for White}) 19... c6 (19... b6 20. Nac6) (
19... c5 20. Rxc5 Rxa7 21. Qb3 {Looked tricky for Black to me: Komodo agrees})
(19... Qd7 {I started to get nervous about moves like this... Komodo thinks
this is just good for White} 20. Qb3 c6 21. e4) 20. Naxc6 bxc6 21. Nxc6 Qxa5 (
21... Nxc6 22. Rxd5) (21... Rxa5 22. Nxd8 Rxd8 23. g4 Bg6 24. e4) 22. Nxa5 Bxe2
(22... Rxa5 23. Qd2) 23. Qd2 Bxf1 24. Kxf1 Rxa5 (24... Rad8 25. Kg1 {Komodo} (
25. Bxd5 Nxd5 26. Qc1 {was my line})) 25. Bxd5 Rxd5 26. Qxb4 {is clearly
better for White according to Komodo. My line!}) 18... c6 19. Nxd5 cxd5 20.
Rxc8 Qxc8 21. Qd2 {is an edge for White according to Komodo}) 15. Bxf3 Ndb4 16.
Qc1 Qe7 {Wrongly given as 16...Qd7 in Chessbase} 17. Qe3 {An interesting
placement of the queen on the central / kingside dark-squares that I've seen
before a couple of times. For example, Aronian put his queen on f4 against
Giri.} Rfe8 {You understand Black's play now! Black defends the queen on e7,
ready to meet d4 ...exd4, Qxe7 with ...Rxe7 when everything stays protected.} (
17... Rcd8 {Was my original idea, aiming to play ...Rd7 to defend c7 from a
more active position, supporting a future ...Nd4} 18. d4 {Threatening both
dxe5 and d5} (18. Rfc1 Rd7 19. R5c4 {as in the game} f5 {ignoring the threat}
20. Na7 Nd4 {possible due to the position of the rook on d7}) (18. Bxc6 Nxc6
19. f4 {was another idea} (19. d4 Nxd4 20. Rxe5 Qb4 {looked alright for Black})
19... f6 20. fxe5 fxe5 {didn't look very much to me}) 18... Nxd4 (18... exd4
19. Qxe7 Nxe7 20. Rxc7) 19. Rxc7 (19. Rxe5 Nxf3+ 20. exf3 {might be something
for White though it is a shame to ruin White's kingside pawn structure}) 19...
Rd7 (19... Nxf3+ 20. Qxf3 Rd7 21. Qxb7) 20. Rxd7 Nxf3+ 21. exf3 Qxd7 22. Qxe5 {
White's extra pawn is doubled, but still extra!}) (17... f5 18. Bxc6 (18. d4 e4
19. Bg2 Rcd8 {is fine for Black}) 18... Nxc6 19. f4 {My idea again, exploiting
Black's weakened central dark squares, and Komodo's #1 choice in this position!
} exf4 (19... Rfe8 20. fxe5 Nxe5 21. Rxf5 {and} Nf3+ {doesn't work as the rook
on f5 covers the rook on c5}) 20. Qxe7 Nxe7 21. Rxf4 {and White wins a pawn} c6
22. Nd6) 18. Rfc1 f6 (18... Rcd8 {Again my plan... and then I suddenly
realised...} 19. Na7 Nxa7 20. Rxc7 {picks up a pawn} Qf6 21. Bxb7 (21. Qxa7
Nxd3 {was my line of course, and still good.}) 21... e4 (21... Rd4 22. Be4 Qa6
23. Qg5 Rf8 24. Qe7 {wins according to Komodo}) 22. dxe4 Rd4 23. Bd5 Nxd5 24.
exd5 Rd1+ 25. Kg2 Qd8 26. Qxe8+ Qxe8 27. Rxd1 {is a clear advantage for White
according to Komodo!}) 19. R5c4 {With the threat of Na7!} (19. d4 exd4) 19...
Ra8 {To prevent the knight from moving to a7.} 20. Qe4 {Missing the tactical
opportunity of Na7 - and thus unable to break through by queenside pressure
alone - White starts on a manoeuvring phase. On the one hand, he uses a
typical method to loosen Black's position: he brings his troops annoyingly
close to Black's very borders (Qe4) and hopes that Black can be provoked into
driving away his pieces. White assumes this will open up new channels for his
better-placed pieces. It's an echo of White's placement of his rook on c5 on
the 14th move. At the same time, White has a number of small ideas: 1.
h4-h5 to gain space on the kingside and tie Black down a little there 2.
Bringing the queen to c4 (after Rc5) maybe achieving the exchange of queens.
White could then try to add more pressure to the queenside by reshuffling his
pieces with something like Nc3, Rb5, Ne4-c5 or Na3, Rb5, Rcc5 and Nc4. As I
thought of this idea, a powerful example of this type of shuffling pieces
around a key square came to my mind. I first read about it in Herman Grooten's
recent book "Chess Strategy for Club Players: The Road to Positional
Advantage". It's the game Stean-Planinc, Moscow 1975. After seeing how White
shuffles his pieces around b3 and c4 with decisive effect, you can understand
how White might want to use the b5 / c5 / c4 squares here for the same effect.}
(20. Na7 {Komodo!} Rxa7 (20... Nxa7 21. Rxc7 Qd6 22. Bxb7 {doesn't surprise
you when you've seen the other lines!}) 21. Bxc6 Rea8 (21... Nxc6 22. Rxc6 b6
23. R1c4 {is a clear advantage for White according to Komodo}) 22. Be4 c6 {
In principle, Black has got what he wants by moving his knight off the c-file
and blocking White's pressure there with ...c6, but he has paid a price: his
rooks are awfully placed!} 23. d4 {will be very awkward for Black}) 20... g6 {
Black falls into White's trap at once!} (20... Na2 21. Rxc6 bxc6 22. Rxc6 {
is pointed out by Szabo}) (20... Qf7 {intending to regroup with ...Re7
(defending c7) and ...Rd8 seems most tempting to me. Black is then best
prepared to play ...Nd5 or ..Nd4 (possibly in combination with ...f5) when the
opportunity arises.} 21. Rc5 {freeing c4 for the White queen if Black plays ...
f5} (21. h4 f5 22. Qe3 Re7 {looks annoying for White}) 21... Re7 (21... f5 22.
Qc4 {the exchange of queens robs the Black e and f-pawns of any attacking
strength.}) 22. h4 Rd8) 21. h4 Kg7 22. Qe3 f5 23. Qg5 (23. Na7 {was even
stronger here as White also has the bonus weakness that Black's has created on
his kingside.} Rxa7 24. Bxc6 Rea8 25. Bg2 c6 26. f4 {wins the e5 pawn}) (23. h5
{immediately also looks strong as the rook on c4 can swing to h4 when White is
suddenly launching a kingside attack!}) 23... h6 24. Qd2 {White's play is
lacks a little direction at this point, but he is still making progress ...h6
has created another weakness in Black's king's position on g6, and this
introduces a very dangerous possibility for White.} Rad8 25. Qe3 (25. Bxc6 Nxc6
26. Rxc6 bxc6 27. Rxc6 Rd7 28. h5 g5 29. Qxa5 {with Qa6 to follow was very
dangerous! In effect, the weakening of Black's kingside enables White - at
minimal material cost - to install his impregnable rook on c5 one square
closer to Black's position on c6. White's material investment has ensured that
the rook is also impregnable on this square.}) 25... Ra8 (25... Rd7 {was more
logical and active, as 26.Na7 can be met by 26...Nd4}) 26. h5 g5 27. g4 {
Very thematic, but again now or on the previous move, White could win very
easily with} (27. Bxc6 Nxc6 28. Rxc6 bxc6 29. Rxc6 Rac8 30. Qa7 {threatening
either Qxa5 or Qa6 with total control of the position}) 27... e4 28. dxe4 (28.
Nd4 {was a Komodo shot I hadn't seen!} Rf8 (28... Nxd4 29. Rxc7) 29. Nxc6 Nxc6
30. gxf5 exf3 31. Rxc6 Qxe3 32. Rg6+ {wins}) 28... f4 29. Qc3+ Kg8 30. e5 Rad8
31. Rc5 {Szabo switches the White moves around in "My Best Games of Chess".
White's play isn't optimal in the coming phase (and he has already missed a
number of good chances) but he always maintains a clear advantage. The next
moment of interest occurs with a slightly hasty transposition to a pawn ending.
} Qf7 32. e6 Rxe6 33. Rf5 Qe7 34. Qc4 Rd7 35. Nc3 Kg7 36. Nd5 Nxd5 37. Bxd5 Rf6
38. Rxf6 Qxf6 39. Bxc6 bxc6 40. Qxc6 Rd1+ 41. Kg2 Rxc1 42. Qxc1 Qb6 43. Qc3+
Kf7 44. Qc4+ Kf6 45. Qb5 (45. Qe4 Kg7 46. Qe7+ Kg8 47. Qe8+ Kg7 48. Qb5 {
would have been a much improved version of this ending as Szabo points out.
Now things get very thrilling!}) 45... Qxb5 46. axb5 Ke5 47. f3 (47. Kf3 Kd4
48. e3+ fxe3 49. fxe3+ Kd5 {wins for Black according to Szabo, but it isn't
clear why!} (49... Kd3 50. e4 Kc4 51. e5 Kd5 52. e6 Kxe6 53. Ke4 {wins}) (49...
Kc5 50. e4 Kxb5 51. e5 c5 52. Ke4 Kc6 53. Kf5 Kd7 54. Kg6 Ke6 55. Kxh6 {wins})
50. e4+ Ke5 (50... Kc5 51. e5 Kxb5 52. Ke4 Kc6 53. Kf5 Kd7 54. Kg6 {wins a
tempo by threatening Kf7}) (50... Kd4 51. b3) 51. Ke3 a4 52. Kd3 Kf4 53. Kd4
Kxg4 54. e5 Kf5 55. Kd5 g4 56. e6 Kf6 57. b6 cxb6 58. Kd6 g3 59. e7 g2 60. e8=Q
g1=Q 61. Qf8+ {wins}) 47... Kd5 (47... Kd4 48. Kf2 a4 49. e3+ fxe3+ 50. Ke2 Kc4
51. Kxe3 Kb3 52. f4 gxf4+ 53. Kf3 {Szabo} Kxb2 54. g5 hxg5 {NOT with check} 55.
h6 a3 56. h7 a2 57. h8=Q+) 48. Kf2 Kd4 49. Ke1 Kc4 50. e3 (50. Kd2 Kd4 51. b3 {
was better according to Szabo}) 50... fxe3 51. Ke2 Kd4 52. b3 Kc3 53. f4 gxf4
54. g5 Kd4 {Missed by Szabo!} 55. gxh6 f3+ 56. Kxf3 Kd3 57. h7 e2 58. h8=Q e1=Q
59. Qd8+ Kc3 60. Qxc7+ Kxb3 61. b6 Qd1+ 62. Kg3 Qxh5 63. b7 {Szabo states that
Black resigned here, but Chessbase gives a few more moves.} Qg5+ 64. Kf3 Qf5+
65. Ke3 Qg5+ 66. Kd4 1-0
[Event "4NCL May"]
[Site "?"]
[Date "2017.03.04"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Sokolov, Ivan"]
[Result "1-0"]
[ECO "A65"]
[Annotator "Sadler,Matthew"]
[PlyCount "79"]
[EventDate "2017.02.20"]
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 g6 6. e4 d6 7. f3 a6 8. a4 h5
9. Bg5 Be7 10. Be3 h4 11. Qd2 Nbd7 12. Nh3 Ne5 13. Be2 Rb8 14. O-O Kf8 15. a5
b5 16. axb6 Qxb6 17. b4 Bxh3 18. bxc5 {I liked to get in this move
straightaway. I thought Black would have a better chance of holding his
queenside structure after} (18. gxh3 Ned7 {even though White is still
massively on top}) 18... Qb2 19. gxh3 {Obvious but there was a much better
move!} (19. Bh6+ {Komodo! I checked 19.Rfb1 quickly and I'd seen the idea of
Bh6+ in other lines, but I never put the 2 together!} Ke8 (19... Kg8 20. Rab1
Qxd2 21. Rxb8+ Kh7 22. Rxh8+) (19... Rxh6 20. Qxh6+ Kg8 21. Rfb1) 20. Rfb1 Qxd2
21. Rxb8+ Kd7 22. Rb7+ Kc8 23. Bxd2 Kxb7 24. c6+) 19... Qxd2 20. Bxd2 Rb2 21.
Rfd1 Nh5 22. f4 Rxd2 23. Rxd2 Nxf4 24. c6 Kg7 {The start of my reflections.
White is the exchange up with a very strong passed c-pawn. Black's
(insufficient) compensation for his material deficit is his central and
kingside dark-square control and the general looseness of White's position
(White's king is open, and many pieces are unprotected on dark-squares).
White's immediate task is to consolidate and to devise a way of pushing his
c-pawn through.} 25. Rc2 {A safe move, getting the rook off the dark squares,
protecting my loose knight on c3, providing support for the passed c-pawn and
introducing the option of Bxa6 to cover the c-pawn's queening square (which
was impossible before due to ...Nf3+ forking king and rook)} Nxh3+ {This
surprised me: Black is faced with an enormous White c-pawn and there he is
just taking a doubled h-pawn! (he'all also have to spend a tempo bringing his
knight back into play). However, it's a good practical decision. Black has
already accepted that the c-pawn will cost him his bishop, so he is planning
for the situation after this. By taking the pawn on h3, Black removes some
cover from the White king and most importantly frees the passage of his own
g-pawn with ...g5-g4-g3. It's not great, but at least it's a plan!} 26. Kf1 Nf4
27. Na4 (27. Bxa6 Ng4 28. Nd1 Bd8 {Annoyed me as} 29. c7 Bxc7 30. Rxc7 Nxh2+ {
seemed to give Black a little play. I decided to keep the bishop on e2 for as
long as possible to keep the Black knights at bay and use my otherwise
unemployed knight on c3 on b6 to force the c-pawn home}) 27... Bd8 28. Rb1 {
Activating White's extra rook and intrdoucing a number of threats: 1. c7
winning a piece without allowing Black to activate his rook on the b-file 2.
Rb8 (the main idea) preparing to win the piece AND reduce Black's attacking
force still further by exchanging off the rooks.} (28. c7 Bxc7 29. Rxc7 Rb8)
28... g5 29. Rb8 (29. c7 Bxc7 30. Rxc7 Rh6 {During the game, I gave these 2
positions (this position and the position after 28.c7 Bxc7 29.Rxc7 Rb8) some
thought. It occurred to me that if you want to have some practical chances in
a position of great material imbalance / inequality then what Ivan has done is
about perfect. First of all, Black's king is completely safe due to the
stable knight on e5 which protects the pawn on f7. This means that White
cannot exploit his material advantage (a whole rook) to finish off the game
quickly: he will have to target other weaknesses which inevitably takes longer.
Secondly, White's own king is somewhat open which means that White will
continually have to look out for checks and little tactics. Thirdly, Black
has managed to concentrate his remaing forces in a small area of the board:
the centre & kingside. By comparison, White's pieces are spread all over the
board. This means that in the short term, Black's attacking force on the
centre & kingside is not inferior to White's: he may thus have some chances to
make some immediate progress there. Fourthly, Black's pieces are entrenched
on a colour square - the dark squares - which White finds difficult to
challenge by normal means: it will take a little while before his knight
returns from a4 to e2 for example to challenge the knight on f4. Finally,
Black has a plan to increase his space advantage on the kingside with ...
g6-g5-g4. Of course, White is completely winning in both cases, but it
seemed to me that this was too little for the superiority I had in the
position. I thus decided that I should spend some effort calculating a win.})
29... Bc7 {The best try} (29... g4 30. c7 g3 31. Rxd8 (31. c8=Q gxh2 32. Bf3
Nxf3 33. Qg4+ Bg5 34. Qxf3 Rxb8 35. Nc3 {also wins easily which I hadn't
spotted during the game}) 31... gxh2 32. Bf3 Nxf3 33. Rxh2 Nxh2+ 34. Kg1 Nf3+
35. Kf2 {was the line that got me interested in calculating 29.Rb8. It
demonstrates a typical defensive technique where White is willing to give back
material (a bishop and rook!) to defuse Black's initiative.}) 30. Rxh8 Kxh8 {
Just in general, I was also very happy with the tactical connotations of this
exchange: the king is drawn to the back rank (which means White's c-pawn will
queen with check) while the king also abandons the protection of the f7 pawn
(which means that Rb7xf7 will become possible at times)} 31. Rb2 g4 32. Rb7 {
White has invested a great deal of time to push through his c-pawn while
reducing Black's attacking force: Rc2, Rb1-b8xh8, Rb2-b7. That's 6 tempi! It's
therefore not surprising that Black manages to develop some threats even if it
feels a little unfair!} h3 {This was the move that cost me the most time.
Unfortunately I had a blind spot in my calculations. When I played 27.Na4, I
had decided to keep the bishop on e2 to cover the kingside light-squares and
in my mind, the bishop was anchored on this square. The only square I
considered moving it to was a6 to support the march of the c-pawn. That
explains why the simple} 33. Kf2 (33. Bd1 {never even occurred to me.} g3 34.
Kg1 {neutralises Black's initiative without the slightest problem. A bishop,
pawn (h2) and king are easily enough to keep an attacking force of 2 knights
and 2 pawns at bay for a little while. My method was a little less elegant.}) (
33. Rxc7 g3 34. hxg3 h2 {is not good news!}) (33. Bxg4 Nxg4 34. Rxc7 {was the
first thought I had while calculating , but} Nxh2+ 35. Kg1 (35. Kf2 Ng4+ 36.
Kg3 h2 {is equally embarrassing}) 35... Nf3+ 36. Kh1 Nh5 {is mate!}) 33... Ba5
(33... Nxe2 34. Kxe2 (34. Rxc7 {even this is enough!} g3+ 35. hxg3 Nd3+ (35...
h2 36. Kg2 Ng4 37. Rb7 Nxg3 38. Rb1 h1=Q+ 39. Rxh1+ Nxh1 40. c7) (35... Ng4+
36. Kxe2 h2 37. Rc8+ Kh7 38. Rh8+ Kxh8 39. c7 h1=Q 40. c8=Q+ Kh7 41. Qxg4 Qa1 (
41... Qg2+ 42. Kd3 Qf1+ 43. Kc2) 42. Qd7) 36. Kf1 (36. Kxe2 h2 37. Rc8+ Kh7 38.
Rh8+ Kxh8 39. c7 h1=Q 40. c8=Q+ Kh7 41. Qf5+ Kh8 42. Kxd3 Qd1+ 43. Ke3 Qxa4 44.
Qxf7 {is a winning Queen and Pawn ending, but you will obviously feel that you
missed something along the way!}) 36... Ne1 37. Rc8+ Kg7 38. c7 h2 39. Rg8+
Kxg8 40. c8=Q+ Kg7 41. Qg4+ Kf8 42. Kxe1 Nxg3 43. Qxg3 h1=Q+ 44. Kd2 Qxe4 45.
Qxd6+ Ke8 46. Nc3 {is also winning}) 34... g3 35. hxg3 (35. Rb3 gxh2 36. Rxh3+
{is also good enough}) 35... h2 36. Rb1 {wins easily}) 34. Bxg4 {destroys any
remaining Black hopes} Nfd3+ {Setting a gorgeous little trap} (34... Nxg4+ 35.
Kg3) 35. Ke3 (35. Kg3 Be1+ 36. Kxh3 Nf4# {what a mate!}) 35... Nxg4+ 36. Kxd3
Nxh2 37. Nb6 Ng4 38. c7 Nf2+ 39. Ke2 h2 40. c8=Q+ {Black resigned.} (40. c8=Q+
Kg7 41. Qf5 h1=Q 42. Rxf7+ Kg8 43. Qg6+ Kh8 44. Rf8#) 1-0
[Event "4NCL Division 1c"]
[Site "Telford, ENG"]
[Date "2017.04.30"]
[Round "10.21"]
[White "Ashton, Adam G"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2360"]
[BlackElo "2680"]
[Annotator "Sadler,Matthew"]
[PlyCount "112"]
[EventDate "2017.04.30"]
[WhiteTeam "3Cs 1"]
[BlackTeam "Guildford 1"]
1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. Bd3 c5 6. c3 cxd4 7. cxd4 dxe4 8.
Nxe4 Nc6 9. O-O O-O 10. Be3 Nd5 11. a3 b6 12. Rc1 Bb7 13. Bb1 Rc8 14. Qd3 f5
15. Nc3 Bf6 16. Rfd1 Nce7 17. Bd2 Ng6 18. Ne2 Qd6 19. Ba2 h6 20. Re1 Kh8 21.
Bxd5 Qxd5 22. Rxc8 Rxc8 23. Nf4 Nxf4 24. Bxf4 Kg8 25. h3 g5 {I spent about
half of my time advantage pondering this concept (starting with the prepatory
move 24...Kg8). As I did it occurred to me that there are 3 stages to
space-gaining pawn advances. STAGE 1 occurs before the pawns move. In that
scenario, Black's pieces can act in front of the pawns and put pressure
directly against the opponent's position. For example, I could play 24...Bg5,
or try somehow bring a rook to g6, attacking g2 STAGE 2 occurs when the pawns
start to advance. Strangely enough, at that moment Black's pieces decrease in
possibilities: the advanced pawns block files and diagonals that might form
paths of attack against White's position. For example, a pawn on g5 takes away
g5 from the Black bishop and also blocks the path of a rook on g6 against g2.
STAGE 3 is the apotheosis where everything falls into place. The pawns advance
still further, driving away the opponent's pieces, causing weaknesses and
opening lines which Black's pieces can then exploit. Pretty obviously, you
don't want to get stuck at PHASE 2! Slightly less obviously, you need to
understand what piece activity you are giving up when you move from PHASE 1 to
PHASE 2. Here I felt that I wasn't losing too much. ...Bg5 didn't wow me too
much while I couldn't see my rook getting to g6 any time soon!} 26. Be5 Be7 27.
Qe3 {I spent more of my precious time advantage on my next move. White's most
obvious idea was to exchange off rooks with 28.Rc1. At first, I assumed that I
could meet that with 28...Rxc1 29.Qxc1 Bc6, blocking the c-file and preventing
White from invading on c7 with his queen. However, I suddenly became worried
by the idea of 30.Bb8 a6 31.Bc7 b5 32.Bb6 when White establishes a second
dark-square outpost (c5) around his d-pawn. It felt like a concession to me.
I did think of a move like 27...Qc4 to prevent Rc1, but I was not happy at
disrupting my battery along the a8-h1 diagonal which kept the knight pinned to
f3. For that reason, I came up with the plan in the game which aimed to
exchange rooks on my terms: I played ...a5 (which avoids Bb8 gaining a tempo
in the future) and then offered the exchange of rooks on c6. After 29.Rxc6, I
replied 29...Qxc6, covering the c7 square (and thus preventing Bc7 attacking
b6) while also taking control of the c-file.} a5 28. Rc1 Rc6 29. Rxc6 Qxc6 {
What was my evaluation of this position? Strangely enough, I don't think I
ever got around to an objective analysis of the position's features: my
evaluation was shaped by a series of practical / emotional factors: 1. I was
more than 300 elo points higher rated than my opponent. 2. I had a
significant time advantage. 3. White had taken on an IQP from the opening,
offering a structural weakness in return for activity which normally manifests
itself in an attack against the Black king. This attack had not materialised
and White had needed to exchange a large number of pieces (thus eliminating
remaining hopes of a kingside attack) and to concede the bishop pair to Black
to keep himself standing. The rating difference, the time factor and the
flow of the game imbued me with the feeling that I would be extremely
disappointed if I did not convert the position. It was an understandable
feeling, but I'm not convinced it was the perfect mood for patiently growing
Black's small advantage into a more serious one. I don't think it affected the
moves I played too negatively, but this "background noise" of impatience and
expectation cost me unecessary energy as I calculated and reasoned my way to
the gradual constriction of my opponent's position. It is important to
understand what you expect from a position, as the belief that you should be
winning a position is often an enabler to finding hidden resources. However,
if that belief masks an objective appraisal of the position it can make you
vulnerable to overpressing or overreaction when the nature of the position
suddenly changes (for example if you lose control slightly, or if the task
appears more complicated than you thought). Looking back, I would have
preferred simply to have acknowledged my feeling and its motivation to myself,
and then put it aside and focussed on the position. I think that would have
enabled me to play with more fluency than I did in the remaining part of the
game. Although I'm reasonably satisfied with my strategy, I definitely should
have played much quicker. It wasn't important in this game, but in another
game it might be. What was my plan? While thinking about my 24th move, I came
up with the following general approach / reasoning: Due to Black's 14th move
14...f5, White can entrench himself in the centre by placing a minor piece on
the outpost on e5. I decided that I would rather White placed his bishop
rather than his knight on e5. In fact, I would encourage White to play Be5 by
hitting his bishop on f4 with ...g5 as quickly as possible. It sounds a little
strange - after all, the bishop looks good on e5, supporting the pawn on d4
and supported by it, while assisting the White queen in an attack either
against the kingside or the queenside - but I was envisaging the following
scenario: A. White exchanges off rooks to neutralise Black's control of the
c-file B. Black brings his king to the queenside (most likely d7 which covers
c7 and helps to prevent both Qc7 and Bc7) C. Black exchanges off queens D.
Black's king invades through the queenside light squares (c6-d5-c4 / c6-b5-a4)
The bishop on e5 only covers dark-squares so the Black king can easily dance
his way around it into White's weak queenside light-squares. However, put a
White knight on e5, and the Black king's access to d7 and c6 is blocked. So
the general plan was to 1. Force the White bishop to e5 / prevent the White
knight from coming to e5, take care that White doesn't get to neutralise my
bishop pai by exchanging my dark-squared bishop (the point of 24...Kg8) This
meant that my queen and bishop battery on the a8-h1 diagonal was holy for me.
I would not contemplate breaking it up until White had made f3 inaccessible
for his knight (as happened in the game after Ne1 and f3) 2. Avoid gettting
my king mated on the kingside by a White queen / Be5 combi by bringing the
Black king to the queenside 3. Improve Black's position to the maximum for
the future exchange of queens by gaining space on the kingside (maybe fixing
White's kingside pawns on g2 and h3 with ...h4) 4. Either free the queenside
light-squares for entry by Black's king by exchanging off queens, or gain
piece territory if White refuses. 5. Constrict White's position further by
advancing pawns on queenside to gain space there. I had a wonderful Alekhine
30-move plan feeling as I constructed this grand scheme, and that feeling is
strengthened when you consider that it all pretty much came to pass! However,
during the game I encountered a lot of technical hobbles, and those multiplied
when testing my ideas against the engine! My opponent deserves a lot of credit
as he found an excellent defensive setup: just a little more persistence in
his scheme and he would have had good chances for a successful defence.} 30.
Qe2 {A sneaky little move, prefacing the redeployment of the knight with Ne1
by bringing the queen into contact with the d1-h5 diagonal. After Ne1, White
will be threatening a counter-attack against the Black king with Qh5-g6+!} (30.
d5 {I assumed that} Qxd5 (30... exd5 31. Bd4 {looked plain wrong: even if I
manage to exchange the dark-squared bishops, then White will have great
compensation due to his blockade on d4 and Black's vulnerable kingside pawns.})
31. Qxb6 {was too risky for White as the bishop on e5 is now very loose
without the support of the d4 pawn. However, the engine holds things together:}
Kf7 (31... g4 32. hxg4 fxg4 33. Qc7 gxf3 (33... Kf7 34. Ne1) 34. Qxe7 Qxe5 35.
Qxb7 Qe1+ 36. Kh2 Qxf2 37. Qc8+ {with perpetual}) 32. Bc3 Bd8 {keeps a little
edge for Black due to his 2 bishops - and his battery along the a8-h1 diagonal
in particular. Black will tie down the White queenside with ...a4 and try and
activate his king and centre.}) 30... Kf8 {The logical continuation of my plan,
and it wasn't difficult to see that it worked. However, I was tickled pink
when I noticed one tactical detail.} 31. Ne1 Ke8 32. f3 {Best to continue the
regrouping of the White knight, but I was also happy to see it from a
practical point of view. I no longer needed to worry about counterplay against
my airy kingside by the White queen, which meant one parameter less to keep in
my thoughts! Around this point, the game has an interesting psychological
undercurrent. The question is: should White exchange queens or not? That may
seem an odd question as part 4 of my grand design is to offer the exchange of
queens in order to invade with my king on the queenside. However, note that
part 3 of my plan is to improve my position to the maximum degree before doing
so. For example, looking at the current position, I might want my h-pawn on h4
- fixing White's kingside pawns on g2 and h3 as prey for my light-squared
bishop if White's king were to move to the queenside - and my king on d7 -
ready to invade the queenside as quickly as possible after the exchange of
queens. If White exchanges queens immediately, he will most likely get the
best version of this ending he can ever get, perhaps gaining chances to inhbit
Black's plans. For example, after the exchange of queens, White might be able
to play a quick g4 and fix Black's h6 pawn as a weakness to be attacked with
Bg7. So many doubts run through your mind as the defender: it's the best
version I can get of this ending... but is it good enough? Psychologically
also, it's a little easier to play positions with queens on. There is always
the hope of sudden, unexpected counterplay in which - for example - White
sacrifices his knight to draw Black's queen out of position allowing White to
give perpetual with his queen (see the variation after 32.Qh5 instead of 32.f3
for such an attempt). In some ways, you feel that playing the position without
queens requires a higher and more constant level of accuracy in defence
whereas one clever manoeuvre with your queen could compensate for earlier
suboptimal play. Objectively, I feel that keeping the queens on is a good
defensive decision as long as your own king is safe. If your king is exposed
to rapid attack, any attempts to break out for a perpetual are doomed to
failure. As soon as your queen moves away from your king, you'll be mated
before you give your first check! If your own king is safe, that can give you
a crucial extra couple of moves to get your play going. In this position,
White has a cosy hideout on h2 for his king so I think that White is justified
in keeping the queens on. Moreover, his bishop on e5 is invulnerable on e5:
the only piece that White really has to worry about when Black starts to
squeeze, is his knight. Would I have been annoyed if White had exchanged off
queens in the next couple of moves? To be honest, no. I saw it as something I
couldn't avoid, and moreover I had done some excellent preparation for the
eventuality by bringing my king to the queenside. I couldn't do any more so I
was ready to let it happen. My efforts in the next few moves were therefore
concentrated against a possibility I found much more worrying: the possibility
that White might transfer his knight to e5 via d3.} (32. Qh5+ Kd8 33. Qf7 {
was the main line I needed to check} Qc1 34. Bf6 Qxe1+ 35. Kh2 {White gives up
a piece for the chance of perpetual check} Bxf6 36. Qxf6+ Kc7 37. Qe7+ {
If Black's pawn was still on a7, then this position would actually be drawn:
Black could not avoid the perpetual after 37...Kb8 38.Qd6+ or 37...Kc6 38.Qe8+.
However, due to the excellent move 27...a5, the Black king now has a hiding
place on a7! I really would have been Alekhine if I'd spotted this tactic when
playing 27...a5!} Kb8) 32... Qa4 33. Nc2 (33. Nd3 Ba6 {was my idea. The reason
for 32...Qa4 was that I wanted to avoid committing my king to d7 until I had
averted the threat of Nd3 to eliminate any chance of getting hit by Nc5+ or
Ne5+ ideas. The other idea of course was to drop my queen onto that nice soft
square on b3}) 33... Qb3 (33... f4 {to stop Ne3 did occur to me but then} 34.
Qd3 {is awkward, demonstrating the value of kieeping the queens on. A small
hole, and the queen is ready to wriggle its way towards the Black king!}) 34.
Ne3 Kd7 {Safe I thought, as White no longer has Nd3-e5...} 35. Kh2 {White has
found an excellent defensive structure, I appreciated the value of 35.Kh2 but
the strength of White's knight manoeuvre Ne1-c2-e3 eluded me. I wrongly -
though understandably - saw the post on e3 as a poor second alternative once
the desired Nd3 had been thwarted. What is so good about e3? As I mentioned
earlier, White's greatest desire would be to place his knight on e5 - a
central dark square - from where the knight exerts influence over central,
kingside and queenside light-squares (c6,d7,f7,g6). Well, from e3, the knight
is also in contact with a number of important light squares and performs both
attacking and defensive duties: 1. The knight supports the break d4-d5 and
also dissuades the reply ...exd5 as the f5 pawn is hanging 2. The knight
protects against the Black kingside break ...g5-g4 3. The knight eyes the
square c4 from where it attacks the Black queenside pawns (a5,b6) and comes
within reach of the e5 outpost again. I dismissed this last scenario as pretty
unrealistic though: as soon as the knight came to c4, I would chase it away
(or even win it) by attacking it with my light-squared bishop. In general,
the knight seems to combine excellently with the bishop on e5 (which covers
and protects dark squares on all areas of the board). What I hadn't realised,
is that White has a window of opportunity in which he can also throw his queen
into the mix and generate serious threats against Black's position.} (35. Nc4
Bd5 (35... Ba6 36. Nxa5) 36. Ne3 Bc6 {wins a tempo for Black as} 37. Nc4 Bb5
38. Nxb6+ Kc6 {wins a piece}) 35... Bc6 {A creeping move, preparing ...Bb5 and
...Qd3 and ready to meet Nc4 with ...Bb5 winning the knight as above. I just
had to calculate one variation and that was another of White's attempts to get
perpetual by sacrificing his knight:} 36. Qd2 (36. Qa6 Qxe3 37. Qa7+ Ke8 38.
Qb8+ Bd8 {covers adequately} (38... Kf7 39. Qc7 {gives good chances to draw
due to the dual threat of Qxc6 and Bd6}) 39. Bf6 (39. Bc7 Qxd4) 39... Qf4+)
36... h5 {When I played this move, I wondered a little about} (36... Bd8 37.
Qc1 Bb5 {is the idea, covering c7 and preventing Nc4. However, White also
resources here:} 38. d5 f4 39. Ng4 {The key resource! If only Black had played
...h5, oh wait...} Qxd5 (39... exd5 40. Bd4 {is very awkward for Black. Ne5+
is coming and after} Bc7 41. Qe1 {Black's king is not happy}) 40. Nf6+ Bxf6 41.
Qc7+ Ke8 42. Bxf6 {is better for White}) 37. Qe2 {This is White's first poor
move in this phase: it gives Black the opportunity to organise his pieces to
prevent White's plan of Nc4. After that has happened, White's defensive task
is considerably less joyful.} (37. h4 {which was a move that Adam also
mentioned during our chat after the game. With this move, White opens an
invasion channel for his queen cia the c1-h6 diagonal which gives White
another way to attempt a knight sacrifice leading to a saving perpetual. It
does weaken the White king slightly, but not dramatically. I was planning} gxh4
{but Komodo is completely unimpressed claiming equality after} 38. Nd1 {
followed by Nc3 and Qh6-g7 to follow whenever Black moves his queen from b3}) (
37. Qc1 {However barely registered in consciousness. It is however a very good
move! First of all, what is White's threat if I play a typical move like 37...
h4? I couldn't find anything good for White so I wondered whether I should
have played 36...h5 and whether the prophylatic 36...Bd8 would have been
stronger.} Bd8 {was my standard assumption against any White queen pressure on
the c-file. However, it's not that good!} (37... h4 38. d5 Bxd5 (38... exd5 39.
Nxf5) 39. Qc7+ Ke8 40. Qc8+ Kf7 41. Qh8 Qxe3 42. Qh5+ Kf8 43. Qh8+ {with
perpetual check, and White has sacrificed his knight successfully this time!})
(37... f4 38. Nc4 {is again fine for White:} Bd5 39. Nd2 {followed by Qc7+})
38. Nc4 {with the very unpleasant idea of withdrawing White's bishop to make
way for the knight on e5. A careless move like} Bd5 39. Nd6 Bc6 40. Nf7 Be7 41.
Bf4 {leads to a completely winning position for White! As you can see, White
has serious chances to create counterplay with the queens on. Even if the line
with 37.Qc1 didn't work directly, White would have other ideas such as 37.h4
to wear away fresh entry paths into Black's position. While I was playing
the game, I was aware as I pushed my pawns to gain space that I was giving
myself a huge area of territory to defend with Q, 2Bs and K and I was
constantly on the lookout for invasion possibilities for the White queen.
Looks like I didn't manage to cover them all!}) 37... Bb5 38. Qd2 Bc6 39. Qe2
Bb5 40. Qd2 Qd3 41. Qc1 {I felt that 41.Qxd3 was perhaps the most sensible as
Black's queen is monstrously strong on d3. However, Black's pieces and pawns
are better-placed than a few moves ago so it would definitely feel as slight
defeat for White.} Bd8 42. Nd1 h4 {This felt good from a practical point of
view: now White could no longer open kingside lines for his queen with h4.
However, Komodo hates it suggesting returning with 43.Ne3, the point being
that ...f4 is no longer a Black possibility as ...h4 has abandoned control of
the g4 square. I wasn't too worried - well I hadn't realised how good the
defensive structure with Ne3 was! - but Komodo thinks I won't find a way
through without this resource!} (42... Qf1 43. Qd2 Qe2 {forcing the exchange
of queens was something I seriously considered, but I felt that I could
extract a few more concessions by keeping the queens on for a few more moves.})
43. Nc3 {This felt wrong as the knight blocks the c-file while it will
eventually be a target for Black's pawn advance ...b5-b4. I'm not quite sure
why I didn't immediately play 43...Bc4 now. Possibly I saw a few ghosts,
probably I also got a bit interested in possibilities of ...g4. In any case, I
fiddled around for a little while here before starting off again on the
correct plan.} Bc6 44. Qe1 Be7 45. Qf2 Bd8 {d4-d5 was threatened exploiting
the now unprotected pawn on b6 so I simply retrace my steps. My bishop is
slightly more active on e7 than on d8 so I would prefer to have it there, but
safety is everything!} 46. Kg1 Bb7 47. Kh2 Ba6 {Heading for c4 now} 48. Kg1 Bc4
49. Kh2 Kc6 {It was a little nerve-wracking playing this move when White's
queen was on c1, but now it feels very safe with White's queen on the kingside.
I decided that I needed the king on b7 if I wanted to advance ...b6-b5. With
the king on d7, White might answer ...b6-b5 with d4-d5 followed by Qa7+! I
had the funniest feeling during the ending that the core of the battle was
between the White queen and the Black king. If felt almost like the technique
of distant opposition that you see in King and Pawn endings. I was constantly
reshuffling my king, either to get out of range of the White queen, or to
restrict the White queen's range. With every pawn move, a new evaluation of
this opposition had to be made!} 50. Qe1 Kb7 51. Qc1 b5 {I was playing pretty
quickly and fluently by now. The engine still claims just -0.49, but the
strain on a human of defending such a position is pretty high. Worried of
finding himself without a square for his knight, Adam now made an error of
judgement.} 52. Kg1 Bb3 53. Kf2 {The engines' evaluation of White's position
drops enormously after this move from -0.7 (slight to clear edge for Black) to
-2.29 (completely winning for Black) and to be honest, that was exactly my
feeling at the board. If you think back to my comments to move 32, I said that
White can consider keeping the queens on because his king is safe. With 53.Kf2,
White brings his king closer into the firing line, and the firepower of queen
and 2 bishops is not to be underestimated. As well as restricting White's
pieces, Black now gains tactical opportunities against the White king to boot.}
b4 54. axb4 axb4 55. Ne2 Bc4 56. Qe3 Qc2 {Black will just pick up the b-pawn
and then push his own. It took a while, but that completed Guildford's 8-0
victory against the 3C's!} 0-1
[Event "URS-ch22"]
[Site "Moscow"]
[Date "1955.02.25"]
[Round "9"]
[White "Averbakh, Yuri L"]
[Black "Botvinnik, Mikhail"]
[Result "0-1"]
[ECO "C15"]
[Annotator "Sadler,Matthew"]
[PlyCount "130"]
[EventDate "1955.02.11"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "URS"]
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd3 dxe4 5. Bxe4 Nf6 6. Bd3 c5 7. dxc5 Nbd7 8.
Bd2 Nxc5 9. Bb5+ Ncd7 10. Nf3 a6 11. Bd3 O-O 12. O-O b6 13. Ne4 Be7 14. Qe2 Bb7
15. Rad1 Qc7 16. Bg5 Rfe8 17. c4 Rad8 18. Rfe1 h6 19. Nxf6+ Nxf6 20. Bh4 Bb4
21. Rf1 Qc6 22. Bc2 Be7 23. Bxf6 Bxf6 24. b3 g6 25. Rxd8 Rxd8 26. Rd1 Rxd1+ 27.
Bxd1 {Here we are!} e5 28. Ne1 e4 29. Nc2 Qd6 30. Ne3 Qd4 {Centralisation of
the Black queen.} 31. Nd5 Bg5 32. g3 f5 33. h4 Bd8 {A bishop on the back rank
covers squares on both sides of the board} 34. Bc2 Kf7 {Bringing the king
closer to the centre, ready to invade after the exchange of queens.} 35. Qd1
Qxd1+ 36. Bxd1 Ke6 37. Nf4+ Kf6 38. Kf1 g5 {Expansion on the kingside gaining
space} 39. hxg5+ hxg5 40. Nd5+ Ke5 41. a4 Kd4 42. Be2 Bc8 43. Kg2 Bd7 44. Kf1
Be8 45. Kg1 Bf7 46. Kg2 a5 47. Kf1 f4 48. gxf4 gxf4 49. Nxf4 Kc3 50. Bd1 Kd2
51. Bg4 Kc2 52. Be6 Bxe6 53. Nxe6 Be7 54. Nd4+ Kc3 55. Nf5 Bf8 56. Ng3 Kxb3 57.
Ke2 Kxa4 58. Nxe4 Kb3 59. Kd3 a4 60. Nd2+ Kb2 61. c5 b5 62. c6 Bd6 63. Ne4 Bb8
64. Nc3 a3 65. f4 Bxf4 0-1
[Event "URS-ch22"]
[Site "Moscow"]
[Date "1955.03.11"]
[Round "17"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Botvinnik, Mikhail"]
[Result "0-1"]
[ECO "A05"]
[Annotator "Sadler,Matthew"]
[PlyCount "152"]
[EventDate "1955.02.11"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "URS"]
[SourceTitle "URS-ch"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 d6 8. c3
Ne8 9. Qe2 Nc7 10. Nb3 b6 11. Rd1 Ba6 12. Bg5 h6 13. Be3 Kh7 14. Qc2 e5 15. d4
Qe7 16. d5 Nb8 17. a4 Nd7 18. a5 b5 19. Nxc5 Nxc5 20. Bxc5 dxc5 21. d6 Qd7 22.
dxc7 Qxc7 23. c4 b4 24. Nd2 Rad8 25. Nb3 Bf6 26. Bf1 Bb7 27. f3 Bg5 28. Qf2 Be7
29. Be2 Kg7 30. Rxd8 Rxd8 31. Rd1 Rxd1+ 32. Bxd1 {Here we are!} Bc8 33. Qd2 Be6
34. Be2 Bg5 35. Qd3 f5 36. Kf2 f4 37. g4 h5 38. h3 Be7 39. Ke1 Bh4+ 40. Kf1 Qe7
41. Qd1 Qc7 42. Qd2 Be7 43. Kg2 Qc6 44. Nc1 Qc7 45. Nb3 Bf7 46. Bf1 Kf8 47. Be2
Qc6 48. Nc1 Qc7 49. Nb3 Ke8 50. Qd1 Be6 51. Kf1 Bd8 52. Kg2 Be7 53. Kf1 Kf7 54.
Kg2 Kf6 55. Qe1 Qd7 56. Qf2 Qd6 57. Bf1 Qc7 58. Qd2 Qc6 59. Qf2 Bf7 60. Qh4+
Ke6 61. Qf2 Kd6 {Note the transfer of the king to the queenside where it
assists in the covering squares that the rest of Black's forces cannot} 62. Be2
Kc7 63. Bf1 Kb8 64. Qd2 Kc8 65. Qf2 Qa4 66. Nxc5 Qxa5 67. Nd3 Bxc4 68. Qc2 Qc7
69. Qa4 hxg4 70. hxg4 a5 71. Qe8+ Kb7 72. Qxg6 Bd6 73. Nc5+ Qxc5 74. Bxc4 Qxc4
75. Qxd6 Qe2+ 76. Kg1 Qe1+ 0-1
[Event "EU-Cup 23rd"]
[Site "Kemer"]
[Date "2007.10.09"]
[Round "7.1"]
[White "Sebag, Marie"]
[Black "Haba, Petr"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2509"]
[BlackElo "2525"]
[Annotator "Sadler,Matthew"]
[PlyCount "75"]
[EventDate "2007.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "TUR"]
[SourceTitle "CBM 121"]
[Source "ChessBase"]
[SourceDate "2007.11.14"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.14"]
[SourceQuality "1"]
[WhiteTeam "Liege"]
[BlackTeam "Novy Bor"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "CZE"]
1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Be2 Be7 7. O-O cxd4 8.
cxd4 Nc6 9. Nc3 Qd6 10. Nb5 Qd8 11. Bf4 Nd5 12. Bg3 O-O 13. Bc4 a6 14. Bxd5
axb5 15. Be4 Nb4 16. Qb3 f5 17. Bb1 Nd5 18. Be5 Bd7 19. Bd3 b4 20. Qd1 Bc6 21.
Re1 Qe8 22. Bc4 Bf6 23. Qd2 Kh8 24. Bb3 Qe7 25. Bg3 Rfd8 26. Ne5 Ba4 27. Bc4
Rac8 28. Rac1 Be8 29. Nf3 h6 30. Bxd5 Rxc1 31. Rxc1 Rxd5 32. Rc7 Rd7 33. Rxd7
Bxd7 {And here White achieved something I carefully avoided with 24…Kg8
before 25…g5: the exchange of bishops!} 34. Be5 Bg5 35. Bf4 Bf6 36. Be5 Kh7
37. Qf4 b3 38. axb3 1/2-1/2
[Event "Bugojno"]
[Site "Bugojno"]
[Date "1978.02.27"]
[Round "2"]
[White "Larsen, Bent"]
[Black "Balashov, Yuri S"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2620"]
[BlackElo "2590"]
[Annotator "Sadler,Matthew"]
[PlyCount "81"]
[EventDate "1978.02.26"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "YUG"]
[EventCategory "14"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. b3 Bb7 5. Bb2 Be7 6. e3 O-O 7. Be2 Re8 8. O-O
a6 9. d4 d5 10. cxd5 exd5 11. Ne5 Bd6 12. f4 c5 13. Na4 Nbd7 14. Rc1 Rc8 15.
Bf3 Nf8 16. dxc5 Bxc5 17. Nxc5 bxc5 18. Qd2 Qb6 19. Qc3 Rc7 20. Ng4 N8d7 21. b4
Rec8 22. Nxf6+ Nxf6 23. bxc5 Rxc5 24. Qd2 Rxc1 25. Rxc1 Rxc1+ 26. Qxc1 Ne4 27.
Bd4 Qb5 28. h3 Bc6 29. Kh2 f6 30. Be2 Qb7 31. Qa3 Bb5 32. Bg4 {White has room
for his pieces in front of his kingside pawns, and he make powerful use of it
in this situation. If you compare with the course of my game later, Black
cannot hide his king safely away with ...h6 and ...Kh7 (Bf5+ will follow for
example) and so Black feels the need to bring his king towards the centre. But
just as with my game, the king runs into the crossfire of White's queen and 2
bishops.} Kf7 33. Qa5 Ke7 34. Bf5 g6 35. Qb4+ Kf7 36. Bxe4 dxe4 37. a4 Bc6 38.
Qd6 Bxa4 39. Qxf6+ Ke8 40. Qh8+ Kd7 41. Qxh7+ 1-0
[Event "4NCL May"]
[Site "?"]
[Date "2017.04.30"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Turner, Matthew"]
[Result "1/2-1/2"]
[ECO "A22"]
[Annotator "Sadler,Matthew"]
[PlyCount "46"]
1. c4 Nf6 2. Nc3 c6 3. e4 e5 4. Nf3 Bb4 5. Nxe5 O-O 6. Nd3 Bxc3 7. dxc3 Nxe4 8.
Be2 d6 9. O-O Na6 10. f3 Nf6 11. Bg5 Re8 12. Nf2 h6 13. Bh4 g5 14. Bg3 Nh5 15.
f4 Nxg3 16. hxg3 gxf4 17. gxf4 Nc5 18. Bf3 Bf5 19. b4 Ne6 {In this position, I
was worried that Black was about to organise his position by playing his queen
to f6, withdrawing his knight to g7 and then doubling on the e-file. As I
began to ponder, this turned from a thought into something of an obsession and
narrowed the scope of my thinking enormously. The only way I could see to
dissuade ...Ng7 was to attack the Black bishop on f5 with 20.Be4. The idea is
that Black isn't ready to support his knight on f5 after 20...Ng7 21.Bxf5 Nxf5.
As soon as I had this idea, I noticed Black's possibility of 20...Nxf4, not
backing down but sacrificing a piece. Intuitively, I felt that Black should
find enough counterplay in this way and the thought popped into my head "That
must be it, that must be how Black has to play". I started to calculate 20...
Nxf4 21.Bxf5 and after a little time spent trying things out in my head, I
stumbled on 21...Ne2+ 22.Kh2 Re3. Black's idea is simply to triple on the
e-line with ...Qe7 and ...Rae8 and then use his dark-squared threats such as ..
.Qe5+ and ..Ng3+ to force perpetual, or regain material. Komodo awards me 0.
00 for the idea so I guess that I was right! However, it was complicated and
unclear enough to be worth the gamble and I felt anyway that White should be
fighting to wrest control of the position from Black. The fact that I'd found
a decent way for Black to continue (which I'd expected in this position)
convinced me that this must be the ONLY way that Black could play. After
spending 30 mins on 20...Nxf4, I must have spent all of 30 seconds checking
other ideas before whipping out 20.Be4.} 20. Be4 Qf6 {Played after a couple of
minutes' thought. I think it was that fact that confused me. I was still in
the train of thought of my 30-minute think about 20.Be4 and instead of
blinking, stepping back and assessing the situation afresh, I simply added 20..
.Qf6 to my train of thought: "Oh he hasn't seen / hasn't dared to play 20...
Nxf4. He's played so quickly, he's obviously missed that I can play 21.Qxd6
and meet 21...Rad8 with 22.Qe5! Great, gamble succeeded! Play"} (20... Nxf4 21.
Bxf5 (21. Qf3 Qg5 (21... Bxe4 22. Nxe4) 22. Bxf5 Ne2+ (22... Qxf5 23. Ng4) 23.
Kh2 Re3 24. Qg4 Ng3 25. Bc8 Nxf1+ 26. Rxf1 {is the magic idea, keeping Black
bottled up via this amazing pressure against the queenside pawns! So I didn't
calculate 20...Nxf4 well at all either. If I'd spotted 21.Qf3, I'm sure I
would have spotted 20...Qf6 and 21...Qxc3 too: I would have been on the alert
for better moves.}) 21... Ne2+ 22. Kh2 Re3 (22... Qh4+ 23. Nh3 Qg3+ 24. Kh1 Qe5
25. Bd3 Ng3+ 26. Kg1 {is a bit better for White} Nxf1 27. Qg4+) 23. Nh3 Qe7 {
Threatening perpetual with ...Qe5+ followed by ...Ng3-e2+} 24. Bd3 {To get the
bishop safe} (24. Rf2 Qe5+ 25. Kh1 Ng3+ 26. Kg1 Nxf5) 24... Qe5+ 25. Kh1 Ng3+
26. Kg1 Nxf1 27. Qg4+ Qg7 28. Qxg7+ Kxg7 29. Bxf1 Rxc3 {The difference. Black
should be fine as the White minor pieces have little scope and Black already
has 2 pawns.}) (20... Ng7 21. Bxf5 Nxf5 22. Qd3 {and the knight is very
uncomfortable on f5 as} Qf6 23. Ng4 Qg6 24. Qxf5 {wins a piece}) 21. Qxd6 (21.
Qf3 {Threatening g4} Ng7 {This was the idea I didn't want to allow. Black
intends to mobilise his rooks with ...Re6 and ...Rae8 and stabilise the
kingside with ...Qg6 and ...h5. I looked at a couple of ideas and felt I was
on the wrong side of the tactics and I would be unable to make much impact on
Black's position. The general conclusion is correct, although as I discovered
later in the train, the tactics are much closer than I'd realised!} (21... Kh8
22. g4 (22. Bxf5 Qxf5 23. Rad1 (23. Ne4 Nd4) 23... Qxf4 (23... Rad8 24. Ne4 d5
25. cxd5 cxd5 26. Ng3 Qf6 27. Nh5 Qf5 28. Rfe1 {looks pleasant for White}) 24.
Ne4 Qxf3 25. Rxf3 Re7 26. Nxd6 Ng5 {is a little edge for White, though Black
should be fine}) 22... Rg8 {threatening ...Bxg4, Nxg4 ...Rxg4+, Qxg4 ...Rg8
winning the queen}) 22. g4 (22. Rae1 Qg6 {is just solid for Black} 23. g4 Bxe4
24. Nxe4 f5) 22... Bxe4 (22... Qg6 {is also good, threatening ...Bxe4 and ...f5
} 23. Bxf5 Nxf5 24. Rae1 h5 25. g5 Re6 {is fine for Black}) 23. Nxe4 Qg6 24. f5
Nxf5 25. Rae1 (25. Qxf5 Rxe4) 25... Re5 (25... d5 {is also strong}) 26. Kh2 Nh4
27. Nf6+ Kg7 28. Qg3 (28. Qf2 Rxe1 29. Qxe1 Qc2+ 30. Qf2 Nf3+) 28... Nf5 {
Took me a while to spot this!} 29. Rxf5 (29. Nh5+ Qxh5+) 29... Rxf5 30. gxf5
Qxg3+ 31. Kxg3 Kxf6) 21... Qxc3 {Thump. A stunning resource. It took me about
30 seconds to realise what was happening. Rather embarrassingly, I think I
even looked in a very confused way at Jonathan Parker (the Barbican 2nd board)
who was following the game with some interest (in all fairness, he looked
confused too!)} 22. Rac1 (22. Bxf5 Rad8 23. Qe5 Nd4 {Aaagh, it's coming there!}
24. Qa5 (24. Qf6 Ne2+) 24... b6 25. Qxa7 {I weighed this up quickly during the
game, but I couldn't believe I'd get any more than perpetual, with the big
risk that I wouldn't!} Nxf5 26. Qxb6 Ng3 {looks so scary for White. Komodo
starts off at 0.00 but play a few aggressive moves and he zooms right down! I
decided it was time to take the edge off the position and settle in for a grim
hold.}) 22... Qg3 23. Qd3 Qxd3 {and my opponent offered me a draw which I was
happy to accept} (23... Qxd3 24. Bxd3 Bxd3 25. Nxd3 Rad8 {is a very pleasant
advantage for Black. White will need to play very accurately in the next few
moves to stop Black's pieces invading on the 2nd rank (with ...Nd4 as a
constant irritation). Funnily enough, I played through the game again slowly
a week ago after having bought the latest version of the Komodo engine, and I
suddenly saw that he was screaming for 21.Qf3 after 20.Be4 Nxf4. What can I
learn from this? At the very least, that after a long think, you have to have
the discipline to reset your thoughts if the opponent plays an unexpected move
quickly. Otherwise, you risk following an erroneous reasoning to a very
unfortunate conclusion as I did!}) 1/2-1/2
[Event "BPB Limburg Open"]
[Site "chess24.com"]
[Date "2017.06.03"]
[Round "3.3"]
[White "Frischmann, Rick"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2304"]
[BlackElo "2684"]
[Annotator "Sadler,Matthew"]
[PlyCount "70"]
[EventDate "2017.??.??"]
[WhiteTeam "Germany"]
[BlackTeam "England"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "ENG"]
[WhiteClock "0:04:51"]
[BlackClock "0:33:25"]
{[%mdl 8192]} 1. e4 e6 (1... c5 2. Nf3 e6 (2... d6 3. d4 cxd4 4. Nxd4 Nf6 5.
Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O b4 9. Na4 Bd7 10. Be3 Nc6 11. f3 Be7 12. Rc1
Rb8 13. c4 bxc3 14. Rxc3 Na5 15. Bc2 e5 16. Nf5 Bxf5 17. exf5 O-O 18. f4 exf4
19. Bxf4 Rc8 20. Rg3 {½-½ (20) Lautier,J (2625)-Sadler,M (2660) Tilburg 1998
What did Vishy mean? In some ways, the pawn on f5 is very impressive. It
dissuades Black from playing ...g6 which can be useful if White can exert
pressure against g7. Moreover, if White can advance a pawn to g5, then the f-
and g-pawns support each other in a subsequent thrust against the pawns in
front of the Black king. However, the pawn on f5 also gets in the way of
White's pieces. Look at that light-squared bishop! Without the pawn on f5, it
would be giving the Black king a very unpleasant itch on h7! Think about the
rook on f1: without the pawn on f5, it would be putting pressure against the
knight on f6 (which defends the pawn on h7). From an attacking point of view,
you'd give anything to be able to pick up the pawn and hand it to Black!
Because the f-file is blocked, Black's knight feels pretty safe on f6 which
means that the squares that White has most weakened by moving the f-pawn from
f2 to f5 - the e4 square and then the a7-g1 diagonal / f2 square - are easily
within Black's reach. A remark about White's reduced king safety was part of
Vishy's follow-up sentence after I'd replied non-commitally to his first
comment!}) 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 d5 9.
cxd5 exd5 10. exd5 Nb4 11. Be2 Bc5 12. O-O O-O 13. Bf3 Bf5 14. Bg5 Re8 15. Qd2
b5 16. Rad1 Nd3 17. Nab1 h6 18. Bh4 b4 19. Na4 Bd6 20. Bg3 Rc8 21. b3 g5 22.
Bxd6 Qxd6 23. g3 Nd7 24. Bg2 Qf6 25. a3 a5 26. axb4 axb4 27. Qa2 Bg6 28. d6 g4
29. Qd2 Kg7 30. f3 Qxd6 31. fxg4 Qd4+ 32. Kh1 Nf6 33. Rf4 Ne4 34. Qxd3 Nf2+ 35.
Rxf2 Bxd3 36. Rfd2 Qe3 37. Rxd3 Rc1 38. Nb2 Qf2 39. Nd2 Rxd1+ 40. Nxd1 Re1+ {
0-1 (40) Karpov,A (2720)-Kasparov,G (2700) Moscow 1985}) 2. d4 d5 3. Nd2 Be7 4.
Bd3 c5 5. dxc5 Nf6 6. Qe2 O-O 7. Ngf3 a5 8. O-O Na6 9. e5 Nd7 10. c4 Naxc5 11.
Bc2 {last book move} b6 12. Nd4 Ba6 13. Nc6 Qe8 14. Re1 f5 15. Nxe7+ Qxe7 16.
b3 Nb8 17. Qe3 Nc6 18. cxd5 exd5 19. Nf3 Nb4 20. Bb1 f4 21. Qd2 Nbd3 22. Bxd3
Nxd3 23. Rd1 Rac8 24. Bb2 {We'll start getting into the game from this
position. After a fraught period a few moves earlier, I felt that it was my
turn now to make the running.} Rf5 {I felt my first task was to forestall
White's attempts to exchange my beautiful knight on d3 with Ne1. 24...Rf5
achieves this goal for now, and also supports 2 goals on the kingside: 1. The
advance of my g-pawn with ...g7-g5-g4 2. The transfer of the rook to h5,
attacking h2.} 25. Bd4 {Ne1 is again on the agenda, as ...Nxb2 is no longer
possible. Moreover my loose pawn on b6 is under attack.} (25. Ne1 Nxb2 26. Qxb2
Qxe5 (26... Rxe5 {both pick up the e5 pawn while maintaining Black's activity.}
)) 25... Rc6 {A multi-purpose activation of the rook, defending b6 and
preparing a double rook swing (as described by Ivan Sokolov in his recent book
"Chess Middlegame Strategies") to the kingside. Moreover, Black also gains the
idea of ...Qc7 with the big threat of ..Rc2 trapping the White queen.} 26. a3 {
This move caught me by surprise. I'd expected White to take his (temporary)
opportunity to evict the Black knight from d3 with the obvious 26.Ne1 or the
very risky 26.Qe2. 26.a3 ups the stakes considerably by taking away the b4
square from the Black knight. It adds venom to 27.Qe2 as after 27...Nb4 28.Qb2,
the knight is hanging on b4. After 28...Rc2 29.Qb1, all of Black's pieces (Nb4,
Rc2 and the Rf5 behind it) are hanging on a thread which will start to unravel
on the next move after axb4. Black gets one shot to strike or his whole
position collapses. On the downside, White gives Black a whole move to
improve his attacking posture and with so many pieces poised to move to the
kingside, you feel that has to count for something!} (26. Ne1 Nxe1 (26... Nxe5
27. Bxe5 Rxe5 (27... Qxe5 28. Nf3 {followed by Nd4 forks the rooks! An unusual
tactic that I was happy to spot quickly!}) 28. Nf3 {Black has not profited
from winning the e5 pawn: the weakness of his pawns on d5 and f4 is obvious
while White can make better use of the open centre.} Rh5 29. Qxf4 Rf6 30. Qg3 {
with Re1 to follow} Rg6 31. Qb8+) 27. Rxe1 {My opponent was very pessimistic
about this position, excessively so I felt during the game . Black has
attractive attacking chances with 27...f3, 27...Rh6 or 27...Rg6 but White will
get counterplay with e5-e6, even as a pawn sacrifice. However, the more I look
at it at home, the less I feel like taking the White side!} Rh6 28. h3 (28.
Rac1 Rxh2 29. Kxh2 Qh4+ 30. Kg1 Rh5 31. f3 Qh2+ 32. Kf2 Rg5) (28. f3 Qh4 29. h3
Rg5 30. Bxb6 {An amazing shot which I was pleased to spot, as well as the
refutation!} Rxg2+ (30... Bb7 31. Bd8) (30... Rxb6 31. Qxd5+ Kf8 32. Qd8+ Kf7
33. Qxb6 Rxg2+ {is only a draw by perpetual}) 31. Qxg2 Rg6 32. Bf2 Qxh3 {
A very important idea} 33. Qxg6 hxg6 34. e6 Kf8 {with ...Qxf3 to follow}) (28.
e6 Rxh2 {Strangely enough, Komodo only assesses this as a win after you make
the move!} 29. Kxh2 (29. Bf6 Rxf6 30. Kxh2 Rh6+ 31. Kg1 Qh4) 29... Qh4+ 30. Kg1
Rh5 31. f3 Qh2+ 32. Kf2 Rg5 {I hadn't seen during the game that this was
mating. I thought I only had a draw with ...Qg3+}) (28. g3 {was the umm..
amazing Komodo suggestion for a very long time.} Qe6 {Umm... what is White
doing here? Suddenly Komodo switches to losing for White!}) 28... Rg6 (28... f3
29. Be3 {is an annoying resource.} Re6 (29... Rg6 30. Qxd5+ Kh8 31. g3 (31.
Qa8+ Rf8 32. Qxa6 Rxg2+ 33. Kf1 Qxe5 {followed by ...Qh2}) 31... Bb7 32. Qd3
Rxe5 {I thought this might be an edge for Black but Komodo of course disagrees.
If White's kingside is holding, then his position is more solid than Black's
and of course Komodo will hold!} 33. Kh2 {is his recommendation which is very
sensible}) 30. Qxd5 Bb7 31. Qd3 Rfxe5 {is Komodo's better version when I would
rather be Black. He looks very active: you can't imagine White challenging the
e-file for a while.}) 29. Kh2 f3 {Now that Be3 with tempo has been sidestepped.
White faces an uphill defensive task.}) (26. Qe2 {This looks and is
exceedingly risky, but if it works concretely, then Black's pieces could get
into an terrible mess! I can understand that my opponent didn't believe it -
it looks awful - but from the Black side, it was a constant worry!} Nb4 27. Qb2
Rc2 {This was the line I really wanted to play of course.} (27... Nd3 {My
first thought was that I had a draw by repetition at least, which is always a
comforting thought... but then I spotted 28.Qb1 which wins on the spot. It
reinforced my feeling that this position was much closer than I had believed.})
(27... Nc2 28. Rac1 Be2 29. Rxc2 {is the annoying tactic due to the loose rook
on c6.} (29. Rd2 Bxf3 30. Rdxc2 Qg5 31. g3 Qh5 {would make Black very happy of
course!}) 29... Bxf3 30. gxf3 Rg6+ 31. Kf1) 28. Qb1 Be2 {was the main source
of my feverish calculations while my opponent was thinking.} 29. Rd2 Rxd2 (
29... Bxf3 30. Rxc2 Nxc2 31. Qxc2 Qg5 (31... Rg5 32. Qc8+ Kf7 33. g3 {is
perfectly safe for White}) (31... Be4 {followed by ...f3 was my bail-out line,
although Komodo likes White after} 32. Qc8+ Rf8 33. Qg4 f3 34. Rc1 {e6 will
follow}) 32. Qc8+ Rf8 33. Qe6+ Kh8 34. Qh3 (34. g3 fxg3 35. fxg3 (35. hxg3 Qh5)
35... Qd2 36. Bf2 Qxf2+ 37. Kxf2 Bg4+ {wins, thank you Komodo!}) 34... Be4 35.
e6 {is pleasant for White according to Komodo.}) 30. Qxf5 (30. Nxd2 Rg5 {
looked very dangerous with White's major pieces so awkward on the queenside})
30... Bxf3 31. gxf3 {and unbelievably after} Rxd4 {White has} 32. Rc1 {
winning! In general, I'm pleased for spotting that, but during the game I was
at the muttering-curses-under-my-breath phase of my analysis when my opponent
surprised me by playing his move.}) 26... Qe8 {I was a little off the pace
during the Limburg tournament. I chose this move after ending my thought
process a little too quickly. It was a reasonable practical decision - I'd
spent about 20 minutes on my move, and I wanted to ensure I didn't fritter
away all of my time advantage - but just a few minutes' extra reflection might
have led to a better decision. Let's take a moment to understand the position.
First of all, how good is Black's attacking posture? The most notable feature
of Black's position is the Kasparov "Octopus knight" on d3 (named after the
famous 16th game of the 1985 World Championship match). Its foundations are
not impregnable - it is only supported by the bishop on a6 - but the knight is
nonetheless difficult for White to attack in a concerted manner. Ne1 is an
obvious idea, but this also exchanges a key defender of White's kingside.
White would like to attack the knight with queen and rook, but Qe2 invites a
discovered attack from the knight on d3, while Qc2/c3 is impossible as long as
Black maintains his rook on the c-file. What only occurred to me during home
analysis is that 26.a3 has also introduced the "snooker shot" Qd2-a2-b1
getting past Black's control of c2 to attack the knight on d3 with queen and
rook! Note that the bishop on a6 - as well as protecting the knight on d3 -
also dissuades the White king from running away from the kingside by covering
the a6-f1 diagonal. That's a nasty psychological feeling for White to contend
with. As we've mentioned, the rook on c6 plays a dual role. In general it
should stay on the c-file as long as possible in order to prevent Qc2/c3. It
should only move to the kingside once Black has a tactical win. Let's move
on to the kingside, and start with the most problematic factor: the pawn on f4.
Whenever this structure arises, I always think back to a game from my last
tournament as a professional, or rather after which I decided to look for a
proper job: Tilburg 1998. I had just drawn with Joel Lautier from this
position. Anand came to me after the game and said "You took a draw? With that
pawn on f5?" Here the pawn on f4 does perform the important task of
preventing Qe3 but... imagine if that pawn wasn't there! I'd have threats of ..
.Rxf3, if chased away my knight could retreat to the monster square f4,
attacking g2 and e2. Once again I would happily offer my pawn to my opponent
if I could! As for the option of ...g5-g4, in some ways this looks pretty
tempting: it's easy to achieve (I could play it now) and it gains a tempo
against the White knight while gaining kingside space. However, I thought back
to my comments I made on the 25th move of my game against Adam Ashton at the
4NCL (http://matthewsadler.me.uk/the-endgame/lessons-4ncl-may-2017-part-ii/).
When you advance pawns to gain space, you have to be aware that you are losing
the opportunity to attack the opponent's pawns on that wing with your pieces.
And that was the crux. After White plays Ne1, I would really want to start
hitting on g2 and h2 with rooks and queen on the g- and h-files, but then I
don't want my g-pawn in the way. Moreover, ...g5 opens my own king and I was
worried about a future e5-e6 followed by a White occupation of the e- or
c-file or God forbid, a queen and bishop battery along the a1-h8 diagonal.
While thinking about these things, the outline of a plan gradually formed in
my head. Tactically, I needed to be ready for Qe2 on the next move, I needed a
way of transferring my major pieces to the kingside (making sure to move the
c6 rook as last to prevent White counterplay with Qc2/c3 - and I was going to
avoid playing ...g5 unless it was part of a decisive final onslaught.
Thinking about 27.Qe2, I spotted the tactical idea 27...Nxe5 28.Qxa6 Nxf3+ 29.
gxf3 in a flash, but for some reason, it took me way too long before I
stumbled on the way to mate White if he ran to the centre with his king and
this led to my hasty choice for 26...Qe8 later. The key problem was that my
king is exposed (a consequence of ...f5-f4!) If my major pieces are poised on
the g- and h-files and White's queen gives a check from the back rank, then
it's perpetual at best, disaster at worst! I don't want to give my king an
escape square with ...h6 because that takes away the h-file from my rook on c6,
and after some agonising I understood that I really needed it! In the end, I
got a grasp of all the tactics and I realised that 26...Qe8 - covering the
back rank - would refute 27.Qe2. I was also very happy about ...Qe8 because
it placed the queen on a light-square and I had gradually become convinced
that I needed my queen on a light-square - together with both rooks - to open
up White's kingside. That's all logical... but the implementation sucks! The
point is that after ...Qe8, the most natural attacking formation (I'd also
thought about the possibility of playing the queen to g6 just to support the
knight on d3) is to bring my queen to h5 and then my rook to g6. That's great
but I'm only putting 2 major pieces in play: I'm not activating my rook on f5
at all. It's not enough. So what would have been the most effective
regrouping? Well I also spent a lot of time on} (26... Rh5 {I found some
interesting lines during the game, but my biggest problem was that 27...Rch6
was not a threat.} 27. b4 {Komodo. A fantastic defensive resource. I didn't
understand at all what his idea was so I took on the challenge to prove Komodo
was an idiot. Bizarrely enough, I succeeded in a few lines, but - as always -
not completely!} (27. Z0 Rch6 28. Qc3 Rxh2 29. Nxh2 Qh4 30. Rxd3 Qxh2+ 31. Kf1
{At my first look at the position, my heart leapt at} Rh3 32. gxh3 f3 {and the
audience is allowed to shower the board with gold coins! Unfortunately, simply}
33. Ke1 {wins! It was around here that I started to understand how solid
White's minor pieces were. Look at that bishop on d4, covering the rook on a1
and covering the f2 pawn, together with the rook on d3 giving the White king
an umbrella to escape the storm on the kingside. After this variation, I
rather lost interest in 26...Rh5, got into 26...Qe8 and never looked at it
again. I do wish that after working out 26...Qe8, I'd just tried another sweep
of my ideas to see whether the themes I'd found there could also work in other
lines. If I had, I'd have seen that 26...Rh5 also refutes 27.Qe2 and that it
also offers me a much more powerful method of coordinating all 3 major pieces
against White's kingside along the light squares.}) (27. Qe2 Nxe5 28. Qxa6
Nxf3+ 29. gxf3 Rg6+ 30. Kf1 (30. Kh1 Rxh2+) 30... Rhg5 31. Qc8+ Kf7) (27. Ne1
Rxh2 28. Kxh2 (28. Nxd3 Qh4) 28... Qh4+ 29. Kg1 Rh6) (27. Ra2 {as in the game}
Rg6 (27... Qd7 {is also strong}) 28. Qc3 Rxg2+ 29. Kxg2 Qe6 {After I found
this, it took me a while to really believe I'd seen all the defensive
possibilities!} 30. Ng1 (30. Rxd3 Qh3+ 31. Kg1 (31. Kh1 Rg5) 31... Bxd3 32.
Qxd3 Rg5+ 33. Nxg5 Qxd3) 30... Qg4+) 27... Qd7 {Not one of Komodo's main lines,
but definitely the strongest in my opinion. Black connects his queen to the
kingside light squares while keeping his knight safe from attack by Qc2/c3 for
as long as possible.} (27... Rg6 {Dangerous, but this releases Black's control
of the c-file 1 move too early} 28. Qc2 {Even stronger than 28.Qc3} (28. Qc3
Qe6 29. Rxd3 Qh3 30. Kf1 {Always the key resource} (30. g3 fxg3 31. fxg3 Rxg3+
32. hxg3 Qxg3+ 33. Kf1 Qxf3+) 30... Qxg2+ 31. Ke2) 28... Qe6 29. Rxd3 Qh3 30.
g3 fxg3 31. fxg3 Rxg3+ 32. hxg3 Qh1+ (32... Qxg3+ 33. Qg2) 33. Kf2 Rh2+ 34. Ke3
{wins}) 28. b5 {The fantastic idea behind 27.b4} (28. bxa5 Rg6 {just wins}) (
28. Rab1 Bc4 {is an additional possibility} (28... Rg6 29. b5 {is a
transposition to 28.b5})) 28... Bxb5 29. Rab1 Rg6 (29... Bc4 30. Rxb6 {
Prevents Black from adding the c6 rook into the attack which is enough to keep
White's kingside safe. That means it's time to go all-in!}) 30. Rxb5 Qh3 31.
Kf1 {The key resource... which I'd missed in my analysis!} (31. g3 fxg3 32.
fxg3 Rxg3+ 33. hxg3 Qh1#) 31... Qxg2+ 32. Ke2 {and amazingly Black has no
better than a draw} Nxe5 33. Bxe5 Rxe5+ 34. Nxe5 Qe4+ 35. Kf1 Qh1+ 36. Ke2 Qe4+
{Amazing!}) (26... g5 27. Ne1 Nxe1 (27... Nxe5 28. Bxe5 Rxe5 (28... Qxe5 29.
Nf3 {followed by Nd4!}) 29. Nf3) 28. Rxe1 {The pawn on g5 gets in the way of
Black's attack!}) 27. Ra2 {This looked all wrong to me. With so much going on
in the position, it didn't seem right to undefend the rook on d1 and weaken
the back rank, especially with Black's queen coming to the d1-h5 diagonal!
Despite that, Komodo is still OK with it.} (27. Qe2 Nxe5 28. Qxa6 Nxf3+ 29.
gxf3 Rg5+ 30. Kh1 (30. Kf1 Rcg6 {It took me a long time to spot this idea})
30... Rh6 {...which is why I don't want a pawn on h6!} 31. Qf1 (31. Rg1 Rxh2+
32. Kxh2 Qh5#) 31... Qh5 {and mate cannot be stopped}) (27. b4 {is again what
Komodo wants, and he's claiming a clear White advantage.} Qh5 28. Qa2 {Hitting
the weakness on d5 (which would exploit the open position of the Black king
due to the position of the f-pawn on f4) and thus preparing Qb1 with tempo to
evict the knight on d3 by a concerted attack of queen and rook. Note that the
better plan of 26...Rh5 and 27...Qd7 kept the d5 pawn defended! When you put
your pieces on harmonious squares, you get unexpected benefits!} (28. h3 Rg6
29. Kh2 {may be just as strong: with the White rook still on a1, none of the ..
.Qxf3 tricks work}) 28... Bc4 (28... Rg6 29. Qxd5+ Rf7 30. Rxd3 Bxd3 31. Rc1 {
turns the tables: White is attacking!} Qg4 32. Nh4 Rh6 33. e6 Qxe6 34. Qa8+ Rf8
35. Qb7 {Amazing tactics: White is better!} Rhf6 36. Bxf6 Qxf6 37. Qd5+ Kh8 38.
Qxd3 Qxh4 39. Qd6) 29. Qc2 Bb5 30. Qb1 {Cleverer than the immediate 29.Qb1. In
this way, White also threatens bxa5, hitting the bishop on b5} Rg6 31. Rxd3 Qh3
32. Kf1 Qxg2+ 33. Ke1 {White is safe and just better}) 27... Qh5 28. e6 {
Another surprise, but not an unwelcome one. While my opponent was thinking, I
was getting a bit upset about} (28. h3 {While I was considering 26...Qe8, I'd
spotted that this would not be easy to break but I'd dismissed it with the
typical Dutch expression "Dat zien wij dan wel" (We'll deal with that when it
happens). The closer I got though, the less gung-ho I felt. Black's major
pieces are just not coordinating. Without access to the g4 square, Black must
show additional ingenuity to involve all 3 major pieces into the attack.} Rg6 (
28... Rf8 29. Rc2 Rfc8 30. Rxc6 Rxc6 {was what I was considering in the end (I
didn't think my attack on the kingside was working) but this fails to a
diabolical tactical stroke} 31. Bxb6 Rxb6 32. Qxa5 Re6 33. Qxd5 Kf7 34. Qd7+
Re7 35. e6+ Kf6 36. Qd4+ Kg6 (36... Kxe6 37. Qb6+) 37. Rxd3 Bxd3 38. Ne5+ Kf5
39. Nxd3 {just wins for White}) 29. Kh2 Rh6 {Introducing a massive cheapo that
isn't easy to counter!} 30. Rc2 (30. Qc3 Qxf3 31. gxf3 Rfh5 32. Kg2 Rxh3 {
Threatening ...Ne1+ followed by mate} 33. Rxd3 Rh1 {You notice how crucial 27.
Ra2 is to the success of this tactic: nothing would work if White was still
covering his 1st rank!}) (30. e6 Qxf3) (30. Bxb6 Qxf3 (30... Rxb6 31. Qxa5) 31.
gxf3 Rfh5 32. Qxa5 Rxh3+ 33. Kg2 Ne1+ 34. Rxe1 Rh2+ 35. Kg1 Rh1+ 36. Kg2 R6h2#
{is mate}) (30. Rg1 Qg4 {followed by ...Rfh5}) (30. Rh1 g5 {looks very
dangerous: ...g4 is a threat and White can no longer exert concerted pressure
against the knight on d3.}) 30... Qxf3 {I tried all sorts of ways to make ...
Qxf3 work during the game but I don't think I got this one. In particular, I
missed one particular idea} 31. gxf3 Rfh5 32. Kg2 (32. Rc8+ Bxc8 33. Qxd3 Bxh3
{is killing} 34. Qc3 Bf1+ 35. Kg1 Rh1#) 32... Rxh3 33. Rc8+ (33. Qxd3 Bxd3 34.
Rxd3 Rh1 {This was the tactical point I'd missed. I thought that Qxd3 would
just refute my attack.}) 33... Kf7 (33... Bxc8 34. Qxd3) 34. e6+ Ke7 35. Rc7+
Kd6 {I'd missed this was legal in my analysis!} (35... Ke8 36. Rc8+ Ke7 {
is a draw by repetition}) (35... Kd8 36. e7+ Kxc7 37. Be5+ Nxe5 38. Qxf4 Rh2+
39. Qxh2 Rxh2+ 40. Kxh2 Nxf3+ 41. Kg3 Kd7 42. e8=Q+ Kxe8 43. Kxf3 Ke7 44. Ke3 {
is better for White according to Komodo}) 36. Be5+ (36. Rc4 Rh2+ 37. Kf1 dxc4
38. bxc4 Rh1+ 39. Ke2 Bxc4 {Well done Komodo!}) 36... Kxe5 37. Qc3+ d4 38. Re1+
Kf5 39. Rf7+ Kg6 40. Rxg7+ Kxg7 41. Qxd4+ Kg6 42. Qe4+ Kg7 43. Qd4+ {is the
amazing Komodo main line!}) 28... Rxe6 29. Qc3 {The natural follow-up to 28.e6
(which distracted the Black rook from the c-file) but a tactical blunder which
wasn't difficult to refute.} Rg5 30. Kh1 (30. Rxd3 Bxd3 31. Qxd3 Qxf3 {is the
gorgeous refutation of White's idea, and an indictment of White's weakening of
the back rank with 27.Ra2.}) 30... Rxg2 31. Rxd3 Bxd3 32. Qxd3 Reg6 (32... Re1+
33. Kxg2 Qg4# {would have been a quicker mate as my opponent pointed out to me
after the game.}) 33. Ra1 Qh3 34. Qe2 Rxh2+ 35. Nxh2 Qg2# {After the game, I
started thinking about the position, wondering what general lessons I could
draw. One unexpected point was how relatively poor Komodo 11.01 was at
analysing the position (by its standards). A number of tactics escaped its
attention and there were quite a few situations where its evaluation only
corrected itself when a move was played on the board. I was very glad that I
took the time after the tournament to analyse the position for myself and
offer some resistance to Komodo's evaluations. I was a bit depressed after
checking my moves quickly with the engine directly after the game! It had
looked as if all my feelings about the position had been completely wrong,
which was not the case. The most intriguing thing however is that the
position after 26...Rh5 is apparently only a draw with best play. What could
be the reason for this? Is a secret of perfect defence hidden somewhere in the
position? To be honest, I don't think so. White has to tread a
claustrophobically narrow path and find a creative defensive idea (b4-b5 with
the idea of Rb1xb6 swapping off a pair of rooks) backed up by flawless
calculation to pull it off. And if the Black queen had coincidentally been on
d7 in the position after 26.a3 instead of on e7, it's an easy win for Black!
The tactics are very very close! In general, it's a dangerous position for
White and he should feel lucky he has a way to escape. However, let's just
look at it from the practical point of view. Imagine you're White, thinking
about your 26th move in this specific position. How might you be able to find
this narrow path to a draw? In general, you only find good defensive resources
if you're looking for them. You have to believe that the position offers
something for you or you'll stop halfway, and not muster all your creativity
to find a difficult solution (which is definitely required here). So perhaps
the first question is: what general positional factors in the position does
White need to notice to give him hope? I came up with the following list: 1.
Black's attacking structure with the pawn on f4 You know that the pawn on f4
will get in the way of Black's attack with the pieces which should slow down
Black's attack just a little 2. Black's king is open A check on the back
rank, or the capture of the d5 pawn, and Black's king is very embarrassed. 3.
Black's weakened quuenside and central structure The pawns on b6 and a5 are
targets for White's bishop on d4, the pawn on d5 is isolated and the pawn on
f4 is also within range of White's pieces. White's structure is excellent. You
could imagine entering an endgame a pawn down as White and still standing well
because of the range of Black weaknesses to attack. 4. Invasion channels are
available. Although the c-file is currently under Black's control, there are
possibilities to invade into Black's position once the c6 rook moves to the
kingside. On top of that, White also has the break e5-e6 to open both the
e-file and the a1-h8 diagonal. In other words, Black has temporary control of
the invasion channels (due to his knight on d3), but not absolute lasting
control. 5. White's stable minor pieces This is a very important point. We
have seen a number of lines in which the bishop on d4 is an absolute rock,
defending f2 and a1. The bishop is impregnable, shielded by the Black pawn on
d5. The excellent knight on f3 is very difficult to attack with the major
pieces that Black has at his disposal as a kingside attacking force (due to
the Black pawn on f4!) and keeps the Black pieces out of h4 and g5 while
defending h2. 6. Black's most important piece is the most fragile The
knight on d3 is Black's key piece, keeping White off the e- and c-files.
However, it is also a very fragile factor, defended only by the bishop on a6.
If that piece gets into trouble, then Black's position gets into trouble
because the knight is effectively shielding the underlying weaknesses in
Black's position. The last point is perhaps the most important: it means
that there is an underlying danger to Black's position. If he gets things
wrong, it's not just shrug -your-shoulders-and-agree-a-draw, it's
see-White-pick-up-all-your-weaknesses-one-by-one! That fact alone makes it
worth fighting with all your might to put pressure on Black's position. All
in all, there's enough positional ammunition for White to keep him from
becoming too hopeless about his position. The second question is: what
tactical factors could White discover which might point him in the right
direction? 1. First of all, calculation should give you the feeling that
Black needs all his major pieces in play for a successful attack against the
kingside. That means 2 things: i. The attack will take a little time as Black
needs 3 moves at least to activate all his major pieces on the kingside ii.
If Black is having to divert all his major forces to one wing, there should
definitely be some chances to hit all the weak squares within the rest of
Black's position. 2. If you're really into things, it might dawn on you that
White's pieces are already pretty well-placed from a defensive point of view.
In particular, the position of both rooks on the back-rank is a key part of
the solidity of White's structure. With those sort of thoughts in your head,
with the hope that springs from noticing flaws in the opponent's position, and
with a dogged and resolute determination to strike back at those flaws before
Black activates his major pieces, you might have a chance of defending this
position successfully in a practical game. It's anything but easy though: even
Komodo isn't flawless!} 0-1
[Event "Chess24 Blitz"]
[Site "?"]
[Date "2017.03.05"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "NN"]
[Result "*"]
[ECO "D80"]
[Annotator "Sadler,Matthew"]
[PlyCount "33"]
[EventDate "2017.02.20"]
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e4 {This line actually has a good blitz
pedigree: both Lautier and Nakamura have played it!} dxe4 5. Bg5 h6 6. Bf4 {
A nice little subtlety to ensure that Black can;t castle without weakening
himself} Bg7 7. Qd2 g5 8. Bg3 Nc6 9. O-O-O {I wondered about 9.Nb5 immediately
but I decided that I was bound to get the chance later!} Bf5 10. h4 g4 11. Nb5
Rc8 {Heading towards disaster. Castling was a good option} 12. d5 a6 (12... Nb8
13. Nxa7 {seemed trapping the rook on c8 seemed quite funny, but the text
allows a very unusual finish!}) 13. dxc6 Qxd2+ 14. Rxd2 axb5 15. cxb7 Rb8 16.
Bxc7 Rxb7 17. Rd8# *
[Event "Chess24 Blitz"]
[Site "?"]
[Date "2017.03.05"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "NN"]
[Result "*"]
[ECO "D80"]
[Annotator "Sadler,Matthew"]
[PlyCount "39"]
[EventDate "2017.02.20"]
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nh3 {Surely noone has played this was my first
thought when it popped into my head. And indeed, I may adorn this move with TN
(Sadler)!} Nc6 5. Nf4 dxc4 6. d5 Ne5 7. Qd4 Ned7 8. e4 Bg7 9. Bxc4 O-O {
Here I supected that Black was teeing up for ...Nb6 and ...Nfxd5 discovering
an attack on the White queen on d4, so I thought I would be subtle} 10. Bb3 Nb6
11. e5 Ng4 12. Nd3 {It's a bit fragile and wouldn't survive Hurricane
Stockfish but against a human it's just fine!} Bf5 13. h3 Bxd3 (13... c5 14.
Qf4 Bxd3 15. hxg4 c4 16. Qh2 g5 {was as far as I had seen with a "I must be
able to think of something". Looking at it now, I'm sure I would have gone for}
17. Bxg5 cxb3 18. f4 {hopoing for f5 though Komodo refutes this with
consummate ease:} Bxe5 19. fxe5 Nxd5 20. O-O-O Nxc3 21. bxc3 bxa2 22. Kb2 a1=Q+
23. Kxa1 Qa5+) 14. hxg4 {Now it's very tempting!} Ba6 15. Bh6 c6 16. Qf4 cxd5
17. Bxg7 f5 18. Rxh7 Kxh7 19. Qh6+ Kg8 20. e6 {and Black resigned!} *
[Event "BPB Limburg Open"]
[Site "chess24.com"]
[Date "2017.06.05"]
[Round "7.1"]
[White "Sadler, Matthew D"]
[Black "Sokolov, Ivan"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2684"]
[BlackElo "2625"]
[Annotator "Sadler,Matthew"]
[PlyCount "187"]
[EventDate "2017.??.??"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]
[WhiteClock "0:01:02"]
[BlackClock "0:01:00"]
{[%mdl 8192]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 Nf6 6. e3 Bf5 7.
Qb3 Nc6 8. a3 Rb8 9. Nf3 O-O 10. Rc1 Re8 11. Be2 a6 12. O-O h6 13. Bg3 Bf8 14.
Rfe1 Re6 15. Nd2 b5 16. Qd1 b4 17. axb4 Rxb4 18. b3 Bd6 19. Na4 Bxg3 20. hxg3
a5 21. Nc5 Re7 22. Nd3 Rb6 23. Rc5 Qd6 24. Qc1 Bxd3 25. Bxd3 Nb4 26. Qb1 Nd7
27. Rxa5 g6 28. Rc1 Re8 29. Be2 h5 30. Qa1 Nf8 31. Ra8 Rxa8 32. Qxa8 Kg7 33.
Nf3 Nc6 34. Bb5 Ne7 35. Ba4 f6 36. Rc5 c6 37. Qa7 Nd7 38. Rc2 Kf7 39. Ne1 Ke8
40. Nd3 Qb8 41. Qa5 Kf8 42. Qd2 Kg7 43. Rc3 Qd6 44. Qd1 Nf8 45. Rc5 Ne6 46. Ra5
Qc7 47. Qe1 Kf7 48. b4 Qb7 49. Bc2 Nc8 50. Qa1 Qc7 51. Bb3 Ne7 52. Qa2 Rb7 53.
Ra4 Rb5 54. Qe2 Rb7 55. Qb2 Nf5 56. Qc3 Ne7 57. e4 Ra7 58. Rxa7 Qxa7 59. exd5
cxd5 60. Nc5 Nc7 61. Ba4 Nf5 62. Bd7 Nd6 63. Qc1 Ne4 64. Nxe4 dxe4 65. Qc6 Ke7
66. Bc8 f5 {Up til here, it had been a good quality fight in which White had
gradually assumed the upper hand, but now things get very random. I guess I
was more nervous than I realised, or maybe I was just flagging after the 3rd
day of 2 long games a day! In any case, what happened in the next few moves
isn't something to be proud of. After 66...f5, I have a bewildering array of
wins, starting with the simple 67.Qxg6 followed by 68.Bxf5 picking up all of
the kingside pawns. However, despite having enough time on the clock, I barely
looked at Black's move and played my intended move anyway.} 67. d5 Qa1+ 68. Kh2
Qe5 {I'd missed this was possible, and my heart rate increased again when I
spotted the following line:} 69. Qd7+ (69. Qxg6 Nxd5 70. Bxf5 (70. Qh7+ {
is much stronger}) 70... e3 {worried me: I feared I might end up with just 2
extra doubled g-pawns!}) 69... Kf8 70. Qd8+ Kf7 (70... Kg7 71. d6 (71. Be6 {
was my intention after some feverish calculation which looked pretty easy.
However, Ivan's 70...Kf7 didn't play along with that idea.}) 71... Ne8 72. d7
Nf6 {That was the point of ...f5!} 73. Qa5 Ng4+ 74. Kg1 (74. Kh3 Nxf2+ 75. Kh2
{is White's best by now, settling for perpetual}) 74... Qd4 {was as far as I
got and with mounting disbelief, I concluded that I was lost. I pulled myself
together, and found a more convincing way.}) 71. Qd7+ {I couldn't bring myself
to play d6!} (71. d6 Ne8 72. d7 Nf6 {and now} 73. Qb6 {was the way to win,
protecting f2. The glorious point is that with Black's king on f7, White can
queen his pawn to a knight...with check!} Qa1 74. f3 exf3 75. gxf3 Qa2+ 76. Kh3
Qa1 (76... Ng4 77. d8=N+) 77. d8=N+ Ke8 78. Kh4) 71... Kf8 72. Bb7 {A really
bad move, but I decided I needed to get the queens off or things might go
really bad!} Ne8 73. Qe6 Qxe6 74. dxe6 Ke7 {I knew I'd made things difficult
for myself, but with 2 passed pawns and a bishop to support them, I was
expecting to still have an advantage. However, Komodo claims 0.00 in several
ways so I really have messed things up royally. At least my panic was over,
and I was focused again on making things as difficult as possible for Ivan to
prove the draw.} 75. Bc8 Nc7 76. f3 e3 (76... Nxe6 77. Bxe6 Kxe6 78. fxe4 fxe4
{was difficult to calculate with very little time, but it is drawn as Ivan
pointed out to me after the game. 76...e3 doesn't spoil anything though} 79.
Kg1 Kd5 80. Kf2 Kc4 81. Ke3 Kxb4 82. Kxe4 Kc3 83. Ke5 Kd3 84. Kf6 Ke3 85. Kg5
Kf2 86. Kxg6 Kxg3 87. Kxh5 Kxg2) 77. Kg1 g5 78. f4 {The best chance, stopping
Black from shoring up his e-pawn with ...f4. White will lose a kingside pawn,
but he will gain some time and freedom to push his b-pawn} gxf4 79. gxf4 Nd5
80. b5 Kd8 {The decisive mistake I think} (80... h4 {(preventing g3)} 81. Kf1
Kd6 {The key difference, was the drawing method as pointed out by Stefan
Kuijpers in his vlog.} 82. Ke2 Nxf4+ 83. Kxe3 Nxg2+ 84. Kf3 Ne1+ 85. Kf4 Nd3+
86. Kxf5 Nc5 87. b6 Nxe6 88. Bxe6 Kc6 {You can see here the difference between
playing the king to d8 and d6. From d8, the Black king cannot approach the
b-pawn. From d6, it's easy!}) (80... Nxf4 81. b6 {wins}) 81. Bd7 h4 82. Kf1
Nxf4 83. b6 Nd5 (83... e2+ 84. Ke1 Nxg2+ 85. Kxe2 {is suggested as drawing by
the engines, but I'm not convinced. The key point is that White can bring the
light-squared bishop to the h1-a8 diagonal from where it both supports White's
own b-pawn and holds back both of Black's passed pawns. After} Nf4+ 86. Kf1 Nd5
87. b7 Kc7 88. Bc6 Ne7 89. Bh1 {That's why the king needed to go back to f1!
If the king had gone to f3, the bishop would not have had a retreat square on
the diagonal! As far as I can see, Black has to keep his knight on g6 to stop
White from winning the kingside pawns (the knight on g6 covers the f4 and e5
entry points). However, White has a simple winning plan: 1. Bring the king to
a6, threatening Ka7 forcing ...Kb8 2. After ...Kb8. Bring the king to b6.
Black must play ...Ne7 to stop Kc6 3. Wait with the bishop until Black has
exhausted his pawn tempi. 4. When the knight has to move from e7, invade with
the king and help the e-pawn home} Ng6 90. Kf2 Ne7 91. Ke3 Ng6 92. Kd4 Kb8 93.
Kc5 Kc7 94. Kb5 Ne7 95. Ka6 Kb8 96. Kb6 h3 97. Bf3 h2 98. Bh1 f4 99. Kc5 Nf5
100. Kd5 Kc7 101. Ke5 Ng3 102. e7 {wins}) 84. b7 Kc7 85. Bc6 {Again the
crucial idea} Ne7 86. Bf3 f4 87. Be4 Ng8 88. Ke2 Ne7 89. Kd3 Kb8 90. Bf3 Kc7
91. Kc3 Nf5 92. Kd3 Ne7 93. Kd4 Ng6 {A blunder which shortens the game} (93...
e2 94. Bxe2 Kxb7 95. Ke5 {was crucial. It is overwhelmingly likely that White
will win both kingside pawns which should be an easy win, but White can tie
himself into a little knot if he isn't careful.} Kc6 {The best try} 96. Bd1 {
The clearest} (96. Kxf4 Kd5 97. Bg4 Kd6 98. Kg5 Ke5 99. Kxh4 (99. Bh3 {should
still win} Ng8 100. Kg6 Ne7+ 101. Kf7 Kd6 102. Bg4 {followed by transferring
the bishop to b3 and picking up the h4 pawn}) 99... Kf6 {is drawn! White can't
get his light-squared bishop out of the way to advance the g-pawn!}) 96... Kc5
97. Kxf4 Kd6 98. Bb3 {With the bishop protecting the pawn from the queenside,
there is nothing to stop the g-pawn powering through} Nc6 (98... h3 99. gxh3
Nc6 100. Kg5 Ke7 101. h4 Kf8 102. h5 Kg7 103. h6+ Kh8 104. Kf6 {The knight
cannot stop White from queening the e-pawn}) 99. Kg5 Nd4 100. Ba2 Ke7 (100...
Nf3+ {I had high hopes for this defence until I realised that White has an
easy refutation!} 101. gxf3 h3 102. e7 Kxe7 103. Bd5 Kd6 104. Ba8 h2 105. f4)
101. Kxh4 Kf6 102. g4) 94. Ke4 {and here Ivan lost on time.} (94. Ke4 e2 (94...
Kxb7 95. Kf5+) 95. Bxe2 Kxb7 96. Kf5 Ne7+ 97. Kxf4 (97. Kf6 Ng8+ 98. Kf7 Nh6+
99. Kf8 Nf5 {looks unnecessarily adventurous for White, and amazingly Black
gets drawing chances here!} 100. e7 Nd6 {and now} 101. e8=Q Nxe8 102. Kxe8 Kc6
103. Ke7 Kd5 104. Kf6 Ke4 105. Kg5 Ke3 {is a draw! The White bishop is
terribly-placed!} 106. Bg4 (106. Bd1 Kf2) (106. Bf3 h3) 106... Kf2 107. Bh3 f3)
97... Kc6 98. Bc4 {is at least the same as the previous line}) 1-0
[Event "BPB Limburg Open"]
[Site "chess24.com"]
[Date "2017.06.04"]
[Round "5.1"]
[White "Sadler, Matthew D"]
[Black "Leenhouts, Koen"]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "2684"]
[BlackElo "2475"]
[Annotator "Sadler,Matthew"]
[PlyCount "65"]
[EventDate "2017.??.??"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]
[WhiteClock "0:39:31"]
[BlackClock "0:32:54"]
1. c4 (1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5
Bb7 8. f3 h6 9. Bh4 d5 10. e3 Nbd7 11. cxd5 Nxd5 12. Bxd8 Nxc3 13. Bh4 Nd5 14.
Bf2 Rac8 15. Bb5 c6 16. Ba4 b5 17. Bb3 c5 18. Ne2 cxd4 19. Nxd4 Nc5 20. Bc2 b4
21. O-O bxa3 22. Rxa3 Nb4 23. Bb1 Ba6 24. Rd1 e5 25. Be1 Rb8 26. Nf5 Be2 27.
Bxb4 Rxb4 28. Rd2 Bb5 29. Rxa7 e4 30. Ba2 Bd3 31. Ne7+ Kh7 32. Nc6 Rb6 33. Ne5
f6 34. Nxd3 exd3 35. Rc7 Rfb8 36. Rxc5 Rxb2 37. Rxb2 Rxb2 38. Bc4 d2 39. Be2
Rb1+ 40. Kf2 d1=Q 41. Bxd1 Rxd1 42. h4 Rd2+ 43. Kg3 g6 44. h5 gxh5 45. Rxh5 Kg7
46. Ra5 Kg6 47. f4 h5 48. Kf3 f5 49. Ra6+ Kg7 50. Ra1 Rb2 51. Rh1 Kg6 52. Rh3
Rb8 53. Rg3+ Kf6 54. Rg5 Rh8 55. Rg3 Rh7 56. Ke2 Rh8 57. Kf2 Kf7 58. Rf3 Kf6
59. Kg3 Rg8+ 60. Kh3 h4 61. Kh2 Kg6 62. Rh3 Re8 63. Rf3 Kf6 64. Kg1 Kg6 65. Rh3
Kh5 {After 25 moves of fruitlessly trying to make progress, I set my final trap
} 66. g3 Rxe3 {and Black resigned before I could finish playing the
devastating 67.g4+ 1-0 Sadler,M - Onischuk,A Cuxhaven 1994}) 1... g6 2. d4 Nf6
3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. O-O-O Qd6
10. Nb5 Qd7 11. Kb1 Rd8 12. d5 a6 13. Nc3 Qe8 14. Qc1 Na5 15. Bh6 Bxh6 16. Qxh6
e6 17. Nh3 Qf8 18. Qf4 Qe7 19. g4 Nac4 20. Bxc4 Nxc4 21. e5 Qb4 22. Qc1 exd5
23. Nxd5 Rxd5 24. Rxd5 Be6 25. Rdd1 Qa5 26. b3 Nxe5 27. Nf4 Re8 28. Nxe6 Rxe6
29. Rd8+ Kg7 30. Qb2 {I had come out well of a theoretical battle and I was
looking to finish off the game efficiently to get a reasonably early night for
once! It never fails to surprise me how many variations you still need to
calculate accurately, even when your opponent's position seems quite hopeless.
Never forget that when you're in a difficult situation yourself! As the
superior side in such situations, the most useful thing you can have is enough
time to calculate calmly without stress. Under those circumstances, working
out variations doesn't seem that difficult any more.} f6 {I started licking my
lips after this move, but it's probably Black's best. I'd spent most of my
time looking at ways to avoid this weakening of the 7th rank:} (30... g5 31. h4
h6 32. hxg5 hxg5 33. Qh2 (33. Rd7 {is also strong}) 33... Ng6 34. Rd7 Re1+ 35.
Rxe1 Qxe1+ 36. Kb2 Ne5 37. Rd8 {is very strong for White}) (30... Kh6 {was the
fun line!} 31. g5+ Kxg5 (31... Kh5 32. Qg2 {Threatening Rh8 or just f4} Qc3 33.
Qh3+ Kxg5 34. f4+ {For me this tactic is indelibly associated with a crucial
last-round game I won against Onischuk at Cuxhaven in 1994:}) 32. f4+ {Drawing
the king forward} Kxf4 {The queen on a5 plays an annoying role in this
position, covering the e1 square. It took me a little while before I
discovered how to coordinate my pieces against the Black king wherever he ran!}
33. Qc1+ {Important to establish control over the e1 square} Kg4 (33... Kf3 34.
Rf1+ Kg2 35. Qf4 {Threatening Rd2+}) 34. Rg1+ Kh3 (34... Kf5 35. Qg5+ Ke4 36.
Rg4+ {was my line... There are mates too!}) 35. Qh6#) 31. Rhd1 Nxf3 (31... g5
32. h4 gxh4 33. g5 {is impossible to deal with} (33. f4 {was my first thought
but} Nf7 (33... Nxg4 34. R8d5 Qxd5 (34... Re1 35. Rxa5 Rxd1+ 36. Kc2 Ne3+ 37.
Kc3 {Nothing for Black!}) (34... Qb4 35. Rg5+) 35. Rxd5 Re1+ 36. Kc2 Ne3+ (
36... Re2+ 37. Rd2) 37. Kd2 {also wins!}) 34. R8d7 h3 {felt irritating!}) 33...
fxg5 34. R8d5) (31... Qc5 32. g5 (32. h4 Qe3 (32... Nxf3 33. R8d7+ Re7 (33...
Kh6 34. g5+ fxg5 35. hxg5+ Qxg5 (35... Nxg5 36. Rh1+) (35... Kxg5 36. R7d5+)
36. Rh1+ Nh4 37. Qg7+ Kh5 38. Qxh7+ Kg4 39. Rg1+) (33... Kg8 34. Qc1) 34. b4 (
34. g5 Qf5+ {Oops}) 34... Qe3 35. g5 {wins}) 33. Qc1 Qxc1+ 34. Rxc1 Re7 35. Rc3
{was my basic idea, but Komodo has an absolutely gorgeous solution}) 32... fxg5
33. h4 {Komodo} h6 34. b4 {Wow! Completely missed that! ...h6 has put the
Black king into a trap!} Qe3 35. R1d7+ Kf6 36. Rf8#) (31... Qb4 {stopping f4
is probably Black's best but simply h4 (with g5 in the air) looks good for
White} 32. h4 Qf4 33. Qa3 {Another "small" move from the White queen which
Komodo claims is mate in 9!}) 32. R8d7+ (32. R1d7+ Kh6 33. Qc1+ Qg5 (33... g5
34. Rh8) 34. Rxh7+ Kxh7 35. Qxc7+ {is Komodo's preference. I'll claim I wasn't
looking for anything else once I found 1 win!}) 32... Kg8 33. Qc1 {A striking
conclusion of the queen's career in this game: it has spent its time on most
of the squares on the c1-h6 diagonal with a quick sidestep to the a1-h8
diagonal! Black has no good defence to White's multiple threats of Qh6, Qxc7
or Rxc7.} 1-0
[Event "BPB Limburg Open"]
[Site "chess24.com"]
[Date "2017.06.04"]
[Round "4.2"]
[White "Keetman, Maaike"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2144"]
[BlackElo "2684"]
[Annotator "Sadler,Matthew"]
[PlyCount "112"]
[EventDate "2017.??.??"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]
[WhiteClock "0:01:19"]
[BlackClock "0:14:24"]
{[%mdl 8192]} 1. e4 {last book move} (1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 a6 5.
Bb2 c5 6. Be2 Nc6 7. cxd5 exd5 8. d4 Bd6 9. dxc5 Bxc5 10. O-O O-O 11. Nc3 Re8
12. Na4 Ba7 13. Rc1 Ne4 14. Nc3 Nf6 15. Na4 Ne4 16. Nc3 Be6 17. Nxe4 dxe4 18.
Nd4 Nxd4 19. Bxd4 Bxd4 20. Qxd4 Qxd4 21. exd4 Re7 22. f3 Rd8 23. Rfd1 Bd5 24.
fxe4 Bxe4 25. Rd2 g6 26. Kf2 Rd6 {A good post for the rook. It can combine
against the d4 pawn with the other rook and can also move to the f-file if
required.} 27. h3 Red7 28. Rcd1 Kg7 29. Bc4 b5 30. Be2 Rc7 31. Re1 Rf6+ 32. Kg1
Bd5 33. Bd3 Rf4 {Making use of the rook's mobility.} 34. Bf1 h5 35. Be2 h4 36.
Rf1 Rxf1+ 37. Kxf1 Rc3 {Another great outpost: the rook controls the c-file
and can also swing over to g3 to attack the pawn on g2.} 38. Kf2 Kf6 39. Bd3
Kg5 40. Be2 Kf4 41. Bf1 f6 42. Re2 Be4 43. b4 Ra3 {Now the rook can also swing
over to the queenside to attack the pawn on a2!} 44. Rd2 Bd5 45. Be2 f5 46. Bd1
Rg3 {...and over to the kingside.} 47. Bf3 Bxf3 48. gxf3 Rxf3+ 49. Kg2 Rg3+ 50.
Kh2 Ke3 51. Rd1 Ke2 52. Rb1 Rd3 53. Rg1 Rxd4 54. Rxg6 Rxb4 55. Rxa6 f4 56. Rg6
f3 57. Re6+ Kf2 58. a3 Rb2 59. a4 Re2 60. Rf6 Ke3+ 61. Kg1 Re1+ 62. Kh2 f2 {
0-1 (62) Miezis Normunds (2524)-Sadler Matthew D (2653) Tromso 2014 [Sadler,
Matthew]}) 1... e6 (1... e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1
b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 Nc4
14. Ne3 Nxe3 15. Bxe3 Be6 16. Nd2 Rfe8 17. f4 Rad8 18. fxe5 dxe5 19. d5 Bd7 20.
c4 Rb8 21. a4 b4 22. a5 Rf8 23. Ba4 Bxa4 24. Rxa4 Rbd8 25. Qf3 {Given a little
time, you could imagine White regrouping his king to the queenside, placing
his rooks on the f- and g-files and then pushing his kingside pawns against
the Black king. The Black rooks would have nothing to do until the kingside
gets opened... when it's probably too late. Petrosian decided not to wait and
start interfering with White's kingside build-up.} Rd6 26. Nb3 Nd7 27. Raa1 Rg6
28. Rf1 Bd6 29. h4 Qd8 30. h5 Rf6 31. Qg4 Rf4 {This is not 100% correct, but
it's a much bigger challenge for White than a passive approach. In the ensuing
complications, Petrosian outplays Tal and should really have won.} 32. Bxf4
exf4 33. Nd2 Ne5 34. Qxf4 Nxc4 35. e5 Nxe5 36. Ne4 h6 37. Rae1 Bb8 38. Rd1 c4
39. d6 Nd3 40. Qg4 Ba7+ 41. Kh1 f5 42. Nf6+ Kh8 43. Qxc4 Nxb2 44. Qxa6 Nxd1 45.
Qxa7 Qxd6 46. Qd7 Qxf6 47. Qxd1 Rb8 48. Rf3 Ra8 49. Qe1 Rxa5 50. Qxb4 Re5 51.
Qf4 Kh7 52. Kh2 Rd5 53. Rf1 Qg5 54. Qf3 Re5 55. Kg1 Rc5 56. Qf2 Re5 57. Qf3 Ra5
58. Kh2 Kh8 59. Kg1 Ra2 60. Qd5 Rc2 61. Qa8+ Kh7 62. Qf3 Rc1 63. Rxc1 Qxc1+ 64.
Kh2 Qc7+ 65. Kh3 Qe5 66. g4 fxg4+ 67. Kxg4 Qg5+ 68. Kh3 Qf6 69. Qe4+ Kg8 70.
Qe8+ Qf8 71. Qxf8+ Kxf8 72. Kg4 Kf7 73. Kf5 {1/2-1/2 (73) Tal,M-Petrosian,T
Riga 1958}) 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. Bd3 c5 6. exd5 Qxd5 7. dxc5 Nbd7
8. Nb3 Nxc5 9. Nxc5 Qxc5 10. O-O O-O 11. Be3 Qc7 12. Bd4 b6 13. c3 Bb7 14. Qe2
Rad8 15. Rfe1 Rd5 16. Be5 Qc8 17. Nd4 Nd7 18. Bg3 Nc5 19. Bc4 Rdd8 20. Be5 Bd6
21. Rad1 Bxe5 22. Qxe5 {I recently reviewed Ivan Sokolov's excellent "Chess
Middlegame Strategies: Volume 1". One of the chapters is a fascinating
discussion of this typical pawn structure where White has a 3-2 queenside pawn
majority and Black has a 4-3 kingside pawn majority. Ivan proposes a number of
ground rules, but one of his most interesting insights is the value of the
advance / break ...b6-b5. On the one hand it exposes Black's queenside a
little and increases White's opportunity to exchange pawns on the queenside
and create a distant passed pawn there. On the other hand, by preventing White
from playing c3-c4 / exchanging White's c-pawn for his b-pawn, Black secures a
stable outpost on the valuable square d5, normally for his knight but
conceivably also for other pieces (my rook has already tasted the joy of the
d5 square in this game!) Note that Sokolov was mainly examining positions
with the c-pawn on c4. By placing his pawn on c3, White can establish a solid
central piece structure (the knight on d4) which can prove valuable as support
for a kingside demonstration. If White doesn't undertake kingside action, then
though his position remains solid, it is easy to see his position
deteriorating slightly due to lack of a plan while Black takes space on the
queenside (as in the game).} a6 23. Be2 b5 24. Nb3 Na4 {In 3 moves, White's
queenside has been turned from a potential (endgame) strength (currently
unrealised) into a (temporary) liability. White's queenside majority is
restricted by Black's queenside minority while the knight on a4 ties down a
higher-value piece (the rook) to the defence on b2. In order to make a start
to evicting the knight on a4, White will need to move the knight from b3.
Black's should attempt in the ensuing moves to make this as painful as
possible.} 25. Rb1 Qa8 26. Qg3 Be4 {Exploiting the weakness of the pawn on b2
to extract a permament static weakness from White.} 27. Bf3 Bxf3 28. Qxf3 Qxf3
29. gxf3 {Comparing this position to the situation just 6 moves earlier, you
can't help being happy as Black. However, you always want more! Ideally I
would liked to have gone into this ending with a couple of extra strengthening
moves like ...g6 and ...Kg7, which remove any back-rank mate tricks, take
control of f5 (which is often handy to achieve ...e5 after Nd4) and allow
Black to bring his king quickly into play, particularly after the exchange of
the rooks. However, White's kingside weaknesses aren't going anywhere so
build-up time is not a crucial factor. The first task in any such ending is
to activate the rooks to the maximum degree. In "Chess for Life", I quoted
Petrosian who stated that the biggest difference in activity between the
attacking and defending sides is the activity of the rooks. This was his
explanation for this gorgeous defensive manoeuvre against Tal: The typical
approach in such endings is to deploy rooks so that they are active both along
ranks and files. In this way, a rook can both fight for an open file and also
switch to the flank(s) at a moment's notice to create or attack weaknesses
there. A good example of this is to be found in my game against Miezis from
the 2014 Tromso Olympiad: Finding a multi-purpose posts for the rooks is one
part, another crucial part is the disposition of Black's pawns. In order to
allow unfettered movement for the rook from the centre to the flank and then
back, there can't be any pawns in the way! That means that Black cannot both
advance his pawns to gain space and also exploit the superior activity of his
rook. In this game, that mean that if I am to use the 5th rank to swing my
rook from the centre to the kingside, I can't play ...e5 too early... which
also means that I have to watch out for Nd4 from White all the time. In the
game against Miezis, I spent a fairly long time agonising about the move 25...
g6. I felt I needed to get my king involved - as occurred in the game - but 25.
..g6 does of course deny access to the rook on d6 to the 3rd rank squares g6
and h6. In the end, I decided that f6 was all I needed, but it took me a while
to figure that out!} Rd3 30. Re3 Rfd8 31. Kf1 g6 {I was a little unsure about
the optimal way to involve my king in the game. In general, you might feel
that bringing the king closer to the queenside with ...Kf8-e7 might be useful
in preparation for any knight endgames (if White were to attempt to swap off
both rooks and give up the b2 pawn for counterplay against Black's queenside
with king and knight). However, in the sample lines I was calculating, the
Black king ended up being a target when White's knight came to d4 (sometimes
with Nxe6+ desperadoes, sometimes with Nc6 forks) so I decided to activate my
king via g7-f6.} 32. Ke2 (32. Rxd3 Rxd3 33. Ke2 Rd5 34. Rd1 Re5+ {is the point.
Black isn't forced to exchange off rooks}) 32... R3d5 33. f4 {To meet ...Rh5
with h3} (33. Nd4 Rh5) 33... R8d7 {A very careful move} (33... Kg7 34. Nd4 b4
35. Nc6 {Annoyed me} Rd2+ (35... R8d6 36. Nxb4 Rd2+ 37. Ke1 a5 (37... Rxb2 38.
Rxb2 Nxb2 {is the best when Black is still better, but at least White has
managed to exchange his weakness without losing a pawn}) 38. Nc6) 36. Ke1 R8d6
37. cxb4) 34. Re5 (34. Nd4 b4 {is now possible, creating another weakness with
the knight and rooks well-placed to line up on the c3 pawn}) 34... Kg7 35. Kf3
{White was very short of time which led to this tactical mistake.} Rd3+ 36. Re3
Rd1 37. Re1 Rxe1 38. Rxe1 Nxb2 39. Nc5 Rd6 {The rest of the game is just a
matter of keeping an eye on White's breaks and improving Black's position.} 40.
Re2 Nc4 41. Rc2 a5 42. Nb3 Kf6 43. a4 bxa4 44. Nd4 a3 45. Ra2 Rb6 46. Ne2 Rb2
47. Nc1 Kf5 48. Ra1 f6 49. Ne2 e5 50. fxe5 fxe5 51. Nc1 e4+ 52. Kg3 g5 53. Ra2
h5 54. h4 gxh4+ 55. Kxh4 Rxa2 56. Nxa2 Kf4 0-1
[Event "Haarlem Open"]
[Site "?"]
[Date "2017.07.01"]
[Round "2"]
[White "Sadler, Matthew D"]
[Black "Stolwijk, Colin"]
[Result "1-0"]
[ECO "D11"]
[Annotator "Sadler,Matthew"]
[PlyCount "207"]
[EventDate "2017.07.02"]
1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. d4 Bg4 5. h3 Bxf3 6. Qxf3 e6 7. Nc3 a6 8. Bd3
Be7 9. O-O b5 10. b3 O-O 11. Rd1 Nbd7 12. Bd2 Nb6 13. c5 Nbd7 14. b4 e5 15. Be2
Ne8 16. a4 Nc7 {I started the Haarlem tournament rather sluggishly. In this
game, played in the second round, I had built up a pleasant time advantage in
the early opening but had then lost track of my thoughts and had slowed to a
crawl while my opponent had played a series of good simple moves at blitz pace.
My next move was influenced by my mounting frustration with myself: I saw a
complicated attempt to cross Black's obvious plan of ...exd4 followed by ...
Ne6 and ...Bf6 attacking the fixed White d-pawn on d4 and decided to go for it,
irrespective of the loose and vulnerable impression I had of my position after
19.e4. It's a typical practical decision, and it had the merit of slowing my
opponent down to my pace. Objectively however, the plan carries considerably
more risk for White - who loosens and exposes many central and queenside
dark-squares - than for Black whose structure remains solid while his pieces
gain in activity.} 17. dxe5 Nxe5 18. Qg3 Bf6 (18... Nc4 {was also worth
considering, but the text is obvious and was played quickly.}) 19. e4 {Here it
is. The opposition of the Black queen to the White rook on the d-file and the
exposure of Black's central pieces to attack either by Bf4 or f4 gave me hope
of causing Black some problems before he developed fully.} d4 {Played quickly
again which surprised me somewhat. I decided not to examine options any
further and played my planned idea quickly too. As you can see, at this stage
of the game, I was - maybe a little too desperately - trying to change the
course of the game and to make my opponent feel pressure again. My next move
began to make an impression as my opponent became uncertain in a complex
situation. I felt in the next few moves that I was pushing again, even though
my position was tactically extremely vulnerable, and certainly not better
objectively.} 20. Bf4 {aims for a middle road between putting pressure on
Black's position and weakening White's own!} (20. Be3 {is obvious, but to be
honest, I couldn't even get excited about} dxe3 21. Rxd8 exf2+ 22. Kxf2 Rfxd8
23. Kf1 Ne6 {Black's pieces are so well-entrenched, and White's weaknesses are
so obvious, White stands a big risk of emerging with a series of pawns he
can't defend. That wasn't what I was looking for! I was however very intrigued
by}) (20. f4 {which kept me busy in the train for a number of days after the
tournament!} Ng6 {20...Bh4 is strong enough, but this move was my final
conclusion. It gives Black a simple route to a big advantage.} (20... dxc3 21.
Bxc3 Nd7 22. Rxd7 Qxd7 23. Bxf6 {is the simple point}) (20... Bh4 21. Qh2 dxc3
(21... Nc4 {is even stronger according to Komodo. I hadn't realised during the
game how strong this was for Black.} 22. Bxc4 bxc4 23. Be3 Ne6 24. Ne2 d3 {
threatening ...de} 25. g3 Be7 {with ...Rb8 and ...a5 to follow. White's whole
position is going to unravel}) 22. Bxc3 {These were the positions that
attracted me, but with a quick decision required, I preferred the less
commital 20.Bf4} Nd7 23. g3 (23. Bg4 f5 {spoils the fun} (23... Ne6 24. g3 (24.
f5 Nexc5 (24... Ng5 25. Qf4 {is tricky for Black (Bxg7 followed by Rxd7 is a
threat) as well as g3 in some lines}) 25. bxc5 Qg5 {is the typical resource:
the g5 square is very useful!} 26. Bd4 (26. Rxd7 Qe3+) (26. Bd2 Qe7 {leaves
White with many weak pawns}) 26... h5) 24... Be7 25. Bxe6 fxe6 26. Qa2 {
Amazing! Who would have thought the queen would emerge there!} Rf7 27. Qxe6 Qc7
28. axb5 cxb5 29. Rxa6 {is a pleasant edge for White according to Komodo}) 24.
Bxf5 Rxf5 25. exf5 Nd5 {is pleasant for Black}) (23. axb5 Nxb5 (23... cxb5 24.
c6) (23... axb5 24. Rxa8 Qxa8 25. Rxd7 Qa3 26. Rd3 Qc1+ 27. Bf1 {I thought
that the threat of g3 would give me an advantage. Komodo finds} Be1 28. Bxe1
Qxe1 29. f5 Na6 {when Black starts to get at White's weaknesses} 30. Qe5 Qxb4
31. Rd6 Nxc5 32. Rxc6 Nxe4 33. Bxb5 f6 34. Qe6+ Kh8 35. Rc8 Qe1+ 36. Kh2 Qg3+ {
is the logical draw by perpetual according to Komodo}) 24. Bxb5 axb5 (24...
cxb5 {is also good} 25. c6 Qb6+) 25. Rxa8 Qxa8 26. Rxd7 Qa3 {wins for Black})
23... Bf6 24. e5 (24. Bxf6 Qxf6 {when the a1 rook hangs rather unfortunately
after 25.Rxd7}) 24... Nd5 {Thwarting White's ambitions.} 25. Rxd5 cxd5 26. exf6
Nxf6 {I didn't believe in White's compensation here and Komodo agrees}) 21. Be3
(21. Be1 Bh4 22. Qf3 Bxe1 23. Rxe1 dxc3) (21. e5 Bh4 22. Qf3 dxc3 23. Bxc3 Nd5
24. g3 Bxg3 25. Qxg3 Nxc3 {I'd only seen ...Ngxf4 which looked good enough!}
26. Qxc3 Nxf4 {and White's position is destroyed!}) 21... Qe7 22. Bxd4 Bxd4+
23. Rxd4 Ne6 {is tyhe key idea when the fork of d4 and f4 is very upsetting} (
23... a5 {is even stronger according to Komodo}) 24. Rd2 Nexf4 {gives Black a
beautiful hold on the dark-squares with ...Rad8 or ...a5 to follow}) 20... Qe7
{Simple and best.} (20... Bh4 21. Qh2 f6 (21... Qf6 22. Bxe5 Qxf2+ 23. Kh1 dxc3
24. g3 {is unpleasant for Black}) 22. Bg3 Bxg3 23. Qxg3 {followed by f4 should
be an edge for White}) 21. Rxd4 {My opponent caught up with me on time here as
he had missed a tactical detail.} Ne6 (21... Nf3+ 22. Bxf3 Bxd4 23. Bd6 {
was my intention} Qe6 (23... Qd7 24. Rd1 Bxc3 25. Bxf8) 24. Rc1 {when White
wins the exchange back, remaining a pawn up. Black's pieces are also slightly
discoordinated} Ne8 25. Bxf8 Kxf8 26. axb5 axb5 27. Ne2 {In the game, my
opponent played the best move}) 22. Rdd1 Nxf4 23. Qxf4 {By exchanging the
dark-squared bishop, Black has secured (temporary) hegemony over the central
and queenside dark squares. Now, with a loose knight on c3 and 2 of White's
major pieces (Qf4 and Ra1) on dark squares, was the moment for Black to find a
powerful active continuation as the tactical portents were definitely
favourable.} Ng6 (23... Nc4 {was what worried me greatly during the game. In
fact, it seems as if White can defend sort of adequately, though very
uncomfortably.} 24. Qc1 Qe5 (24... a5 {is wrongly timed} 25. axb5 axb4 26. Rxa8
Rxa8 27. Na4 {Komodo, which I hadn't spotted} (27. Bxc4 bxc3 28. bxc6 Qxc5 29.
Bb3 {looked about equal to me, and Komodo finds an accurate method.} Bg5 {
Komodo} 30. Qc2 Qxc6 31. Bd5 Qa4) 27... Rxa4 28. Qxc4) 25. Rd3 a5 {With
White's rook on d3, the knight on c4 is not attacked by the bishop on e2.
However, Black's queen is more exposed on e5 than on e7 which gives White the
possibility to fight back on the central dark squares.} 26. f4 Qc7 27. e5 {
and now} Nxe5 28. fxe5 Qxe5 {is Komodo's line which is very fraught for White!
He'll be lucky if he can give back the piece for an equal position} 29. Qa3
Rfd8 30. Rad1 Rxd3 31. Rxd3 Rd8 32. Rxd8+ Bxd8 33. axb5 Qd4+ 34. Kh1 axb4 35.
Qa4 Qxc3 36. Qa8 Qc1+ 37. Kh2 Qf4+ 38. Kh1 Qc1+ {was one sample drawing line
from Komodo}) (23... a5 {is Komodo's suggestion when he thinks Black is
clearly better! The variations are distressingly simple} 24. axb5 axb4 25. Rxa8
Rxa8 26. Nb1 Bg5 {Best for a subtle tactical reason} (26... Qxc5 27. Rc1 Qe7
28. bxc6 {seems to lose to} Bg5 {but} 29. c7 Bxf4 30. c8=Q+ Rxc8 31. Rxc8+ Qf8
32. Rxf8+ Kxf8 {might end up OK for White}) 27. Qg3 Qxc5 28. bxc6 (28. Qxg5
Nf3+) 28... Nxc6 29. Rd5 Qc1+ 30. Rd1 Qc2 {Black is pressing. All in all, it
seems that White's sequence of moves from move 17 to move 20 ripped out the
heart of his own control of the dark squares and that Black could have
exploited this directly in a couple of ways. The rest of the game was not
exactly easy however, even after the too cautious 23...Ng6. Black is
well-entrenched on the dark squares, has active pieces and targets to aim at
on White's queenside and is generally difficult to push back. It's a
reasonable situation for Black as he gets short of time because the onus is on
White to find something. As you see between move 28 and 32 Black simply moves
his queen from e6 to e5 a number of times in response to White's attempts to
make play.}) 24. Qe3 Qe5 25. Ra3 Rad8 26. axb5 axb5 27. g3 Rfe8 28. Kg2 Qe6 29.
Ra6 Qe5 30. Rxd8 Rxd8 31. Ra3 (31. Nd1 Rd4 32. f4 Qxe4+ 33. Qxe4 Rxe4 {+1.48
according to Komodo! I just wasn't sure... I'm still not!}) 31... Qe6 32. Ra6
Qe5 33. Nd1 Rd4 34. Bf3 Rxb4 35. Rxc6 Rc4 36. Rc8+ Nf8 37. c6 b4 38. Qd3 Rc1
39. Ne3 Rc3 40. Qb1 Qc5 41. Rb8 Bd4 42. c7 Qxc7 43. Qxb4 (43. Rxf8+ {would
have finished cleanly. Bizarrely I spotted the tactic, but got flustered and
ended up snapping the queens of. It was the prelude to an end to a very nervy
and error-filled end of the game played largely on 15 second increments.} Kxf8
44. Qxb4+ Qc5 45. Qb8+ Ke7 (45... Qc8 46. Qd6+) 46. Nd5+ Kd7 47. Bg4+ Kc6 48.
Nb4+ {wins the queen}) 43... Qc5 44. Nd5 Qxb4 45. Rxb4 Bc5 46. Rb2 Rc1 47. Bg4
g6 48. h4 Kg7 49. f4 Rc4 50. e5 Rd4 51. Nf6 Rd8 52. Rb7 Rd2+ 53. Kf1 h5 54. Be2
Rd4 55. Bf3 Rb4 56. Ne8+ Kg8 57. Nf6+ Kg7 58. Rc7 Bb6 59. Ne8+ Kg8 60. Rc8 Rb1+
61. Ke2 Rb2+ 62. Kd1 Ba5 63. Bd5 Rd2+ 64. Kc1 Rd3 65. Ra8 Bb6 66. Rb8 Bf2 67.
Rb7 Rxd5 68. Nf6+ Kg7 69. Nxd5 Bxg3 70. Kd2 Bxh4 71. Ke3 Ne6 72. Kf3 Bd8 73.
Ra7 Bh4 74. Ne3 Bd8 75. Rd7 Bb6 76. Nc4 Bc5 77. Rb7 Kf8 78. Ke4 Be7 79. Ra7
Nc5+ 80. Kf3 Ne6 81. Ra8+ Kg7 82. Nd6 Nd4+ 83. Ke4 Ne6 84. Re8 Bf8 85. Rc8 Be7
86. Ra8 h4 87. f5 Nc5+ 88. Kd4 Nd7 89. f6+ Nxf6 90. exf6+ Kxf6 91. Ra6 Bxd6 92.
Rxd6+ Kf5 93. Ke3 g5 94. Kf2 Ke5 95. Rh6 Kf5 96. Kf3 g4+ 97. Ke3 Kg5 98. Rh8 f6
99. Rg8+ Kf5 100. Rg7 h3 101. Rg8 h2 102. Rh8 Kg5 103. Rxh2 g3 104. Rh8 1-0
[Event "Haarlem Open"]
[Site "?"]
[Date "2017.07.02"]
[Round "6"]
[White "Sadler, Matthew D"]
[Black "Vroombout, Enrico"]
[Result "1-0"]
[ECO "A59"]
[Annotator "Sadler,Matthew"]
[PlyCount "89"]
[EventDate "2017.07.02"]
1. d4 (1. Nf3 Nf6 2. d4 d5 3. Bg5 Nbd7 4. e3 e6 5. c4 Be7 6. cxd5 exd5 7. Nc3
O-O 8. Bd3 Re8 9. Qc2 c6 10. O-O Nf8 11. Rab1 Ne4 12. Bxe4 Bxg5 13. Bf5 Bf6 14.
b4 g6 15. Bxc8 Rxc8 16. Qb3 a6 17. a4 Ne6 18. Rfd1 Bg7 19. Rbc1 f5 20. g3 Qd7
21. Ne2 Nd8 22. b5 axb5 23. axb5 Nf7 24. bxc6 bxc6 25. Nf4 Nd6 26. Nd3 Nc4 27.
Nd2 Nd6 28. Rc2 Ne4 29. Nf3 Qe6 30. Rdc1 Rc7 31. Nf4 Qf7 32. Rxc6 Rxc6 33. Rxc6
Ra8 34. Nxd5 Kh8 35. Rc7 Qg8 36. Rb7 g5 37. Ne7 Qxb3 38. Rxb3 {1-0 (38) Arkell,
K (2400)-Mannion,S (2280) London 1987}) 1... Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6
5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nf3 Nbd7 10. g3 Bg7 11. Kg2 O-O
12. a4 Ra6 13. Qc2 Qa8 14. Re1 Rb8 15. Ra3 Rb4 16. Bd2 Ne8 17. b3 c4 18. bxc4
Qc8 19. a5 Qxc4 20. Rb1 Nc5 21. Rxb4 Qxb4 22. Qa2 Bxc3 23. Bxc3 Qxe4 {A
typical Benko position has resulted from Black's exchange of his dark-squared
bishop for White's queen's knight in order to regain his gambit pawn. The
position is delicate for both sides: White must react smartly to prevent Black
from picking up the d5 pawn as well (which he is threatening to do with ...Nc7
and ...Qxd5) while Black's position is loosened greatly by the absence of the
dark-squared bishop. It's worth spending some time understanding the relative
strengths of both positions: The strength of Black's position rests on 3
factors: 1. Black's queen on e4 is a fantastic piece, pinning the White
knight on f3 (and thus preventing it from playing any positive part in the
game) while attacking the pawn on d5 (which has suddenly become weak after its
support on e4 was kicked away) while tying down the White queen to its defence.
This situation reminds me of the Minority Attack against the Carlsbad
structures of the Queen's Gambit Declined which we analysed in great deal in
"Chess for Life" in the chapter on Keith Arkell. In that opening, once the c6
pawn was captured, the d5 pawn it was supporting tended to disappear too. Take
Keith's game against the Scottish IM Steven Mannion: Here also, White runs the
risk of not just losing 1 pawn back, but 2! 2. Black knight on c5 is another
splendid example of what the Romanian GM and writer Mihai Marin calls "stable
pieces". The knight is well-placed on an outpost from which it cannot be
driven away by pawns. Why is the knight well-placed? In fact it dominates the
White rook very effectively depriving it of access to a variety of
light-squares such as b3 (which means the rook cannot activate itself on the
b-file). The knight also reinforces Black's blockade of White's passed a-pawn
on a5. 3. Black's pawn structure has maintained its integrity through the
opening and early middlegame: compare that to the mess that White has made of
his structure. This restricts the entry points available to White's pieces for
now and keeps Black's king reasonably safe despite the absence of Black's
dark-squared bishop. What has White's position to offer? 1. A passed pawn
on a5. It's a major trump, restricting the activity of Black's rook, while
also making a variety of endings attractive for White. 2. A variety of
tactical factors: the Black rook's position on a6 means that Black's back rank
is open for invasion, the Black king is missing the protection of the
dark-squared bishop, the queen on e4 - while excellently-placed - is
vulnerable to attack by the White rook. In particular, a rook move to the
e-file would win the unprotected e7 pawn behind the Black queen. As we shall
see, during the game I focused on the 2nd point and neglected the 1st and this
led me into some difficulties. So far the chess aspects. As for the
psychological aspects, we enter now a typical sequence in a game between a
high-rated player and his lower-rated opponent. The lower-rated player has
emerged unscathed from the opening and the resulting middlegame position has
limited opportunities for complication: several pieces have been exchanged and
pawn breaks from White are unlikely. In general, the first task of the
higher-rated player in such situations - apart from playing good moves - is to
induce doubt in his opponent. It is essential to make the opponent feel the
complexity of the situation and taste the doubt of choosing between equivalent
continuations. Without this doubt, a sensible 2200 player nowadays is
completely capable of playing such positions to a very good level. Ideally,
the pressure should come from all angles - via the position, and via the clock
. I managed the second part reasonably, driving my opponent onto increments
after having fallen behind on time in the opening phase, but I felt during the
game that I was handling the first part very averagely. I continually felt
that I was a move too late with my threats and as we shall see, I ended up
worse, although not terribly so.} 24. Ba1 {From afar (calculating 20.Rb1) I
was very pleased with this move, which both sets up Qb2 - with the dual threat
of mate on g7 / h8 and invasion on Black's 8th rank - and the unexpected Re3,
hitting the queen on e4 and the pawn on e7 behind it. However, Black turns out
to have an easy way to defend against both threats. At home, I felt that} (24.
Bd4 {might have carried more danger in a practical game} Nf6 (24... Nc7 {
was less disastrous than against 24.Ba1 which is why I decided against 24.Bd4
in the game.} 25. Qb2 Ra8 26. Bxc5 dxc5 {The key defensive point that makes
this playable for Black is} 27. Qb7 (27. Re3 Qb4) 27... Qb4 {which is a
horrible resource to save the day for Black!}) 25. Re3 Qxd5 {Black's standard
"lucky" tactical resource, getting out of White's attack with gain of tempo by
attacking the loose queen on a2} 26. Qe2 {Supports the rook in hitting e7
while introducing the additional threat of Bxc5, exploiting the loose rook on
a6} Rxa5 (26... Ra8 27. Rxe7 {Komodo thinks Black can still hold the balance,
but intuitively it feels awkward for Black with a vulnerable king and White's
passed a-pawn as a distraction.}) (26... e5 27. Bxc5 {is the point of playing
the bishop to d4}) (26... Nfe4 27. Bxc5 Nxc5 28. Rxe7) 27. Rxe7 (27. Bxf6 exf6
28. Re8+ Kg7 29. Qe7 Ne6 {is distressingly safe for Black. Black also
threatens ...Ra3 hitting the knight on f3}) 27... Ncd7 {It feels a little
dangerous for Black, but actually it isn't!} (27... Nce4 28. Qb2 Ng5 (28... Ra2
29. Bxf6) 29. Qb8+ Kg7 30. Qh8+ Kh6 (30... Kxh8 31. Bxf6+ Kg8 32. Re8#) 31.
Qxf6 Nxf3 32. Qxf3 (32. Be3+ Ng5+ 33. Kg1 Qd1+ 34. Kg2 Qd5+ {is also just a
draw}) 32... Qxd4 {still looks like a draw amazingly enough!} 33. Qxf7 Qd5+ 34.
Qxd5 Rxd5) 28. Rxd7 Nxd7 29. Qe8+ Nf8 {unfairly holds for Black, and with his
knight on f3 pinned by the magnificent queen on d5, it will take White too
much time to bring this piece into the game (which he really needs to cause
pain to Black's position) Of course 25.Bxf6 is still possible instead of 25.
Re3, transposing into the game and is probably the best move. Why did I feel
that 24.Bd4 might have been a better practical move than 24.Ba1? Doesn't it
just lead to the same thing? The point is that 24.Ba1 is a clear 50-percenter.
Black just has to spot that 24...Nc7 loses to 25.Qb2 and then he can make the
move 24...Nf6 by elimination ("the other one loses so I have to play this").
After 24.Bd4, it is less clear-cut whether 24...Nc7 or 24...Nf6 is the better
move and the pressure on the knight on c5 gives Black the extra necessity of
checking ideas with Qe2 (as occurred after 25.Re3). In my opinion, 24.Bd4
fulfils the criteria of instilling doubt a little better than 24.Ba1, but I
agree that it isn't a 100% clear thing.}) 24... Nf6 (24... Nc7 25. Qb2) 25.
Bxf6 exf6 {Here however, I lost my way for a few moves. The exchange on f6 has
fundamentally changed an aspect of the position and White needs to understand
whether this should alter his approach to the position. White's general
approach with 24.Ba1 was to play on tactical weaknesses in Black's position -
the back rank unprotected by the Black rook, the long a1-h8 diagonal bereft of
cover by a dark-squared bishop, the exposed queen on e4 and the loose pawn on
e7 behind it - with Black's king as the eventual target. After 25.Bxf6 exf6,
the following has happened. First of all the tactical factors: 1. The
weakness along the long diagonal has been camouflaged. The doubled pawn on f6
blocks the a1-h8 diagonal. 2. Since the pawn on f6 blocks the a1-h8 diagonal,
Black's king has gained a safe spot on g7. This means that Black's weakness on
the back rank is also reduced. At the very least, it will cost White a lot
more effort to achieve something there. 3. Black's weak e7 pawn has
disappeared: Black's queen on e4 is no longer tactically vulnerable to Re3.
Now the positional factors: 4. Black's pawn structure has been ruined. Black
is no longer able to create a passed pawn on the kingside due to his doubled
f-pawns. It also means that losing the d5 pawn is also less serious from a
positional viewpoint. As we shall see in the game, now when Black manages to
capture the d-pawn, he no longer frees a beautiful flowing pawn structure but
simply a rather manky isolated d-pawn. White has much more leeway for mistakes
than before the exchange (thank goodness for me in this game!) Another
important point is that positions without queens automatically become
extremely tempting for White. For example, if we remove the queens from the
board, White has an exceedingly strong outpost on c6 which can no longer be
undermined by ...e7-e6. Once the knight gets to c6, the a5 pawn is protected
which frees the rook to invade Black's position either via the b-file or the
e-file. White's king might also be interested in heading towards b5. In the
game, I appreciated this last change too little. Part of my problem was that
White still has some dangerous threats! I got started on trying to make them
work, and I didn't have the presence of mind to step back at some stage and
consider a different approach. Possibly the result of some nerves, possibly
due to an overwhelming desire to win which interfered with the search for the
best plan in the position.} 26. Re3 {Another 50-percenter, and this time
there's no doubt that it's not the right way to play. White wants to force his
pieces to the 8th rank and Black has a choice between 2 moves: 26...Qa4 and 26.
..Qb4. In fact, Black only needs to spot that 26...Qa4 is awkwardly met by 27.
Qb2 to make the choice for 26...Qb4 relatively obvious (it stops Qb2)} (26. Qd2
{was White's best move, meeting a waiting / consolidating move like} Kg7 {with}
(26... Nd7 27. Qc3 (27. h4 Ne5 28. Qd4 f5 29. Qxe4 fxe4 30. Nd4 {is an edge
for White according to Komodo}) 27... Kg7 (27... Nc5 28. Qd4) 28. Qc8 {is an
interesting attacking attempt} Ra7 29. Re3 Qxd5 30. Re8 {was a line I was
calculating and now only} Qc5 31. Rg8+ Kh6 32. Qe8 Ne5 33. Qf8+ Kh5 34. Nxe5
Qxe5 35. Qg7 Qe4+ 36. Kh3 Qf5+ 37. Kg2 Qe4+ {holds for Black}) (26... Qe8 27.
h4 (27. g4 Qa8 28. Nh4 {was an interesting idea that attracted me. The idea is
that while Black is placing his pieces on the queenside, White opens up the
3rd rank to swing his rook across to the h-file. However, it doesn't seem to
work that well. Even against 28...Nb7!} Nb7 (28... Ne6 29. Kg3 Nc7 {is
Komodo's solution!}) 29. Nf5 gxf5 30. gxf5 Rxa5 (30... Qf8 31. Qb2 {hitting b7
and f6 is quite nasty} Qe7 32. Re3) 31. Rg3+ Kf8 (31... Kh8 32. Qh6) 32. Qh6+
Ke7 33. Re3+ Kd7 34. Qxf6 Qg8+ {followed by ...Qf8 or ...Kc8 holds easily for
Black}) 27... h5 28. Qf4 Qa8 29. Qxf6 Qxd5 30. Qc3 {followed by Kh2 and Ng5
still gives White something to play for thanks to his passed a-pawn.}) 27. Qd4
{I'm not claiming an advantage here for White, but the threat of exchanging
queens on e4 and then playing the knight to c6 IS serious. Komodo's evaluation
jumps to +1.33 if you give White the move again in this position. This means
that Black is forced to regroup his queen and choose himself a new disposition
of his pieces.} Qe8 28. g4 (28. Nd2 {is a different White regrouping made
possible by the queen vacating d2. The knight can come to c4 (attacking d6 and
defending a5) or e4 (if the Black kight moves from c5) while the rook can also
come to f3 attacking f6 together with the queen on d4 and possibly with a
knight on e4} Qb5 29. Rf3 (29. Nc4 Nb3 {followed by ...Nxa5 works for Black
unfortunately}) 29... Nd7 30. Ne4 Qxa5 31. Nxf6 Ne5 32. Ne4 Qa4 {just holds
for Black}) 28... Qd8 29. g5 Nd7 30. Nd2 Rxa5 31. Rxa5 Qxa5 32. Ne4 Qd8 33.
Nxd6 Kg8 {is even, but you can see at least that Black has been put under
pressure from some unexpected areas!}) 26... Qb4 (26... Qa4 27. Qb2 Kg7 (27...
Qxa5 28. Qxf6 Ra8 29. Ng5 Rf8 30. Nxf7 {wins}) (27... Rxa5 28. Qxf6 {is strong
for White as the d6 pawn falls too}) (27... Ne4 28. Qe2) (27... Nd7 28. Qb7
Rxa5 29. Re8+ (29. Re7 Ra7 {is a typical defence for Black: the queen and rook
combine excellently on the a-file.}) 29... Kg7 30. Qc8 {An excellent square
for the queen, which can check a Black king on h6 from c1, or from h3 if the
knight moves from d7} Rc5 {Blocking the queen's access to c1} (30... Rxd5 31.
Rh8 {is a nasty and unexpected line. Qg8+xh7+ is tye deadly threat}) (30... Ne5
31. Rg8+ Kh6 32. Qh3+) 31. Rg8+ Kh6 32. Qe8 {The knight on d7 is pinned as the
Black queen is no longer protected by the rook on a5 which means that Black
cannot defend f7 with ...Ne5. I thought this was just winning but Komodo still
finds a draw!} Rc3 33. Nh4 (33. Qxf7 Rxf3 34. Qg7+ Kg5 35. Qxh7 Rxf2+ {is
Black's simplest way to the draw}) 33... Qg4 34. h3 Qh5 {Attacking d5} 35. Qxf7
Rxg3+ {is just ridiculous!} 36. fxg3 (36. Kxg3 Qg5+ 37. Kh2 Qxh4 38. Qg7+ Kg5
39. Qxd7 Qxf2+ {with perpetual}) (36. Kh2 Rc3 {also leads to a draw}) 36...
Qe2+ 37. Kg1 Qe1+ 38. Kh2 Qf2+ 39. Ng2 Ne5 40. Qf8+ Kh5 41. g4+ Kg5 42. h4+
Kxg4 43. Qc8+ Kh5 44. Qc3 Nf3+ 45. Kh3 Ng1+ 46. Kh2 Nf3+ {with a perpetual...
but good luck finding that during a game!}) 28. Qb8 {and now Black needs to
find the excellent move} Ne4 {blocking the e-file, in order to survive without
too much trauma. Komodo thinks that the repetition 29.Qb1 Nc5 30.Qb8 is the
logical end to the game.} (28... Nd7 29. Qc8 Rxa5 30. Re8 {is the line after
27...Nd7 above (this was the move order in which I'd calculated it)})) 27. Qe2
{My idea, threatening Re8+ and Qe7 but Black has a variety of defensive moves
to anticipate this threat: 27...Ra8, 27...Kg7 and the game continuation,
covering the e7 square and attacking d5 again.} Qb7 28. Qd2 (28. Re8+ Kg7 29.
Rd8 Qxd5 30. Qe8 {was my original intention, but to my horror I now saw that
this wasn't even an interesting attacking attempt} Ne6 {Black's only move} 31.
Qh8+ (31. Qg8+ Kh6 32. Qxf7 Nf4+ (32... Qxf3+ {also wins!})) 31... Kh6 32. h3 {
deals with the threat against the rook on d8 but after} Rxa5 {White has
nothing. ...Ra3 is coming! So it was time to call a screeching halt to the
all-out major pieces on the 8th approach and to try to go back to manoeuvring
out some new advantages. However, I've fiddled around for a few moves and
Black has lined up on my a- and d-pawns so I'm in a much worse situation now
than if I'd played 26.Qd2. What irritated me the most was that with 26.Re3,
I've virtually forced Black into a very solid deployment of his queen to b7 /
a8 instead of making Black think of it himself. In the next stage of the game,
I try to keep the game going while trying not to do anything too disastrous.
The fact that Black's pawn structure has been ruined helps me to do this.
However, objectively Black is heading towards an advantage now.} (32... Nxd8
33. Qf8+ Kh5 34. g4#)) 28... Qa8 29. Re7 (29. Ra3 Nd7 {worried me: the knight
is simply coming to b6! I decided that activity would worry Black more.}) 29...
Rxa5 30. Qf4 (30. Qd4 {was my original intention, but I thought it would be
more challenging if I attacked 2 pawns instead of 1!}) 30... Qxd5 (30... Ra7 {
is possible as} 31. Rxa7 Qxa7 32. Qxf6 (32. Qxd6 Ne4 {wins for Black!}) 32...
Ne4 33. Qd4 Qxd4 34. Nxd4 Nc3 {is better for Black}) 31. Qxf6 Ra8 32. h4 h5 33.
Qg5 {I didn't want to do this of course, but I couldn't see any other way to
get my knight on f3 in the game. Of course, Black should have no problems at
all after the exchange of queens.} Qxg5 34. Nxg5 f6 (34... Rf8 {was what I was
expecting with a very safe position. Black can't really exploit his extra pawn
but White can't do anything either. The text got me vaguely interested}) 35.
Nh7 (35. Ne6 {is an immediate draw, but I thought I could keep things alive
just a little longer}) 35... f5 (35... Ne4 {was the move I'd expected with an
immediate draw after} 36. Rxe4 Kxh7 37. Re6) 36. Ng5 {Objectively, Black is
still 100% fine, but of course with a rook on the 7th and a stable,
well-placed knight on g5 there's a little something to get White interested.
Pretty much anything should work here for Black, but he should just take care
not to let the White king get active. However, play on increments and the
tension and tiredness of the last round began to take its toll.} Ra2 37. Kf3
Nd3 38. Ne6 Nxf2 39. Rg7+ Kh8 40. Rxg6 Nd1 {Essentially the decisive mistake -
I think Black had missed that the king can move forwards out of the mate
threat. After that, it's a very difficult position to hold with just
increments.} (40... Ne4 {was still fine for Black, though it's got a bit more
messy than it should}) 41. Kf4 Rf2+ 42. Kg5 Rf3 43. Kf6 Nc3 44. Kf7 {An
amazing transformation. My parents, watching the game at home couldn't believe
their eyes as the computer had been rather pessimistic about my position until
then!} Kh7 45. Nf8+ 1-0
[Event "15th ROC Nova College 2017"]
[Site "Haarlem"]
[Date "2017.07.01"]
[Round "4"]
[White "Sadler, Matthew D"]
[Black "Klapwijk, Bram"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2684"]
[BlackElo "2201"]
[Annotator "Sadler,Matthew"]
[PlyCount "69"]
[EventDate "2017.??.??"]
1. e4 e6 2. d3 d5 3. Nd2 c5 4. g3 Nc6 5. Bg2 g6 6. Ngf3 Bg7 7. O-O Nge7 8. Re1
b6 9. c3 a5 10. a4 Ba6 11. exd5 exd5 12. Nb1 O-O 13. Na3 Qd7 14. Bf4 Rae8 15.
Qb3 Nc8 16. Nb5 Rxe1+ 17. Rxe1 h6 18. h4 {Black's position is already very
difficult and I had built up a huge time advantage while Black struggled to
find a reasonable way to mobilise his pieces. After Black's next move, I
mentally wrote up 1-0 and looked forward to an early night for once.} Nd8 19.
Ne5 {Hitting the queen and also uncovering the attack of the bishop on g2 on
the d5 pawn. White is winning at least a pawn.} Qf5 {Played quickly (well,
Black didn't have much time left anyway!) Right I thought, time to settle down
and win something juicy. 40 minutes later I was still going and getting
immensely irritated with myself! What went wrong? Essentially of course I lost
concentration. I was so unimpressed with 18...Nd8, I assumed that a clear
refutation should be available, and also - crucially - that it could not be
too difficult. When I struggled to find more than a small advantage by normal
means, switching to accurate calculation was a substantial effort which cost
me much more time than it should have done. Moreover, possibly through
tiredness during the 3rd game of the day, I got incredibly confused by the
defensive capabilities of the knights on c8 and d8. I kept on putting pieces
en prise (particularly on d6) and I kept on forgetting that Black's
light-squared bishop was protected on b7 by the knight on d8. Even worse, at
some stage I cottoned on that the knight on d8 had a very nice square on e6 to
move to after which the bishop on f4 - and by extension the knight on e5 -
suddenly look a little fragile. Take a look at the lines that I calculated
within the first 10 minutes of my reflection (20.Nc7, 20.Bxd5 and 20.Qxd5).
They are not meant to be 100% correct, but just give an idea of the unusual
challenge of this position: This last point - that the knight on d8 also can
play an active role on e6 - is a good example of the effects of my loss of
concentration. If I had dedicated a little thought to understanding the move
18...Nd8 when it appeared on the board, I would have seen that ...Ne6 was the
intention and taken it into account at once in my calculations. Having
dismissed 18...Nd8 as a terrible move, I started to feel aggrieved that Black
was still alive and regard ...Ne6 as a "lucky shot". In the end, I came up
with a sequence of moves that up to move 27 matches the engine's #1 line, but
it had cost me much unnecessary time, energy and calm. And to be honest, it
was a very fraught line! That makes you less secure and sets up the conditions
for an unexpected blunder.} 20. Bf3 {In the end I went for this line, which I
saw as a souped-up Kh2! The bishop is aiming for the h3-c8 diagonal but
without putting the king on the h-file which should make counterplay with ...
g5 less effective than against 20.Kh2. The engine likes it too.} (20. Qxd5 Ne6
{Bizarrely enough, the knights are also mobile! In particular the knight on d8
is annoying, hitting the bishop on f4} (20... Bb7 {was the first bizarre thing:
the bishop is defended on b7 by the knight on d8. To be honest, I kept on
thinking that Nc7 would win a piece and forgetting that the bishop had a safe
retreat square on b7!}) 21. Nxf7 {I wanted this to work: it felt like the
right refutation. And yet, due to the knight on c8, I didn't have access to
the squares I needed!} Qxd5 (21... Nxf4 22. Nxh6+ Kh7 23. Nxf5 Nxd5 24. Nxg7 {
wins}) 22. Bxd5 Nxf4 23. gxf4 Rxf7 {the knight on c8 covers e7 (no Re7) and d6
(no Nd6) and the bishop on a6 covers the knight on c8!} 24. Re8+ (24. Nc7 {
doesn't win the trapped bishop on a6 because of} Bb7) 24... Bf8) (20. Bxd5 g5
21. Be4 Qe6 22. Qxe6 Nxe6 {And again the knight energes, this time with an
advantage to Black! I must have spent a couple of minutes checking and
rechecking this: it didn't fit my view of the position at all for Black to be
able to defeat an obvious, active move like 20.Bxd5 in such an easy way!}) (20.
Nc7 Bb7 21. Nxd5 {Here I was discomfited by the fact that the knight on c8
prevents Ne7+!} g5 {Which I thought was awkward also here just against 20.Bxd5
is not good due to a tactical reason I had not spotted} 22. hxg5 hxg5 23. Ne3
Qe6 24. Qxe6 fxe6 {Winning a piece I thought} (24... Nxe6 25. Bxb7 gxf4 26.
N3c4 {with a clear advantage for White})) (20. Qxd5 Ne6 21. Nxf7 Qxd5 22. Bxd5
Nxf4 23. gxf4 Rxf7 24. Re8+ Bf8 {doesn't win immediately but it does give
White a clear advantage:} 25. Be6 Bxb5 26. axb5 Nd6 27. Rb8 Nxb5 28. Rb7 Nd6
29. Bxf7+ Kg7 30. Rxb6 Kxf7 31. h5 {or Black plays ...h5 and then wins the
h-pawn anyway} gxh5 32. Kg2 Nf5 33. Kf3 {followed by Ra6 is not easy at all
for Black to defend!}) (20. Bxd5 g5 21. hxg5 hxg5 {doesn't win for Black either
} 22. Nxf7 Nxf7 23. Nd6 Ncxd6 24. Bxd6 Rd8 25. Be6 Qf3 26. Re3 Qb7 27. Bd5 Rxd6
28. Re8+ Bf8 29. Bxb7 Bxb7 {is better for White according to Komodo, which is
definitely true but it's not exactly easy and smooth!}) (20. Nc7 Bb7 21. Nxd5
g5 22. hxg5 hxg5 23. Ne3 Qe6 24. Qxe6 fxe6 {is refuted by} 25. Bxg5 Bxe5 26.
Bxd8 Bxg2 27. Nxg2 {opening up the attack on the bishop on e5 and thus saving
the piece! White remains 2 pawns up.}) (20. Kh2 g5 21. Bh3 Qh7 22. hxg5 hxg5
23. Bxg5 Ne6 {Again the knight emerges with a tempo against White's
dark-squared bishop.} 24. Bh4 Nf4 {was something I spent some time on when I
got dissatisfied with the normal options: I was looking for prophylactic ideas
against both ...Ne6 and ...g5. I didn't like the fact that any move of the
light-squared bishop would be met by ...Bf6 and I didn't really want to part
with my light-squared bishop. In fact, White should still be better according
to Komodo but I can understand that I didn't want to enter his #1 line:} 25.
Qd1 Nxh3 26. Kxh3 f6 27. Ng4 Qf5 28. Qe2 Bb7 {and now} 29. Nc7 {followed by
Qe6+ should be very good for White}) 20... Re8 (20... g5 21. hxg5 hxg5 22. Bg4
Qh7 23. Bxg5 {wins easily} Ne6 24. Nxf7) (20... Ne6 21. Bg4 Qf6 22. Nd7) 21.
Bg4 Rxe5 (21... Qxg4 22. Nxg4 Rxe1+ 23. Kh2 Bb7 24. d4 {looked pretty clear to
me}) 22. Rxe5 Qxg4 23. Re8+ Kh7 24. Rxd8 Ne7 (24... Bb7 25. d4 {was the other
line I had calculated. After the text, I was very happy with}) 25. Re8 Nf5 (
25... Qd7 26. Rb8 {was the idea, going after the b6 pawn only after having
knocked the queen away from the kingside.}) (25... Qe2 {was something I hadn't
calculated and that might well have given me a shock.}) 26. Qxd5 Nxh4 {Played
with very little time on the clock. After 25...Nf5, I had said to myself that
I had "at least"} 27. Re3 (27. Qxf7 Qd1+ 28. Kh2 Nf3+ 29. Kg2 Ne1+ 30. Rxe1
Qxe1 {but when thinking about move 27, I suddenly got bizarrely ambitious.
That led to the following howler}) (27. Qxf7 Qd1+ 28. Kh2 Nf3+ 29. Kg2 Ne1+ 30.
Rxe1 Qxe1 31. Qd7 {keeping Black's light-squared bishop under wraps is very
strong}) (27. f3 Nxf3+ 28. Kf2 Ng5 29. Bxg5 hxg5 30. Nc7 Bc8 31. Qxf7 {is
Komodo's #1 way... and there's nothing much to say about that!}) 27... Bc8 (
27... Qd1+ 28. Kh2 Qf1 {is bad news! White has no more than a draw}) 28. Nd6 {
Allowing ...Qd1+-f1 again!} Be6 29. Qe4 Nf5 {Missing his last chance! 29...
Qd1+ 30.Kh2 Qf1 would still work.} 30. Nxf5 Bxf5 31. Qf3 Qh3 32. Qh1 Qg4 33. f3
Qh3 34. Qxh3 Bxh3 35. g4 {Some awful finishing there! It just goes to show how
important maintaining concentration is to good practical play. Reestablishing
lost concentration is extremely difficult as I proved here! I was curious
after the game whether there had been any other previous examples where knight
on c8 and d8 had proved to be strong defensive pieces. There is one line of
the Botwinnik English where Black plays his knights there (as a prelude to
playing ...c6 to drive a White knight away from d5) but normally knights on c8
and d8 are just a sign that things are going horribly wrong! From about 2600
games with Black's knights on c8 and d8, I found these examples I liked! And
of course, this famous example of getting confused by the defensive power of a
knight on the back rank must also be mentioned:} 1-0
[Event "URS-ch sf"]
[Site "Yerevan"]
[Date "1954.??.??"]
[Round "?"]
[White "Kasparian, Genrikh Moiseevich"]
[Black "Khalilbeili, Sultan"]
[Result "1/2-1/2"]
[ECO "C76"]
[PlyCount "81"]
[EventDate "1954.??.??"]
[EventType "tourn"]
[EventRounds "20"]
[EventCountry "URS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O g6 7. d4 Bg7 8. dxe5
dxe5 9. Bg5 f6 10. Be3 Qe7 11. b4 Rd8 12. Qc1 Qf7 13. Rd1 Nge7 14. Na3 b5 15.
Bb3 Be6 16. Rxd8+ Nxd8 17. c4 c6 18. Qc3 O-O 19. Rd1 Nc8 {[#] The knights
cover both the c6 pawn and the entry squares on d6 and b6} 20. Rd3 Re8 21. cxb5
axb5 22. h3 Bf8 23. Nd2 Nd6 24. Bxe6 Qxe6 25. Bc5 N6b7 26. Bxf8 Rxf8 27. Nb3
Nf7 28. Nc2 Nfd6 29. f3 Nc4 30. a3 Ra8 31. Nd2 Nbd6 32. Nb3 Nb7 33. Nd2 Nbd6
34. Kh2 Qe7 35. Qb3 Kg7 36. Nb1 h5 37. Nc3 Qa7 38. Nd1 Qf7 39. Qc3 Ra7 40. Nde3
Qe8 41. Rd1 1/2-1/2
[Event "URS-USA"]
[Site "Moscow"]
[Date "1955.??.??"]
[Round "3"]
[White "Reshevsky, Samuel Herman"]
[Black "Botvinnik, Mikhail"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "59"]
[EventDate "1955.06.29"]
[EventType "team-tourn"]
[EventRounds "4"]
[EventCountry "URS"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.10"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.10"]
[SourceQuality "1"]
1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Nd2 Bg7 6. Ngf3 Nge7 7. O-O O-O 8. Re1
d6 9. c3 h6 10. Nb3 e5 11. d4 b6 12. Be3 Ba6 13. Nh4 Rc8 14. Bh3 Rc7 15. dxc5
dxc5 16. Qxd8 Rxd8 17. Rad1 Rxd1 18. Rxd1 Bc8 19. Bxc8 Rxc8 20. Kf1 Kf8 21. Ke2
Ke8 22. f4 exf4 23. gxf4 f5 24. e5 Nd8 25. Nd2 Rc6 26. Nc4 Nc8 {[#] A classic
example with a starring role for the knight on c8, though to be honest
Reshevsky migth have played on here! He stands clearly better.} 27. Rg1 Kf7 28.
Rd1 Ke8 29. Rg1 Kf7 30. Rd1 1/2-1/2
[Event "CSR-ch int"]
[Site "Brno"]
[Date "1975.05.27"]
[Round "14"]
[White "Jansa, Vlastimil"]
[Black "Taimanov, Mark E"]
[Result "1/2-1/2"]
[ECO "B46"]
[WhiteElo "2540"]
[BlackElo "2580"]
[PlyCount "63"]
[EventDate "1975.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "CZE"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 Nge7 7. Nb3 d6 8. a4
b6 9. Bg2 Bb7 10. O-O Nc8 11. f4 Be7 12. f5 O-O 13. fxe6 fxe6 14. Qg4 Qd7 15.
Bh3 Rxf1+ 16. Kxf1 Nd8 {[#] Moving the knight to c8 was one of Taimoanov's
favourite ideas for developing behind his Hedgehog structure.} 17. Nd4 Bf6 18.
Nxe6 h5 19. Qxh5 Nxe6 20. Qg4 Bxc3 21. Qxe6+ Qf7+ 22. Qxf7+ Kxf7 23. bxc3 Bxe4
24. Bg2 Bxg2+ 25. Kxg2 Ra7 26. Be3 Rc7 27. Bd4 Ne7 28. Rf1+ Kg6 29. Re1 Kf7 30.
Rf1+ Kg6 31. Rb1 Nd5 32. Kf1 1/2-1/2
[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.29"]
[Round "8"]
[White "Jimenez Rojas, Hector"]
[Black "Godoy Bugueno, David A"]
[Result "1/2-1/2"]
[ECO "A36"]
[BlackElo "2350"]
[PlyCount "93"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]
1. c4 c5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 e6 6. O-O Nge7 7. e3 O-O 8. d4
cxd4 9. Nxd4 a6 10. Nde2 b6 11. Rb1 Rb8 12. b3 Bb7 13. Ba3 f5 14. Bd6 Ra8 15.
Qd2 Rf7 16. Rfd1 Nc8 17. Ba3 Qc7 18. f4 Na5 19. Nd4 Bxg2 20. Qxg2 Rb8 21. Rbc1
Qb7 22. Na4 Qxg2+ 23. Kxg2 Nb7 24. Nf3 h6 25. Rd2 d6 26. Nd4 Nd8 {[#] A game
between 2 unknown players, but a nice exposition of our theme, especially as
the knights later move to a7 and b7!} 27. Nb2 Rc7 28. Nd3 Kf7 29. Nb4 Ra8 30.
Nd3 Nb7 31. Nf3 Bf8 32. Rcd1 Na7 {[#]} 33. Bb2 Nc5 34. Nf2 b5 35. Rc2 Nc6 36.
Ba3 b4 37. Bb2 a5 38. Nd4 a4 39. Nb5 axb3 40. axb3 Rd7 41. Nd4 Na5 42. Nd3 Rdd8
43. Nxb4 Naxb3 44. Nxb3 Nxb3 45. Nd3 Rdc8 46. Kf3 Ra6 47. Rc3 1/2-1/2
[Event "Munich"]
[Site "Munich"]
[Date "1989.??.??"]
[Round "?"]
[White "Hickl, Joerg"]
[Black "Van der Sterren, Paul"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2500"]
[BlackElo "2500"]
[PlyCount "88"]
[EventDate "1989.04.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[EventCategory "10"]
[SourceTitle "CBM 013"]
[Source "ChessBase"]
[SourceDate "1989.12.01"]
[SourceVersion "1"]
[SourceVersionDate "1989.12.01"]
[SourceQuality "1"]
1. g3 d5 2. Bg2 e5 3. d3 Nc6 4. c3 Be6 5. Nf3 f6 6. b4 Qd7 7. Nbd2 Nh6 8. Qc2
Nf7 9. Bb2 a5 10. a3 Be7 11. O-O O-O 12. e4 dxe4 13. dxe4 axb4 14. cxb4 Rfd8
15. Rfd1 Na7 16. Nf1 Qc6 17. Qxc6 Nxc6 18. Ne3 Rxd1+ 19. Rxd1 Na7 20. Bf1 Nc8
21. Nd5 Bd6 22. Bc4 Nd8 {[#] The knights cover every tactical trick that White
can throw at the Black position!} 23. Nh4 c6 24. Ne3 g6 25. f4 exf4 26. gxf4
Kf7 27. f5 Bxc4 28. Nxc4 Be7 29. e5 b5 30. exf6 bxc4 31. fxg6+ hxg6 32. fxe7
Nxe7 33. Rc1 Ne6 34. Rxc4 c5 35. Nf3 cxb4 36. Ne5+ Ke8 37. Rxb4 Kd8 38. Rb6 Nf4
39. Rf6 Ra4 40. Nc6+ Nxc6 41. Rxc6 Kd7 42. Rc2 Ke6 43. Rd2 Kf5 44. Kf2 Ke4
1/2-1/2
[Event "Bundesliga 1617"]
[Site "Germany"]
[Date "2017.04.29"]
[Round "13.2"]
[White "Anand, Viswanathan"]
[Black "Ruck, Robert"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2776"]
[BlackElo "2566"]
[Annotator "Sadler,Matthew"]
[PlyCount "86"]
[EventDate "2016.09.18"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "Mega2017 Update 28"]
[Source "Chessbase"]
[SourceDate "2017.05.05"]
[SourceVersion "1"]
[SourceVersionDate "2017.05.05"]
[SourceQuality "1"]
[WhiteTeam "Baden-Baden"]
[BlackTeam "Schwegenheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]
{While idly flicking through recent games of Vishy Anand, my eye was drawn to
the position on move 24 in his game against Robert Ruck. It reminded me
strongly of a very impressive game that Gawain Jones had played against Boris
Gelfand at the 2013 London Classic.} 1. e4 c6 (1... c5 2. Nf3 d6 3. Bb5+ Bd7 4.
Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. Re1 e6 8. d4 cxd4 9. cxd4 d5 10. e5 Ne4 11.
Nbd2 Nxd2 12. Bxd2 Be7 13. Rc1 O-O 14. Rc3 Rac8 15. a3 Nb8 16. Rd3 Qb5 17. Rb3
Qc6 18. Ng5 Bxg5 19. Bxg5 Nd7 20. Qg4 f5 21. Qh4 Rfe8 22. Bf6 Nf8 23. Bxg7 Kxg7
24. Qf6+ Kg8 25. h4 Rc7 26. Rg3+ Ng6 27. h5 Rf8 28. Qg5 Rg7 29. Rc1 Qb6 30.
hxg6 Rxg6 31. Qh4 Rxg3 32. Qxg3+ Kh8 33. Qh4 Qd8 34. Qxd8 Rxd8 35. Rc7 Rg8 36.
Rxb7 Rg4 37. Rxa7 Rxd4 38. b4 Rd1+ 39. Kh2 d4 40. b5 d3 41. Rd7 d2 42. a4 Kg8
43. a5 Rb1 44. b6 d1=Q 45. Rxd1 Rxd1 46. b7 {1-0 Jones,G -Gelfand,B London
2013 The game made an impression on me because I had considered the opening
position after move 12 to be completely harmless. And yet just 10 moves later,
no less than Boris Gelfand's kingside was being ripped apart! If I'd still
been a professional, I would have analysed the game to understand it better.
As it is, I simply filed the game away in my mind with the following
characteristics: 1. French central pawn structure (White pawns on d4,e5 vs
Black pawns on d5 and e6) 2. White's light-squared bishop has been exchanged
(should mean severely reduced attacking chances on the kingside) 3. White
plays Ng5 eliciting ...Bxg5 from Black. 4. The resulting position with a
dark-squared bishop vs a knight on d7 and a White queen and rook active on the
3rd and 4th ranks is very dangerous for Black! So you can imagine how
interested I was when I saw Vishy's game, especially because my first
impression was that Black had kept the balance all the way. Same structure,
same piece configuration, different outcome - what were the key differences?})
2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Ne7 7. c3 Ng6 8. Re1 Be7 9. Bd3
Bxd3 10. Qxd3 Nh4 11. Nxh4 Bxh4 12. Nd2 Qb6 13. Qh3 Be7 14. Qg3 O-O 15. Nf3 Kh8
16. h4 c5 17. Rd1 Rac8 18. b3 cxd4 19. cxd4 Rc2 20. Ng5 Bxg5 21. Bxg5 Rfc8 22.
Rd3 Qb4 23. Qf4 Qf8 {The last 2 moves - White attacks a kingside target (f7)
with his queen, Black defends it with his own queen - are the start of a
recurring theme. In contrast to Jones-Gelfand, Ruck has had the chance to
bring his queen back to bolster his kingside defences. However, the Black
queen's limited mobility - compared to White's queen - affects the value that
Black can extract from his control of the c-file. Take this variation:
Black's control of the c-file is another interesting point. Once Black's queen
has disappeared to the kingside, it isn't easy to see how Black can safely
make positive use of this achievement. Take this variation: As we have seen
however, Black's control of the c-file does give him the "panic button" option
of ...R8c3 to exchange off the rook on g3 and dim the power of White's
kingside attack. Most importantly however, Black's control of the c-file acts
as a wall, preventing White from attacking Black's position via a second front.
White will have to do his stuff entirely on the kingside, White will never
take control of the c-file if Black just stays where he is. And remember, the
rook on c2 does attack various points in White's position - a2 and f2, close
to the White king. At the moment, the rook is too far ahead of the rest of
Black's forces to be able to combine against a target, but give Black some
freedom and a Black queen in particular might be able to jump out and assist
the rook. For the moment however, White is the one in play. How can he create
some threats on the kingside?} 24. Rg3 {In the game, Black played the very
interesting 24...h6, upping the pace of the game by forcing White to take
immediate action. I wondered however how White was planning to proceed if
Black had simply waited, sitting contentedly on his control of the c-file. I
came up with the following: In other words, danger is lurking if Black trusts
too much in the solidity of his kingside structure. From this point of view,
24...h6 is extremely well-timed. It offends the basic principle that you
should not move pawns in front of your king, and it is counter-intuitive to
force White to play his big attacking move. However, by forcing it before
White has fully brought all his troops into position, Black gains the
opportunity for a strong defensive structure.} (24. Rf3 Kg8 25. Rg3 R8c3 {
This is always an interesting little toss-up: Black takes the wind out of
White's kingside initiative by swapping off the dangerous rook on g3 but
thereby also weakens his grip on the c-file.} 26. Rxc3 Rxc3 27. Rc1 Qc8 {
The Black king is protecting g8 here which means the queen is free to join in
the fight for the c-file}) (24. h5 {This seems very natural when you see in
the game that 24.Rg3 was well met by 24...h6. However, here 24...h6 can be
played with an additional point} h6 25. Bh4 Re2 {The White bishop is
poorly-placed on h4, exerting no influence on the c1 square and the fight for
the c-file. This gives Black some extra freedom for manoeuvre} 26. Qf3 (26. Rc1
Re4) 26... Rcc2 27. Rc3 Red2 28. Rxc2 Rxc2 29. Bg3 Kg8 {looks pretty balanced.
At some stage, Black may get brave enough to transfer his knight to c6 to put
pressure on d4}) 24... h6 (24... R8c3 {is a natural defensive move, swapping
off one of White's most important attacking units on the kingside. However
after} 25. Rxc3 Rxc3 26. Rc1 {Black cannot maintain his control of the c-file
with 26...Qc8 as the f7 pawn hangs. So Black has to concede control of the
c-file with 26...Rxc1+ 27.Qxc1 which gives White a little edge in the endgame})
(24... Rb2 25. Rc1 Rbc2 (25... Rxc1+ 26. Qxc1 Rxa2 27. Rc3 Nb6 28. Rc7 {
followed by Be7-d6 is winning for White.}) 26. Rxc2 Rxc2 {This has not been a
clever exchange for Black: he has loosened his grip on the c-file in order to
exchange White's poorest piece: the inactive rook on a1. White now has time to
intensify his kingside pressure with some typical manoeuvres:} 27. Qg4 h6 28.
Be7 Qg8 29. Qf4 {threatening Bf6} Kh7 30. h5 {Bf6 is coming next move anyway}
Qe8 31. Bf6 gxf6 32. exf6 Nxf6 33. Qxf6 {with a big advantage for White}) (
24... Z0 25. h5 {Note that Komodo sees h6 as a big threat and h6 ...g6 as a
significant shift in White's favour. I'm not 100% sure: I don't see how White
breaks through in this situation: I much prefer to angle for Bf6 with a pawn
on h5.} Z0 (25... h6 {as Ruck played is no longer playable with the pawn on h5}
26. Bf6 {Ruck's resource 26...Nxf6 27.exf6 g6 is no longer available with the
pawn on h5}) 26. Qg4 {Now things start to get worrying for Black.} Z0 27. Be7 (
27. Rf1 {was my absolute perfect setup, but it is not strictly necessary:} Z0
28. Be7 Qg8 29. Qf4 {threatening h6} Qe8 30. Rxg7 Qxe7 (30... Kxg7 31. h6+) 31.
Qh6 Nf8 32. Rg3 {wins} Ng6 33. hxg6 fxg6 34. Rxg6) 27... Qg8 28. Qf4 (28. Qh4 {
is actually Komodo's favourite with similar ideas, but also the additional
possibility of invading on e7:} R8c3 29. Rxc3 Rxc3 30. Bb4 Rc2 31. Qe7) 28...
Qe8 29. Qg5 (29. Rxg7 {doesn't work here yet} Qxe7 30. Rxf7 (30. Qh6 Rc1+ 31.
Rxc1 Rxc1+ 32. Kh2 Qh4#) 30... Rf8 31. Rxe7 Rxf4 32. Rxd7 Rfxf2 {is just a draw
}) 29... g6 (29... Qg8 30. h6 g6 31. Bf6+ {is the cute refutation}) 30. Rh3 {
is very dangerous.}) 25. Bf6 {Forced} (25. Rh3 Kg8 26. Qh2 {maintains the
bishop on g5, but loses something else!} hxg5 27. hxg5 Rc1+) 25... Nxf6 26.
exf6 g6 {This defensive structure is a definite improvement for Black over the
previous situation. Before he needed queen and king to defend f7 and g7 and a
knight on d7 to cover f6. Now Black's pawn structure is taking the strain: the
pawn on g6, defended by the pawn on f7 blocks a White major piece on the
g-file while White's own pawn on f6 covers Black's f7 pawn (a theme we will
see in a number of subsequent variations). Black's queen on f8 is still
restricted by the White queen, but only to the defence of the pawn on h6. This
pawn can also be covered by the king from h7 so this pressure is fairly weak.
That means that the Black queen is now much more likely to spring out and
harry White's position, particularly from b4. In the game, Anand played 27.h5
which while whizzing through the moves, felt a little hasty. After 27...g5,
Black's queen is freed at once from the defence of the h6 pawn. It seems much
more natural to extract ...Kh7 first from Black and only then to play h5.
Especially as White has a very obvious move at his disposal: 27.Re1,
activating White's worst piece.} 27. h5 (27. Re1 {This seemed like a natural
improvement on 27.h5, bringing White's only inactive piece into play and
introducing the motif of Rxe6.} Kh7 {The most straightforward, defending h6
and thus freeing the Black queen for queenside counterplay} (27... Rxa2 {
Another example of the immutable truth in this game: don't loosen your grip on
the c-file!} 28. Rxe6 {The one weak point to Black's new defensive structure:
the f7 pawn can be overloaded in its defence of the e6 and g6 pawns} fxe6 (
28... Ra1+ 29. Kh2 Rcc1 30. Rxg6 fxg6 31. Re8 {is the beautiful justification
of 27.Re1}) (28... g5 29. hxg5 fxe6 30. g6) 29. Rxg6 Kh7 30. Rg7+ (30. h5 {
was another thought of mine, but Komodo less impressed} Rcc2 31. Rg7+ Qxg7 32.
fxg7 Rxf2 33. g8=Q+ Kxg8 34. Qb8+ {leads to a draw by repetition}) 30... Qxg7
31. fxg7 Kxg7 32. Qd6 Kf6 33. g4 {is a clear advantage for White according to
Komodo}) (27... R8c3 {A typical idea from Black, looking to exchange off one
of White's dangerous attacking pieces on the kingside.} 28. Rxc3 Rxc3 29. Rc1 {
This idea again: the Black queen is tied down to the defence of the h6 pawn
and thus cannot assist in the fight for the c-file} Rxc1+ 30. Qxc1 {White's
queen keeps the Black queen passive by tying it to the defence of the h6 pawn.
Once the rooks are exchanged, the difference in activity becomes clear.}) (
27... R8c6 {After examining 27...Kh7, it probably occurs to you that the king
would be much better placed on h8 rather than h7 after the standard attacking
sequence h5 ...g5, f4 ...gxf4. With the king on h8, Rg7 does not arrive with
check which gives Black an extra tempo for counterplay. 27...R8c6 prevents
Rxe6, and introduces the idea of ...Qd6 once the pressure against h6 is
neutralised. It also tempts White to play h5, without Black having first
played ...Kh7. Komodo's #1 choice 27...a6 has the same purpose.} 28. h5 (28. b4
{was one of my ideas idea, aiming to follow up with a3 and stop the queen from
accessing the queenside dark-squares (a3 & b4) from which she helps to laucn
counterplay.}) (28. a3 {a similar idea to 28.b4}) 28... g5 29. Qe5 Qb4 {
is the idea. Black wants to play this position a tempo down (with the king on
h8 instead of h7) in comparison to 27...Kh7. This means that White's Rg7 does
not come with check which should favour Black} 30. f4 gxf4 31. Rg7 {is still
equal according to Komodo, but Black is then drawing extremely comfortably} Qd2
32. Rf1 Qe3+ 33. Qxe3 fxe3 34. Rxf7 Rc1 35. Re7 e2 36. Re8+ Kh7 37. Re7+ {
and a draw by perpetual In any case, 27.Re1 looks like a very reasonable
attempt for White. The game continuation was less fortunate, though it was
only after switching on the engine that the truth became clear!}) (27... h5 28.
Re5 {felt very risky!}) 28. h5 (28. Qe3 {preparing h5 followed by f4} Qd6 (
28... h5 {is Komodo's first reaction. Not sure}) (28... R8c3 29. Qxc3 Rxc3 30.
Rxc3 Qb4 {looked decent to me. Komodo prefers Black slightly}) 29. h5 g5 {
looked the most natural to me, to hold back f2-f4} 30. f4 R8c3) 28... g5 29.
Qe5 Qb4 30. f4 {Crisis in the position! In fact, Black has excellent defensive
chances! One of the main reasons for this are White's pawns on f6 and h5. In
particular the pawn on h5 takes away White's best avenue for attacking the h6
pawn! White needs these pawn moves to crack open the Black position, but after
that they just get in the way!} Rg8 {was my favourite idea. It's not bad} (
30... Qd2 {Here we see the value of the rook on c2: Black's pieces have caught
up with it and can combine with it against White points on the second rank} 31.
fxg5 hxg5 32. Qxg5 (32. Rxg5 Qf2+ 33. Kh2 Qh4+ {is at least a draw}) 32... Qxg5
33. Rxg5 {feels a bit better for White}) (30... Rc1 31. Rxc1 Rxc1+ 32. Kh2 Qe1
(32... Re1 33. Qc7) 33. Qxe1 Rxe1 34. fxg5 hxg5 35. Rxg5 {again looks a bit
better for White}) (30... Qxe1+ 31. Qxe1 Rc1 32. Kf2 (32. Qxc1 Rxc1+ 33. Kf2
Rh1 {missed this! Komodo says slight edge for Black!} 34. fxg5 Rxh5 35. gxh6
Rf5+ {is the nasty point when f6 and h6 fall}) 32... Rxe1 33. Kxe1 Rc1+ 34. Kd2
(34. Ke2 Rc2+ 35. Kf3 Rc3+ 36. Kg4 Rc2 37. fxg5 {I wasn't sure about this.
Komodo says 0.00} Rf2 {The key idea, delaying ...hxg5. I hadn't spotted this
one: It's just very hard to do anything constructive as any rook move is met
by ...Rxg2+}) 34... Rf1 {which looks fairly even}) (30... gxf4 31. Rg7+ Kh8 {
is also equal according to Komodo. I didn't dare believe!} 32. Re3 (32. Rf1 Qd2
{with ...Rg8 to follow if White doesn't act}) 32... fxe3 33. Qf4 Qe1+ 34. Kh2
Rxg2+ 35. Rxg2 Qb1 36. Qg3 (36. Qxe3 Qc1) 36... Qh7 37. Qxe3 Rc2 {Not easy
though!}) 31. f5 (31. fxg5 hxg5 {is a clear advantage for Black according to
Komodo. Again take a look at those f6 and h5 pawns: no way through for White!})
31... exf5 32. Qxf5+ Kh8 33. Rd1 {and now} (33. Qxc2 Qxe1+ 34. Kh2 Qe6) (33.
Rge3 Qd2 34. Qxd5 Qf2+ 35. Kh2 Qh4+ 36. Kg1 Qf2+ {is a draw by repetition})
33... Rd2 (33... Qd6 {was my idea and is also not bad}) 34. Rxd2 Qxd2 35. Qxd5
Re8 {is Komodo's path to the draw}) 27... g5 28. Qe5 Qa3 {Komodo is already
claiming a big advantage for Black! Of course, in comparison to 27.Re1 Kh7,
the king is ideal on h8 and Black's c-file counterplay is coming much quicker
(with check, due to the position of the rook on a1)} 29. f4 {3 consecutive
mistakes according to Komodo!} Rc1+ (29... Qb2 {was in fact winning for Black
according to Komodo! Doesn't look remotely like it, but in fact, Black's king
is much safer than White's: the f6 and h5 pawns shield Black's king but have
opened up White's king!} 30. Re1 Rc1 31. Rxc1 Rxc1+ 32. Kh2 Qb1 33. Rf3 Rh1+
34. Kg3 Rxh5 {taking pawns, defending the Black king and threatening ideas
like ...gxf4+. What a move!} 35. Qb8+ Kh7 36. Qf8 Qe1+ 37. Rf2 gxf4+ 38. Kf3
Qe3+ 39. Kg4 Qg3+ 40. Kxh5 Qg5# {In the game, Black steered the game to a draw}
) 30. Rxc1 Qxc1+ 31. Kh2 Qxf4 32. Qxf4 gxf4 33. Rg7 Rc2 34. Kh3 Rxa2 35. Rxf7
Kg8 36. Rxb7 a5 37. Rg7+ Kf8 38. Rg6 Kf7 39. Rxh6 Rd2 40. Kg4 Rxg2+ 41. Kxf4
Rf2+ 42. Ke5 Re2+ 43. Kd6 Re4 1/2-1/2
[Event "Sarajevo Bosnia 30th"]
[Site "Sarajevo"]
[Date "2000.05.19"]
[Round "3"]
[White "Shirov, Alexei"]
[Black "Topalov, Veselin"]
[Result "1-0"]
[ECO "C13"]
[WhiteElo "2751"]
[BlackElo "2702"]
[Annotator "Sadler,Matthew"]
[PlyCount "53"]
[EventDate "2000.05.17"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BIH"]
[EventCategory "19"]
{While casually browsing through a compilation of positions, I came across
this unusual position from the game Shirov-Topalov Bosnia 2000. The game was
given as an example of a pawn wedge in the enemy camp which is quite
understandable when you see the rest of the game! It's worth playing it
through without comments just to enjoy the sheer power of Shirov's play.
Irresistible! However, something troubled me. If you ask me what the best
move in the position is after Black's 13th move, then my intuition screams out
14.g4! 14.d6 feels wrong to me, despite Shirov's impressive victory. It seemed
worthwhile then to examine the position a little further and evaluate how far
off my intuition is!} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6.
Bxf6 gxf6 7. Nf3 a6 8. c4 f5 9. Nc3 Bf6 10. Qd2 c5 11. d5 O-O 12. O-O-O e5 13.
h4 b5 {First of all, let's take a good look at the position after 13...b5. The
most notable features of this position are: 1. Black's central / kingside
pawn structure e5,f5,f7. A normal Black position would see Black's f5 pawn
back on g6 and the bishop on g7. Black's position doesn't look any worse for
it, but there is a subtle difference: Black's e-pawn is less mobile. If Black
plays ...f7-f5 to support ...e5-e4, then White's reply Ng5 eyes a panoply of
weak central and kingside light squares. In particular of course, he has the
e6 square in his sights which can be very unpleasant for Black. In our pawn
structure, Black's damaged kingside pawn structure nurses 1 big advantage: he
has achieved ...f5 supporting ...e5-e4 without weakening e6! As we shall see
in many variations, in this structure a knight on g5 can only go backwards
when it is chased away! The mobility of the e-pawn in this structure is the
enabler for the next key feature of the position 2. Black's dark-squared
bishop Of course Black does have the advantage of the bishop pair, but the
bishop on c8 is not a particularly impressive piece at the moment. After ...
e5-e4 however, Black's dark-suared bishjop would make any King's Indian
player's heart beat faster. The bishop is unchallenged along the long diagonal
and its field of influence reaches as far as b2 where it affects the White
king which leads to our next feature 3. The kings have castled on opposite
wings As we saw in the previous point, Black has an easy way of starting up
some worrying pressure against White's king, however the fact that White's
king is on the queenside gives White some satisfyingly violent ways of
storming Black's kingside. The more space an opponent has, the easier he is to
attack with your pawns which is why the move g4 springs out at you. White
exploits the advanced doubled pawn on f5 as a nearby pressure point. White has
a substantial amount of light-square control in the position. The pawn on d5
in particular covers 2 key development squares for Black's queenside minor
pieces: c6 (for the knight on b8) and e6 (for the bishop on c8). g4 aims to
loosen Black's control of the e4 square by removing or deflecting the f5 pawn
and by so doing open up the b1-h7 diagonal for White's pieces (the bishop on
f1 for example) which is a nice incision route into Black's kingside. If
Black's pawn leaves f5, then ...e5-e4 is difficult to achieve; if Black
ignores the attack and plays ...e5-e4 anyway, then the stakes are raised
because Black's support of his e4 pawn will collapse very quickly after gxf5.
Black will need to develop his counterplay very quickly and achieve something
concrete before his centre melts away 4. The disruptive ...b5-b4 Something
that took me a while to notice. Black's last move ...b7-b5 feels a little like
a desperate attempt to open up the queenside, but in fact its main point is
the irritating ...b5-b4, forcing the knight to move either to the side (Na4)
where it's influence is dubious and where it can also be a target or to e2
where it (temporarily) gets in the way of White's other pieces. Weighing up
all these factors, how do we look at the move 14.d6? First of all, I still
don't like giving up so much of White's light-squared control. After 14.d6,
Black gains extra development options for his pieces (although as we saw in
the game, it's not as simple as it seems to make use of that). Moreover, I
still don't like the fact that Black can play ...e4 and set up his centre
without yet facing any resistance from White. However, what 14.d6 does offer -
which 14.g4 does not - is a square on d5 for the knight on c3 when it gets
tickled by ...b4. So this seems to be the fuindamental positional point you
have to weigh up. What is worth more: a good central position for the knight
on c3 after ...b4, or the time gained by starting violent kingside play
immediately? Let's start by taking a look at the natural continuation that
just popped into my head when looking at 14.d6 and fuelled my doubts:} 14. d6 (
14. g4 b4 {chasing the White knight away from e4} (14... e4 15. Ng5 h6 16. gxf5
hxg5 17. hxg5 Bxg5 18. Rg1 f6 19. Nxe4 {threatening f4}) 15. Ne2 (15. Na4 e4
16. Ng5 h6 {This felt very strange, but the idea is simply to stop the knight
attacking e4 so that Black can take the pawn on g4 Again a proud moment for me
as I understopd quite quickly that this was fine for Black. It feels very
strange, but the idea is simply to stop the knight attacking e4 so that Black
can take the pawn on g4} 17. gxf5 (17. Nh3 fxg4 18. Qxh6 (18. Nf4 Qd6 {
followed by ...Be5. So hard for White to get at the Black king!}) 18... Bg7 19.
Qh5 Qf6 (19... gxh3 20. Bxh3 {might offer chances I thought, but I wasn't
happy about 19...Qf6. Komodo's evaulation shocked me though: completely
winning for Black!}) 20. Ng5 Qf4+ 21. Kb1 Bf5 {...Nd7-f6 trapping the queen is
coming!}) 17... hxg5 18. hxg5 Bxg5 19. Rg1 f6 20. Nxc5 (20. d6 Kh7) 20... Bxf5
{Just looked good for Black. Komodo shocked me with a perpetual!} 21. Bh3 {
Komodo (missed that)} Bxh3 22. Nxe4 Nd7 23. f4 Qc7 24. b3 Kf7 25. fxg5 Qe5 26.
gxf6 Qa1+ 27. Kc2 Qxa2+ 28. Kc1 Qa1+ {is Komodo's miracle perpetual!}) 15... e4
16. Ng5 h6 17. gxf5 (17. Nh3 fxg4 18. Nhf4 Bxh4 {Komodo! Followed by ...Bg5
cementing the Black kingside!}) 17... hxg5 18. hxg5 Bxg5 19. Rg1 f6 20. d6 {
Interested me. Komodo thinks White is doing quite OK as his knight can come
into f4} Kh8 (20... Bxf5 21. Rxg5+ fxg5 22. Qd5+) (20... Ra7 {seemed most
natural to me. I was looking for all sorts of violent ideas with White but
couldn't make them work, but Komodo just wants a slow build up} 21. Kb1 Rg7 22.
Qd5+ Rff7 23. Qxc5 Nd7 24. Qxb4 a5 {was the kind of thing I got analysing with
Komodo. Komodo really likes White, but it feels very fraught to me. A slight
mistake and Black's 2 bishops and extra piece are going to tell! 1-0 (24)
Shirov,A (2751)-Topalov,V (2702) Sarajevo 2000 [Sadler,Matthew]}) 21. Nf4 Bxf5
22. Rh1+ Kg7 23. Bh3 Qd7 24. Rdg1 Rh8 25. Qd5 Rxh3 26. Rxh3 Bxh3 27. Rxg5+ fxg5
28. Qxg5+ Kf8 29. Qf6+ {is a sample Komodo perpetual All in all, I'm still
somewhat undecided as to which is the best move but I have certainly got a
better idea of the dynamic potential of Shirov's move. 14.g4 tries to broaden
out White's existing light-square predominance, but 14.d6 introduces all sorts
of new elements into the position: a knight jump to d5 (aiming for e7 with the
support of the pawn on d6) and the opening of the a2-g8 diagonal for the
bishop on f1 after cxb5. It's interesting for me that I underestimated White's
attack from both sides, maybe over-influenced by the optical aspect of that
enormous bishop on d4! The more ideas you can shove into a position, the more
confusing the defensive task and from that point of view, 14.d6 is a much
better move than 14.g4!} Ke8 30. Qh8+ Kf7 31. Qh5+ Kg7 32. Qg6+ Kf8 33. Qf6+ {
is a sample Komodo perpetual}) (14. cxb5 e4 {is not something I could do as
White in a practical game!}) 14... Nc6 (14... e4 {The only serious move as far
as I'm concerned. Sakaev also suggests 14...Nd7 which feels all wrong to me,
but conceals a nice tactical point:} 15. Ng5 {Again we'll start with the most
natural idea} (15. Qd5 {During my analysis of 15.Ng5, I became discouraged at
a number of points and tried to make this surprising idea work. White isn't
trying to use d5 for his knight, but for his queen! The main justification is
that 15...Ra7 16.Qxc5 is strong for White as the queen cunningly steps aside
and frees d5 for the White knight on c3 on the next move.} Bxc3 (15... b4 {
attracted me a lot when I saw it} 16. Qxa8 (16. Nxe4 fxe4 17. Qxe4 {I thought
this would be quite pleasant for White, but I'd obviously missed something} Re8
18. Qxa8 Qa5 {wins for Black!} 19. Kb1 Bxb2) 16... bxc3 17. Qxb8 cxb2+ (17...
Qa5 18. Qb3 cxb2+ 19. Kb1 Bd7 {worried me for White, but it's nothing} 20. Nd2
Ba4 21. Qg3+ {the use of having an open Black king!}) 18. Kb1 exf3 19. gxf3 {
looked quite good for White}) (15... Qa5 {is similar to 15...Bxc3. I liked to
have the option of playing ...Qf6 but Komodo doesn't see the need}) 16. bxc3 (
16. Qxa8 Qb6 {Komodo Komodo, and rather strong!} (16... Qf6 17. bxc3 Qxc3+ 18.
Kb1 Qb4+ (18... Be6 19. Rc1 {ruined the perpetual I thought} Qb4+ 20. Ka1) 19.
Kc2 Be6 {was what I was looking for. I was sure this would be drawn. Komodo
says 0.00} 20. Rb1 Qa4+ 21. Kc1 Nd7 22. Qc6 Qa3+ 23. Kd1 Qa4+ 24. Kc1) 17. Qd5
Be6 {The queen can't get back!}) 16... Qa5 17. Ne1 {Komodo. I'd missed this} (
17. Kb2 b4 {looked good for me}) (17. Qd2 Nd7 {looked nice for Black} (17...
exf3 18. Qg5+ Kh8 19. Qf6+ {Covering c3} Kg8 20. gxf3)) 17... Bd7 {with ...Nc6
to follow is pretty decent for Black} 18. Qxa8 (18. Rh3 Nc6) 18... Nc6 19. Qb7
Qxc3+ 20. Nc2 Nb4 21. Rd2 Nxc2 22. Rxc2 Qe1+ {is a draw by repetition
according to Komodo}) 15... Bd4 {This was it. After opening the h8-a1 diagonal
with tempo, Black places his bishop in the middle of the board, cutting off
the d-pawn from the rest of White's army. Moving the bishop to d4 also has a
number of sneaky points when it comes to dealing with White's attacks against
his f5-e4 pawn chain. First of all 16.f3 can be met by 16...e3. Secondly,
after 16.g4, we notice that the bishop has made way for the f-pawn with 16...
f6. It's quite a omputer-like defence and I was - perhaps slightly sadly! -
very pleased that it had occurred to me immediately (a sign of the times that
a GM is proud when he thinks of a computer move!)} 16. g4 (16. Nd5 Qxd6 17. g4
f6 {Black's key defensive idea Black's key defensive idea is really strong here
} 18. Nh3 fxg4) (16. Ne2 Nc6 17. Nxd4 cxd4 (17... Nxd4 18. b4 {winning is
Komodo's line! winning is Komodo's astonishing line!}) 18. c5 {with mutual
chances is Komodo's final line with mutual chances is Komodo's final line, but
I do like Black's central pawns!}) (16. Qf4 Nc6 {is Komodo's improvement} (
16... f6 {was more or less where I stopped my analysis: after 17.Nh3, White's
pieces don't look very clever. However Komodo found something astonishing!} 17.
cxb5 {Komodo, which had not occurred to me} fxg5 18. Bc4+ Kh8 19. hxg5 Ra7 20.
Rxd4 {is an amazing win. I stopped at ...Ra7 thinking Black could defend
himself!} cxd4 21. Qe5+ Rg7 22. Rxh7+ Kxh7 23. Qh2+ Kg6 24. Qh6# {Gorgeous!
Gorgeous! Still don't quite believe it}) 17. Ncxe4 f6 {Komodo likes Black!} 18.
cxb5 Ne5 {White has too many things hanging!}) 16... f6 17. cxb5 {Again, my
feeling for danger seems to have been a little underdeveloped. I didn't see
much problem with Black's position after this piece sacrifice but all the
engines seem rather concerned!} (17. Nh3 fxg4 18. Nf4 Nc6 (18... Qxd6 19. Nxe4
{gives White some time and play}) (18... f5 {was my thought, but Komodo sees
some danger} 19. cxb5 Qxd6 20. Bc4+ Kh8 21. h5 {with the threat of Ng6+}) 19.
Nxe4 Ne5 {is Komodo's unobvious favourite line, when ...Nf3 really cements
Black's pieces in White's camp}) 17... axb5 (17... fxg5 18. Bc4+ Kh8 19. hxg5
Ra7 20. g6 {followed by Qh6 is winning according to Komodo}) 18. Nxb5 Nc6 19.
Bc4+ Kg7 20. Bd5 Qb6 {is Komodo's main line which is still very murky.}) (14...
Be6 15. g4 {Not Komodo's choice, but he likes it a lot once it's played. The
bishop on e6 is in the way of gxf5 with tempo and Ng5 Not Komodo's choice, but
he likes it a lot once it's played on the board. The bishop on e6 is in the
way of gxf5 with tempo and Ng5}) (14... Nd7 15. g4 {was what I wanted but
Komodo not too impressed was (of course) what I wanted but Komodo finds a
lovely little counter} Bb7 16. Nd5 Bxd5 17. Qxd5 Nb6 {The key point. I hadn't
appreciated how strong Black's position has become} 18. Qxc5 Rc8 19. Qe3 e4 {
gets Black's position going very impressively. Houdini suggested 15.Rg1
meeting 15...Bb7 with 16.Be2 with g4 to follow which dfidn't seem bad at all!})
15. d7 Bb7 16. Qd6 e4 17. Nd5 Bg7 18. Ng5 Nd4 19. Ne7+ Kh8 20. Rh3 f4 21. Kb1
b4 22. Be2 f3 23. gxf3 Nxe2 24. Qxc5 Nf4 25. Qf5 Ng6 26. h5 Qxe7 27. hxg6 1-0
[Event "London Classic Dinner Simul"]
[Site "?"]
[Date "2017.12.08"]
[Round "?"]
[White "Classic GMs"]
[Black "Team RAC"]
[Result "0-1"]
[ECO "A02"]
[Annotator "Sadler,Matthew"]
[PlyCount "94"]
[EventDate "2017.11.19"]
1. f4 {Played by Levon Aronian with a flourish. The table pointed out to him
that Natasha (who was also sitting at the table) had written a Trends book on
the Bird's Opening back in 1998 and was thus likely to be an expert on the
opening, but Levon bravely refused to retract his move!} e5 2. fxe5 d6 {
The From Gambit, which is the most dangerous response against 1.f4.} 3. Nf3 {
Unusual - I'd certainly never seen it before - though my database produces 825
games in this line! In principle, it's a sensible way of avoiding the danger
of accepting the gambit with 3.ed Bd6. After 3...de 4.e4, White reaches a
reasonably safe King's Gambit position so we decided to spice things up a
little further!} g5 4. e6 {Adams} (4. exd6 g4 5. dxc7 Qxc7 6. Nd4 Bd6 {
threatening ...Bg3+ looked attractive for a practical game even if the engines
much prefer White! Mickey Adams preferred a calmer move that left Black's
pieces in a surprisingly awkward position.}) 4... Bxe6 (4... g4 5. exf7+ Kxf7
6. Nd4 {looked tempting for a little while, but actually Black's king is just
as vulnerable as White's after a quick e3 and Bc4+!}) 5. e4 Bg7 (5... d5 {
was the only previous game in this line and not an advertisement for Black's
approach!} 6. exd5 Bxd5 7. Nc3 Be6 8. d4 h6 9. d5 Bf5 10. Nd4 Bg6 11. Bb5+ Nd7
12. O-O Ne7 13. Re1 a6 14. d6 cxd6 15. Nd5 axb5 16. Nxb5 Qb8 17. Qd4 Rh7 18.
Qe3 Ne5 19. Nf6+ Kd8 20. Qb6+ {1-0 (20) Muzychuk,A (2293)-Daulyte,D Budva 2003}
) 6. d4 h6 (6... g4 7. Ng5 {looked very pleasant for White. 6...h6 covers the
g5 square and thus (hopefully) turns ...g4 into an awkward threat for White})
7. Nc3 {Played very quickly by Karjakin. We couldn't resist trying to punish
this move by driving the knight back.} g4 8. Ng1 Nf6 9. Nge2 {Black's
development has hit a wall: his problems are two-fold: 1. He cannot develop
his queen's knight to a normal square like c6 or d7 as d5 would win a piece
for White. Black's light-squared bishop - drawn to e6 by Mickey's clever 4th
move - is turning out to be a real problem for Black's development 2. Black's
weakened kingside is not safe enough for Black's king. Black would really want
to castle queenside... but first he needs to develop his queenside. In the
coming moves, Black manages to develop his queenside pieces (somewhat
awkwardly) and achieves queenside castling.} c6 10. Nf4 Qa5 11. Bd3 Nbd7 12.
O-O O-O-O {I was a little worried that d4-d5 might win a piece in a clever way,
but I couldn't see how and neither can the engine! However, with his strong
centre and the prospect of storming the Black queenside with his queenside
pawns, White is clearly better.} 13. Be3 Nb6 14. a3 Nc4 15. Bxc4 (15. Bc1 {
threatening Nxe6 and Bxc4 was worrying me like crazy, and it seems to be as
bad as I feared!} b5 {which I thought was necessary} 16. a4 {will not go well
for long! However, luck was on our side as another of the top players came
around, glanced at the board quickly and took on c4. I think it was Karjakin
who complained later that he had intended 15.Bc1 when playing 14.a3!}) 15...
Bxc4 {Now Black is fighting again. e4 is weak and the knight on f4 - though
well-placed - is no longer exerting direct pressure on Black's position. The
light-squared bishop on c4 also helps to slow down any pawn storm from White
on the queenside.} 16. Re1 {Anand} Rhe8 17. Qd2 Qc7 18. b3 Ba6 19. Bf2 {
Carlsen. The position is still delicate for Black due to the number of
weaknesses on his kingside. We decided to redeploy the knight to g5 which
attacks e4, allows a future ...f5 break against the e4 pawn and also shields
Black's weaknesses along the c1-h6 and h4-d8 diagonal. We were relying on a
bit of luck for the implementation...} Nh7 20. b4 {Adams} Bc4 21. Nh5 Bh8 22.
a4 {Mickey was uncharacteristically fuelled by the desire to advance his
queenside pawns - I was praying he wouldn't grab the h6 pawn!} (22. Qxh6 {
was stronger}) 22... Ng5 23. Qf4 {Caruana. Here you start to see how different
players can have different ideas about the position. I'm sure that Mickey
would just have pushed 23.b5. However Fabiano was our victim this time, and
went a different way!} Rg8 24. b5 (24. Qxg4+ Be6 25. Qe2 Nh3+ {followed by ...
Bg4 was the tactical idea. 23...Rg8 also introduces an ingenious way to
regroup Black's pieces and loosen White's bind on his kingside.}) 24... Ne6 25.
Qd2 Rg5 {Chasing the knight back from g5 and preparing a future ...h5-h4} 26.
Ng3 c5 {Once this move appeared on the board, I was sure that Black was doing
fine, and Nepo looked pretty impressed too as he came around to make his move.
However, Komodo points out an unexpected flaw in Black's position. To be fair,
a lovely French gentleman on our team had pointed out a few times that the
bishop on c4 was a little short of squares!} 27. Nce2 {Nepomniachtchi} (27. d5
Nd4 {Felt good for Black, but the computer sees differently:} 28. Nd1 {with
Ne3 to follow and the bishop on c4 is trapped!} Ne2+ 29. Nxe2 Bxa1 30. Ne3 Bxe2
31. Rxa1 {is the beautiful line with the point} g3 32. Bxg3 Bh5 33. Nc4 {
and White has powerful pressure against d6} (33. Bh4 {wins back the exchange,
but the text is even stronger})) 27... d5 {Now I thought Black must be clearly
better... but the engines still prefer White! All the same, with all the
avenues of pressure against White's position, Black's position is definitely
easier (and more fun!) to play.} 28. c3 h5 29. Be3 Rgg8 30. Rab1 {Now things
take a real turn for the worse} (30. Nxh5 dxe4) 30... h4 31. Nf5 dxe4 {
Securing a very strong square for the bishop on d3} 32. Nf4 h3 {to free f3 for
the Black knight via ...hg} (32... Be5 {was winning on the spot according to
Komodo!} 33. Nxe6 fxe6 {and White cannot protect the h2 pawn. A real shame
because I really liked the idea of 32...h3, trying to secure f3 for Black's
knight or rook by destroying White's g2 pawn. The choice might have been
influenced by all the AlphaZero games I was analysing in which White puts a
rook on the 6th supported by a pawn on the 5th rank!}) 33. Nxe6 fxe6 34. Bf4 e5
35. Bg3 Qd7 36. Ne3 Bd3 37. b6 a6 {White's position is collapsing. Black's
plan is to leave the bishop on d3 (it's worth much more than the rook on b1)
and increase the pressure on White's position with ..hg. ...Rdf8 and ...Rf3}
38. Rbc1 exd4 39. cxd4 Bxd4 40. Kh1 Rdf8 41. Qb4 Qc6 42. Qb3 Rg5 {Covering d5
against Nd5 and also removing the rook from the sneaky attack of the queen on
b3. At this point, Malcolm Pein came around with Hikaru and Fabiano and said:
"This looks awful - you should resign here" Hikaru was quite indignant: "Why
should I resign? I'm not lost here. Look at Black's king" But it was
noticeable that he mysteriously disappeared after making his move, leaving
Fabiano to defend his assessment!} 43. Rcd1 {Nakamura} hxg2+ 44. Nxg2 {Caruana}
Rf3 45. Ne3 {Aronian} Bxe3 46. Rxe3 Rxe3 47. Bf4 Re2 {and the Black side could
experience the once-in-a-lifetime pleasure of graciously accepting the
resignation of the World no.2 Levon Aronian!} 0-1
[Event "Alekhine Memorial-02"]
[Site "Moscow (Russia)"]
[Date "1971.11.30"]
[Round "6"]
[White "Tal, Mihail"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[ECO "C07"]
[Annotator "Matthew Sadler"]
[PlyCount "37"]
[EventDate "1971.11.24"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "RUS"]
[EventCategory "14"]
[SourceTitle "https://matthewsadler.me."]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{Tal recounts that he very much wanted to surprise Uhlmann in the opening, but
that he wasn't sure how. In the end his choice fell on the the lesser-known 5.
Bb5 in the French Tarrasch.} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. Bb5 {
As Karolyi points out, Uhlmann - a leading expert on the French - had faced
this line the previous year against Parma and chosen 5...Bd6. Tal notes that
"Uhlmann is one of those chess players who does not attempt to be too
sophisticated, and as a rule plays the opening quickly. The fact that he spent
more than 20 minutes over his fifth move showed that the psychological "mine"
(5.Bb5) had worked." On the other hand, the fact that Uhlmann chose such a
risky, concrete continuation (opening the centre against Tal!) and then
repeated it 9 times subsequently (including a follow-up game against Tal in
Tallinn 1977) indicates to me that Uhlmann had probably looked at this line at
home already. From a general point of view, it feels a little odd to repair
the only defect in White's position - the bishop on c1 blocked in by the
knight on d2 - at such an early point in the game. However, Uhlmann's play is
based on the tactical exploitation of White's bishop on b5. That's the thing
about advanced attacking pieces: they exert pressure on the opponent's
position but they also provide nearby targets for the opponent to exploit!}
dxe4 6. Nxe4 Bd7 {[#] Uhlmann's idea, and a very clever one. Black now
threatens ...Nxd4 winning a pawn due to the discovered attack on the bishop on
b5. Tal continues with 1-move development, ensuring Black has no respite by
attacking the Black queen.} 7. Bg5 (7. O-O {was Tal's choice 6 years later.}
Nxd4 (7... cxd4 8. Bg5 Nf6 9. Nxd4 Be7 {was Uhlmann's choice in 1992, although
this looks worse to me than 7...Nxd4.} 10. Bxf6 gxf6 11. Nxc6 bxc6 12. Bc4 Qc7
13. Qh5 Qe5 14. Qxe5 fxe5 15. Rad1 O-O-O 16. f4 ({The obvious} 16. Nd6+ Bxd6
17. Rxd6 Kc7 18. Rd3 {looks like a little edge for White at least.}) 16... exf4
17. Rxf4 f5 18. Nd6+ Bxd6 19. Rxd6 Kc7 20. Rd3 Bc8 21. Ra3 Rd1+ 22. Rf1 {
½-½ Fritsche,L -Uhlmann,W Germany 1991}) 8. Bg5 (8. Bxd7+ Qxd7 9. c3 {
is Sakaev's and Landa's suggestion with compensation with the pawn which
hasn't been tried in practice yet.}) 8... f6 9. Nxd4 cxd4 10. Bh4 {Typical Tal,
preventing Black's development tactically.} Be7 {Preparing development with ...
Nh6-f7} (10... Nh6 11. Bxd7+ Qxd7 12. Bxf6 Qc6 13. Qh5+ Kd7 14. Rad1 gxf6 15.
Rxd4+ Ke7 16. Rfd1 Nf5 17. R4d3 {is enormously strong. g4, Rc3 and Rd7+ are
all in the air.}) 11. c3 (11. Qh5+ g6 12. Qe2 {is also worth a try, again
preventing Black's development with tactics:} Nh6 13. Nxf6+ Bxf6 14. Qxe6+ Be7
(14... Kf8 15. Qxf6+ Qxf6 16. Bxf6 {wins a pawn}) 15. Bxe7 Qxe7 16. Bxd7+)
11... Bxb5 12. Qh5+ Kf8 13. Qxb5 Qd5 14. Qd3 dxc3 15. Qxd5 exd5 16. Nxc3 Rd8
17. Rfd1 d4 18. Nb5 {and Tal somehow managed to squeeze out a win from this!
Black has equalised however.} Bc5 19. Rac1 Bb6 20. Bg3 Ne7 21. Bc7 Rd5 22. Bxb6
axb6 23. Rxd4 Rxd4 24. Nxd4 Kf7 25. Kf1 Rd8 26. Rc4 Rd5 27. Rb4 g5 28. g3 Ke8
29. Nc2 Rc5 30. Ne3 b5 31. a4 bxa4 32. Rxb7 h5 33. Rb4 Ra5 34. Nc4 Ra7 35. Ke2
Kf7 36. Kd3 Kg6 37. Rb6 Rd7+ 38. Rd6 Rb7 39. Ra6 Rb3+ 40. Ke4 Rb4 41. Kd4 Nf5+
42. Kc5 Rb3 43. Rb6 h4 44. Rxb3 axb3 45. g4 Nh6 46. f3 f5 47. Ne5+ Kf6 48. Kd5
Ke7 49. h3 fxg4 50. fxg4 Ng8 51. Nc6+ Kf6 52. Ke4 Kg6 53. Ne5+ Kf6 54. Nd7+ Kg6
55. Nc5 Kf6 56. Nxb3 Ne7 57. Nc5 {1-0 (57) Tal,M (2620)-Uhlmann,W (2555)
Tallinn (Estland) 1977}) (7. Be3 Qa5+ 8. Nc3 cxd4 9. Nxd4 Bb4 10. O-O Bxc3 11.
bxc3 {Reaches the same position as in the game, but with the bishop safer /
already on e3} Nge7 (11... Qxc3 12. Nxc6 bxc6 13. Bd4 {is the trick in this
case!}) 12. Rb1 (12. Nxc6 Bxc6 13. Bxc6+ Nxc6 14. c4 O-O 15. Qb1 Qc7 16. c5
Rfd8 17. Qb5 Rd7 18. Rad1 Rad8 19. Rd6 a6 20. Qb2 Ne7 21. Bg5 Rxd6 22. cxd6
Rxd6 23. Bf4 Qb6 24. Qe5 Rd7 25. Be3 Qc7 26. Qb2 Nf5 27. Bb6 Qc6 28. g3 h5 29.
h4 Rd2 30. Qb4 Nxg3 {0-1 (30) Kuijf,M (2445)-Uhlmann,W (2505) Amsterdam 1990})
12... O-O 13. Bd3 Nxd4 14. cxd4 Bc6 15. c4 Rad8 16. Qg4 f5 17. Qe2 f4 18. Bd2
Qg5 19. Qxe6+ Kh8 20. Qh3 h6 21. Bc3 Bd7 22. Qf3 Bg4 23. Qe4 Bf5 24. Qe2 Rde8
25. Qd2 Ng6 26. Rb5 Nh4 27. f3 a6 28. Rd5 Re3 29. Bxf5 Rxf5 30. Rxf5 Qxf5 31.
d5 Qg6 32. d6 Rd3 33. Qe2 Rxc3 34. d7 Qb6+ 35. c5 Qxc5+ 36. Kh1 {1-0 (36)
Stein,L-Uhlmann,W Moscow (Russia) 1971}) (7. dxc5 Qa5+ 8. Nc3 Bxc5 9. O-O Nf6
10. Bg5 Be7 11. Qe2 O-O 12. Rfd1 Rfd8 13. a3 a6 14. Bc4 Be8 15. h3 Rxd1+ 16.
Rxd1 Rd8 17. Rxd8 Qxd8 18. Bf4 h6 19. Qd3 Qxd3 20. Bxd3 Nd7 21. Bc7 Nc5 22. Be2
Bf6 23. b4 Bxc3 24. bxc5 Bb2 25. a4 Nb4 26. a5 Nxc2 27. Ne5 Nd4 28. Bd3 Nb3 29.
Nc4 Bd4 30. Kf1 Bb5 31. Ke1 Nxc5 32. Be2 Ne4 33. f3 Nc3 34. Bd3 Nd5 35. Bd8
Bc3+ 36. Kf2 Nb4 37. Be2 Nc6 38. Bb6 Bd4+ 39. Ne3 Bxe3+ 40. Kxe3 Bxe2 41. Kxe2
Kf8 42. Ke3 Ke7 43. Bc5+ Kf6 44. Bd4+ Nxd4 45. Kxd4 Ke7 46. Kc5 Kd7 47. h4 g5
48. h5 Kc7 49. g3 f5 50. f4 g4 {0-1 (50) Davydov,M (2190)-Uhlmann,W (2460)
Grieskirchen 1998}) 7... Qa5+ {Again demonstrating the drawback to advanced
attacking pieces. This disruptive check costs White time, forcing the knight
to retreat to c3 to protect the bishop on b5.} 8. Nc3 {[#] A crucial moment in
the game. This position is a nice conflict between easy, 1-move development
(Tal's development) and development based around specific tactical factors in
the position (Uhlmann's). In general, we can see nothing wrong with White's
position: the knights are out, the bishops are out, his king is ready to
castle, the centre is reasonably open and White has the d4-d5 break at his
disposal if Black doesn't react quickly. Black on the other hand has moved his
queen early in the game, only developed his queenside pieces and his king is
stuck in the centre. Listening to this litany of woes, you may feel that it's
time to bring out the wagging finger, shake your head sadly and say
"Grandmaster how could you?" There is another side to the story however.
Black's queen is a very powerful piece: it pins the knight to c3, attacks the
bishop on b5 and don't forget that bishop on g5 on the same rank (the queen on
a5 won't!) That bishop on g5 is protected by the knight on f3, but that knight
can easily be drawn away due to Black's pressure on d4. Add the opposition of
the bishop on d7 and the bishop on b5 into the mix and you start to see some
areas that might be of immediate concern to White. In fact, these tactical
factors give Black a number of reasonable possibilities. One of the keys to
this is that although Black's kingside is not yet developed, there are no
obstacles to the easy development of these pieces: both the bishop on f8 and
knight on g8 have multiple good squares available. If White doesn't find a way
to get at Black quickly, it won't be long before Black has caught up in
development.} cxd4 {Risky, especially against Tal, but not a bad move. Karolyi
suggests 8...h6 and I was particularly keen on 8...a6. Sakaev and Landa give
an interesting variation which was the starting point of my investigations (as
I didn't quite understand it!)} (8... a6 9. Bxc6 Bxc6 10. d5 (10. O-O {is
really bad!} cxd4 11. Qxd4 Bxf3 {wins a piece! The triumph of specific piece
placement over general development. That useful-looking bishop on g5 turns out
to be loose!} 12. Rad1 Bxd1 13. Rxd1 Qc7) (10. Ne5 Bxg2 11. Rg1 Bd5 {is my
engine's line with advantage to Black. It's worth a try in my opinion, but I
think that Black should cope.}) 10... exd5 {is the only line given by Sakaev,
which seems illogical to me. 10...Bxd5 feels like a much safer option and was
indeed one of Uhlmann's choices.} (10... Bxd5 11. O-O Bc6 {Feels like the best
idea to me: 11...Bxf3 gives White free and easy development, and at the very
least, it doesn't challenge White to find any difficult moves.} (11... Bxf3 12.
Qxf3 Qc7 13. Rad1 Be7 14. Bf4 Qc6 15. Ne4 (15. Qxc6+ bxc6 16. Na4 Nf6 17. c4 {
is another idea}) 15... Nf6 16. Nd6+ Bxd6 17. Qxc6+ bxc6 18. Bxd6 (18. Rxd6 Ke7
{I didn't appreciate this idea} 19. Rxc6 Nd5 20. Bg3 Rhc8 {looks pretty equal})
18... Nd7 19. Rd3 O-O-O 20. Ra3 {looks pleasant for White}) 12. Ne5 Qc7 {
The best idea for a number of reasons, one of which is simply that Black
maintains real winning chances only as long as his c-pawns are not doubled.}
13. Re1 Nf6 (13... Be7 14. Bf4 {followed by Qg4 / Qh5 is surprisingly
unpleasant}) 14. Nxc6 Qxc6 15. Bxf6 gxf6 16. Qh5 {and now} Rg8 (16... Be7 17.
Re3 h6 18. Rae1 Kf8 19. Nd5 Rd8 20. Nf4 e5 21. Ne2 Rd2 22. Ng3 {turned out a
little fraught for Black, but Uhlmann won through in the end} Rxc2 23. Nf5 Qd7
24. Rg3 Qd2 25. Rf1 Qe2 26. Qxe2 Rxe2 27. Rd3 Ke8 28. Rfd1 Re4 29. f3 Rd4 30.
Nxd4 cxd4 31. a4 a5 32. g4 Kd7 33. Rc1 b6 34. Rc2 Bc5 35. Kg2 Ke6 36. Rd1 f5
37. h3 h5 38. Re2 Rg8 39. Kf1 hxg4 40. hxg4 fxg4 41. f4 f6 42. fxe5 fxe5 43.
Rde1 Rg5 44. Kg2 d3 {0-1 (44) Nicevski,R (2395)-Uhlmann,W (2555) Skopje 1976})
17. Ne4 Rg6 {was my analysis before I realised that Uhlmann had played this
already! This also looks good for Black}) 11. O-O f6 {Sakaev's line} (11... d4
{was another alternative I couldn't refute easily.} 12. Re1+ (12. Ne5 Qc7 (
12... dxc3 13. Re1 Be7 (13... Ne7 14. Nc4) 14. Nxc6 bxc6 15. Qd6 Qd8 16. Bxe7
Nxe7 17. Rxe7+ Qxe7 18. Qxc6+ {wins}) 13. Qh5 {was the idea, to attack f7
before Black can play ...Be7 and ...0-0-0} (13. Re1 {--> 12.Re1}) 13... g6 (
13... Bd6) 14. Qh3 dxc3 15. Rae1 {was the idea, but it doesn't look too
terminal for Black} Be7 16. Qxc3 f6 {Couldn't find a way through, and nor can
my engine.}) 12... Be7 13. Ne4 {Strongest} (13. Ne5 Qc7 {Looked fine for Black
to me (surprisingly)} 14. Qg4 (14. Qh5 g6) (14. Ne4 Qxe5 15. Nf6+ gxf6 16. Rxe5
fxe5) 14... g6 {is not clear, but I don't think Black is doing too badly. 13.
Ne4 looks stronger.}) 13... O-O-O {The move Black wants to play if he can.} 14.
Ne5 (14. Bxe7 Nxe7 15. Neg5 {Very strong I thought but my engine finds extra
resources} Ng6 16. Nxf7 Rhf8 17. Nxd8 (17. N3e5 Nxe5 18. Nxe5 {may be an edge
for White}) 17... Bxf3 18. gxf3 Qxd8 {gives Black some compensation for the
exchange}) 14... Bxe4 15. Bxe7 Nxe7 16. Nxf7 Bd5 17. Rxe7 Bxf7 18. Rxf7 {
is definitely an edge for White}) 12. Nxd5 fxg5 13. Re1+ Ne7 {Sakaev's line} (
13... Be7 {was not obvious to me either. I came quite a way, but I needed my
engine to help me through the final defences!} 14. Nxe7 {Necessary to stop
Black from castling his king away to safety} (14. Ne5 Qxe1+ 15. Qxe1 Bxd5 16.
Rd1 Nf6 {looks fine for Black}) (14. Nxg5 O-O-O 15. Qg4+ (15. Rxe7 Bxd5) 15...
Kb8 (15... Bd7 16. Qf4 (16. Ne6 Bf6 {I couldn't find anything for White here.
Nor could my engine} 17. b4 cxb4 18. Qc4+ Bc6) 16... Bxg5 17. Qxg5 Nf6 18. b4
Qa3 19. Nb6+ Kb8 20. Qxc5 Bc6 21. Qe5+ Ka7 22. Qc5 Kb8 {is my engine's draw by
repetition.}) 16. Nxe7 Nxe7 17. Rxe7 Rhe8 {My engine thinks Black will have
sufficient play which seems fair enough}) 14... Nxe7 15. Nxg5 (15. Qd6 Qd8 (
15... O-O 16. Rxe7 {looked like a slight edge to me}) 16. Qxc5 Bxf3 17. gxf3 {
still felt dangerous for Black, but my engine is confident!}) 15... Rd8 {
Abandoning queenside castling, but intending to bring the Black queen into the
game, possibly via d2. The rook is also available to defend the knight on e7
from d7.} (15... Qd8 16. Qg4 Qd6 17. Rad1 Qf6 18. Re6 {is very strong}) 16.
Qh5+ (16. Qe2 O-O 17. Qxe7 (17. Qe6+ Kh8 18. Nf7+ Rxf7 19. Qxf7 Ng6 {is good
for Black}) 17... Rde8 {wins. A nasty trap!}) (16. Qg4 {with the threat of
Rxe7+ and Qe6-f7+ mate} Rd7 {is not easy to break. I tried} (16... Bd5 17. c4 {
forces Black to put the bishop to g8 before the rook on h8 has been activated.}
Bg8 18. Ne4) (16... Rd4 17. Qc8+ Qd8 18. Rxe7+ Kxe7 19. Qe6+ {is a typical
tactic}) (16... Rd6 17. Qf4 {is the engine solution} Qc7 18. Rad1 Rxd1 19. Qf7+
Kd8 20. Rxd1+ Kc8 21. Ne6) 17. Re3 (17. Re2 O-O) 17... h5 {My engine's top
choice again, given as advantage for Black} (17... O-O 18. Qe6+ Kh8 19. Rh3 {
The reason for Re3 instead of Rh3.}) (17... Rf8 18. Rae1 Bd5 {I found this
tough to break. In the end my line is my engine's top line.} 19. Nxh7 Rf7 20.
c4 Qd2 21. f3 (21. R3e2 Qd3 22. cxd5 Qxh7 23. d6 Rxd6 24. Qc8+ Rd8 25. Qxc5 g6
{looked fine for Black which my engine confirms.}) 21... Qd4 22. cxd5 Qxg4 23.
fxg4 {is much better for White.}) (17... Qd2 18. Rae1 O-O 19. R3e2 Qd6 20. Re6
Qd2 {is my engine's draw by repetition.}) 18. Qe2 c4 19. Re5 Qb6 20. Re1 O-O {
My engines felt Black would escape. This doesn't matter though as White has a
subtle and strong idea:}) 16... g6 17. Qe2 {This takes away the option of ...
0-0 due to the mate on h7.} (17. Qh6 Qd2 18. Qg7 Qxg5 19. Qxh8+ Kd7 20. Rad1+
Bd5 {wins for Black}) (17. Qh4 Kd7) 17... Rd7 (17... O-O 18. Qxe7 Rde8 19.
Qxh7# {is the difference}) 18. Rad1 Qd8 (18... Qc7 19. Ne6) 19. Qe5 Rg8 20.
Rxd7 Kxd7 (20... Qxd7 21. Nxh7) 21. Ne6 {is extermely painful for Black:} Qa5
22. b4 (22. Nxc5+ Kc8 23. Qe6+ Kb8 24. Qxe7 {is the easy human way to advantage
}) 22... Qb6 23. Nf8+ Kc8 24. Qe6+ Kb8 25. Nd7+ {is the fantastic engine
solution.}) 14. Nxe7 Bxe7 15. Nxg5 c4 {is the line Sakaev gives, and indeed
the engines are all in agreement: Black holds!} 16. Qh5+ (16. Qg4 {Mentioned
by Sakaev as worthy of investigation.}) 16... g6 17. Qg4 Qf5 18. Qd4 Qxg5 19.
Qxh8+ Kf7 20. Qxh7+ Kf8 21. Qh8+ {with a draw by perpetual}) 9. Nxd4 Bb4 {
Uhlmann isn't holding back in this game, consistently choosing the riskiest
lines.} (9... Be7 {Tal's thought during the game, was tried twice by Uhlmann
in subsequent years and looks very safe indeed. It's nice that Black can
develop by gaining a tempo against a developed White piece!} 10. Qd2 (10. Bxe7
Ngxe7 11. O-O O-O 12. Nb3 Qc7 13. Re1 Rfd8 14. Qh5 Nb4 15. Rac1 Bxb5 16. Qxb5
Nbd5 {was even in: Rooze -Uhlmann,W Bad Zwischenahn 2008}) 10... Nf6 11. O-O-O
{"with at any rate a sharp struggle" - Tal} Rd8 12. Nb3 Qc7 13. Bxf6 Bxf6 14.
Ne4 Be7 15. Nd6+ Bxd6 16. Qxd6 Qxd6 17. Rxd6 Ke7 {was dead equal in: Horvath,T
-Uhlmann,W Austria 2005}) 10. O-O Bxc3 11. bxc3 Qxc3 {This is the decisive
mistake, which loses to an astonishing tactical resource. I spent some time
looking at} (11... h6 12. Qh5 {interested me a lot} (12. Bh4 Qxc3 {must be an
improved version of the game. You'll see why it's important to knock the
bishop of the c1-h6 diagonal!} 13. Nf5 exf5 14. Re1+ Be6 15. Rxe6+ {could be
the only negative point for Black in the inclusion of ...h6 and Bh4 but...}
fxe6 16. Qh5+ Kf8 {wins}) 12... a6 {Again harrying White's advanced attacking
pieces and trying to male use of the queen's attack on the g5 bishop along the
5th rank.} (12... Nxd4 13. Bxd7+ Kxd7 (13... Kf8 14. Be7+) 14. Qxf7+ {The key
tactical point of 12.Qh5.} Kc6 15. cxd4 Qxg5 (15... hxg5 16. Qxe6+ Kc7 17. Qf7+
Kc6 18. Rfe1 Rh6 {which I assessed as winning for White. My engine gives:} 19.
Re5 {which certainly does the trick.}) 16. Rae1 {My line with which my engine
agrees}) (12... Qxc3 {looks like the other crucial try.}) 13. Bxc6 (13. Nf5
exf5 14. Rfe1+ Kf8 {unfortunately looks completely safe for Black: too many
bishops are hanging.}) 13... bxc6 (13... Bxc6 14. Nxe6 {looked like way too
much!} g6 15. Ng7+ Kf8 16. Be7+) 14. f4 {Is murky and worth a punt! However,
my feeling is that Black should be fine.} Nf6 (14... Ne7 15. f5 Nxf5 16. Rae1
O-O 17. Bxh6 gxh6 18. Nxf5 exf5 19. Qxh6 Qc5+ 20. Kh1 Rae8 21. Qg5+ {was my
engine's draw by repetition}) 15. Qh4 Ne4 (15... c5 16. Bxf6 gxf6 17. Qxf6 Rg8
18. Nf5 exf5 19. Rae1+ Kf8 20. Qxh6+ Rg7 21. Rf3) 16. Be7 Qxc3 (16... g5 17.
fxg5) 17. Rad1 {was the line I was looking at. It looks pretty fraught: I'm
not at all sure what's going on here!}) (11... a6 {was Tal's suggestion, but
seems pretty good for White.} 12. Bxc6 Bxc6 13. Nxc6 (13. Qg4 {also looks
awkward}) 13... Qxg5 14. Qd6 Ne7 15. Rfd1 {Tal} Nxc6 16. Qd7+ Kf8 17. Qxb7 {
was Tal's line}) 12. Nf5 {[#] Back at the board, Tal has just uncorked this!}
exf5 13. Re1+ Be6 14. Qd6 a6 {[#] You might think that Black could survive
this as there is no easy way to break through Black's position and all of
Black's weak dark squares seem to be covered by undeveloped Black pieces! The
knight on g8 covers e7 and the rook on a8 covers d8. However, there is one
undeveloped piece that is contributing nothing, and Tal exploits precisely
that one!} 15. Bd2 {[#]} Qxc2 16. Bb4 {Wow!! What a switchback! f8 is the one
dark square close to the Black king that cannot be defended and Tal finds his
way there!} axb5 (16... Nf6 17. Qe7# {[#]}) 17. Qf8+ Kd7 18. Red1+ Kc7 19. Qxa8
{And Uhlmann resigned. He cannot develop his kingside and} (19. Qxa8 Nxb4 20.
Qd8+ Kc6 21. Qd6# {is mate}) 1-0
[Event "KH Blitz memorial"]
[Site "?"]
[Date "2018.02.17"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Jones, Gawain C B"]
[Result "1-0"]
[ECO "A37"]
[PlyCount "81"]
[SourceVersionDate "2018.02.18"]
1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 Nc6 5. Bg2 d6 6. O-O Bf5 7. d3 Qd7 8. Nd5
Nf6 9. Nxf6+ Bxf6 10. Bh6 {It's not quite a Benko, but it is a b-pawn all the
same. I hoped that being a pawn down would bring me better luck against Gawain
this time than being a pawn up!} Bxb2 11. Rb1 Bf6 12. Nd2 Bh3 {The engine's
top move, but I had prepared something against it when I played 12.Nd2 so I
was able to whip off Black's b-pawn instantly! It felt talented, though my
machine is giving me the thumbs down right away. So did Luke when analysing
the game afterwards!} 13. Rxb7 Qxb7 14. Bxh3 {My bishops stop the king from
castling and Qa4 & Rb1, Ne4 are in the air. I was very bullish about my
chances during the game, though looking at it now I'm less convinced. Gawain
went for a natural continuation, but that led into more or less the main
varaiation I was looking at.} e6 15. Ne4 Be7 16. Qa1 Kd7 17. Rb1 Qa6 18. Qg7 {
Gawain had missed this idea.} Ne5 (18... Raf8 {was more tenacious. The text
loses a crucial pawn}) 19. Nxc5+ dxc5 20. Qxe5 Qd6 21. Rb7+ Kc8 22. Qxd6 (22.
Qxh8+ Kxb7 23. Bg2+ {would have won on the spot!}) 22... Bxd6 23. Rxf7 Re8 24.
Rxh7 Be5 25. Be3 Bd6 26. Rg7 Rb8 27. Rxa7 Rb2 28. Bg4 Re7 29. Ra8+ Kc7 30. Rg8
Rxa2 31. Rxg6 e5 32. Bg5 Rf7 33. h4 e4 34. dxe4 Be5 35. h5 Rc2 36. h6 Rf8 37.
Re6 Bd4 38. Bf4+ Kb7 39. e5 Rxc4 40. h7 Rh8 41. Bf5 {and White won in a few
more moves} 1-0
[Event "KH Blitz memorial"]
[Site "?"]
[Date "2018.02.17"]
[Round "?"]
[White "Speelman, Jonathan S"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "E46"]
[SetUp "1"]
[FEN "4r1k1/1p1qb1pp/1n3p2/1P1pPb2/2pP1P2/2N1B1P1/3Q1KBP/R7 w - - 0 27"]
[PlyCount "48"]
[SourceVersionDate "2018.02.18"]
27. Ra2 {The position has stabilised, but now Black starts to chip away at
White's kingside. A few incautious moves from Jon and his position becomes
critical.} h5 28. Bf3 Bg4 29. Qe2 fxe5 30. Bxg4 (30. fxe5 Rf8 31. Bf4 g5) 30...
hxg4 31. fxe5 Rf8+ 32. Kg2 Qf5 {A very difficult position in a blitz game:
White's light squares are very weak.} 33. Ra1 Bb4 34. Nd1 Qe4+ 35. Kg1 Rf3 36.
Ra2 c3 37. Bf2 Nc4 38. Qxe4 dxe4 39. Re2 Rd3 40. Ne3 {I got a little confused
here and chose a second-best way of winning (40,,,Nxe3 41.Bxe3 Rxe3 wins!) but
it was enough.} Nxe3 41. Bxe3 c2 42. Kf2 Bd2 43. Rxd2 c1=Q 44. Rxd3 Qh1 45. Rc3
Qxh2+ 46. Kf1 Qxg3 47. e6 Qd6 48. d5 Qxd5 49. Rc8+ Kh7 50. e7 Qf5+ 0-1
[Event "Christmas Congress 1934/35-15 Premier"]
[Site "Hastings White Rock Pavilion"]
[Date "1934.12.28"]
[Round "2"]
[White "Capablanca, Jose Raul"]
[Black "Thomas, George Alan"]
[Result "0-1"]
[ECO "D61"]
[Annotator "Sadler,Matthew"]
[PlyCount "106"]
[EventDate "1934.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. d4 Nf6 (1... d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 Nbd7 6. e3 O-O 7. Rc1
c6 8. Qc2 a6 9. a4 Re8 10. Bd3 dxc4 11. Bxc4 Nd5 12. Bf4 Nxf4 13. exf4 c5 14.
dxc5 Qc7 15. O-O Qxf4 16. Ne4 Nxc5 17. Nxc5 Bxc5 18. Bd3 b6 19. Bxh7+ Kh8 20.
Be4 Ra7 21. b4 Bf8 22. Qc6 Rd7 23. g3 Qb8 24. Ng5 Red8 25. Bg6 Qe5 26. Nxf7+
Rxf7 27. Bxf7 Qf5 28. Rfd1 Rxd1+ 29. Rxd1 Qxf7 30. Qxc8 Kh7 31. Qxa6 Qf3 32.
Qd3+ {1-0 (32) Alekhine,A-Rubinstein,A Karlsbad 1923}) 2. c4 e6 3. Nc3 d5 4.
Bg5 Nbd7 5. e3 c6 6. a3 Be7 7. Qc2 O-O 8. Nf3 Re8 9. Rd1 Nf8 {A
strange-looking move, though fairly logical in its own way. White and Black
are locked in the "battle for a tempo" so typical of this line. White wants
Black to capture on c4 before he moves his light-squared bishop, and Black
wants to wait with ...dxc4 until White has moved his light-squared bishop! In
the meantime, both sides try and find something useful to do! White has played
a3, Qc2 and Rd1 whereas Black has played ...Re8 and ...Nf8. 9...Nf8 is a
somewhat passive move: on d7, the Black knight supported both the ...c5 and ...
e5 freeing breaks whereas after 9...Nf8, neither of these breaks is possible,
so it sin't particularly clear whether this extra move has helped Black. For
that reason, Capablanca decides that he can now afford to lose the "battle for
the tempo" and develop his light-squared bishop.} 10. Bd3 dxc4 11. Bxc4 Nd5 12.
Bxe7 (12. Bf4 {was interesting in this position, using the plan that Alekhine
played against Rubinstein in 1923. It was also played in a more recent game
between Gelfand and Serper in Uzhgorod 1987.} Nxf4 13. exf4 Qc7 14. g3 c5 15.
O-O a6 16. Ba2 b5 17. d5 c4 18. b3 Bb7 19. bxc4 bxc4 20. Ne5 Bxa3 21. dxe6 Rxe6
22. Nd5 {gave White some initiative due to Black's weak light squares (c4 will
fall and f7 is very sensitive!) White won in 72 moves.}) 12... Qxe7 13. O-O b6
14. Ne2 {A clever move, avoiding the exchange of knights in response to the
gain of central space with e3-e4. Black thus does not get an opportunity to
relieve his cramped position with exchanges.} Bb7 15. e4 Nf6 16. Ng3 {
Capablanca takes the opportunity to find an alternative post for the knight
rather than return it to c3. The knight on g3 has 2 purposes: 1. By aiming
at the f5 square, it dissuades Black from organising the ...e6-e5 break. 2.
It prepares to meet the ...c5 break with d4-d5. After ...exd5, exd5 White will
again be able to use the f5 outpost for his knight.} Red8 17. Rfe1 Rac8 18. Qb3
{Something you really wouldn't expect from Capablanca: a 2-move manoeuvre that
destroys the coordination in his position! White was in control of the
position after Black's 17th move. Both of Black's active freeing breaks are
impossible: 1. Black has no support for ...e5 2. ...c5 is met tactically
for now by d5 when ...ed, ed followed by Nf5 would be very dangerous for Black.
Black's most likely freeing move is the ...c5 break. Black's most obvious plan
to achieve this is to move the queen from the e-file and then play ...c5. If
White still wants to meet ...c5 with d5 (which seems logical) then he will
need to increase his cover of the d5 square. From that point of view,
Capablanca's 18th move is extremely logical, moving the queen to the a2-g8
diagonal and thus supporting the advance of the d-pawn after ...c5. d5.
However, the move is a little rushed: Black was not yet threatening ...c5, so
the obvious 18.b4, clamping down on ...c5 was just asking to be played. This
move has several points: 1. Black's freeing break ...c5 will now come at the
cost of a pawn weakness - an isolated pawn on c5 - after bc ...bc, d5. 2.
White's possibility of e5 followed by Ne4 now not only secures the d6 outpost
for the White knight, but also combines the knight on e4 with pawns on b4 and
d4 to hold back the ...c5 break by force. After 18.b4, 18...Qc7 can be met
by 19.Qb3 or 19.Qa2 when 19...c5 20.bc bc 21.d5 looks very strong for White.
Capablanca's move has a similar purpose, but severely underestimates Black's
resources} Qc7 {Preparing ...c5} 19. Qa2 {This is a really poor move. I'm not
sure why Capablanca played it. My guess is that Capablanca was irritated with
himself for not having played 18.b4 on the last move (which is a natural
Capablanca move if ever there was one!) and decided to repair that omission as
soon as possible by dropping the queen back to a2 to allow the b-pawn to move.
Just for a moment however, the White position is lacking harmony and strength.
That comes from the fact that the White queen's room for manoeuvre is so
limited: she only has 3 legal moves now! If such a powerful piece is so
poorly-placed, there is a likelihood that tactics will not turn out in White's
favour. It was time to understand that White's 18th move was a slight error
and switch plan with 19.e5 Ne8 20.Ne4 or first 19.a4 a6 20.e5 Ne8 21.Ne4, in
both cases with a slight White advantage. The text is much worse than a
waiting move such as 19.h3!} c5 {Absolutely essential...and surprisingly
strong!} 20. d5 b5 {I think that Capablanca may have missed that this move was
possible - and strong - immediately without the preliminary ...exd5. It would
also have been Black's idea after the quiet waiting move 19.h3 c5 20.d5 b5 as
21.Qxb5 exd5 22.exd5 Bxd5 23.Bxd5 Nxd5 24.Nf5 Ne6 would be fairly even as the
Black weakness on c5 is compensated by White's backward pawn on b2. After the
move 19.Qa2 however, 20...b5 turns the position in Black's favour!} (20... exd5
21. exd5 b5 22. d6 {is very strong. It's also a useful point that the queen on
a2 does not get hit by ...bxc4!} (22. Nf5 {is even stronger according to my
engine, demonstrating the power of the knight on g3!} bxc4 23. Ne7+ Kh8 24. Ng5
g6 25. d6 Qd7 26. Qxc4 {and Black's position collapses})) 21. Bxb5 (21. d6 {
was the best chance, although the position has already turned Black's way who
has managed to activate his queenside majority significantly with gain of tempo
} Qb6 (21... Rxd6 22. Rxd6 Qxd6 23. Bxb5 {is fairly even. White's pawn on e4
is a little uncomfortable to defend, and Black has some nice dark-squares
around it for his minor pieces (e5 and f4) but White's position is solid, and
he can dream of first neutralising the bishop on b7 by reinforcing his centre
with f2-f3 and then later exploiting the pawn weakness on c5.}) 22. Bf1 c4 (
22... Ng6 {preparing ...Ng4, but a slightly slow move} 23. a4 {This is
surprisingly annoying for Black} bxa4 (23... a6 24. a5 Qc6 25. e5 Nd7 26. b3 {
is very pleasant for White who will point the queen to the kingside and start
to push with h4-h5}) 24. Qxa4 {should again be just about fine for White}) 23.
a4 (23. e5 Ng4 24. Rd2 Nd7 25. h3 Bxf3 26. hxg4 Bxg4) 23... a6 24. b4 (24. a5
Qc5 {is the key difference with 22...Ng6: the queen has an exellent spot on c5
when chased}) 24... Ng6 25. a5 Qa7 {is pleasant for Black, as White always has
to worry about the d6 pawn.}) (21. dxe6 Rxd1 22. exf7+ Kh8 23. Rxd1 bxc4 24.
Qxc4 Ng4 {is just better for Black.}) 21... exd5 22. e5 (22. exd5 Bxd5 23. Bc4
Bxf3 24. gxf3 {The bishop on c4 combines with the queen on a2 against f7 and
even more importantly prevents the knight on f8 from reaching d4 via e6.
Black's key task is to find a good stable square for the knight on f8.} Ng6 (
24... Rxd1 25. Rxd1 Rb8 {was one idea, to prevent the White queen from
activating itself via b3} (25... Qb7 26. Nf5 Qxf3 27. Ne7+ Kh8 28. Rd3 Qg4+ 29.
Rg3) 26. b3 Ng6 (26... N6d7 {is a very interesting idea from my engine, aiming
to put the knights on e5 and g6, or to exchange the f6 knight for the bishop
on c4 with ...Nb6xc4, leaving the knight of f8 with a path to White's weakened
kingside via e6/g6-f4/h4}) 27. Qd2 Nh4 28. Be2 {I wasn't sure how great this
would be for Black. My engine sees a slight advantage.} h6 29. b4 cxb4 30. axb4
Qb7 31. Qf4 Ng6 32. Qd4 Qxb4 33. Qxa7 {should be holdable}) (24... Qb7 {
Hoping that the ending after Qb3 is good for Black and ths dissuading the
White queen from activating itself. However, this does not appear to be true,
and my engine also points out other possibilities.} 25. Nf5 (25. Qb3 Qxb3 26.
Bxb3 Rxd1 27. Rxd1 Rb8 28. Rd3 Ng6 29. Rc3) 25... Qxf3 26. Ne7+ Kh8 27. Be2)
25. Qb3 {I wasn't sure how wonderful this position would be for Black: White's
kingside structure is damaged, but Black has an isolated pawn on c5 too and
White's light-squared bishop exerts annoying pressure on Black's position (the
f7 pawn). It must be said however, that the threat of capturing on f7 is not
so great in general: Black's king moves to h8 and the game goes on. From that
point of view, Black can definitely consider sacrificing the f7 pawn for
counterplay elsewhere on the board. White's major pieces are well-placed (just
like Black's). However, there are 2 techniques that Black can use to inject
some life into the position.} Nh4 {This places the knight on the edge of the
board, but it attacks White's kingside weaknesses and the knight is also
extremely hard to shift. In some senses, the knight reaches a stable outpost
on h4, from which it also attacks clear White weaknesses: White's damaged
structure (doubled f-pawns) which leave the White king vulnerable behind them.
Note that the knight on h4 takes away the g2 square from the White king and
thus pins it to the back rank.} 26. Rxd8+ Rxd8 27. Rd1 Rxd1+ (27... Rd4 {
Black transforms his isolated c-pawn into an isolated d-pawn. The danger in
this is that the pawn is more vulnerable on d4 than on c5 and that in this
pawn structure, White gains a queenside pawn majority which means he can
create a passed pawn there. However, the d-pawn is both a potential danger,
and a shield allowing Black to transfer his queen via d7-h3 to attack White's
kingside weaknesses. This idea sharpens the position considerably.} 28. Rxd4
cxd4 29. Ne2 g6) 28. Qxd1 g6 {A solid idea, keeping the advantages that Black
has achieved and preparing to centralise the queen once Black's king's
position has been made safer.} 29. Qb3 Kg7 30. Qc3 Qe5 {The tactical reason
why White cannot stop the Black queen from centralising!}) 22... Ne4 23. Nxe4 {
An enormous tactical mistake. I imagine that Capablanca completely
misevaluated the position after 23...dxe4 24.Ng5, otherwise I can't imagine
why he would ever make this capture. Black stands very well anyway, but there
was no reason for White to lose immediately!} dxe4 24. Nd2 (24. Rxd8 Qxd8 {
traps the knight on f3!} (24... Rxd8 {also wins, exploiting the key tactical
problem in the position: the loose bishop on b5!} 25. Ng5 h6 26. Nh3 Qa5 {
hitting e1 and b5 and winning a piece})) (24. Ng5 Rxd1 (24... c4 25. Bxc4 (25.
Rxd8 Qxd8 26. Nxf7 Qa5 (26... Kxf7 27. Bxc4+ Kg6 {is also good for Black, but
the text is clearer}) 27. Bxc4 Qxe1+ 28. Bf1 {Threatening Nh6+} h6 {is the key
way to defend!} (28... g6 29. Nd6+ Kh8 30. Qf7 {would ensure a draw by
perpetual})) 25... Rxd1 26. Bxf7+ Kh8 27. Rxd1 Qc1 (27... Qxe5 28. Be6 Qxg5 29.
Bxc8 Bxc8 30. Qf7 {wins}) 28. Qb3 Qxg5 29. Qxb7 {is better for White}) 25. Rxd1
c4 {is the way to do it: Black threatens ...Qxe5 (forking both the bishop on
b5 and knight on g5) while ...e3 is another very unpleasant idea. It's amazing
how quickly White's position has gone downhill. His pieces don't make such a
poor impression: the rook is centrally-placed on an open file, and the
influence of the queen on a2, bishop on b5 and knight on g5 converges on the
a2-g8 diagonal, so there is a sense in which White's pieces are reasonably
coordinated. However, none of White's pieces is stable, to quote a Marin
concept: all of the White pieces are undefended, instead of being anchored on
protected outposts, the White back rank is weak (which means White's king is
weak), and - most crucially from a tactical point of view - the White queen is
so poorly-placed after 25...c4 that she cannot perform her normal role of
papering over the cracks with her power! With just 4 legal moves at her
disposition (of which 2 give away material immediately) the queen temporarily
contributes nothing to the game, being able neither to coordinate a
counterattack nor to defend White's loose pieces.} 26. h4 h6 27. Nh3 e3 28.
fxe3 Qxe5 29. Bxc4 Bxg2 {pointed out by my engine, wins easily} 30. Bxf7+ Kh8
31. Kxg2 Qe4+ {...Rc2 is now available to strengthen Black's attack} 32. Kg3
Qxe3+ 33. Kg4 Qe2+) 24... Rxd2 (24... Qa5 {would be even more decisive, though
there is nothing wrong with the text either} 25. Bc4 (25. Nc4 Rxd1 26. Rxd1
Qxb5 27. Nd6 Qd7) 25... Rxd2 26. Bxf7+ Kh8 {and now the weakness of White's
back rank interferes with any of White's attempts to create rapid counterplay}
27. e6 (27. b4 Rxd1 28. Rxd1 cxb4 29. e6 Bd5) 27... Bd5 {picks up the e6 pawn
with a clear extra piece} (27... e3 {as pointed out to me by my engine, is
even stronger})) 25. Rxd2 Qa5 {And Thomas picked up 2 pieces for the rook woth
a winning position!} 26. b4 Qxb5 27. bxc5 Qxc5 28. Qb2 Ba8 29. Rdd1 Qe7 30. Qd4
h6 31. Qd6 Qxd6 (31... Qg5 {was best, keeping the queens on to create danger
on the kingside (...e3 is threatened to start with)}) 32. Rxd6 Ng6 33. e6 fxe6
34. Rxe6 Kf7 35. Ra6 Rc7 36. Rb1 Ne7 37. h4 Nc8 38. Rb5 Bb7 39. Rf5+ Kg8 40.
Re6 Ne7 41. Rf4 Bd5 42. Rd6 Rc8 43. Ra6 {Thomas' conversion has been somewhat
nervy, but this move unexpectedly gives Black a fantastic tactical opportunity
which Thomas exploits fully!} (43. Rd7 Ng6 {is the unexpected trap!} 44. Rg4
Be6) 43... Rc1+ 44. Kh2 Nc6 {The rook on a6 is now very short of squares! 45.
Ra4 a5 doesn't improve matters either!} 45. h5 Rc2 46. Rf5 Be6 47. Rf4 Rc4 {
Shutting the trap! ...Bc8 will win the rook on a6! A very unexpected motif!}
48. g4 Bc8 49. Rxc6 Rxc6 50. Rxe4 Kf7 51. Ra4 Ra6 52. Rf4+ Ke7 53. Re4+ Kf6 0-1
[Event "Match/City Cable ENG-USA +1-1=4"]
[Site "Cable"]
[Date "1930.04.12"]
[Round "1.2"]
[White "Whitaker, Norman Tweed"]
[Black "Thomas, George Alan"]
[Result "0-1"]
[ECO "C51"]
[PlyCount "46"]
[EventDate "1930.04.12"]
[EventType "team-match"]
[EventRounds "1"]
[EventCountry "ENG"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Washington"]
[BlackTeam "London"]
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 {The annotator notes that “he was
offered the gambit invented by Captain Evans, R.N. but possibly out of respect
for the deceased seaman, declined the pawn!”} 5. b5 {An unusual choice (5.a4
is the standard move in this position) though played successfully by Ganguly
against no less than Aronian in the 2014 Dubai Rapid World Championship.} Na5
6. Nxe5 (6. Be2 {has been the modern choice, though it doesn't look amazingly
impressive:} d5 7. Bb2 dxe4 8. Nxe5 Bd4 9. Bc3 Bxc3 10. Nxc3 Qd4 11. Ng4 Be6
12. Ne3 f5 13. g3 Nf6 14. f3 exf3 15. Bxf3 O-O-O 16. Ne2 Qe5 17. O-O Nc4 18.
Nxc4 Bxc4 19. Rf2 Ne4 20. Bxe4 fxe4 21. Rf1 Qxb5 22. Re1 Qc5+ 23. Kg2 Rhf8 24.
Nf4 g5 25. Nh3 Be6 26. Qe2 Qxc2 27. Rad1 e3 28. g4 Qe4+ 29. Kg3 h5 30. Ng1 Rf2
31. Qxf2 Qxg4# {0-1 (31) Jonkman,H (2383)-Van den Doel,E (2564) Leeuwarden 2001
}) 6... Nh6 7. d4 d6 8. Bxh6 dxe5 9. Bxg7 Rg8 (9... Qxd4 10. Qxd4 Bxd4 11. Bxh8
Bxa1 {was the game Mlotkowski,S-Judd,M St Louis,MO 1904, when} 12. Bd3 {
would have been balanced. Sir George Thomas' choice is much more enterprising
(and much stronger)}) 10. Bxf7+ Kxf7 11. Bxe5 Bg4 {A novelty! Preventing Qh5+
and gaining a tempo by attacking the queen. Unfortunately, just like 11...Qg5,
it allows White to get back into the game by preventing ...Nc4. Apparently Sir
George Thomas was expecting 12.Qd2 which however still allows 12...Nc4. His
opponent played something much stronger.} (11... Qg5 {Standard theory at the
time this game was played. I couldn't believe my eyes when I saw a game
recently played by 2 strong grandamsters (and ending in a win for White!)} 12.
Nd2 (12. Nc3 Nc4 13. Qf3+ Ke8 14. Nd5 {was Steinitz,W-Dubois,S London 1862 when
} Bg4 15. Nf6+ Ke7 16. Nd5+ Ke6 {looks good for Black. Kurnosov's choice keeps
the Black knight out of c4 which seems better.}) 12... Be6 (12... Bg4 13. Nf3)
13. Qf3+ Ke7 14. O-O-O Raf8 15. Qa3+ Kd8 16. f4 Qxg2 17. f5 {It's starting to
feel good for White!} Nc4 18. Qd3 Nxd2 19. fxe6 Nf3 20. Bg3 Ng5 21. d5 Qf3 22.
d6 {and now it definitely is!} Rf4 23. dxc7+ Ke7 24. Qd6+ Kf6 25. Qxf4+ Qxf4+
26. Bxf4 {1-0 (26) Kurnosov,I (2538)-Gyimesi,Z (2602) Moscow 2005}) (11... Nc4
{is unfortunately for this line, rather strong. It hits the piece keeping
White's central position together.} 12. Qh5+ {looks scary, but actually
demonstrates the drawback of having too few pieces developed to attack
effectively!} Kf8 13. Qh6+ Ke8 14. Qxh7 Be6 {and ...Bxd4 or ...Nxe5 is coming})
12. Qd3 c5 13. Nc3 cxd4 14. Nd5 Qe8 (14... Rc8 {feels more natural, trying to
get the offside knight on a5 into play. The text attacks the bishop on e5 and
the pawn on b5 but leaves the dark squares around the king looking very holey.}
) 15. Qg3 {A tempting but risky move, that allows the Black knight on a5 to
get into play for free. Either 15.Bxd4 or 15.f4 were better, in both cases
with excellent play for White.} Nc4 {Apparently at this stage, Sir George only
had a few seconds (!) for his next 5 moves!} 16. Qf4+ Ke6 17. h3 {The text is
understandable and would be strong were it not for a hidden point to 15...Nc4.
It not only activated the knight...} (17. Bxd4 Bxd4 18. Nc7+ Kd7 (18... Ke7 19.
Nd5+ {is just a draw}) 19. Nxe8 Bc3+ 20. Kf1 Nd2+ (20... Raxe8 21. Qf7+ {
is very embarrassing}) 21. Qxd2+ (21. Kg1 Kxe8 {is the engine move, with the
great point} 22. h3 Bf3 23. Rh2 Bxa1 {as} 24. Qxd2 Rd8 {and Black's pieces
turn out to be ine the perfect places!}) 21... Bxd2 22. Nf6+ Ke7 23. Nxg8+ Rxg8
{feels a bit better for Black despite White's rook and 4(!) pawns for the 2
bishops as White's queenside is so weak: a couple at least are bound to fall
before White gets his other rook into play.}) (17. Bc7 {was the best line I
could find, and my engine wants it too.} Qf8 18. Bxb6 Nxb6 (18... axb6 19. h3
Bh5 20. Qc7 {is awkward for Black due to the threat of Nf4xh5+}) 19. h3 (19.
Qc7 Rg7 {is the nice point, when the White queen is short of squares} 20. Nf4+
Kf6 21. e5+ Kf5) (19. f3 Bh5) 19... Bh5 20. Qh4 {is my engine's improvement
over my line.} (20. Qc7 Nxd5 21. exd5+ Kf6 22. O-O Qe7 {should be good for
Black}) 20... Bg6 (20... Nxd5 21. exd5+ Kd6 22. Qxh5 Re8+ 23. Kf1 d3 {Another
engine find: the idea isn't obvious at all!} 24. Qh4 (24. cxd3 Qg7 {hitting a1
and g2!}) 24... Qg7 (24... dxc2 25. Qb4+ Kd7 26. Qxf8 Rgxf8 27. Rc1 Rc8 28. h4
{is a sharp double rook ending which will probably end up balanced as Black is
likely to capture d5 and at least one more White queenside pawn.}) 25. Qb4+
Kxd5 26. Qb3+ Kc5 27. Qa3+ Kb6 28. Qd6+ Ka5 29. Qa3+ {is a draw by repetition})
21. Qg4+ Kd6 22. Qg3+ Kd7 23. Qg4+ {with a draw by repetition (as always!) as
the expected engine result.}) 17... Ba5+ {It also freed a5 for the bishop.} 18.
c3 Bxc3+ 19. Kf1 Nd2+ (19... Be2+ 20. Kxe2 Qh5+ 21. g4 Qxe5 {is the engine
line, with a safe extra piece.}) 20. Qxd2 (20. Ke1 {was White's best try when
Black should start again with 20...Nc4+}) (20. Kg1 Nf3+ 21. Kf1 Qxb5#) 20...
Qxb5+ 21. Kg1 Bxd2 22. Nc7+ Kxe5 23. Nxb5 Bf3 0-1
[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.19"]
[Round "9"]
[White "Tal, Mihail"]
[Black "Fuster, Geza"]
[Result "*"]
[ECO "B17"]
[Annotator "matthewsadler.me.uk"]
[PlyCount "48"]
[EventDate "1958.08.05"]
[EventType "tourn"]
[EventRounds "21"]
[EventCountry "SLO"]
[SourceTitle "IZT"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bc4 Bf5
8. Qe2 e6 9. Bg5 Be7 10. O-O-O h6 11. Bh4 Ne4 12. g4 Bh7 13. Bg3 Nxg3 14. fxg3
Qc7 15. Ne5 Bd6 16. h4 {What does h4 do? It supports g5 you would have thought.
The strange thing though is that you don't actually need h4 to achieve g5: in
fact it almost works better without! Take a look at the obvious 16.Rhf1 and
assume Black defends f8 with 16...Rf8.} (16. Rhf1 Rf8 17. g5 hxg5 18. Qh5 {
Threatening the bishop on h7 and Bxe6 exploiting the pin along the h5-e8
diagonal.} Bxe5 (18... Bf5 19. Rxf5 exf5 20. Nxf7) 19. dxe5 Bg6 20. Qxg5 Qe7
21. Qe3 {is very unpleasant for Black. However, the main point is that Black's
best defence isn't to leave the knight and try to escape to the queenside
somehow: Black has to bite the bullet and get rid of the knight on e5}) 16...
Bxe5 17. dxe5 Rd8 18. Rxd8+ Qxd8 19. Rd1 Qa5 {You start to see the point of 16.
h4 in comparison to 16.Rhf1. Rather than playing Rhf1 and then later Rd1,
White has gained the extra h4 move which feels useful. My initial feeling was
that White would be pressing in this position, but my engines think that Black
can hold the balance by targeting both White's structural weaknesses and the
bishop on c4. For example, it is not easy for White to establish full control
over the d-file while the queen on e2 is tied to the defence of the isolated
e-pawn, while Black's pressure against the pawn on a2 (together with the idea
of ...b5) is a constant irritation for White.} 20. Qe3 (20. Rd6 O-O 21. a3 (21.
Kb1 Qc5) 21... b5 22. Bd3 Bxd3 23. Rxd3 b4 {opens up an additional file after
which Black will always find one channel of defence.}) 20... O-O 21. Kb1 (21.
a3 b5 (21... Rd8 22. Rd6) 22. b4 (22. Be2 b4) 22... Qa4 23. Qb3 Qxb3 24. Bxb3
a5 25. Rd6 Be4 {is fine for Black: everything holds!}) 21... Rd8 22. Rd6 {
This impressive-looking idea achieves little against an ingenious defence:}
Rxd6 (22... b5 23. Bd3 (23. Bb3 c5) (23. Bf1 Rxd6 24. exd6 Qb4 25. d7 Qd6)
23... Bxd3 24. cxd3 Rxd6 25. exd6 Qb4 26. d7 Qd6 {draws} 27. Qxa7 Qxd3+ 28. Kc1
Qf1+) 23. exd6 Qb4 24. d7 Qd6 {and the d-pawn falls.} *
[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.19"]
[Round "9"]
[White "Tal, Mihail"]
[Black "Fuster, Geza"]
[Result "1-0"]
[ECO "B17"]
[Annotator "matthewsadler.me.uk"]
[PlyCount "42"]
[EventDate "1958.08.05"]
[EventType "tourn"]
[EventRounds "21"]
[EventCountry "SLO"]
[SourceTitle "IZT"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bc4 Bf5
8. Qe2 e6 9. Bg5 Be7 10. O-O-O h6 11. Bh4 Ne4 12. g4 Bh7 13. Bg3 Nxg3 14. fxg3
Qc7 15. Ne5 Bd6 {Thinking about this last line, it occurred to me that White
needs to be able to establish a rook on d6, but that White and keeps on
failing tactically because he is too slow defending his queenside against the
pressure from Black's queen on a5. So perhaps, rather than the move 16.h4
which hasn't turned out particularly useful in any line so far, we should
think about protecting the queenside with 16.a3.} 16. a3 b5 (16... Rf8 {
is still met by} 17. g5) (16... Bxe5 17. dxe5 Rd8 18. Rxd8+ Qxd8 19. Rd1 Qa5 {
now carries no threat whatsoever against the queenside, which means that White
can set up a much better structure:} 20. Qe3 O-O 21. Be2 {looking for Bf3 and
Qd4 for compete control} a6 22. Bf3 Rd8 23. Rd6 {with a great position for
White! Wonderful! The great, lamented coach Mark Dvoretsky would be proud of
me for finding such a move as 16.a3! The only thing I'm not sure about is
whether it is actually the best move. Of course 16.a3 offers Black a target on
the queenside to attack which means that Black might choose to switch back to
the plan we saw earlier: 16...b5!}) 17. Bd3 Bxd3 18. Rxd3 O-O {The position is
extremely double-edged. I'd rather be White but Black possibly has enough play
to keep afloat:} 19. g5 hxg5 20. h4 g4 21. Nxg4 b4 {I'm more nervous about
h4-h5 than I am about Black's play on the queenside so I would not want to
have Black in a practical game, but an engine might have a chance!} 1-0
[Event "British CF-14 Championship"]
[Site "Malvern College/ Worcestershi"]
[Date "1921.08.12"]
[Round "5"]
[White "Yates, Frederick Dewhurst"]
[Black "Thomas, George Alan"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "64"]
[EventDate "1921.08.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3
Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 Nc6 12. Nf1 cxd4 13. cxd4 Bg4 {The Yorkshire
Post of August 15th 1921 printed this game with bare comments. It claimed that
13…Bg4 was a novelty, but this is incorrect.} 14. d5 Nd4 15. Bd3 Nh5 {
An improvement over the 15...0-0 played against Capablanca, which led to one
of Capablanca's famous victories!} (15... O-O 16. Be3 Rac8 17. Bxd4 exd4 18. a4
Qb6 19. axb5 axb5 20. h3 Bxf3 21. Qxf3 Nd7 22. Rec1 Nc5 23. b4 Na4 24. Rxc8
Rxc8 25. e5 {Black's play has been fairly disastrous: the knight is offside on
a4, as is the Black queen on b6 while the looseness of the rook on c8 gives
White the opportunity for a strong central break} g6 (25... dxe5 26. Qf5) 26.
e6 Rf8 27. Ng3 Qb7 (27... fxe6 28. Qg4 {is very unpleasant} exd5 29. Bxg6 hxg6
30. Qxg6+ Kh8 31. Nh5) 28. Nf5 {A very nice move!} fxe6 29. dxe6 Qc7 30. Qc6 {
...and another great follow-up} Qd8 31. Nxe7+ Qxe7 32. Bxb5 Nc3 33. Qd7 Qxd7
34. Bxd7 {with a winning position.} Rb8 35. e7 Kf7 36. Re1 Re8 37. Bxe8+ Kxe8
38. Re6 d5 39. Kf1 Nb5 40. Ke2 Nc7 41. Re5 Na6 42. b5 Nb4 43. b6 d3+ 44. Kd2
Kd7 45. e8=Q+ Kd6 46. Qe7+ Kc6 47. Qxb4 {1-0 (47) Capablanca,J-Dus Chotimirsky,
F St Petersburg 1913}) 16. Be3 Nxf3+ (16... Bxf3 17. gxf3 Nf4 {was
Rubinstein's improvement a few years later and it's a really strong one. The
knights on f4 and d4 hold White's position in a vice. I searched long and hard
for a way to develop something for White but found nothing... and my engine
was even less impressed than me!} 18. Bxf4 (18. Rc1 Qa5 {Threatening ...Qxe1} (
18... Qa7 19. Bxf4 exf4 20. e5 dxe5 21. Rxe5 O-O 22. d6 Bxd6 23. Rd5 {winning
a piece (23...Rad8 24.Rxd4) was the tactical sequence that got me interested
in trying to make 18.Rc1 work, but there are many better paths along the way
including 18...Qa5 and 20...0-0!}) 19. Bd2 Qb6 20. Bb1 Bg5 {is an excellent
position for Black}) 18... exf4 19. Nd2 (19. Bb1 Qa7 (19... Bf6 20. e5 {
is not the way to go!})) 19... Bf6 {Black is clearly better. However, we see
that Caissa is capricious but fair. Yates was better against Thomas and lost;
he is much worse against Rubinstein but won. It's a little tough on Rubinstein
though!} 20. Nb3 O-O 21. Nxd4 Bxd4 22. Qd2 Qe7 23. Rac1 Qf6 24. Rc2 g6 25. Rec1
Rfb8 26. b4 Re8 27. Kh1 Kg7 28. Bf1 Reb8 29. Rc6 Be5 30. Bh3 Ra7 31. Bc8 Rba8
32. Rc7 Qd8 33. Rxa7 Rxa7 34. Rc6 a5 35. Ba6 axb4 36. Qxb4 Qh4 37. Kg2 Qg5+ 38.
Kh1 f5 39. exf5 Qxf5 40. Kg2 Qd3 41. Qxb5 Qxb5 42. Bxb5 Rxa2 43. Bd3 Rd2 44.
Be4 Kf6 45. Rc2 Rd1 46. Re2 Bd4 47. Bc2 Rc1 48. Re6+ Kg5 49. Re2 Bc5 50. h3 Ra1
51. Kh2 Ra3 52. Kg2 Rc3 53. Be4 Rc4 54. Kh2 Rd4 55. Kg2 Kh4 56. Kh2 Rb4 57. Kg2
Rb7 58. Bd3 g5 59. Bf5 h5 60. Be6 Rb1 61. Bf5 Rd1 62. Be4 Rd4 63. Kh2 Rd1 64.
Kg2 Bd4 65. Bc2 Rc1 66. Bf5 Be5 67. Rd2 Ra1 68. Be6 Bc3 69. Rc2 Ba5 70. Rb2 Rd1
71. Rb7 {Rubinstein has tried without success to win a completely drawn
position. But now he tragically oversteps the mark.} Rd2 72. Bg4 {Ouch ouch
ouch!! The Black king on h4 is getting mated!} Bb6 73. Rxb6 hxg4 74. hxg4 Rb2
75. Rc6 Rb1 76. Rc4 Re1 77. Re4 Rxe4 78. fxe4 Kxg4 79. e5 f3+ 80. Kg1 Kf5 81.
e6 {1-0 Yates,F-Rubinstein,A Moscow (Russia) 1925}) 17. gxf3 Bc8 {Strangely
enough, in their book "The Unknown Capablanca", Hooper and Brandreth attribute
this idea to Yates! I wonder whether this is true or just a misunderstanding!}
18. a4 Rb8 19. axb5 axb5 20. Ra7 Qd8 21. Ng3 Nf4 22. Bxf4 (22. Bf1 O-O 23. Qc2
{ignoring the knight on f4 looks like a stronger idea: it's not clear how
Black is expecting to develop any pressure on the kingside (you see the
difference with Rubinstein's idea in which the knight on f4 is well-supported
by the knight on d4). However, I understand Yates' idea completely: with a
rook already on the 7th rank, he is looking to open up the position and
include his knight and rook on e1 in the mix.}) 22... exf4 23. Nf5 Bh4 {
An ingenious and confusing move from Sir George. The exchange of the
dark-squared bishop for the knight on f4 and White's open kingside open a
range of tactical possibilities. 23...Bh4 eyes the f2 square and casts a
sidelong glance at the now unprotected rook on a7.} 24. Qe2 {The start of a
disastrous path. White had 2 better choices than this move:} (24. Nxh4 Qxh4 25.
e5 O-O (25... Qg5+ 26. Kh1 dxe5 27. Bxb5+ Rxb5 28. Qa4) 26. e6 fxe6 27. dxe6
Re8 28. Bc2 (28. Be4 Bxe6 29. Bc6 Qg5+ (29... Rec8 30. Qxd6 (30. Rxe6 Qg5+ (
30... Rxc6 31. Qd5) 31. Kf1 Rxc6 32. Ree7 {was my line. White should be better}
) 30... Bc4 31. Ree7 {is my engine's even stronger idea}) 30. Kh1 Bh3 31. Rg1
Re5 {Wow!! Never occurred to me!} 32. Rxg5 Rxg5 33. Qxd6 Bg2+ 34. Kg1 Bh3+ {
is a draw by repetition}) 28... Bb7 29. Be4 d5 30. Bd3 {was my idea of best
play. I thought White should have an edge but my engine was not impressed.} (
30. Bxd5 Qg5+) 30... Bc8 31. e7 Qg5+ 32. Kh1 Rb6 {A very nice idea, looking
for ...Re6} 33. Qc1 Re6 34. Rxe6 Bxe6 35. Qc6 Rxe7 36. Rxe7 Qxe7 37. Qxb5 {
is about equal}) (24. Bxb5+ Rxb5 25. Qa4 Bxf2+ 26. Kxf2 Qb6+ 27. Qd4 (27. Nd4
O-O {is winning for Black} 28. Qxb5 Qxd4+) 27... Rxb2+ 28. Re2 Rxe2+ 29. Kxe2
Qb5+ 30. Kd2 Bxf5 31. Ra8+ Ke7 32. Rxh8 Bd7 {looks better for White despite my
engine's assessment of 0.00!}) 24... O-O 25. Nxh4 Qxh4 26. Bxb5 {A terrible
blunder, maybe out of confusion at not being able to find a decisive
continuation earlier} Bh3 {Suddenly White is defenceless!} 27. Kh1 Rxb5 28. Rg1
(28. Qxb5 Qxf2) 28... Rc5 29. b4 Rc3 30. Qb2 Rfc8 31. b5 Qh5 32. Qe2 Qg6 0-1
[Event "Sam Black Memorial Open Blitz"]
[Site "?"]
[Date "2018.06.05"]
[Round "6"]
[White "Richardson, John R"]
[Black "Sadler, Matthew D"]
[Result "1/2-1/2"]
[ECO "A57"]
[PlyCount "62"]
[EventDate "5.??.??"]
[SourceVersionDate "2018.02.18"]
1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d6 6. Nc3 Nbd7 7. a4 Qxb6 8. a5
Qa7 9. e4 g6 10. f4 Bg7 11. Nf3 O-O 12. Bc4 Rb8 13. O-O Rb4 14. Qe2 {Slightly
distracted by the manic time scramble on the next board, I had made a pretty
poor impression of a Benko player! White has a beautiful setup, and Black's
only counterplay involves weakening his kingside - by playing a move like ...
e6 - or moving pieces away from the kingside - with a manoeuvre like ...
Ne8-c7-b5. Neither are tempting but doing nothing is also not an option, so I
asked my king to be brave and looked for piece counterplay.} Ne8 15. e5 Nc7 16.
b3 Bb7 17. Bb2 Re8 (17... Rxb3 18. Bxb3 c4+ 19. Kh1 cxb3 {was what I had been
teeing up for, but it looked less appealing when it came to playing it. So
instead, I kept waiting.}) 18. Ng5 {Ouch. That looked nasty! I decided that my
queen had to return, but missed John's next move.} Qb8 19. Nxf7 {Worse news!
After some thought, I came up with a neat little trap} Kxf7 20. e6+ Kg8 21.
exd7 Rf8 22. Qxe7 Qd8 23. Qxd6 Bd4+ 24. Kh1 Rf6 {Trapping the queen! Even
discussing the game with John after the tournament, we were both blind to the
very obvious} 25. Qb6 (25. Qxc7 Qxc7 26. d6+ {winning! I should have played 24.
..Rxc4 first when my trap really would have been genius! I had been expecting
25.Qxf6 which looked somewhat worrying too. John however came up with a
typical bit of blitz craziness!}) 25... Rfxb6 26. axb6 Nb5 27. Nxb5 Bxb2 28.
Rae1 Qxd7 29. Nc7 Kg7 30. Ne6+ Kh6 31. f5 Bxd5 {and now in a position that my
engine says is slightly better for White(!) my memory fails me. Suffice it to
say that in the ensuing time-scramble, I got to queen and bishop vs tow rooks,
lost my queen for a rook, then captured John's rook and we finally agreed a
draw with seconds on our clocks!} 1/2-1/2
[Event "Sam Black Memorial Open Blitz"]
[Site "?"]
[Date "2018.06.05"]
[Round "12"]
[White "Spearman, David"]
[Black "Sadler, Matthew D"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "66"]
[EventDate "5.??.??"]
[SourceVersionDate "2018.02.18"]
1. d4 Nf6 2. c3 d5 3. Bg5 c5 4. e3 Qb6 5. Qc1 Nc6 6. Nd2 Bf5 7. Nb3 c4 8. Nd2
Rc8 {Black can be fairly happy with his opening as White is not yet able to
challenge Black's bind on the queenside with 9.b3. White therefore tries to
undermine Black's pawn structure from another angle.} 9. Bxf6 (9. b3 cxb3 10.
axb3 Nb4 {wins}) 9... gxf6 10. f3 {A very risky idea, especially after White's
previous move.} Bh6 11. Kf2 e5 {The exchange of White's dark-squared bishop
makes itself felt: ...Bxe3+ followed by ...exd4 is already a threat!} 12. Ne2
Kd8 {l liked the way I mobilised my rooks and put my king to safety in the
next few moves! ...Kd8 frees e8 for the king's rook.} 13. g3 Re8 {Threatening .
..Bxe3+ amongst other things.} 14. f4 Bd3 {With the threat of ...Bxe2 followed
by ...exd4.} 15. Nf3 Rc7 {Preparing to double rooks on the e-file} 16. Qd2 Rce7
17. Re1 Kc7 {Getting the king out of the way of the queen on d2.} 18. Nc1 Be4
19. Bg2 exf4 20. exf4 Ne5 {A nice idea that I couldn't resist playing while
considering my 19th move! Strangely, there isn't much of a threat, so White
could play a solid waiting move like 21.Rhf1! However, my opponent feared the
check on g4 (not surprisingly) and decided to remove the knight on e5.} 21.
Nxe5 fxe5 22. Bxe4 exf4 23. gxf4 Rxe4 (23... Qf6 {did flash into my mind and
was probably even stronger, but the simple text seemed good enough to me.}) 24.
Rxe4 Rxe4 25. Ne2 Qf6 26. Kf3 Qh4 27. b3 Qh5+ 28. Kf2 Qh4+ 29. Kf3 Qh3+ 30. Kf2
Qg4 31. bxc4 Bxf4 32. Nxf4 Rxf4+ 33. Ke1 Qf3 0-1
[Event "Las Palmas-04"]
[Site "Las Palmas"]
[Date "1975.04.11"]
[Round "5"]
[White "Tal, Mihail"]
[Black "Tatai, Stefano"]
[Result "1-0"]
[ECO "A61"]
[PlyCount "79"]
[EventDate "1975.04.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "ESP"]
[EventCategory "10"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg5 {A system
against the Benoni that I played when I was very young as an extension of the
Smyslov system against the King's Indian - 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3
0-0 5.Bg5 - which my coach Steve Giddins had taught to me.} h6 (7... Bg7 8. e3
O-O (8... h6 9. Bh4 g5 10. Bg3 Nh5 11. Nd2 Nxg3 12. hxg3 O-O 13. Nc4 Qe7 14.
Bd3 (14. Be2 Rd8 15. O-O Nd7 16. a4 Ne5 17. Nxe5 Qxe5 18. a5 Rb8 19. Ra2 Bd7
20. Nb5 Bxb5 21. Bxb5 b6 22. a6 Rbc8 23. Qd3 Rc7 24. b3 Qc3 25. Qxc3 Bxc3 26.
Rc2 Bf6 27. g4 Re7 28. Rc4 Rc8 29. g3 Bg7 30. Rd1 Rf8 31. Rd3 Kh7 32. Kg2 Kg6
33. Rd1 h5 34. gxh5+ Kxh5 35. g4+ Kg6 36. Rc2 Rh8 37. Bd3+ Kf6 38. Kg3 Ree8 39.
Bb5 Re4 40. Rc4 Rxc4 41. bxc4 Ke7 42. Ba4 Be5+ 43. Kf3 Rh4 44. Rg1 f5 {1/2-1/2
(44) Botvinnik,M-Tal,M Moscow (Russia) 1960}) 14... Nd7 15. O-O Ne5 16. Nxe5
Qxe5 17. Re1 Bd7 18. Rb1 g4 19. Ne2 b5 20. b3 Rfc8 21. Nf4 c4 22. bxc4 bxc4 23.
Bc2 Rab8 24. Qe2 Qc3 25. Rec1 Qa3 26. Kh2 a5 27. Re1 Rb4 28. Ne6 fxe6 29. Qxg4
Re8 30. Bg6 Re7 31. Qh4 Bf8 {0-1 (31) Germek,M-Tal,M Bled 1961}) 9. Nd2 {
represents White's initial opening goal. This requires some explanation!
Black's main counterplay in the Benoni is directed against the White centre,
and in particular the pawn on e4 which Black can attack easily with his rook
along the half-open e-file. Black's typical Benoni counterplay with ...b5 is
based on the premise that this play will overload one of the pieces defending
e4 (typically a knight on c3) 1. Playing e3 instead of e4 avoids giving
Black an early central target which should make counterplay with ...b5 both
less dangerous and more difficult to achieve. 2. Developing the dark-squared
bishop outside the pawn chain with 7.Bg5 ensures that the bishop is not left
passive on c1 after e2-e3. 3.Nd2 controls e4 (to prevent Black from using
this square) and also removes Black's option of netting the bishop pair with ..
.h6, ...g5 and ...Nh5. Once White has completed his development, he will
most likely execute one of 2 typical anti-Benoni plans: a. Lining up against
the d6 pawn by bringing the dark-squared bishop to the h2-b8 diagonal and
combining it with Nc4 b. Advancing e3-e4 and then f2-f4 to activate White's
central pawn majority. This idea of playing first in a restrained fashion
with e2-e3, developing and then only later expanding with the desired e3-e4
and f2-f4 reminds me strongly of the system I played for most of my
professional career against the Benoni structures (usually transposing from a
King's Indian): 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 0-0 6.Bg5 c5 7.d5 e6 8.
Qd2 exd5 9.cxd5. In this case, White plays f3 to shore up the e4 pawn to
inhibit counterplay with ...b5. Once White has completed his development, he
looks to advance f3-f4! The thing that put me off playing this as White is
the line that Tatai played: Black has a window of opportunity to win the
bishop pair before White achieves his desired structure and Tatai - just like
Tal did when he played the Black side - takes it!}) 8. Bh4 g5 9. Bg3 Nh5 10. e3
Nxg3 11. hxg3 Bg7 {It's worth spending a little time evaluating this position
as quite a lot has happened in 11 moves! In a short space of time, Black has
established a fair amount of control on the dark squares: his dark-squared
bishop rules the h8-a1 diagonal and his counterpart has been exchanged. White
has been given doubled pawns on the kingside and without the dark-squared
bishop, Black's pawn weakness on d6 is harder to attack. The light squares are
the downside of Black's position. Winning the bishop pair with ...h6 and ...g5
has cost Black some control of the f5 square, which would be a very tempting
square for a White knight. Moreover, playing e3 instead of e4 has given White
the ability to attack this square with a bishop on d3 and a queen on c2. In
general, I think that Black should be fine, but Tal himself got into trouble
with Black against Furman so some care is required.} 12. Qc2 Nd7 13. Bd3 {
These moves look very natural for White, but they are actually quite subtle.
Both against Botvinnik in 1960 and Germek in 1961, Tal had to face the early
manoeuvre Nd2-c4 from White. In both cases, Tal reacted with ...Nd7-e5,
exchanging off the knight which has taken so much trouble to reach c4! In both
cases, Tal had a comfortable game (see the games quoted earlier) In this game,
Tal follows Furman's plan of leaving the knight on f3 and aiming at the f5
square instead. In that way, if Black does play ...Ne5 to exchange knights,
then White has at least not wasted time moving his knight on f3. Furman also
had an excellent plan in mind which he implemented to perfection against Tal.}
Nf6 {A natural developing move which had been played already by Vladimirov
(although the position on the 23rd move in which a draw was agreed was pretty
poor for Black!) but now the plan of exchanging knights with ...Ne5 is much
further away. I wonder whether Tatai was worried White might castle queenside
if he castled kingside too early!} (13... a6 14. a4 Rb8 15. O-O O-O 16. Rab1
Qc7 17. Rfc1 Re8 18. b4 {A great idea, expanding on the queenside where Black
is typically strongest.} cxb4 19. Rxb4 Nc5 20. Bh7+ Kf8 21. Nd4 {and this is
the key point, justifying White's entire opening strategy. The pawn on e3
provides support to a White knight on d4 which then clamps down on the f5
square weakened by Black's early ...h6 and ...g5. Tal struggles to free
himself, but has absolutely no chance as White consolidates his grip.} Bd7 22.
Bf5 Rbc8 23. Rc4 Kg8 24. g4 {White manages to make use of an advantage of his
doubled g-pawns: he can clamp down on the c5 square.} Qa5 25. Nce2 {Another
great move, linking all White's minor pieces to the attack and occupation of
the weak f5 square.} Rcd8 26. Bxd7 Nxd7 27. Nf5 Nf6 28. Rc7 Qxd5 29. Ne7+ Rxe7
30. Rxe7 {winning the exchange after which the result was never in doubt. 1-0
(68) Furman,S-Tal,M Tallinn (Estland) 1971}) 14. Nd2 {Since ...Ne5 is no
longer on the table, Tal switches back to Botvinnik's plan of Nd2-c4.} (14. Rb1
Qa5 15. Nd2 a6 16. Nc4 Qc7 17. a4 O-O 18. O-O Bd7 19. a5 Bb5 20. Nb6 Bxd3 21.
Qxd3 Rae8 22. Rfc1 Re5 23. b4 {1/2-1/2 (23) Yuferov,S-Vladimirov,Y Minsk
(Belarus) 1974}) 14... O-O 15. Nc4 Qe7 16. a4 Bd7 17. O-O {Black has developed
his pieces to reasonable squares, but it isn't too clear what he is intending
from here on. I would be tempted to play ...Ng4-e5 anyway, even though it has
cost some extra time. Tatai's slow plan doesn't really hit the mark.} Rab8 18.
Rfe1 {An interesting plan from Tal, hinting at e3-e4 but hedging his bets by
keeping a rook on the a-file for queenside play.} b6 19. e4 {As we mentioned
earlier, the fact that White played e3 earlier does not mean that he will
never play e4 when he is ready for it! Black's pieces are clumsily-placed and
ill-equipped to deal with the typical e4-e5 break.} Rfe8 20. Nb5 (20. e5 dxe5
21. d6 Qf8 22. Bf5 {is mentioned by Karolyi and is also my engine's strong
preference. White has very strong compensation for the pawn as Nb5 and later
a5 are coming. The text is also strong, though it gives Tatai time to
reestablish some coordination by bringing the knight to g4.}) 20... Bxb5 21.
axb5 Ng4 22. Qd1 Qd7 {A very good defensive move: Black's position stands or
falls by his knight on g4! First of all, the knight illustrates the weak side
of White's early opening strategy: the doubled g-pawns make it hard to drive
the knight away from its advanced post while White's limited protection of the
dark-squares (due to White allowing the exchange of his dark-squared bishop)
turn the knight into a concrete threat (...Bd4 is threatened). These
weaknesses are particularly evident as White begins to emerge from his
cautious opening shell (for example playing e3-e4). Secondly, the knight
covers the e3 square and stops White from transferring his own knight to f5.
Not surprisingly, Tal decides that this monster knight is worth a rook!} (22...
Ne5 23. Ne3 Nxd3 24. Nf5 {is pointed out by Karolyi, with a wonderful position
for White.}) 23. Rxa7 Qxa7 24. Qxg4 {An excellent practical idea, removing
Black's most active piece for the cost of the exchange. I would expect Black's
best course to be an attempt to activate his other pieces even at the cost of
material: for example, 24...Qe7 as Karolyi suggests, followed by ...Bd4 and ...
Ra8 to activate his rooks (which currently have no scope) even at the cost of
a pawn. Tatai's reaction is fairly meek.} Rbd8 25. Qf5 Re5 {Giving back the
exchange is one way to get rid of the powerful White knight, but now Black is
fighting for a draw at most.} 26. Nxe5 Bxe5 27. f4 Bd4+ 28. Kh2 Qd7 29. Qxd7
Rxd7 30. Ra1 c4 {The decisive mistake according to Karolyi. Defending the b6
pawn with the rook was better:} (30... Kg7 31. Ra6 Rb7 32. Kh3 (32. b3 Be3 {
is the key resource pointed out by Karolyi and the reason he considered 28.Kf1
to be better than 28.Kh2.}) 32... Bxb2 33. Kg4 Kf6 {which Karolyi considers to
be holdable for Black. I'm a bit nervous about that to be honest: White can
play 34.Ra8 when he has all sorts of ways to dish out little pin-pricks to
Black's position like Rd8, Rh8, Re8 or Rc8-c6! I wouldn't like to hold that
with Black in time-trouble!}) 31. Bxc4 Bxb2 32. Ra8+ Kg7 33. Be2 {A neat
manoeuvre: the bishop goes to g4 and then White powers through with e5.} Bf6
34. Rb8 Bd8 35. Bg4 Bc7 36. Re8 Rd8 37. Re7 Bb8 38. Rb7 Kf6 39. Bh5 Rf8 40. Kh3
{Black is paralysed!} 1-0
[Event "Largs Premier op"]
[Site "Largs"]
[Date "1997.??.??"]
[Round "2"]
[White "Grant, Alan"]
[Black "Arkell, Keith C"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2205"]
[BlackElo "2545"]
[SetUp "1"]
[FEN "8/p4pkp/6p1/8/r7/8/PR2K1PP/8 b - - 0 36"]
[PlyCount "49"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SCO"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
{[#]} 36... Ra3 37. Kd2 h5 38. Kc1 h4 39. Rf2 h3 40. Kb2 hxg2 41. Rxg2 Rh3 42.
Kc2 Re3 43. Kd2 Ra3 44. Ke1 f5 45. Rc2 Kh6 46. Kf2 Kh5 47. Kg2 g5 48. Rf2 f4
49. Rc2 Kh4 50. Rb2 g4 51. Rc2 f3+ 52. Kg1 Rd3 53. a4 Ra3 54. Rc4 Ra1+ 55. Kf2
Ra2+ 56. Ke3 Re2+ 57. Kd3 Rxh2 58. Rc7 Ra2 59. Rxa7 f2 60. Rf7 Kg3 0-1
[Event "New York International Masters-01"]
[Site "New York,NY"]
[Date "1924.03.23"]
[Round "6"]
[White "Capablanca, Jose Raul"]
[Black "Tartakower, Saviely"]
[Result "1-0"]
[ECO "A85"]
[SetUp "1"]
[FEN "5k2/p1p4R/1pr5/3p1pP1/P2P1P2/2P2K2/8/8 w - - 0 35"]
[PlyCount "35"]
[EventDate "1924.03.16"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "USA"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[#]} {Black's king is pinned to the back rank and White's rook is lording it
over the 7th rank, but Black's rook is threatening to cause some damage by
capturing the loose pawn on c3 and driving White's king backwards.
Capablanca's solution is radical: anything for the activiation of his king!
It's only by combining his king and rook (just as in K&R vs K) that the
opposing king can be put in danger.} 35. Kg3 Rxc3+ 36. Kh4 Rf3 37. g6 {The
most elegant and efficient, activating White's passed pawn and freeing a path
for the White king to f6} Rxf4+ 38. Kg5 Re4 39. Kf6 {The last important point:
White leaves the black pawn on f5 as a barrier to Black perpetual checks from
the back. The king is invulnerable to interference on f6 and that makes it a
fearsome piece indeed!} Kg8 40. Rg7+ Kh8 41. Rxc7 Re8 42. Kxf5 Re4 43. Kf6 Rf4+
44. Ke5 Rg4 45. g7+ Kg8 46. Rxa7 Rg1 47. Kxd5 Rc1 48. Kd6 Rc2 49. d5 Rc1 50.
Rc7 Ra1 51. Kc6 Rxa4 52. d6 1-0
[Event "World-ch12 Alekhine-Capablanca +6-3=25"]
[Site "Buenos Aires"]
[Date "1927.11.26"]
[Round "34"]
[White "Alekhine, Alexander"]
[Black "Capablanca, Jose Raul"]
[Result "1-0"]
[ECO "D51"]
[SetUp "1"]
[FEN "8/5p2/k5pK/P3r2p/7P/6P1/R4P2/8 b - - 0 66"]
[PlyCount "32"]
[EventDate "1927.09.16"]
[EventType "match"]
[EventRounds "34"]
[EventCountry "ARG"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[#]} 66... Rf5 {Here Alekhine chose the less accurate 67.f4 but the most
thematic was} 67. f4 (67. Kg7 Rf3 68. Kf8 Rf6 69. Kg8 Rf3 70. Kg7 Rf5 71. f4)
67... Rc5 68. Ra3 Rc7 69. Kg7 Rd7 70. f5 gxf5 71. Kh6 f4 72. gxf4 Rd5 73. Kg7
Rf5 74. Ra4 Kb5 75. Re4 Ka6 76. Kh6 Rxa5 77. Re5 Ra1 78. Kxh5 Rg1 79. Rg5 Rh1
80. Rf5 Kb6 81. Rxf7 Kc6 82. Re7 1-0
[Event "Coventry op 1st"]
[Site "Coventry"]
[Date "2004.04.18"]
[Round "5"]
[White "Arkell, Keith C"]
[Black "Wu, Li"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2507"]
[BlackElo "2197"]
[SetUp "1"]
[FEN "6k1/2pr3p/5P2/6PK/8/8/8/2R5 b - - 0 54"]
[PlyCount "4"]
[EventDate "2004.04.16"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]
{[#]} {Black's move in the game did nothing to curtail the massive activity of
White's king and rook} 54... Kf7 (54... Rd2 55. Rxc7 Rh2+ {was necessary.}) 55.
Kh6 Kg8 56. Re1 1-0
[Event "Kings Place"]
[Site "?"]
[Date "2018.07.07"]
[Round "?"]
[White "Sadler, Matthew D"]
[Black "Merriman, John"]
[Result "1-0"]
[ECO "A17"]
[Annotator "https://matthewsadler.me.uk"]
[SetUp "1"]
[FEN "r2r2k1/1bq1bppp/ppn1pn2/2p5/P1BP4/1Q2PN2/1P1BNPPP/2RR2K1 b - - 0 14"]
[PlyCount "30"]
[SourceVersionDate "2018.07.10"]
{[#]} {Despite its calm appearance, this position contains some interesting
positional and tactical features. Firstly, Black seems to have developed
smoothly and logically but there is one slight dissonance in his position: the
knight on c6. Ideally Black's queen knight would be on d7 from where it 1.
Defends b6. This allows Black to complete development and redeploy the Black
queen via ...Rac8 followed by ...Qb8-a8. 2. Frees the a8-h1 diagonal so that
Black's bishop on b7 puts pressure on White's knight on f3. 3. Reinforces c5
and thus dissuades dxc5 due to ...Nxc5 gaining a tempo on the queen On c6,
the knight attacks the d4-pawn as well as the b4-square that White weakened
with a4, but neither of these particularly worry White. White's piece
configuration of Qb3, Bd2, Ne2 and Rc1 highlights the drawbacks of Black's
development: 1. The queen on b3 attacks the pawn on b6, preventing Black from
moving his queen off the c-file 2. The rook on c1 eyes the queen on c7 and
dissuades Black from relieving the pressure against the c5 pawn 3. The knight
on e2 supports the pawn on d4 and allows White to recapture on d4 with a
knight after ...cxd4 (combining with the rook on c1 to put pressure on the
knight on c6). Moving the knight from c3 to e2 also activated White's
dark-squared bishop. 4. The bishop on d2 restricts the movement of the knight
on c6 by attacking both b4 and a5. Secondly, Black's development of the
light-square bishop on the a8-h1 diagonal and the king's rook to d8 has
weakened Black's protection of the e6 and f7 squares and White's position is
well-placed to exploit this: 1, The queen and light-squared bishop are lined
up along the a2-g8 diagonal 2. White's knights can emerge at f4 or g5 to
create some very dangerous sacrificial threats. In fact, White's next move is
likely to be 15.Nf4 increasing the pressure on e6 which explains Black's
provocative choice in the game.} 14... Nd5 {Black blocks the a2-g8 diagonal,
but his knight is anything but stable on that square. It didn't take me too
long to decide on the most aggressive reply.} 15. e4 Ndb4 {This aggressive
reply caught me by surprise. By blocking the e1-a5 diagonal, Black introduces
the threat of ...Na5 exchanging off White's dangerous light-squared bishop.
However moving the king's knight from its defensive post on f6 to an advanced
queenside outpost felt intuitively too risky: 1. White's sacrifices on e6
were likely to increase in strength with one less Black defensive piece on the
kingside. 2. ...Ndb4 also exposes Black to tactical tricks exploiting the
opposition of the rook on c1 and the queen on c7 starting with White playing
Bxb4. I was sure that there would be some way to navigate to a clear
advantage but to my surprise during the game, I was unable to find any clear
path. Even more surprisingly, I was unable to do so during analysis either!} (
15... Nf6 16. Bxe6 fxe6 17. Nf4 {looks strong for White.}) 16. Bxb4 (16. dxc5
Bxc5) (16. Bxe6 fxe6 17. Nf4 {is the line I analysed at great length after the
game.} (17. Qxe6+ Kh8 18. Bxb4 Nxb4 19. Ne5 Rf8 20. Nf7+ (20. Rc3 {threatening
Ng6+ followed by Rh3+ mate is simply met by} Bxe4) (20. dxc5 {interested me
for a while during the game but simply} Rf6 {forces a draw by repetition.} 21.
Nf7+ Kg8 22. Nh6+ Kh8) 20... Rxf7 21. Qxf7 Bxe4 {looked good for Black to me
during the game, and that is indeed true.}) (17. Bxb4 Nxb4 18. Qxb4 {This is
the exploitation of the opposition of the rook on c1 and queen on c7 I was
talking about. Unfortunately, it doesn't seem to promise White any advantage.}
Bxe4 19. dxc5 Bxf3 20. gxf3 Bxc5 21. Qe4 Qe7 {looked even during the game and
that's a correct assessment.}) 17... Qc8 {I hadn't spotted this during the
game, but only in analysis afterwards. I thought I'd broken it but with my
engine's improvement it seems to be good for Black!} (17... Na5 {is a typical
idea to distract the White queen from the a2-g8 diagonal.} 18. Qxe6+ Kh8 19.
Ne5 {exploiting the abscence of the Black knight from c6.}) (17... Re8 18. Nxe6
{The engine move} (18. Qxe6+ Kh8 19. Qh3 {looked powerful to me, threatening
Ng6+ and Qe6# and also d5. My engines also see this as a White advantage
though not too great.}) (18. dxc5 Bd8 {is the key defensive move, to meet Nxe6
with ...Qf7 while keeping the g5 square covered against Nfg5.} (18... bxc5 19.
Nxe6 Na5 20. Qc3 {shows the value of inserting dxc5 before capturing on e6.})
19. Nxe6 (19. Bxb4 Qxf4) 19... Qf7) 18... Na5 19. Qxb4 Qc6 (19... Qd6 20. Nxc5
{is the same}) 20. Nxc5 (20. d5 Qxe6 21. Qxa5 Qxe4 (21... Qg6 22. Qc3 Qxe4 23.
Bg5 {seemed to keep an edge for White.} Bxd5 24. Re1) 22. Qxb6 Bxd5 {should
give Black some play for the pawn and was my main line during analysis. I saw
20.Nxc5 but couldn't believe that Black wouldn't find a way to cause some
trouble. My engine however is unconcerned!}) 20... Qg6 (20... Bxc5 21. dxc5
Rxe4 {looking to follow up with ...Rg4.} 22. Qxb6 {is the key riposte.}) 21.
Qa3 bxc5 22. Bxa5 Bxe4 {looked like some compensation to me somewhere, but my
engine disagrees wholeheartedly!} 23. dxc5) (17... Bc8 18. Nxe6 Bxe6 19. Qxe6+
Kh8 20. Bxb4 {This simple move is the key.} (20. d5 Nd3 {is a nasty riposte.}
21. dxc6 Rd6 {followed by ...Nxc1.}) 20... Nxb4 (20... Rd6 21. Qb3 Nxb4 (21...
cxb4 22. d5) 22. Qxb4) 21. Ne5 Rf8 22. Nf7+ Rxf7 23. Qxf7 Rf8 24. Qe6 {I
thought this was very good for White but my engine finds a way to minimise the
damage for Black.} Nc6 (24... Rf6 25. Qg4) 25. a5 {My engine's main line} (25.
d5 Rf6 (25... Nd4 {fails to} 26. Rxd4 Qf4 27. Rf1 cxd4 28. Qxe7 d3 29. d6 d2
30. h3 {is winning for White.}) 26. Qh3 Ne5 {My engine likes Black.}) 25...
bxa5 26. dxc5 {looks a touch more comfortable for White.}) 18. Bxb4 (18. Nxe6
Na5 {wins the knight on e6.}) 18... Nxb4 (18... cxb4 19. Qa2 {was my main line
which is good for White. The White queen sidesteps ...Na5 and Nxe6 is
threatened.}) 19. Nxe6 c4 {is the elegant way of refuting this line.} (19...
Bxe4 {is also fine according to my engine!}) 20. Rxc4 Qxe6 {It seems therefore
that the sacrifice on e6 fails tactically. It's therefore necessary to revise
my opinion of the risky 15...Ndb4. Sometimes it's a good defensive technique
to force the opponent to attack before his pieces are completely mobilised and
tempting White to sacrifice on e6 before having played Nf4 seems like a good
example of this. I certainly didn't see all these lines in the 7 or 8 minutes
I spent on this move, but I sensed that the situation after 15.Bxe6 was
anything but clear. I therefore took a good practical decision and constructed
a different attacking setup which I think was unexpected for Black.}) 16...
Nxb4 17. Ne5 {From a practical point of view, this is a good decision and
probably also from an objective point of view. By exchanging on b4, White
removes Black's idea of ...Na5 and thus increases the stability of his
attacking light-squared bishop battery along the a2-g8 diagonal. This means
that although Black has gained the advantage of the two bishops, he now has to
think of a new way of "getting at" White's position. Moreover, 17.Ne5 has
increased the pressure against Black's vulnerable e6 and f7 squares
considerably which requires some accurate calculation from Black. My opponent
played his reply fairly quickly and allowed me to demonstrate my main idea.}
Bf6 (17... Rxd4 {is my engine's main line and is a radical way to break up
White's attacking structure. I hadn't considered it at all during the game.}
18. Rxd4 (18. Nxd4 Qxe5 {is very pleasant for Black.}) 18... cxd4 19. Nxf7 {
looks awful for Black, but my engine finds a path!} d3 20. Bxe6 (20. Bxd3 Qd7
21. Rc7 {is another surprising engine line.} Qxc7 22. Qxe6 Bf6 23. Ng5+ Kh8 24.
Nf7+ {is a draw by repetition.}) 20... dxe2 21. Ng5+ Kh8 22. Nf7+ Kg8 23. Ng5+
{is a draw by repetition.}) 18. Nxf7 Kxf7 (18... Qxf7 19. Bxe6 {wins.}) 19.
Bxe6+ Ke7 (19... Kf8 20. Qxb4 Qc6 {was something I was puzzling about during
the game while my opponent was thinking about 17...Bf6.} 21. Qb3 (21. Qc4 Qxe4
22. d5 Qxc4 23. Rxc4 Bxb2 {didn't look amazing for White during the game
though probably a small edge. Whilst playing around with the position on my
pocket chess set after the game, I found something much stronger which is also
the engine's main line.}) 21... Qxe4 22. d5 {I hadn't appreciated the strength
of this idea during the game.} Qxe2 23. Qxb6 Rab8 (23... Qxb2 24. Qc7 Be7 25.
Rb1 {wins the bishop on b7.}) (23... Bc8 24. Qxc5+ Be7 25. d6 Rxd6 26. Qf5+ {
wins.}) 24. Re1 {A strong and not so obvious idea.} Qd2 {Keeping the queen on
a dark square to avoid any discovered checks.} (24... Qh5 25. Qxc5+ Be7 26.
Qxe7+ Kxe7 27. Bg4+ {is the nasty point!}) (24... Qd3 25. Qxc5+ Be7 26. Qxe7+
Kxe7 27. Bf5+ {is very good for White and there may be better options.}) 25.
Qc7 {Now the Black queen can no longer defend f7 from h5.} (25. Rcd1 Qf4) 25...
Be7 26. Rcd1 Qg5 (26... Qxb2 27. d6) 27. Rd3 {with Rf3+ to follow.} (27. Re5
Rbc8 28. Bxc8 {was my winning main line, but the engine's line is even stronger
})) 20. e5 {A decision I regret now. I had the feeling that this wasn't
leading to any advantage but with time running short I couldn't decide between
3 other options. I thus decided to keep some time advantage, take material and
play on the exposed Black king. What I wanted to do was to retreat the bishop
from e6 to either f5, g4 or h3. After that, White is threatening Qxb4, e5 and
even Qe6+. However I couldn't decide which one to play!} (20. Qxb4 {interested
me during the game but then I spotted Black's strong riposte.} Qd6 21. Rxc5
Qxc5 {White's back rank is vulnerable in many lines and this is one example of
this.}) (20. Bf5 {This was my least favourite option (funnily enough it's my
engine's favourite). 20.Bf5 defends e4 and also introduces the idea of Qe6+
and Bxh7 with a possible Qg8+ in the air, but I wasn't convinced about the
strength of the idea.} a5 21. Qe6+ Kf8 22. Bxh7 Qf7 {was my engine's #1 line
but doesn't look amazing for White to me: White will get a lot of pawns but
Black has the 2 bishops and a good spot for his knight.}) (20. Bh3 {This
defends g2 which means that White can play e5 without ever worrying about
Black counterplay with ...Qc6. However, the bishop is not very mobile on this
square and it also stops the White queen from transferring to the kingside via
h3.} Qc6 21. d5 Qd6 22. f4 Nxd5 {looked fine for Black to me as the bishop on
h3 stops the White queen from moving over to the kingside while White also
cannot fight for the a8-h1 diagonal with his bishop.}) (20. Bg4 {My favourite
idea.} Bc8 {A clever defence exploiting the undefended bishop on g4.} (20...
Qc6 {was the move I didn't like during the game but I had underestimated
White's key idea.} 21. d5 Qd6 22. f4 {I had not understood the strength of
this idea during the game.} Nxd5 23. Bf3 {is the difference with 20.Bh3.}) (
20... a5 21. e5 Bg5 22. Qe6+ Kf8 23. Qf5+ {is the nice extra result of moving
the bishop from e6: Black's bishop suddenly doesn't have many safe spots after
e5.}) (20... Nc6 21. e5) 21. Bf3 {Threatening e5 and Qxb4} (21. h3 {is an
engine suggestion which would not have occurred to me!} Bxg4 22. hxg4 Qc8 23.
Qg3 {intending to advance the kingside and central pawns en masse.}) 21... Bg5
22. Qxb4 Bxc1 23. Rxc1 cxb4 24. Rxc7+ Bd7 25. e5 {was my main line which I
hoped / assumed would be better for White.} Rdc8 {I'd missed this way of
challenging the rook on the 7th.} (25... Rac8 26. Rb7 Rb8 27. Ra7) 26. Rb7 Rcb8
{is equal according to my engine.}) (20. d5 {is an engine suggestion,
threatening Qxb4 and simply aiming to follow up with f4 and e5. It feels very
odd to give up the possibility of e5 so quickly.} Qe5 21. a5 Kf8 22. Qe3 Bc8
23. Bxc8 Raxc8 24. axb6 Qd6 25. Nf4 Bd4 26. Qf3 {is the engine's main line
which it asseses as slightly better for White. All feels a bit odd to me!})
20... Bxe5 21. dxe5 Qxe5 22. Bg4 (22. Re1 Nd3 {is Black's key defence but more
than enough!}) 22... Kf8 23. Qh3 Kg8 {Black's king has reached safety and the
position is balanced. I had intended to loosen up Black's kingside with 24.
Be6+ followed by Bf5 but again I took the practical decision to consolidate my
position rather than place my pieces on exposed squares. I felt that if I
managed to unravel and solve my back-rank problems then Black's queenside
pawns might become a target.} 24. Nc3 (24. Be6+ Kh8 25. Bf5 h6 26. Qg4 Nd5 {
followed by ...Nf6 looked perfectly defensible for Black.}) 24... Rxd1+ 25.
Rxd1 Re8 26. Be2 Bc8 (26... Nd5 {concerned me during the game, but it fails
tactically.} 27. Bc4 Kh8 28. Nxd5 Bxd5 29. f4 {wins!}) (26... Bd5 {followed by
...Bf7 was the best way of getting the bishop to the Black kingside which
looks pretty decent for Black.}) 27. Qg3 Qe7 28. h3 Be6 29. Rd6 {and my
opponent lost on time while making his move. However by this stage, White's
position is very good: the back-rank problems are solved while the Black
queenside is very vulnerable.} 1-0
[Event "London Classic Dinner"]
[Site "Simpsons"]
[Date "2018.12.18"]
[Round "?"]
[White "Grandmasters"]
[Black "RAC Table"]
[Result "0-1"]
[ECO "C24"]
[Annotator "https://matthewsadler.me.uk"]
[PlyCount "70"]
[EventDate "18.??.??"]
{[%evp 0,70,24,16,29,22,24,-13,1,-34,39,30,46,2,-4,-9,-5,-7,18,-2,52,45,63,45,
99,49,72,12,50,55,54,5,-5,9,9,5,5,12,34,-96,-107,-97,-97,-97,-81,-135,-123,
-153,-125,-173,-173,-191,-166,-158,-153,-158,-96,-64,-69,-69,-80,-166,-207,
-416,-467,-516,-484,-491,-491,-494,-514,-512,-512]} 1. e4 {Levon Aronian came
to our board and made the first move for the Grandmasters.} e5 2. Bc4 Nf6 3. d3
c6 4. Nf3 Be7 {At this point, Luke McShane was at our table. We sportingly
warned him that there was a tactic in the position!} 5. O-O (5. Nxe5 Qa5+ {
costs White a piece.}) 5... d6 6. c3 O-O 7. Re1 Nbd7 8. a4 Kh8 {The players
were coming along at short intervals during the opening phase which led to a
slight spot of panic on our table. Natasha was adamant that the plan of ...Kh8,
...Ng8 and ...f5 always worked and her conviction carried the rest of the
table!} 9. Ba2 {David Howell looked a little confused after 8...Kh8 and
responded by getting the bishop out of the range of the advance ...d6-d5.} Ng8
10. d4 {With the centre fluid, ...f5 was not looking particularly attractive
so it was time to apply the brakes.} Qc7 11. Na3 Ndf6 12. Ng5 {Luke Mcshane's
move - I wonder whether he had missed the cunning second point to 8...Kh8 and
9...Ng8!} Nh6 {The knight defends f7! Of course, if we hadn't played ...Kh8
and ...Ng8 in the first place, then f7 would have been defended already and ...
Nh6 wouldn't have been necessary!} 13. f4 {Fabiano Caruana's move. It looks
scary, but strangely enough - as often happens in simultaneous displays -
Black's strangely-placed pieces seem to be reasonably-placed to deal with it!}
Bg4 14. Qd3 {Levon Aronian's instant reply.} Nh5 {This move is awkward to deal
with: the combination of knight on g5, pawn on f4 and queen on d3 gives Black
the vital resource of ...Nf4 at crucial moments. Moreover, White's rook would
much rather be on f1 than e1 while White's queenside pieces are playing little
part in the struggle for now.} 15. h3 (15. f5 {is White's most desirable idea,
"punishing" Black for not breaking the wall of White pawns by capturing on f4
and trapping Black's light-squared bishop on g4. However, White's position is
quite shaky.} Nf4 16. Bxf4 exf4 17. h4 (17. Nf3 d5 {was the default idea
hitting at e4 and thus undermining White's support of f5. My engine thinks
that Black even has time to prepare it further with 17...Rad8.}) 17... d5 18.
exd5 Nxf5 {was the ambitious continuation I was examining while waiting for
the grandmasters to come around.} (18... Bxf5 19. Qf3 {looked less clear}) 19.
Nc4 (19. Re5 g6 20. Rf1 {was another idea that appealed to me: if Black's pawn
on f4 disappears, then a lot of the danger to White's king does too. However,
White's pieces are too exposed to be able to realise this tactically.} Nxh4 21.
Rxf4 Bf5 22. Qg3 Bxg5 23. Qxg5 f6 {wins}) 19... Bxg5 20. hxg5 f6 (20... Qd8 {
was another idea I had spotted, going after the g5-pawn after which Black
should develop some kingside play.} 21. dxc6 bxc6 (21... Qxg5 22. cxb7 Rab8 23.
Re5 {looked awkward with the threat of Nd6.}) 22. Ne5 Qxg5 23. Nxf7+ Rxf7 24.
Bxf7 Ng3 {is balanced according to my engine: Black's threat of ...Qh4-h1+-h4
will be be enough to keep Black afloat.} (24... f3 25. Qe4 {Threatening Qe8+} (
25. Re5 Rf8 (25... Bh5 26. Qc2 {is the clever idea}) 26. Rf1 {threatening Rxf3
was the correct defence I thought, but it seems wrong unfortunately!} g6 {
The power of this move escaped me completely.} 27. Be6 fxg2 {This simple idea
is awful for White.} 28. Rf2 Qc1+ 29. Kxg2 Nh4+ 30. Kg3 Qg1+) 25... h6 (25...
Rf8 26. Qe8) 26. Qxc6 {followed by Re8 is the brutal refutation!}) 25. Qa6 Qh6
26. Qxa7 Rg8 27. Bxg8 Qh1+ 28. Kf2 Qh6 29. Kg1 {is the engine repetition.}) 21.
gxf6 gxf6 {was my idea, followed by bringing the queen and rook to the g-file.
My engine is very positive too!}) (15. fxe5 dxe5 {followed by a move like} 16.
Nc4 {or 16.Rf1 or 16.h3 looked like sensible choices though it all looked
quite acceptable for Black. However, Gawain Jones had the difficult task of
making White's 15th move and he plumped for a risky idea.}) 15... Nxf4 16. Bxf4
exf4 17. Nxh7 {Hikaru Nakamura's hand hung in the air for a few seconds as he
played this move, hesitating between 17.Nxf7+ and 17.Nxh7. Eventually he went
for} Kxh7 18. hxg4 Bh4 {Strangely enough, Black's position is suddenly very
promising, based around a simple plan: ...Qe7, ...Bg3 and ...Qh4. Black can
also add extra firepower on the h-file with ...g6, ...Kg7 and ...Rh8 if
necessary. David Howell came around, looked slightly shocked at the mess that
had taken hold of the position and played more sharply still.} 19. Qh3 Bxe1 20.
Rxe1 Qe7 {This is the key move, preventing g4-g5. White finds it very hard to
create counterplay as 21.Qh5 can be met by 21...g6.} 21. Nc4 Rad8 22. Bb1 g6
23. e5 Kg7 {Preparing ....Rh8.} 24. g5 Qxg5 25. Nxd6 Rh8 26. Ne4 Qg4 27. Nd6
Qxh3 28. gxh3 f6 {Perhaps a little risky, but it worked out well!} 29. Nxb7 Rb8
30. Nd6 Rxb2 31. e6 f3 {Terry Chapman's suggestion, and a very strong move!}
32. Rf1 (32. e7 f2+) 32... Ng8 {The king's knight is the star again! This
wonderful suggestion from our table prevents e6-e7 and threatens 33...Rg2+ 34.
Kh1 Rxh3+ mate!} 33. Bf5 {Desperation} (33. Rxf3 Rxb1+) 33... Ne7 34. Rxf3 (34.
Bg4 Rg2+ 35. Kh1 Rxg4 {is a typical trick}) 34... Nxf5 35. Nxf5+ gxf5 0-1
[Event "Paris"]
[Site "Paris"]
[Date "1900.05.28"]
[Round "6"]
[White "Marshall, Frank James"]
[Black "Lasker, Emanuel"]
[Result "1-0"]
[ECO "D50"]
[Annotator "https://matthewsadler.me.uk"]
[PlyCount "115"]
[EventDate "1900.??.??"]
[EventType "tourn"]
[EventRounds "16"]
[EventCountry "FRA"]
[Source "ChessBase"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[%evp 0,115,19,31,19,-16,-9,-1,1,-40,15,-3,4,11,-4,-11,2,-14,9,9,28,42,42,-4,
48,44,44,18,28,107,116,54,36,-52,130,121,138,138,151,159,157,160,160,147,169,
173,182,158,233,235,230,89,105,100,109,93,115,110,184,116,122,46,106,86,88,89,
92,105,121,123,131,139,122,56,111,76,82,114,116,108,140,141,154,162,205,207,
211,240,251,236,256,270,278,230,223,239,225,171,182,191,182,159,162,177,177,
203,232,232,251,251,292,292,317,373,392,399,443,443]} 1. d4 d5 2. c4 e6 3. Nc3
Nf6 (3... c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 {was Marshall's first go at this
line, before he developed the sharp pawn sacrifice with 6.Bd2 that bears his
name and is still a hot topic of theoretical discussion.} (6. Bd2 Qxd4 7. Bxb4
Qxe4+ 8. Be2 Na6 (8... Nd7 9. Nf3 c5 10. Bc3 Ngf6 11. Qd6 Qc6 12. Qg3 O-O 13.
Rd1 Nh5 14. Qh4 g6 15. Rxd7 Qxd7 16. g4 {Powerful chess! Strangely enough,
this game doesn't even make it into Marshall's Best Games!} Qd8 17. gxh5 Qxh4
18. Nxh4 e5 19. hxg6 hxg6 20. Rg1 Re8 21. Nf3 f6 22. Rxg6+ Kf7 23. Rg3 Bd7 24.
Nd2 Rh8 25. Ne4 b6 26. Rf3 f5 27. Bxe5 Rh4 28. Nd6+ {1-0 (28) Marshall,
F-Schlechter,C Monte Carlo 1902}) 9. Bc3 (9. Ba5 {forcing a weakening of
Black's pawn structure with 9...b6 before returning to c3 is the modern
treatment of this line.}) 9... Ne7 10. Nf3 O-O 11. O-O f6 12. Re1 e5 13. Bd3
Qg4 14. Re4 Qe6 15. b4 Qf7 16. Nh4 g5 17. Nf3 Bf5 18. Re3 Rad8 {went somewhat
less well for White although Marshall managed to trun the game around and win
in 65 moves. 1-0 (65) Marshall,F-Schrader,E Saint Louis 1904}) 6... c5 7. a3
Ba5 8. Nf3 cxd4 9. Qxd4 Qxd4 10. Nxd4 Bxc3+ 11. bxc3 a6 12. Bf4 f6 13. Bd6 e5
14. Nc2 Ne7 15. Ne3 Nbc6 16. Nd5 Nxd5 17. cxd5 Ne7 18. c4 Bf5 19. Be2 Kd7 20.
Bb4 a5 21. Bxe7 Kxe7 22. O-O b6 23. f4 exf4 24. Rxf4 Bg6 25. Ra2 Kd6 26. Rb2
Rab8 27. Rf3 Bh5 28. Rfb3 Bxe2 29. Rxe2 Kc5 30. Re4 Rhd8 31. Rb5+ Kd6 32. Re6+
Kc7 33. Rc6+ {1-0 (33) Marshall,F-Teichmann,R London 1902}) 4. Bg5 c6 5. e4 {
A little-played move, leading to a position reminiscent of the variation 1.d4
d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Nc3 which Marshall also played.
Teichmann was not too impressed with his idea stating in his annotations for
the British Chess Magazine that "it is doubtful whether this early advance of
the King's Pawn to the fourth is good; and I think that the continuation
adopted by Dr Lasker ought to have given him a good game". Marshall confessed
a fondness for this move in "Marshall's Best Games of Chess" but "eventually I
discarded it as it cannot lead to a permanent inititaive".} dxe4 6. Nxe4 Bb4+
7. Nc3 c5 8. a3 Bxc3+ 9. bxc3 Qa5 10. Bd2 Ne4 11. Nf3 {A novelty from Marshall!
} (11. Qc2 {was a little slow and gave Black a good game after} Nxd2 12. Qxd2
O-O 13. Nf3 Rd8 14. Be2 Nc6 15. Rd1 Qxa3 16. O-O {1/2-1/2 (86) Metger,
J-Charousek,R Berlin 1897}) 11... Nxc3 {Very risky from Lasker.} (11... O-O 12.
Bd3 Nxd2 13. Qxd2 Nc6 {was best with a balanced and interesting game.}) 12.
dxc5 (12. Qb3 cxd4 13. Nxd4 Qe5+ {is Black's main defensive point although my
engine still prefers White after} 14. Be3 Ne4 15. Qb5+ Qxb5 16. Nxb5 Na6 17. f3
Nf6 18. Nxa7 {Marshall's choice is the most ambitious attempt to punish
Black's opening play.}) 12... Nxd1 13. Bxa5 Nb2 14. a4 {The sharpest attempt,
blocking the retreat path of the knight on b2 back to a4 and preparing Bc3 or
Ra2 winning the knight.} Bd7 15. c6 {A neat intermezzo which is the only way
to set Black any problems. Black must capture on c6 with the bishop to keep up
the threat of ...Nxa4, but this removes his ability to meet Ne5 or Nd4 with ...
Nc6.} (15. Ne5 Nc6 16. Nxd7 Nxa5 {is Black's key resource when} 17. Ne5 Rc8 {
ensures the survival of the knight on b2}) 15... Bxc6 16. Ne5 {Tricky but not
the most accurate I thought, and my engine agrees with me.} (16. Nd4 {is a
cleverer way to play, avoiding the tempo with ...Nd7.} Be4 (16... b6 17. Bd2 (
17. Bb4 {is the engine suggestion and may be even a little stronger despite
the possibility of tempo gains on the bishop with ...Na6 or ...Nc6 which put
me off, as Black is now no longer able to castle kingside.}) 17... Be4 18. Nb5
{is the key idea, threatening both Nc7+ and Nd6+} (18. Ra3 {was my first
thought but it isn't that good!} Nc6 19. Bc3 Rd8 (19... Nd1 {was an
alternative thought of mine, but I just felt I was sending my knight into even
more perilous adventures after} 20. Nxc6 Nxc3 21. Ne5 Nb1) 20. Nxc6 Rd1+ 21.
Ke2 Bd3+ 22. Kf3 Nxc4 23. Ra1 {Unfortunately I made a tactical error here
missign White's cunning point} (23. Bxd3 Rxd3+ 24. Ke2 Rd6 25. Nxa7 {The
tactical reason why Black plays 19...Rd8 rather than 19...0-0-0. Nxa7 is not
check!} Nxa3 26. Bb4 Rd4 27. Bxa3 Rxa4 28. Nb5 Kd7 {was my line with a
pleasant position for Black.}) 23... Nd2+ (23... Rxa1 24. Bxa1 Bxf1 {was my
idea, but there is a sting in the tail!} 25. Bc3 (25. Rxf1 Nd2+ {looked fine
for Black.}) 25... Bd3 26. Rd1 {is terminal as} Bg6 {allows} 27. Rd8#) 24. Bxd2
Rxa1 25. Bxd3 Rxh1 26. Nxa7 f6 {is a crazy endgame, but probably about
balanced as Black should be able to give up a rook for minor piece and a-pawn.}
) 18... Kd7 19. Bc3 a6 20. Bxg7 Rg8 21. Bxb2 axb5 22. f3 Bg6 23. axb5 {is a
clear pawn for White.}) 17. Nb5 O-O (17... Nc6 18. Bc3 Nd3+ 19. Bxd3 Bxd3 20.
Nc7+ Ke7 21. Nxa8 Rxa8 22. c5 {was my main line with a pleasant advantage for
White, though there is still some work to do to convert it into a win.}) 18.
Bc3 Nd3+ 19. Bxd3 Bxd3 20. Nc7 Na6 21. Nxa8 Rxa8 22. Rc1 f6 {is the engine
main line and may be a cleverer way to play this line, although White has a
very pleasant advantage in both cases,}) 16... Be4 (16... Nd7 {Pointed out by
Teichmann and Marshall} 17. Nxc6 bxc6 {manages to keep the knight safe by
forcing the opening of the b-file. The crux is a rather undeserved tactic!} 18.
Bc3 (18. Kd2 Nc5 19. Kc2 Nbxa4 20. Be2 O-O 21. Ra2 {gives White sufficient
compesnation for the two pawns but no more than that.}) 18... Rb8 19. Bxg7 (19.
Ra2 Nxc4 20. Bxc4 Rb1+ {wins! That feels unfair!}) 19... Rg8 20. Bd4 {The
position is still quite complicated but Black's lead in development and
White's queenside pawn weaknesses should give Black safe passage to equality.
Marshall gives a follow-up which doesn't entirely meet with engine approval!}
e5 21. Bc3 Nc5 22. a5 f6 {and as Marshall states "the position of the advanced
knight would then be safe but awkward"}) (16... b6 17. Bd2 {followed by Bc1 or
Ra2 wins}) 17. Bc3 {A mistake which gives Black a way of escaping which I
found, but had real trouble believing!} (17. Ra2 {is the best way to attack
the knight on b2.} f6 18. f3 Bf5 19. g4 {is the key idea as the ...Bc2 idea in
the game fails simply to Rxb2.}) (17. f3 f6 {is given by Marshall as the move
order played, but that is hard to believe: simply} 18. fxe4 fxe5 19. Bc3 {
wins easily}) 17... f6 18. f3 Bc2 (18... Bf5 {is the key idea to force White
to take away the g4 square from his own knight after which the knight on e5
has no good retreat square!} 19. g4 Bc2 20. Kd2 Nd1 {Amazing but true!} 21.
Kxc2 Ne3+ 22. Kd3 (22. Kb3 fxe5 (22... Nxf1 23. Nd3 Ne3 24. Ra2 {shows a
disadvantage to forcing g4: the knight is trapped on e3!})) 22... Nxf1 {
was my variation, when the knight on f1 is trapped...but then so is the knight
on e5! White is still better of course, but it's better than lost!}) 19. Kd2
Nxa4 20. Kxc2 Nxc3 21. Nd3 Nd5 22. cxd5 exd5 23. Nc5 b6 24. Bb5+ Kf7 25. Na4
Nc6 26. Nc3 Rhc8 27. Rhd1 Ne7 28. Kb2 Rc7 29. Bd3 (29. Nxd5 Rc5 {is given by
Marshall but simply} 30. Nc3 {is fine for White.}) 29... a5 30. Na4 Rc6 31.
Rac1 Rb8 32. Rxc6 Nxc6 33. Rc1 Ne5 34. Rc7+ Ke6 35. Bb5 g5 36. Ra7 d4 37. Ra6
Kd5 38. Kc2 Rb7 39. Ra8 Nc6 40. Kd2 Nb4 41. Rd8+ Ke5 42. Nb2 Rc7 43. Nc4+ Kf5
44. Rxd4 Rc5 45. Be8 Rd5 46. Ne3+ Ke5 47. Nxd5 Kxd4 48. Nxb4 axb4 49. Bf7 f5
50. Bg8 h5 51. Bf7 h4 52. h3 b5 53. Be8 Kc4 54. Bd7 b3 55. Bxf5 Kb4 56. Bd3 b2
57. Kc2 Ka3 58. Kb1 1-0
[Event "Match Marshall-Lasker,Em +1-0=1"]
[Site "New York"]
[Date "1940.05.18"]
[Round "?"]
[White "Marshall, Frank James"]
[Black "Lasker, Emanuel"]
[Result "1-0"]
[ECO "D62"]
[Annotator "https://matthewsadler.me.uk"]
[PlyCount "67"]
[EventDate "1940.05.18"]
[EventType "match"]
[EventRounds "2"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[%evp 0,34,25,-24,9,-9,5,6,6,6,36,9,19,28,43,21,48,41,26,19,19,31,31,26,26,26,
33,15,26,28,47,46,35,22,30,14,21]} 1. c4 {"We contested the following game at
the Astor, in the playing enclosure in which the US Championship was taking
place. I am sure that that gallant warrior must have shared my feelings, as I
looked at today's youthful stars - Reshevsky, Fine and all the others, and
thought of all the old tournaments in which we had had so many stirring
encounters, and all our famous rivals: Pillsbury, Tarrasch, Janowsky and so
many others... they are only memories now"} e6 2. Nf3 Nf6 3. Nc3 d5 4. d4 Nbd7
5. Bg5 Be7 6. e3 O-O 7. Qc2 c5 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Bd3
g6 12. dxc5 Nxc5 13. O-O b6 14. Rac1 a5 {Not the most common plan, but a
sensible approach: the knight on c5 blocks White's play until Black is ready
to challenge for the c-file while the queenside pawns are well-placed on the
opposite colour to the light-squared bishop (following Capablanca's famous
maxim). As Marshall points out, Black also has the threat of 15...Nxd3
followed by ...Ba6 netting the exchange.} 15. Rfd1 Bb7 16. Nd4 Rfc8 17. Qe2 Qf6
18. h3 Rc7 19. Rc3 Rac8 20. Rdc1 Qe5 21. a3 {Hinting at b4, driving away the
knight from c5.} a4 {Strangely enough a serious error. The crux of Black's
play has been to maintain the knight on c5 for long enough to be able to
neutralise White's play with exchanges on the c-file. 21...Ne6 would be
completely acceptable for Black. As long as Black's queenside pawns are on
dark squares, then White will struggle to make anything of the resulting IQP
ending, even with a good bishop against a bad bishop. By playing 21...a4,
Black roots the knight to c5 and commits Black to never play any ending due to
the enormous target of the pawn on a4. Even worse, there are some immediate
tactical opportunities.} 22. Bb5 {intending Qd1 or Qc2, targeting the a4-pawn.}
Ra8 {This incautious move gives White an unexpected opportunity to immediately
exploit the new weakness.} (22... Nb3 23. Rxc7 Rxc7 24. Rxc7 Nxd4 25. exd4 Qxc7
26. Qd2 (26. Bxa4 Qc1+ 27. Bd1 {This was Marshall's line} Ba6 28. Qc2 Qf4 29.
Qc3 {is also fine, but the text is safer.})) 23. Bxa4 Rxa4 24. b4 {This tactic
is much more fraught than it looks at first sight: White is not yet
threatening to capture the knight on c5 due to ...Rxd4, so White will require
an unpinning move. The plus side is that White has quite a few of them: Qb5,
Qc2, Qd1 and Qb2 and these all introduce subsidiary threats that are hard to
cope with.} Qe8 (24... Nb3 25. Rxc7 Nxc1 (25... Nxd4 26. Qd1 {was Marshall's
line}) 26. Qc2 {also mentioned by Marshall, though there are still a few more
tricks left in the position.} Rxa3 (26... Ba6 27. Qxc1 Bc4 28. Rc8+) 27. Rxb7
Ra1 (27... Ne2+ 28. Nxe2 Ra1+ 29. Nc1) 28. Qc8+ Kg7 29. Ne6+ Kh6 (29... Kf6 30.
Qh8+ Kxe6 31. Re7+) 30. Qf8+ Kh5 31. g4+ Kh4 32. Qh6+) (24... Ne6 25. Rxc7 Nxc7
(25... Nxd4 26. Qd1 {hits everything!}) 26. Qc2 Rxa3 27. Qxc7 Qxc7 28. Rxc7 {
and the light-squared bishop will never escape its box!}) (24... Rc8 25. Qb5 (
25. bxc5 Rxd4 26. c6 Rxc6 (26... Ba8 27. Qa6) 27. Rxc6 Bxc6 28. Rxc6 Rc4 29.
Rxc4 dxc4 30. Qxc4 Qa1+ {secures equality for Black.}) 25... Qe8 (25... Ba6 26.
Qxb6) 26. Qxe8+ Rxe8 27. bxc5 bxc5 28. Rxc5 Rxa3 29. Rc7 Ba6 30. Ra7 {is awful
for Black.}) 25. Qc2 {A poor move, throwing away most of White's advantage
though Marshall makes no comment about it.} (25. bxc5 Rxd4) (25. Qb2 {with an
X-Ray attack on the bishop on b7.} Qe7 26. bxc5 bxc5 27. Qb5 Rc4 28. Rxc4 dxc4
29. Qxc4 (29. Ne2 {is another engine suggestion, to meet} Qg5 {with} 30. Nf4)
29... Qg5 {rather worried me.} 30. Qf1 {The engine defence which I had missed.
However, it all looks a bit uncomfortable for White.} (30. g3 cxd4 31. Qxc7 Qd5
32. f3 Qxf3 33. Qb8+ Kg7 34. Qe5+ Kg8 {seemed drawn to me, and the engine
agrees.})) (25. Qd1 Qd7 26. bxc5 bxc5 27. Rxc5 Rxc5 28. Rxc5 Rxa3 29. Qc1 {
looks simple and very unpleasant for Black again (just like 25.Qb5). Black is
bound to lose the f-pawn somehow and end up in a cheerless endgame.}) (25. Qb5
{My favourite idea} Qxb5 26. Nxb5 Rd7 (26... Rc8 27. Nd6) 27. bxc5 bxc5 28.
Rxc5 Ba6 (28... Ra5 29. R1c3) 29. Nc3 Rxa3 30. Nxd5 {is a clear advantage for
White: Black will struggle to draw.}) 25... Re7 {A complete blunder: it's hard
to understand what Lasker missed.} (25... Ra8 {is much stronger.} 26. Qb1 (26.
bxc5 bxc5 {Threatening to consolidate with ...c5-c4.} 27. Rxc5 Rxc5 28. Qxc5
Rc8 {is the point, picking up the rook on c1.}) 26... Qe7 {holds everything
for Black.}) 26. bxc5 bxc5 27. Rxc5 Rxe3 (27... Rxa3 28. Qb2 Qa4 (28... Ra8 29.
Nb5 {Marshall "with a winning game" which is a little over the top, though
Black stands very unpleasantly}) 29. Rc8+ Bxc8 30. Rxc8+ Kg7 31. Nf5# {is
Marshall's gallery-finish line!}) 28. fxe3 Qxe3+ 29. Qf2 Qxd4 30. Qxd4 Rxd4 31.
Ra5 Rc4 32. Rxc4 dxc4 33. Rc5 Ba6 34. a4 1-0
[Event "World-ch07 Lasker-Marshall +8-0=7"]
[Site "USA (5 cities)"]
[Date "1907.01.29"]
[Round "2"]
[White "Lasker, Emanuel"]
[Black "Marshall, Frank James"]
[Result "1-0"]
[ECO "C11"]
[Annotator "https://matthewsadler.me.uk"]
[PlyCount "103"]
[EventDate "1907.01.26"]
[EventType "match"]
[EventRounds "15"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[%evp 0,103,19,31,41,46,51,30,49,-4,20,-1,-1,-32,-21,-21,-37,-65,-70,-70,5,10,
4,11,34,9,-6,-17,3,-6,11,-16,14,20,-1,2,53,36,50,46,57,68,89,120,122,122,113,
106,165,141,155,156,156,122,122,122,194,115,110,122,140,143,136,98,194,201,207,
203,209,190,192,187,176,175,192,209,208,181,193,185,225,222,223,222,222,169,
219,217,220,220,269,275,289,273,292,346,346,373,373,386,456,471,621,811,1009,
425]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bd3 c5 5. exd5 cxd4 6. Bb5+ Bd7 7. Bxd7+
(7. dxe6 Bxb5 {wins a piece}) 7... Qxd7 8. dxe6 Qxe6+ (8... fxe6 9. Nce2 Nc6
10. Nf3 e5 {is also pretty nice for Black. Also during World Championship
matches in the 1900s, White had problems equalising!}) 9. Nce2 Nc6 10. Nf3 Bb4+
11. Bd2 O-O-O 12. O-O Rhe8 13. Nf4 Qg4 {A strange move giving White the extra
tempo h3. Possibly Marshall was looking to create a weakness to be exploited
by ...g5-g4? Or was he thinking of installing a knight on e4 and wanted to
make f2-f3 more difficult...?} 14. h3 Qf5 15. Nd3 Bxd2 (15... Bd6 {looks very
tempting followed by ...Ne4 and ...g5-g4}) 16. Qxd2 Ne4 17. Qf4 Qd5 18. Qg4+ {
Computer chess from Lasker! I'm not sure I'd ever think of grabbing that pawn
on g7! It seems to be sound though, and in fact Marshall needs to be very
precise to prove compensation for the pawn. However, it is very fraught for
White too!} f5 19. Qxg7 Rg8 (19... Nd2 {was my #1 line, and it does indeed
seem to be Black's best.} 20. Nxd2 Rg8 21. Nf4 Qd6 22. Qf7 (22. Qxh7 Qxf4 23.
Rad1 Qg5 24. g3 Rd7 {trapping the queen!} 25. h4 Qg4 26. Qh6 f4 {is very
dangerous for White} 27. Kg2 Ne7 {The engine move, with the threat of ...Nf5
or ...Ng6}) (22. Nc4 Qxf4 23. Qf6 Rxg2+ 24. Kxg2 Rg8+ {wins}) 22... Qxf4 23.
Rad1 (23. Nc4 b5 {is very awkward!} (23... Qf3 24. Nd6+ {was White's trick!}))
23... Rg6 24. g3 {is the engine move, threatening Qxg6 and forcing Black to
take the draw by perpetual} (24. Rfe1 Ne5 25. Qe7 Rdg8 26. Qc5+ (26. Qxe5 Rxg2+
27. Kf1) 26... Nc6 27. Qd5 Rxg2+ 28. Qxg2 Rxg2+ 29. Kxg2 {I wasn't 100% sure
how good this was for Black, but my engine has no doubts!} Ne5 30. Re2 Qh6 {
is very strong with the idea of ...Ng6-f4+!} 31. Rxe5 Qg7+) 24... Rxg3+ (24...
Rdg8 25. Kh1 Qg5 26. Rfe1) 25. fxg3 Qxg3+ 26. Kh1 Qxh3+ 27. Kg1 Qg3+) 20. Qh6 (
20. Qxh7 Nf6) 20... Nd2 (20... Rd6 {I thought this would still be good for
Black.} 21. Qf4 (21. Qxh7 Nf6) (21. Qh5 Nf6) (21. Qh4 Nd2) (21. Qc1 Rdg6 22.
Nf4 (22. Nh4 Rxg2+ 23. Nxg2 Nc3 24. Ndf4 Rxg2+ 25. Kh1 (25. Nxg2 Ne2+) 25...
Qf3 26. Nxg2 Qxh3+ 27. Kg1 Ne2#) 22... Rxg2+ 23. Kh1 (23. Nxg2 Nd2 24. Nfe1
Nf3+ 25. Kh1 Nxe1) 23... Ne5 {I was so pleased to spot this one!} 24. Nxd5 (24.
Nxg2 Nxf3 25. Qf4 Ned2 {is crushing}) (24. Nxe5 Nxf2+ 25. Rxf2 Rg1+ 26. Kh2
Qh1#) 24... Nxf3 25. Qf4 Rg1+ 26. Rxg1 Nxf2#) 21... Rdg6 (21... Nd2 22. Qxd2
Qxf3 23. g3 {is an extra tempo for Black compared to the game, but still not
easy to find a way through.} Rdg6 24. Nf4 {and there is not even a perpetual})
22. Nh4 (22. g3 Nxg3 23. fxg3 Rxg3+ 24. Kh2 (24. Kf2 Rg2+ 25. Ke1 Qe4+ 26. Qxe4
(26. Kd1 Qe2+) 26... fxe4 {is good for Black}) 24... Rg2+ 25. Kh1 R2g3 {
with a draw by perpetual was my main line.}) 22... Nc3 {In my enthusiasm, I
had unfortunately overlooked White's simple counter} 23. Qxf5+ Qxf5 24. Nxf5
Rxg2+ 25. Kh1 R2g5 26. Rg1 {and White is a pawn up in the endgame...}) 21. Qxd2
Qxf3 22. g3 h5 23. Qf4 {This is a cheerless position for Black: a pawn down
and clear pawn weaknesses everywhere. Marshall was heading for a 0-2 start to
the match.} Qd5 24. Rfe1 Rde8 25. Rxe8+ Rxe8 26. Re1 Re4 27. Qg5 Nb4 28. Rxe4
fxe4 29. Qxd5 Nxd5 30. Nc5 e3 31. Nd3 h4 32. gxh4 Kd7 33. Kf1 Ke6 34. Ke2 exf2
35. Kxf2 Kf5 36. Kf3 Nf6 37. Nc5 b6 38. Nd3 Nh5 39. Nc1 Nf6 40. Ne2 Ke5 41. Ng3
Nd5 42. h5 Ne3 43. h6 Kf6 44. c3 Nd1 45. cxd4 Nxb2 46. Nf5 Kg6 47. d5 Nc4 48.
Ke4 Na5 49. d6 Nb7 50. Kd5 Nd8 51. d7 a5 52. Ne7+ 1-0
[Event "World-ch07 Lasker-Marshall +8-0=7"]
[Site "USA (5 cities)"]
[Date "1907.02.16"]
[Round "7"]
[White "Marshall, Frank James"]
[Black "Lasker, Emanuel"]
[Result "1/2-1/2"]
[ECO "D32"]
[Annotator "https://matthewsadler.me.uk"]
[PlyCount "97"]
[EventDate "1907.01.26"]
[EventType "match"]
[EventRounds "15"]
[EventCountry "USA"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[%evp 0,97,61,28,27,-16,-21,-4,30,21,21,35,30,7,14,22,22,-62,40,30,30,33,32,
23,20,13,31,23,77,40,71,46,59,58,69,55,75,72,76,78,113,95,129,71,113,109,104,
125,87,67,61,78,85,88,88,87,93,81,81,81,81,81,81,89,112,94,117,53,62,48,33,1,0,
-6,-9,-55,-50,-30,0,-1,0,-61,-31,-35,0,-72,-70,-77,-67,-65,-64,-65,-40,-33,0,0,
-4,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 (5... Nf6 6. Bg5
Be6 7. e4 {shows that the idea of e4 in such positions was well-known to
Marshall already!} cxd4 8. Bb5+ Nbd7 9. Nxd4 Bb4 10. e5 h6 11. exf6 Bxc3+ 12.
bxc3 hxg5 13. Nxe6 fxe6 14. fxg7 Rg8 15. Qh5+ Ke7 16. Qxg5+ Kf7 17. Qh5+ Ke7
18. O-O Rxg7 19. Rfe1 Nf6 20. Qh3 Qd6 21. Bd3 Rag8 22. g3 Ng4 23. Bf5 Ne5 24.
Bxe6 Rf8 25. Qh4+ Rf6 26. Bxd5 Qxd5 27. Qd4 Ke6 28. Rad1 {1-0 (28) Marshall,
F-Cohn,E Nuremberg 1906}) (5... cxd4 {A surprising choice from Lasker,
presumably played to avoid a repeat of Marshall's 5...Nc6 6.Bg5 that had
caused Lasker such problems in his previous Black game. Marshall calls this
move "old-fashioned even for those days" in his annotations to his game
against Mieses played 1 year later! (see below). He doesn't even mention his
previous game against Lasker!} 6. Qxd4 (6. Nxd4 {was Marshall's sensible and
more standard choice in a 1908 game against Mieses, avoiding the immediate
conflict that occurs in this game. Compared to the main lines of the Tarrasch,
Black has taken very early on d4 which should benefit White through some
additional development options.} Nc6 {Again forestalling Bg5, this time by
avoiding committing the knight to f6.} 7. Bf4 (7. e4 dxe4 8. Bb5 {might also
be promising: it looks more disruptive than the same idea in the game after 6.
Qxd4.}) 7... Bb4 8. e3 (8. Ndb5 d4 9. a3 Ba5 10. b4 {is the engine
recommendation, already with a clear advantage!}) 8... Nge7 9. Rc1 O-O 10. Be2
Bd6 11. Bg3 Nxd4 12. Qxd4 b6 13. Bd3 Bb7 14. Bxd6 Qxd6 15. O-O Rfc8 16. Nb5 Qd7
17. Rxc8+ Bxc8 18. Rc1 Nc6 19. Qh4 g6 20. Qf6 Nb4 21. Rc7 Qe6 22. Qd8+ Kg7 23.
Nd6 Bb7 24. Nxf7 {1-0 (24) Marshall,F-Mieses,J Berlin 1908}) 6... Nf6 7. e4 {
Marshall tries to exploit Lasker's unusual move order by forcing means.
However, this leads to a simplified position in which Marshall's advantage is
purely symbolic.} (7. Bg5 Be7 (7... Nc6 8. Bxf6) 8. e3 Nc6 {is a standard IQP
position with just the slight drawback for White of an exposed queen on d4. It
should still be an edge for White however.}) 7... Nc6 8. Bb5 dxe4 9. Bxc6+ {
There is always time to capture the knight later, so it is feels worth keeping
White's options open by leaving the bishop on the board for now.} (9. Qxd8+
Kxd8 10. Ng5 Be6 11. O-O {felt more challenging.} Bb4 {Continuing as Lasker
did in the game.} 12. Ncxe4 Nxe4 13. Nxe4 Ke7 14. Be3 {Preventing Black's key
defensive idea of ...Nd4 and threatening a3, embarrassing the bishop on b4: if
it leaves the a3-f8 diagonal, then Black's king is vulnerable to a check from
c5. I was somewhat hopeful of developing an initiative in this way, but was
unable to break the following concrete defence... and nor was my engine when I
checked my analysis with it.} (14. a3 Nd4) 14... Rhd8 {Supporting the ...Nd4
defence anew.} 15. a3 (15. Bxc6 bxc6 16. a3 Ba5 (16... Bd6 17. Nxd6 Kxd6 {
should also be fine for Black.}) 17. Bc5+ Kd7 {it looks a little uncomfortable
for Black, but there doesn't seem to be any way for White to extract a lasting
advantage.}) 15... Nd4 {A much-needed resource} (15... Bd6 16. Rfd1 Be5 17.
Bc5+ Ke8 18. Bd6 {is the type of edge that White is aiming for:} Bxb2 19. Rab1
{is catastrophic for Black.}) 16. Ba6 (16. axb4 Nxb5 17. Bc5+ Ke8 {is fine for
Black as the knight on b5 covers d6.}) (16. Ba4 Ba5 {aiming to complete
Black's defensive structure with ...Bb6.} 17. Nc5 Bb6 (17... b5 18. Nxe6 Kxe6 (
18... fxe6 19. Bg5+) 19. Bxd4 (19. Bd1 Rac8) 19... Rxd4 20. Bxb5 Rb8 21. a4 a6
{is also fine for Black.}) 18. Nxb7 Rdb8 19. Bxd4 Bxd4 20. Bc6 Bxb2 21. Rad1 {
and now the nice engine move} (21. Rab1 Bxa3) 21... Rg8 {avoids any discovered
attack tricks!}) 16... bxa6 17. axb4 {was a nice idea of mine, but it again
doesn't promise much after} Kf8 {White has any edge that is going, but this
seems a pretty acceptable result with the Black pieces in a World Championship
match!}) 9... bxc6 10. Qxd8+ Kxd8 11. Ng5 Be6 12. O-O (12. Nxe6+ fxe6 13. Bg5
Bb4 14. O-O-O+ Kc7 15. Bxf6 gxf6 16. Nxe4 {followed by bringing the knight to
c4 might be a small edge for White, though Black should not have any problems.}
) 12... Bb4 13. Ncxe4 Nxe4 14. Nxe4 Bd5 {and Lasker had no difficulties: in
fact he was a little on top for the rest of the game.} 15. Bd2 Rb8 16. Rad1 Kc8
17. Nc3 Bc4 18. Rfe1 Rd8 19. Bf4 Rb7 20. Rxd8+ Kxd8 21. Rd1+ Rd7 22. Rxd7+ Kxd7
23. a3 Bd6 24. Be3 a6 25. Bd4 f6 26. Ne4 Bc7 27. f3 Ke6 28. Kf2 Kd5 29. Be3 Be5
30. Nc3+ Ke6 31. Na4 h5 32. b3 Bd5 33. Nc5+ Kf5 34. Nxa6 Bxb3 35. Nc5 Bc4 36.
a4 Bxh2 37. g3 h4 38. Bf4 g5 39. Kg2 Bxg3 40. Bxg3 hxg3 41. Kxg3 Ke5 42. a5 f5
43. a6 Bxa6 44. Nxa6 Kd4 45. Nc7 Ke5 46. f4+ {1/2-1/2 (46) Marshall,F-Lasker,E
USA (5 cities) 1907}) 6. Bg5 {This idea originated with Marshall in 1905, and
he played it regularly until 1910 when he took up Rubinstein's 6.g3. He scored
excellently with 6.Bg5, winning eight, drawing nine and losing just one. I
first came across this line in Ray Keene's excellent "An Opening Repertoire
for White" which quoted many of Marshall's games. It's an attractive line for
White as there are few ways for Black to avoid the basic structure that White
is aiming for. By exchanging off the dark-squared bishops, White removes the
major source of attacking counterplay for Black, leaving Black with only the
disadvantages of the IQP. Black's position is solid enough, but rather
uninspiring to play. Marshall has this to say about 6.Bg5 in his notes to his
game against Spielmann: "For some time this was my favourite line of play
against the Tarrasch Defence; but later I switched to the more effective
Schelechter-Rubinstein move 6.g3 after it had been introduced into master play
in 1908."} (6. g3 {After this move, Marshall frequently played the Black side
of a sideline which Alexey Bezgodov in his excellent book on the Tarrasch
calls the "Keres variation" but which perhaps could better be ascribed to
Marshall!} Nf6 7. Bg2 cxd4 8. Nxd4 Bc5 9. Nb3 (9. Nxc6 bxc6 10. O-O O-O 11. Bg5
h6 12. Bxf6 Qxf6 13. Nxd5 cxd5 14. Qxd5 Bxf2+ 15. Rxf2 Qxb2 16. Rxf7 Qb6+ 17.
Kh1 Be6 18. Rb7 Bxd5 19. Bxd5+ Kh7 20. Rxb6 axb6 21. Be4+ g6 22. Bxa8 Rxa8 23.
Kg2 b5 24. Kf3 b4 25. Rb1 Rxa2 26. Rxb4 Ra7 27. e4 Kg7 28. e5 Kf7 29. Ke4 Ra6
30. h4 Ke6 31. g4 Rc6 32. Ra4 Rb6 33. Kd4 Rc6 34. Ra8 Rb6 35. Re8+ Kf7 36. Rc8
Ke6 37. Rc4 Ra6 38. Rb4 Rc6 39. Ra4 Rb6 40. Rc4 Ra6 41. Ke4 Rb6 42. Rd4 Ra6 43.
Kf4 Ra1 44. Rd6+ Kf7 45. Rf6+ Kg7 46. Kf3 h5 {1/2-1/2 (46) Marshall,F-Duras,O
Budapest 1912}) 9... Bb4 10. O-O Bxc3 11. bxc3 O-O {saw Marshall on the wrong
end of a magnificent positional effort from the great Akiba Rubinstein.} 12.
Bg5 Be6 13. Nc5 Qe7 (13... Rc8 {is Bezgodov's suggested improvement, although
his main line still looks pretty pleasant for White:} 14. Nxb7 Qe7 15. Rb1 Rc7
16. Qa4 Rxb7 17. Bxf6 gxf6 18. Qxc6 Rc7 {when Black regains the pawn on c3,
but will be fighting at best for a draw due to his pawn weaknesses.}) 14. Nxe6
fxe6 15. c4 dxc4 16. Bxc6 bxc6 17. Qd4 Qd8 18. Bxf6 Rxf6 19. Qxc4 Qd5 20. Rac1
Raf8 21. e4 Qh5 22. f4 Qa5 23. e5 Rh6 24. Rc2 Qb6+ 25. Kg2 Rd8 26. Rff2 Rc8 27.
Rfd2 Kh8 28. Rd6 Qb1 29. Rxc6 Rg8 30. Rc8 Qb7+ 31. Kg1 Qb6+ 32. Qc5 Qxc5+ 33.
R2xc5 g5 34. Rxg8+ Kxg8 35. fxg5 Rh5 36. h4 h6 37. gxh6 Rxh6 38. Rc8+ Kg7 39.
Rc7+ Kg6 40. Rxa7 Kf5 41. Ra5 Rh8 42. Kg2 Rb8 43. Kh3 Rb1 44. Ra3 Rh1+ 45. Kg2
Ra1 46. Rf3+ Kxe5 47. Rf2 Kd4 48. h5 Rc1 49. h6 e5 50. g4 e4 51. h7 Rc8 52. g5
e3 53. g6 exf2 54. g7 Ke3 55. g8=Q Ke2 56. Qe6+ {1-0 (56) Rubinstein,
A-Marshall,F Breslau 1912}) 6... Be7 7. Bxe7 Ngxe7 8. dxc5 (8. e3 {Marshall
also played this regularly, but had difficulty winning against} cxd4 9. Nxd4
O-O 10. Be2 Qb6 11. Nb3 (11. Qd2 {was I believe Ray Keene's recommendation}) (
11. Qb3 {is the engine line with a slight edge for White.}) 11... d4 {turned
out badly for him against Rubinstein in 1907 (the only game he lost in this
line).} 12. exd4 Rd8 13. d5 Nb4 14. Bf3 Nbxd5 15. Bxd5 Be6 16. O-O Nxd5 17. Na4
Qb4 18. Qd4 b6 19. h3 Qxd4 20. Nxd4 Bd7 21. Nc3 Nxc3 22. bxc3 {0-1 (52)
Marshall,F-Rubinstein,A Karlsbad 1907}) 8... Qa5 (8... d4 9. Ne4 O-O {was
played a few times against Marshall and looks more attractive to me than the
main line: at least, White has some specific problems to solve rather than
just playing his standard structure.}) 9. e3 Qxc5 (9... O-O 10. Bd3 Qxc5 {
Marshall was very happy about this type of position for White: "Black is on
the way to achieving a very fair development, but his position suffers from an
ineradicable weakness: the isolated QP. Not only will White be able to exert
pressure on this weakness, he will have a strong pressure on the central black
squares d4, c5 and e5."} 11. O-O Be6 12. Rc1 Qb6 {led to a game that Marshall
considered "one of my best"} 13. Na4 Qb4 14. h3 h6 15. a3 Qd6 16. Nc5 Rab8 17.
Qe2 Bf5 18. Bxf5 Nxf5 19. Rfd1 Nfe7 20. e4 b6 21. e5 Qd8 22. Ne4 Qc8 23. Nf6+
gxf6 24. exf6 Ng6 25. Qd2 Qf5 26. Qxh6 Qxf6 27. Rxc6 Qxb2 28. Rd4 Qb1+ 29. Kh2
Qf5 30. Rg4 {1-0 (30) Marshall,F-Schlechter,C Ostend 1907}) 10. Bd3 {
Marshall's favourite development of the bishop in this line, rather than the
more natural 10.Be2. 10.Be2 anticipates Black's 10...Bg4, pinning the knight
on f3 to the queen, but in a tactical way so does 10.Bd3!} Bg4 11. O-O Rd8 (
11... O-O 12. Bxh7+ {is Marshall's reason for putting the bishop on d3!}) 12.
Re1 {A clever move, dissuading Black from playing ...d5-d4 by placing the rook
on the e-file while waiting to see how Black solves the current problem with
castling (12...0-0 still allows 13.Bxh7+ Kxh7 14.Ng5+). The prepatory 12...Bh5
seems the best option, followed by 13...0-0 with a decent game for Black. 12.
Re1 elicits a very risky reaction from Lasker which Marshall exploits
skilfully.} (12. Rc1 Qb6 13. Na4 Qc7 14. Re1 d4 15. Nc5 b6 16. Nb3 dxe3 17.
Rxe3 Qd6 18. h3 Bxf3 19. Qxf3 O-O 20. Qe4 g6 21. Bb5 Rc8 22. Bxc6 Nxc6 23. Rec3
Ne7 24. Rxc8 Nxc8 25. Qb7 Qd8 26. Qc7 Qd5 27. Qb8 Qd8 28. Qf4 a5 29. Nd4 Qd5
30. a3 Nd6 31. Kh2 Rc8 32. Rxc8+ Nxc8 {1/2-1/2 (32) Marshall,F-Forgacs,L
Hamburg 1910}) 12... f5 13. h3 Bh5 14. Be2 O-O 15. Nd4 {Simple chess! After ...
f5, White's ability to occupy the central d4-outpost with his knight increases
further in value due to the central light square weaknesses (e.g. e6) created
by the risky ...f5.} Bxe2 16. Ncxe2 Rf6 17. Qb3 Na5 18. Qd3 Nc4 19. b3 Nd6 20.
Rac1 Qb6 21. Rc2 Ne4 22. Rec1 {Marshall has reached a huge position through
the simplest means: occupying a central outpost and taking control of an open
file! Marshall was 3 games down in the match but had stabilised the situation
with 3 consecutive draws, so this was his big opportunity to get back into the
match! This game is analysed in detail by John Nunn, so I'll just focus here
on the crucial moment in the game where Marshall lets his excellent position
slip.} a6 23. Nf4 g5 24. Rc7 Nc6 25. Nfe6 Ne5 26. Rg7+ Kh8 27. Rcc7 {As Nunn
points out, 27.Qe2 and 27.Qd1 were probably both stronger, looking to exploit
the doubled rooks on the seventh in a middlegame, rather than giving Black the
chance to bail out to a confusing endgame.} (27. Qe2 Rxe6 28. Rcc7 Nf6 29. Rxb7
Qd6 30. Nxe6 Qxe6 31. Rge7 Qc6 32. Rec7 Qe6 33. Ra7 {followed by Qxa6 is
Nunn's main line and the engine's too. White's doubled rooks on the seventh,
passed queenside pawns and Black's open king should be sufficient for the win,
even though Black is likely to be able to launch one last desperate attack
before the game is closed off.}) 27... Qxc7 28. Rxc7 Nxd3 29. Nxd8 Ndxf2 30.
Rxb7 Nd1 31. Nf7+ Kg7 32. Nxg5+ Kg6 33. Nxh7 (33. Nge6 Nxe3 34. Nf4+ Kg5 35.
Nde6+ Kh6 36. Ra7 {was the way to do things. It still feels somewhat messy to
a human, but my engine gives +3.6 which is pretty decisive. With so many
knights flying around however, I wouldn't like to have to play this with
little time. Marshall's move wins a second pawn, but has an unexpected
consequence.}) 33... Rf7 34. Rxf7 Kxf7 {The knight on h7 is trapped which
suddenly makes the winning process more fraught. Marshall takes a radical
decision that unfortunately throws away the rest of his advantage.} 35. Nxf5 (
35. h4 {supporting Ng5 was still promising, although Nunn considers that Black
should be able to just hold the draw with best play.}) 35... Ndc3 (35... Kg6
36. Ne7+ Kxh7 37. Nxd5 {was the idea, with a lot of pawns for the knight.
Lasker ensures he gets the very best version of this endgame.}) 36. a4 Kg6 37.
Ne7+ Kxh7 {The d5-pawn is protected so White only gets 3 pawns for the piece.}
38. b4 Nd6 39. Kf2 Kg7 40. Kf3 Kf6 41. Nc6 Nc4 42. b5 a5 43. b6 Nxb6 44. Nxa5
Ncxa4 45. h4 Nc5 46. g4 Nd3 47. g5+ Kf5 48. Nc6 Ne1+ 49. Kf2 1/2-1/2
[Event "New York International Masters-01"]
[Site "New York"]
[Date "1924.03.27"]
[Round "9"]
[White "Marshall, Frank James"]
[Black "Lasker, Emanuel"]
[Result "1/2-1/2"]
[ECO "D10"]
[Annotator "https://matthewsadler.me.uk"]
[PlyCount "124"]
[EventDate "1924.03.16"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "USA"]
[Source "ChessBase"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
{[%evp 0,124,58,35,15,-16,37,16,17,33,26,7,7,7,17,26,27,18,17,3,-5,-6,40,40,54,
-15,24,17,17,17,22,17,21,24,34,40,33,39,28,9,43,43,30,32,41,2,2,-146,42,19,13,
29,75,70,135,134,147,164,158,116,176,176,195,181,181,188,155,144,144,113,137,
137,159,142,142,141,134,93,102,105,121,118,123,120,122,143,213,445,506,43,79,
80,80,80,76,79,147,109,97,98,164,180,236,232,236,180,197,185,185,150,188,131,
130,105,97,100,100,100,100,100,102,95,95,99,99,0,0]} 1. d4 d5 2. c4 c6 3. cxd5
cxd5 4. Nc3 Nf6 5. Qb3 {A little exotic but based around a good positional
concept. White aims to turn the tempo advantage in this symmetrical structure
into a more active positioning of his queen's bishop (outside the d4-e3 pawn
chain) relative to Black's (inside the d5-e6 pawn chain). The queen prevents
the light-squared bishop from developing to f5 by targeting the b7-pawn. It's
a common concept in the Exchange Slav but played here at an unusually early
stage!} (5. Nf3 Nc6 6. Bf4 e6 7. e3 Be7 8. Bd3 O-O 9. O-O Nh5 10. Be5 f5 11.
Rc1 Nf6 12. Bxf6 gxf6 {In a later game, Capablanca repeated Marshall's concept
and Lasker recpatured with a pawn on f6 to keep control of the e5-square that
had caused him such discomfort against Marshall. Capablanca defeated Lasker in
that game after a thrilling fight, so we can safely say that Lasker struggled
against the Exchange Slav!} 13. Nh4 Kh8 14. f4 Rg8 15. Rf3 Bd7 16. Rh3 Be8 17.
a3 Rg7 18. Rg3 Rxg3 19. hxg3 Rc8 20. Kf2 Na5 21. Qf3 Nc4 22. Qe2 Nd6 23. Rh1
Ne4+ 24. Bxe4 fxe4 25. Qg4 f5 26. Nxf5 exf5 27. Qxf5 h5 28. g4 Rc6 29. g5 Kg8
30. Nxd5 Bf7 31. Nxe7+ Qxe7 32. g4 hxg4 33. Qh7+ Kf8 34. Rh6 Bg8 35. Qf5+ Kg7
36. Rxc6 bxc6 37. Kg3 Qe6 38. Kxg4 Qxf5+ 39. Kxf5 Bd5 40. b4 a6 41. Kg4 Bc4 42.
f5 Bb3 43. Kf4 Bc2 44. Ke5 Kf7 45. a4 Kg7 46. d5 Bxa4 47. d6 c5 48. bxc5 Bc6
49. Ke6 a5 50. f6+ {1-0 (50) Capablanca,J-Lasker,E New York 1924}) 5... e6 6.
Bf4 Nc6 7. Nf3 Be7 8. e3 Nh5 9. Bg3 O-O 10. Bd3 f5 11. Be5 Nf6 12. Bxf6 {
A strange, yet typical episode of play during which both sides have tried out
the exchange of knight for bishop on various squares! Marshall did not want
the knight to establish itself on e4 and this decided to exchange it on f6.}
Rxf6 13. Rc1 Bd6 14. Na4 Qa5+ 15. Nc3 (15. Ke2 Nb4 16. Bb1 b6 {is given by
Marshall. The retreat back to c3 is a little embarrassing for White but
doesn't materially affect the position. In fact, Black should simply bring the
queen back to d8 on one of the ensuing moves!}) 15... Rb8 (15... Qd8 16. O-O
Bd7 {would be a sensible way to develop. By trying to exploit the queen's
presence on a5 - it's understandable that Black should try to punish White for
(probably) missing ...Qa5+ - Black ends up misplacing his pieces slightly.})
16. O-O a6 17. Na4 Bd7 18. Nc5 Qc7 (18... Be8 19. Nxb7 Qc7 20. Nxd6 Rxb3 21.
Nxe8 {is the clever line given by Alekhine in the tournament book!}) 19. Ne5 {
Opportunistically exploiting the queen's exposed position on c7: the knight on
e5 exerts strong pressure on the Black queenside, and after 20.f4, White's
knights are both entrenched on the central dark squares around Black's
light-squared pawn centre. The one advantage to 20.f4 from Black's point of
view is that the f-pawn is brought closer to the Black position. This brings
Black's counterplay with ...g5 into contact with White's position much quicker
than before!} Be8 20. f4 (20. Nxe6 Rxe6 21. Qxd5 Bf7 (21... Qe7 22. Bxf5 Nd8 {
is dismissed for White by both Alekhine and Marshall but my engine is very
enthusiastic after} 23. f4 Kf8 24. Bxe6 Qxe6 25. Qxe6 Nxe6 26. Rfd1) 22. Nxf7
Qxf7 23. Bc4 Nd8 {is a better way for Black to defend, losing just one pawn in
return.}) 20... Qe7 {This is a very interesting position from the strategical
point of view and it is well worth paying attention to the coming developments
in the game. Perhaps the first odd thing to me is that White seems to stand
well when it feels as if White has wasted quite a bit of time: i. The bishop
manoeuvre Bf4-g3-e5xf6 in order to exchange a bishop for a knight (albeit with
a purpose: to stop a black knight from occupying the outpost on e4 that Black
had prepared for it with ...d5 and ...f5). ii. The misstep Nc3-a4-c3 followed
by Na4-c5. However, both these two manoeuvres involved a cost for Black as
well: i. Black also wasted time with his knight: ...Nf6-h5-f6 ii. Although
14...Qa5+ checked White's plan, White's basic position was not disrupted by
the check. The white knight was able to retreat back to a good central square
while the black queen was actually poorly-placed on a5 once it had completed
its disruptive purpose. It's an example of a frustrating practical episode in
which the opponent misses a move but the move you gain is of no use for your
plan! In the game, Lasker tried to exploit White's loss of time by leaving the
queen out on a5 and eventually bringing it to c7 rather than d8 (although you
could argue that the latter was forced upon him by circumstances). The net
result was that Lasker allowed 19.Ne5 which would not have been possible if
his queen had been retreated safely to d8 earlier! White has arranged his
pawns and pieces as Capablanca recommended in "Chess Fundamentals", placing
his pawns on squares opposite to that of his bishop. This has led to an ideal
structure against the two bishops: White's pawns on dark squares restrict
Black's dark-squared bishop while Black's light-squared bishop struggles to
get past its own central pawns on light squares. The danger to White's
structure is that the strain of restraining Black's position falls on the pawn
structure on dark squares which misses the support of the dark-squared bishop.
This weakness is not visible while White's pieces are so solidly entrenched on
dark-square outposts - as are the knights on c5 and e5 - but when White
attempts to expand his position (which may necessitate moving or exchanging
one of the knights) then White's position will be more exposed and thus more
vulnerable. Black should also contribute to the erosion of the foundations of
White's structure by organising breaks against White's structure where
possible. The break ...g5 - as Lasker played - is the obvious candidate in
this position. We will play through the next few moves quickly and then
assess what happened.} 21. a3 {A logical move. As Alekhine points out, "Should
Black now remain passive, White withdraws his queen from b3, plays b4 and
quietly prepares b5 which would hold out an easy game with pressure on b7"} (
21. Be2 g5 22. Qd1) 21... Rh6 22. Rf2 g5 23. g3 Kh8 (23... gxf4 24. gxf4 (24.
Nxc6 bxc6) 24... Nxe5 25. fxe5 Rg6+ 26. Kh1 Bxc5 27. Rxc5 Qg5) 24. Qd1 gxf4 25.
Nxc6 (25. gxf4 Nxe5 26. fxe5 Qg5+) 25... bxc6 (25... Bxc6 {would be better but
White is still better. The queen comes to e3 and the white knight will be
rerouted to e5 when White is solid and is ready to gain space on the queenside
by pushing the a- and b-pawns.} 26. exf4) 26. exf4 {Such a lot has happened!
What have both sides achieved? Black has clearly achieved some success in
shaking the foundations of White's position: White has exchanged off his
knight on e5 - which blocked the attack of the dark-squared bishop against the
f4-pawn - and accepted an isolated d4-pawn which is also no longer shielded
along the h8-a1 diagonal by a knight on e5. Why did White play these 2 moves
25.Nxc6 and 26.exf4? First of all, the move 25.Nxc6 was essentially forced
from a tactical point of view: 25.gxf4 would have lost on the spot to 25...
Nxe5 26.fxe5 Qg5+ winning the e3-pawn. However, apart from this, gxf4 is a
fundamentally wrong reaction to ...gxf4. With his rooks split apart - one on
the queenside and one far away and with poor mobility on h6 - Black cannot
challenge effectively for the one open file on the board: the c-file. Opening
the g-file on the kingside is a great result for as it activates the rook on
h6 and also gives the rook on b8 an extra route into the game. White might
have taken better precautions earlier against the threat of ...gxf4 as on the
23rd move, Black could have taken on f4 when 24.exf4 loses the pawn on d4 and
the intermediary 24.Nxc6 is met by 24...bxc6 opening the attack of the rook on
b8 on the queen on b3. For example, 21.Be2 g5 22.Qd1 would defend the d-pawn
and allow White to recapture on f4 with the e-pawn without needing to exchange
on c6. However, even after the capture on c6 in the game, White's position
after 26.exf4 is still very strong. The d-pawn can be well-defended by a queen
on e3, while Black's counterplay against the kingside is surprisingly hard to
prosecute, not least because his queenside pawns and e6-pawn are so weak.} Qg7
(26... a5 {as pointed out by Alekhine, feels more natural as it will at least
force White to use his queen to capture the a-pawn. In the game, it's really
no effort at all for Marshall.}) 27. Bxa6 Bh5 28. Qd2 Rg8 29. Be2 Be8 30. Qe3
Rf6 31. Bf1 Qe7 32. a4 h5 33. Rg2 h4 34. Nd3 {Alekhine calls this "artificial"
but I really like this move. The knight occupies its strongest central post,
blocking any diagonal attacks of the central or kingside dark-squares. It
makes White's position completely safe and leaves White in control with an
extra passed a-pawn.} Qa7 35. b3 Rg7 36. Ne5 hxg3 37. hxg3 Qb6 38. a5 {This
feels odd when White still has a number of moves he could play to improve his
position further. I'm also not too thrilled about exchanging that wonderful
knight on e5 for the bishop on e8!} Qxa5 39. Nxc6 Qb6 (39... Bxc6 40. Rxc6 Qb4
{looks much more like it: you feel that there will always be chances with such
a vulnerable d-pawn.}) 40. Ne5 Rc7 41. Rxc7 Qxc7 42. g4 fxg4 43. Nxg4 Rxf4 {
This position is given as a puzzle in John Nunn's Chess Course! White to play
and win!} 44. Qxe6 {Despite a lot of thought, Marshall misses the win... and
Lasker's defence!} (44. Bd3 {Threatening Qh3+} Bh5 45. Nh6 {Threatening Rg8+}
Rf8 (45... Qc8 46. Nf7+ {mates in 3} ({even} 46. Rg8+ Qxg8+ 47. Nxg8 Rg4+ 48.
Kf2 Rf4+ 49. Kg2 (49. Ke1 Bb4+ {would be embarrassing}) 49... Rg4+ (49... Bf3+
50. Kg1 Rg4+ 51. Kf1 Bg2+ 52. Ke2) 50. Kh3 Rg3+ 51. Qxg3 Bxg3 52. Nf6 Bf2 53.
Nxh5 Bxd4 54. Nf4 {wins too, so this defence doesn't hold out much hope!})
46... Bxf7 47. Qh3+) 46. Nf7+ (46. Qg5 {which Marshall gives, quoting Alekhine
in the tournament book, would give Black some amazing chances to resist with}
Bg6 {when the only way to an advantage is} 47. Rc2 (47. Qxg6 Qc1+) (47. Bxg6
Bf4 48. Nf7+ Kg7 {followed by ...Qc1+ gives Black sufficient compensation for
a draw according to my engine!} 49. Qh4 Qc1+ 50. Kf2 Qd2+ 51. Kf3 Qe3+ 52. Kg4
Kxg6 53. Nh8+ Rxh8 54. Qxh8 Kf7 {White's precarious king stops him from
undertaking anything serious})) 46... Rxf7 47. Qh6+ Rh7 48. Bxh7 Qxh7 49. Qf6+)
44... Rxf1+ 45. Kxf1 Bb5+ 46. Re2 Bxe2+ 47. Qxe2 Qf7+ {A few more mistakes
were made but Marshall was unable to capitalise on his chances and Lasker held
on for a draw.} 48. Qf2 Kg7 49. Ne3 Bf4 50. Ke2 Qc7 51. Qg2+ Kf8 52. Nxd5 Qc2+
53. Kf3 Bd2 54. Qf1 Qxb3+ 55. Ke2+ Ke8 56. Qf5 Qc4+ 57. Kxd2 Qxd4+ 58. Ke2 Qc4+
59. Kf2 Qc5+ 60. Kg2 Qd6 61. Kf3 Kd8 62. Ke4 Qe6+ (62... Qe6+ 63. Qxe6 {
is stalemate. As Marshall commented: "What a superb fighter Lasker was!"})
1/2-1/2
[Event "#1 - Overview"]
[Site "?"]
[Date "2022.07.07"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Annotator "gmmat"]
[PlyCount "58"]
[EventDate "2022.??.??"]
1. e4 (1. d4 {If we force Komodo Dragon to consider 1.d4, then we are in for a
surprise!} Nf6 2. Nf3 d5 (2... e6 {[%cal Gc2c4]} 3. Bf4 {Here once again,
Komodo Dragon prefers the London System to main line d4-c4 systems! This
conclusion is also reached after a great deal of analysis [d=56, 233789Mn] An
amazing conclusion! There's more to come!}) (2... g6 3. c4 Bg7 4. e3 {No
London System here, but the quiet 4.e3 lines that have recently become
extremely popular at the elite level! Komodo Dragon again considers this
"offbeat" approach to be stronger than entering into the main lines with 4.Nc3
(after which it considers the Grunfeld to be more or less equal)} (4. Nc3 d5)
4... O-O 5. Be2 d6 (5... d5 6. cxd5 Nxd5 7. e4) 6. Nc3 Bf5 7. d5 {[%cal Gf3d4,
Ge3e4] A very unusual move (7.0-0 has been played most often in elite games)}
Ne4 8. Nxe4 Bxe4 9. O-O Bxf3 10. Bxf3 a5 11. Rb1 a4 12. Bd2 Nd7 13. Qc2 Ne5 14.
Be2 c6 15. dxc6 $146 (15. e4 {was played earlier in a correspondence game:} Qc7
16. Rfc1 Rfc8 17. Qd1 Qd8 18. Be3 h5 19. h3 Nd7 20. Rc2 Qe8 21. f4 cxd5 22.
Qxd5 Nc5 23. Bf3 Rc7 24. Re2 Rb8 25. Rd1 b6 26. f5 Kh7 27. g4 Be5 28. fxg6+
fxg6 29. gxh5 e6 30. Qd2 gxh5 31. Rg2 Qf7 32. Qe2 Rg8 33. Bxh5 Rxg2+ 34. Kxg2
Qf6 35. Rf1 Rg7+ 36. Bg4 Qg6 37. Bxc5 {1/2-1/2 (37) Kuntze,A (2384)-Hablizel,F
(2393) ICCF email 2020}) 15... bxc6 16. c5 d5 17. b4 axb3 18. axb3 Qc7 19. Rfc1
Ra3 20. Bb4 Ra7 21. Bc3 Rfa8 22. b4 e6 23. h3 Ra2 24. Rb2 R2a7 25. Bd4 Nd7 26.
Bxg7 Kxg7 27. b5 Ra5 28. Qd2 cxb5 29. Bxb5 Nf6 30. c6 Ne8 31. Qc3+ Kg8 {
is evaluated as 0.37 by Dragon.}) 3. Bf4 {The London System! [d=56 178373Mn]
Indeed, Komodo Dragon considers it more promising than Main Line d4-c4 systems!
} (3. c4 {When forced to play this, Komodo Dragon expects the Ragozin:} e6 4.
Nc3 Bb4) 3... c5 4. e3 e6 5. Nbd2 Qb6 6. Rb1 Bd6 7. dxc5 Qxc5 8. Bd3 (8. Bxd6 {
Komodo's choice with slightly less depth [d=55, 85262Mn]} Qxd6 9. c4 dxc4 $146
({Predecessor:} 9... O-O 10. b4 b6 11. Be2 Bb7 12. O-O Qe7 13. Qb3 Nbd7 14.
Rfc1 Rfc8 15. h3 h6 16. a3 a5 17. cxd5 Bxd5 18. Rxc8+ Rxc8 19. Qb2 axb4 20.
axb4 Ne4 21. Nxe4 Bxe4 22. Rd1 Nf6 23. Qd4 Qc7 24. Ne5 Bd5 25. Ba6 Ra8 26. Bd3
Bb3 27. Rb1 Rd8 28. Qb2 Bd5 29. Rc1 Qd6 30. Bf1 Bb7 31. b5 Ne4 32. Nc6 Ra8 33.
Qc2 Nc5 34. Rd1 Qc7 35. Be2 Bxc6 36. bxc6 Qxc6 37. Bf3 Qa4 38. Qd2 Rc8 39. Qd6
{Sunilduth Lyna,N (2658)-Indjic,A (2605) Chess.com INT 2022 0-1 (102)}) 10.
Bxc4 O-O 11. O-O b6 12. Rc1 Bb7 13. Be2 Nc6 14. Nc4 Qe7 15. Qd6 Rfd8 16. Qxe7
Nxe7 17. Nce5 Ne8 18. Ng5 f6 19. Nxe6 fxe5 20. Nxd8 Rxd8 21. Bc4+ Kf8 22. Rfd1
Nc6 23. Rxd8 Nxd8 24. f4 exf4 25. exf4 Bc6 26. g3 Nf6 27. Be2 Ke7 28. b4 Kd6
29. Rd1+ Ke7 {is assessed as 0.29 by Komodo Dragon.}) 8... b6 9. O-O Bb7 10. b4
Qc7 11. Bxd6 Qxd6 12. c4 O-O 13. a3 $146 (13. cxd5 {was played in a high-level
encounter:} Qxd5 14. Nc4 Rd8 15. Qe2 Qh5 16. Rfd1 Nc6 17. a3 Ne7 18. Nfe5 Qxe2
19. Bxe2 Ne4 20. Rxd8+ Rxd8 21. Rd1 Rxd1+ 22. Bxd1 f6 23. Nd3 Bd5 24. Ndb2 e5
25. Bc2 Nc8 26. Kf1 {1/2-1/2 (26) Xiong,J (2686)-Vidit,S (2727) Chess. com INT
2022 1/2-1/2 (26) Xiong,J (2686)-Vidit, S (2727) Chess.com INT 2022}) 13...
Nbd7 14. cxd5 Nxd5 15. Nc4 Qc7 16. Rc1 Rac8 17. Qc2 h6 18. Qb2 Qb8 19. h3 N5f6
20. Be2 Bd5 21. Nd4 Rfd8 22. Rfd1 Ne5 23. Nxe5 Qxe5 24. Rxc8 Rxc8 25. Rc1 Qb8
26. Rc2 Rxc2 27. Qxc2 Qa8 28. Bf1 Qd8 29. Bd3 a5 30. Nb5 axb4 31. axb4 Bb7 32.
Bf1 {is evaluated as 0.19 by Komodo Dragon, but is obviously also drawn. This
line was analysed at the following depth [d=56, 178373Mn]}) (1. c4 {Just like
AlphaZero, Komodo Dragon wants to meet 1.c4 with 1...e5, heading for a
reversed Sicilian.} e5 2. g3 Nf6 3. Bg2 c6 4. d4 e4 5. Bg5 d5 6. Bxf6 Bb4+ 7.
Nc3 Qxf6 8. e3 Be6 9. Nge2 O-O 10. cxd5 cxd5 11. O-O Nd7 {with a 0.10
evaluation is the main line. This is known theory.} 12. Nf4 Bxc3 13. bxc3 Nb6
14. f3 exf3 15. Bxf3 Rac8 16. a4 Qg5 17. Qc1 Rce8 18. Re1 Nc4 19. e4 dxe4 20.
Bxe4 Bd7 21. Nd3 Qxc1 22. Raxc1 b6 23. Bd5 Na5 24. Ne5 Bxa4 25. Ra1 Bc2 26.
Nxf7 Rxe1+ 27. Rxe1 Bb3 28. Nh6+ Kh8 29. Bxb3 Nxb3 30. Ng4 Kg8 31. Re7 a5 32.
Ne5 Nd2) (1. c4 e5 2. Nc3 {[d=49, 202677Mn]} Nf6 (2... Nf6 3. g3 Bb4 4. Bg2 O-O
5. e4 Bxc3 6. bxc3 c6 7. Ne2 d5 8. cxd5 cxd5 9. exd5 Nxd5 10. d4 exd4 11. Qxd4
Be6 12. O-O Nc6 13. Qc5 Qb6 14. Qxb6 axb6 15. Bd2 Nf6 16. Rfb1 Rxa2 17. Rxa2
Bxa2 18. Rxb6 Rd8 19. Rxb7 Rxd2 20. Bxc6 g6 21. Nd4 Nd5 22. Rb8+ Kg7 23. Bxd5
Rd1+ 24. Kg2 Bxd5+ 25. f3 Rd2+ 26. Kg1 Rd3 27. Rd8 Bc4 28. Rc8 Rxc3 29. Kf2 Kf6
30. f4 Rc1 31. Rc6+ Kg7 {with a 0.07 evaluation}) 3. Nf3 Nc6 4. e4 {A
favourite of many engines and even AlphaZero too which I never really
understood. For me, 4.e4 leads to very dull positions with few winning chances
for White.} Bb4 5. d3 d6 6. a3 Bc5 7. b4 Bb6 8. Be3 Bg4 9. Be2 O-O 10. O-O Bxf3
11. Bxf3 Nd4 12. Na4 Nxf3+ 13. Qxf3 Bxe3 14. Qxe3 Nh5 15. g3 f5 16. exf5 Rxf5
17. Nc3 Nf6 18. Rae1 (18. f3 {was a high-rated correspondence game that ended
in a loss...for White!}) 18... a5 19. d4 axb4 20. axb4 Qd7 21. Qd3 Rh5 22. Re2
Ra3 23. dxe5 Rxe5 24. Rxe5 dxe5 25. Qxd7 Nxd7 26. Nb5 Rb3 27. Rd1 Nf8 28. Nxc7
Rxb4 29. Rd8 Kf7 30. Nd5 Rxc4 31. Rb8 Rc1+ 32. Kg2 Ne6 33. Rxb7+ Kf8 {with an
end evaluation of 0.10 (just a draw)}) (1. Nf3 d5 {[%cal Gc2c4]} 2. d4 (2. g3 {
Against the Reti, Komodo Dragon makes a choice that - in retrospect - is quite
obvious!} c5 3. Bg2 Nf6 4. O-O e6 {A reversed 4.e3 system vs the King's Indian!
} 5. c4 d4 6. e3 Nc6 7. d3 Be7 8. exd4 cxd4 9. Qe2 Nd7 10. Na3 e5 11. Nc2 O-O
12. a3 a5 13. Bd2 Bf6 14. b4 Re8 15. Qe4 h6 16. Rfe1 Be7 17. Qe2 axb4 18. axb4
Rxa1 19. Rxa1 e4 20. Nfxd4 Nxd4 21. Nxd4 exd3 22. Qxd3 Ne5 23. Qc3 Bxb4 24.
Qxb4 Qxd4 25. Re1 Be6 26. Bc3 Nd3 27. Bxd4 Nxb4 28. Bxb7 Nc2 29. Rd1 Bxc4 30.
Bc3 Na3 31. h3 Bb3 32. Ra1 Nb5 33. Ba5 Bc2 {with a 0.13 evaluation which is of
course just equal}) 2... Nf6) (1. Nf3 d5 2. c4 d4 {Again the most aggressive
choice from Komodo Dragon, looking to exploit the drawbacks of White's opening
play.} 3. e3 c5 4. b4 Nf6 5. b5 Qc7 6. g3 e5 7. Bg2 a6 8. O-O Bd6 9. d3 O-O 10.
a4 Re8 11. Na3 h6 12. Re1 Bf5 13. bxa6 Nxa6 14. Nb5 Qd7 15. exd4 cxd4 16. a5
Nc5 17. Ba3 Rxa5 18. Bxc5 Rxa1 19. Qxa1 Bxc5 20. Nxe5 Qd8 21. Qd1 g6 22. Nf3
Rxe1+ 23. Nxe1 b6 24. Nf3 Kg7 25. Ne5 h5 26. Nc6 Qd7 27. Ne5 Qd8 {Komodo
Dragon actually considers Black to be slightly better! (-0.07)}) 1... e5 {
If you let Komodo Dragon analyse from the starting position, then I think you
can guess (unfortunately) which line we get... the Berlin! [d=58 732513Mn]} 2.
Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 {Why is the Berlin so popular with neural net
engines? I think it's a product of this URGENCY I mentioned before: the neural
nets are striving to redress the balance as quickly as possible, if necessary
with direct action and the Berlin is the quickest opportunity for this,
capturing one of White's centre pawns and flattening out the position by
forcing exchanges and - in many lines - a symmetrical pawn structure.} 5. Re1
Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 O-O 9. d4 Bf6 10. Re1 Re8 11. c3 Rxe1 12.
Qxe1 Ne8 13. Bf4 d5 {Well... you get the idea! Komodo Dragon ends its line at
move 29 with a 0.29 evaluation but in principle this is completely drawn.} 14.
Nd2 Bf5 15. Qe2 c6 16. Re1 Nd6 17. Qf3 Ne4 18. Nxe4 Bxe4 19. Qg3 Bg6 20. Bc7
Qd7 21. Qd6 Qxd6 22. Bxd6 Bf5 23. f3 h5 24. Kf2 g6 25. g3 a5 26. Bf4 g5 27. Bd6
Kg7 28. h3 h4 29. g4 Be6 *
[Event "#2 - 1.e4 Main Lines"]
[Site "?"]
[Date "2022.07.07"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Annotator "gmmat"]
[PlyCount "64"]
[EventDate "2022.??.??"]
1. e4 c6 {Against the Caro-Kann, the Short system comes out on top after a
huge amount of analysis [d=56, 459935Mn]} (1... e6 {Against the French, after
[d=57, 160801Mn] Komodo Dragon expects a very sharp and forcing (well-analysed)
line:} 2. d4 d5 3. Nc3 Nf6 (3... Bb4 {Not Komodo Dragon's first choice: I had
to make it examine the Winawer!} 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. h4 {
[%cal Gh4h5,Gh5h6,Gh7h6] AlphaZero's favourite line and now Komodo Dragon's
too! At low depths Komodo Dragon prefers the poisoned pawn 7.Qg4 but switches
at greater depths to this line.} Qc7 {[%cal Ga1b1,Gh4h5]} 8. Rh3 {AlphaZero
preferred either 8.Rb1 or 8.h5 (sacrificing the d4-pawn as modern engines are
not afraid to in the French - see "The Silicon Road to Chess Improvement" for
a discussion of this and further examples.)} Nbc6 9. h5 h6 10. Nf3 ({Relevant:
} 10. Qg4 Rg8 11. Qf4 Bd7 12. Bd2 O-O-O 13. Nf3 Rdf8 14. Bd3 f6 15. Qh2 fxe5
16. Nxe5 Nxe5 17. Qxe5 Qxe5+ 18. dxe5 Nc6 19. f4 c4 20. Be2 Be8 21. Be3 b6 22.
Kd2 Kb7 23. g4 Rf7 24. Rg1 Rgf8 25. g5 Ne7 26. g6 Rf5 27. Bg4 Bd7 28. Ra1 Rb8
29. a4 Rff8 30. a5 Nf5 31. Bxf5 Rxf5 32. axb6 a6 33. Rh4 Rc8 34. Bd4 Bb5 35.
Ke3 Be8 36. Kf3 Bb5 37. Kg3 Bd7 38. Ra5 Bb5 39. Rh1 Rff8 {Caruana,F (2792)
-Rapport,R (2763) Baku 2021 1-0}) 10... Qa5 $146 ({Predecessor:} 10... Bd7 11.
Rb1 Rc8 12. Nh4 Na5 13. Qg4 cxd4 14. Qxg7 Rg8 15. Qf6 Nac6 16. Bf4 dxc3 17. Rg3
Nd4 18. Bd3 Rxg3 19. Bxg3 Ba4 20. Qh8+ Kd7 21. Qh7 b5 22. Nf3 Qc5 23. Nxd4 Qxd4
24. Qxh6 Rg8 25. Qf4 Qxf4 26. Bxf4 Rxg2 27. Ke2 Rg4 28. Bg3 Nf5 29. Bxf5 exf5
30. h6 Bxc2 31. h7 Bxb1 32. h8=Q c2 33. Qh6 Re4+ 34. Kf3 Rc4 35. Qd6+ Ke8 36.
e6 fxe6 37. Qxe6+ Kd8 38. Qxd5+ Kc8 39. Qxf5+ Kd8 40. Qd5+ {Bodnaruk,A (2452)
-Bivol,A (2238) Moscow 2014 1-0}) 11. Bd2 Bd7 12. Qc1 c4 13. a4 O-O-O 14. Be2
Qc7 15. Qa3 a5 16. g4 b6 17. Qd6 Qb7 18. Kd1 Be8 19. Qa3 Qd7 20. Nh4 Kb7 21.
Rh1 Ka7 22. Kc1 Rb8 23. f4 g6 24. hxg6 fxg6 25. Qd6 Ka6 26. f5 gxf5 27. Bf3
fxg4 28. Bxg4 Qxd6 29. exd6 Nf5 30. Nxf5 exf5 31. Bxf5 {[%eval 62,0] with an
evaluation of 0.62}) 4. e5 Nfd7 5. f4 c5 6. Nf3 cxd4 7. Nxd4 Nc6 8. Be3 Qb6 {
A sharp and concrete line which Simen Agdestein deployed with great success as
Black when he was thrown into an elite tournament!} 9. Qd2 Qxb2 10. Rb1 Qa3 11.
Bb5 Nxd4 12. Bxd4 a6 13. Bxd7+ Bxd7 14. Rb3 Qe7 15. Rxb7 Qh4+ 16. Qf2 Qxf2+ 17.
Kxf2 Be7 18. Rhb1 Bd8 19. Rb8 Rxb8 20. Rxb8 O-O 21. Rb7 Bc6 22. Ra7 Ba5 23.
Rxa6 Bxc3 24. Bxc3 Rc8 25. Ke3 Bb7 26. Ra3 h5 27. g3 {[#]} Rc4 $146 {[%cal
Gb7c6]} ({Predecessor:} 27... Kh7 28. Kd3 Bc6 {1/2-1/2 (28) Grigoryev,V (2469)
-Merkuriev,V (2233) ICCF email 2021}) 28. Kd3 Kh7 29. Ra7 Bc6 30. Bd4 Bb5 31.
Ra5 Ba4 32. c3 Kg6 33. h3 {with an evaluation of 0.39 but an almost certain
draw}) (1... c5 2. Nf3 (2. c3 {is the solid Sicilian Alapin. As it turns out,
Komodo Dragon recommends a line which I played as a professional [d=49,
72008Mn]} Nf6 3. e5 Nd5 4. Bc4 Nb6 5. Bb3 d6 6. exd6 Qxd6 7. d4 cxd4 8. Nf3 Nc6
9. O-O Be6 10. Bxe6 Qxe6 11. Nxd4 Nxd4 12. cxd4 Rd8 13. Nc3 g6 14. d5 Nxd5 15.
Qd4 {[%csl Ga7,Gh8]} Qf6 16. Qxa7 Nxc3 17. bxc3 Qa6 18. Qxa6 bxa6 19. Be3 Bg7
20. Rac1 {[#]} Rd3 $146 ({Predecessor:} 20... Kd7 21. Rfe1 Rhe8 22. Rc2 Kc6 23.
g3 Rb8 24. Bg5 f6 25. Bc1 e5 26. Re4 Rb1 27. Kg2 Bf8 28. Be3 Rd8 29. Rc4+ Kb7
30. Ra4 Be7 31. c4 Bb4 32. a3 Be1 33. c5 a5 34. c6+ Kc7 35. Rac4 Rd3 36. Bc5 f5
37. Bf8 e4 38. Bh6 Rbb3 39. Bf4+ Kc8 40. Rc5 Bc3 41. a4 Rf3 42. h4 Rd3 43. h5
Rf3 44. c7 Rd3 45. h6 e3 46. fxe3 {1-0 (46) Teeriaho,T (2321)-Laine,E (1963)
ICCF email 2017}) 21. Rfd1 Rxc3 22. Rxc3 Bxc3 23. Rc1 Bf6 24. Rc6 O-O 25. Rxa6
Bd4 26. Bxd4 Rd8 27. Kf1 Rxd4 28. g3 Rd1+ 29. Ke2 Ra1 30. h4 e6 31. a4 Ra2+ 32.
Ke3 {[%eval 16,0] evaluation}) (2. b4 {The Sicilian Wing Gambit which is
surely due to a rennaisance after being recommended by Ginger GM Simon
Williams and Richard Palliser in their book of 1.e4 Gambits! [d=47, 137328Mn]}
cxb4 3. Nf3 Nf6 4. e5 Nd5 5. a3 e6 6. axb4 Bxb4 7. Na3 Nc6 8. c4 Nde7 9. Nc2 a5
10. Nxb4 Nxb4 11. Ba3 Rb8 {[#]} 12. Qb3 $146 ({Predecessor:} 12. Qb1 Nec6 13.
d4 d5 14. exd6 Qxd6 15. Be2 f6 16. O-O O-O 17. Rd1 Bd7 18. Ra2 Be8 19. Rad2 Bg6
20. Qb2 Rfe8 21. d5 exd5 22. cxd5 Ne7 23. Bb5 Rec8 24. Ne1 Rc5 25. Bxb4 axb4
26. Qxb4 Qb6 27. Qf4 Rd8 28. Bc4 Qd6 29. Qg4 h5 30. Qd4 Nf5 31. Qd3 Rdc8 32.
Ba2 Rc1 33. Qf3 b5 34. Qe2 b4 35. h3 {1/2-1/2 (35) Hooft,D-Keijzer,R (2126)
ICCF email 2016}) 12... b6 13. Bxb4 axb4 14. Qxb4 Bb7 15. Be2 O-O 16. O-O Ng6
17. d4 f6 18. g3 Bxf3 19. Bxf3 fxe5 20. Bg2 exd4 21. Qd6 Qf6 22. Rad1 Rfd8 23.
Rxd4 b5 24. cxb5 Rxb5 25. h4 Rb2 26. Rd2 Rxd2 27. Qxd2 Ne5 {with a -0.41
evaluation}) 2... d6 {Against 2.Nf3, Komodo Dragon wants the Najdorf.} (2... e6
3. d4 cxd4 4. Nxd4 {[d=49, 89147Mn]} Nf6 {Komodo's first choice when forced to
play 2....e6} (4... a6 {[d=57, 612382Mn]} 5. Nc3 b5 6. Bd3 Bb7 7. O-O Nc6 8.
Nxc6 Bxc6 9. Re1 {9.Re1 scores better than 9.Qe2.} Qb8 10. h3 {[#]} Ne7 $146 ({
Predecessor:} 10... Bd6 11. a4 b4 12. Nd5 Nf6 13. Nxf6+ gxf6 14. b3 Be5 15. Rb1
Rg8 16. Qh5 f5 17. Bg5 Bd4 18. Qh4 h6 19. Bf4 Be5 20. Bxh6 f4 21. Qh5 Bf6 22.
Rbd1 Qc7 23. Bf1 Rh8 24. e5 Bg7 25. Qg5 Bxh6 26. Qf6 Rh7 27. Bd3 Rg7 28. Qxh6
Rxg2+ 29. Kf1 f3 30. Qh8+ Ke7 31. Qh4+ Ke8 32. Be4 Bxe4 33. Qxe4 Rc8 34. Qxf3
Rg5 35. Qe3 Rf5 36. Rd2 Qc6 37. Qg3 Qh1+ 38. Ke2 Qe4+ 39. Kd1 Qf3+ 40. Qxf3 {
Zakharov,O (2253)-Van Schyndel,A (2256) ICCF email 2011 1/2-1/2}) 11. Be3 Ng6
12. Nd5 Bd6 13. a4 Bh2+ 14. Kh1 Be5 15. Nb6 Ra7 16. axb5 axb5 17. Rxa7 Qxa7 18.
Nc4 Qb8 19. Nxe5 Qxe5 20. c3 O-O 21. f3 Ra8 22. Qc2 h6 23. Rd1 f6 24. Bg1 Qb8
25. Rb1 Ne5 26. Bh2 Ra2 27. Rd1 Qa7 28. Bxe5 fxe5 29. Qd2 Ra1 30. Rxa1 Qxa1+
31. Kh2 Qa2 32. Qe2 Qa4 33. b4 Kf7 34. Qd2 Qb3 35. h4 Ke7 36. h5 Qa3 37. Kh3 {
[%eval 33,0]}) 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Bb7 9. Be2 c5 10. O-O
Qc7 11. Nd6+ Bxd6 12. exd6 {[%cal Gc7d6,Gc2c4]} Qc6 13. f3 c4 14. Qd4 O-O 15.
Bxc4 Qxd6 16. b3 Qb6 17. Qxb6 axb6 18. Bd2 Rfc8 19. a4 $146 ({Predecessor:} 19.
Rfc1 Nc7 20. Bf1 d5 21. Be3 b5 22. Bd4 f6 23. f4 Bc6 24. c3 Ne8 25. Re1 Bd7 26.
Bd3 Nd6 27. Re2 Kf7 28. Rd1 Rab8 29. Rc2 Ra8 30. Re2 Rab8 31. Rc2 Ra8 {1/2-1/2
(31) Vavulin,M (2302)-Krapivin,A (2438) Moscow 2012}) 19... Ne7 20. Bd3 Ba6 21.
c4 d5 22. Rfc1 dxc4 23. bxc4 Nc6 24. Rcb1 Rd8 25. Be4 Rxd2 26. Bxc6 Rad8 27.
Rxb6 Bxc4 28. Rbb1 g6 29. a5 Ba6 30. Be4 Kf8 31. Rb6 Rd1+ 32. Rxd1 {[%eval 73,
0] with an evaluation of 0.73}) 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Nf6 6. f3 (6. Be3
{6.Be3 and 6.f3 often transpose to each other. Komodo Dragon oscillated
between these 2 moves for the duration of its reflection.} e6 {[%cal Ge6e5]} (
6... Ng4 7. Bg5 h6 8. Bh4 g5 9. Bg3 Bg7 10. h3 Ne5 11. Nf5 Bxf5 12. exf5 Nbd7
13. Be2 Nf6 ({Relevant:} 13... Rc8 14. O-O O-O 15. Re1 Nf6 16. Bxe5 dxe5 17.
Bd3 Qc7 18. Ne4 Rfd8 19. Qf3 Rd7 20. c3 Qb6 21. Rab1 Qa5 22. a3 Qb6 23. Re2 Kf8
24. Rbe1 Qb3 25. Bc2 Qb5 26. g3 Nxe4 27. Bxe4 Bf6 28. Rc2 Qb3 29. Rd1 Rcd8 30.
Rxd7 Rxd7 31. Kg2 b5 32. Qe2 Qa4 33. Bf3 Rd6 34. Qe4 Qb3 35. Re2 Kg7 36. Qc2
Qc4 37. Re3 Qa2 38. Re4 Qd5 39. a4 Qc5 40. axb5 axb5 41. Qe2 e6 42. fxe6 Rxe6
43. Re3 {Shankland,S (2718)-Salem,A (2679) Prague 2022 1-0 (63)}) 14. O-O O-O
$146 ({Predecessor:} 14... Qb6 15. Rb1 h5 {1/2-1/2 (15) Belmar Juaranz,C (2260)
-Meissner,R (2206) GER email 2016}) 15. Rb1 {[%cal Gc3d5]} Rc8 16. Bxe5 dxe5
17. Bd3 b5 18. Re1 b4 19. Ne4 Qb6 20. Qf3 Rfd8 21. g3 a5 22. a4 Rd4 23. b3 Rcd8
24. Re2 Nxe4 25. Rxe4 Rxe4 26. Qxe4 Rd4 27. Qf3 Qd6 28. Re1 Qd5 29. Re4 Bf6 30.
Qe2 Rxe4 31. Bxe4 Qd4 32. Bd3 e4 33. Bxe4 Qe5 34. Kg2 Kg7 35. Qf3 h5 36. Bd3 h4
{[%eval 40,0] with an evaluation of 0.40}) 7. f3 b5 8. Qd2 b4 9. Na4 Nbd7 10.
O-O-O Qa5 11. b3 Bb7 12. a3 Qc7 13. axb4 d5 14. Bf2 dxe4 {[%cal Gf2g3]} 15. Bc4
$146 ({Predecessor:} 15. Bg3 e5 16. Bc4 Bd5 17. Bxd5 Nxd5 18. Nb5 axb5 19. Qxd5
Rc8 20. Qxd7+ Qxd7 21. Rxd7 bxa4 22. Rb7 axb3 23. c3 exf3 24. Bxe5 f6 25. Bd4
Bd6 26. Re1+ Be5 27. Bxe5 fxe5 28. Rxe5+ Kd8 29. Rd5+ Ke8 30. Re5+ Kd8 31. Kb2
Rf8 32. Rd5+ Ke8 33. Re5+ Kd8 34. Ree7 Rc6 35. gxf3 {1-0 (35) Horvath,A (2494)
-Nguyen,H (2420) Budapest 2021}) 15... Ne5 16. Qc3 Nxc4 17. bxc4 Bd6 18. Nb3
O-O 19. Na5 Be5 20. Bd4 Bxd4 21. Rxd4 Rad8 22. Nc5 Rxd4 23. Qxd4 Ba8 24. Nxa6
Qf4+ 25. Kb2 e5 26. Qc3 exf3 27. gxf3 Bxf3 28. Re1 e4 29. b5 Re8 30. Nb4 e3 31.
c5 e2 32. b6 Nd7 33. Nd3 Qxh2 34. b7 h6 35. c6 Nb6 {[%eval 47,0] with an
evaluation of}) 6... e5 7. Nb3 Be6 8. Be3 h5 9. Qd2 Nbd7 10. Nd5 Bxd5 11. exd5
g6 12. Be2 Bg7 13. O-O b6 14. a4 O-O 15. c3 {[%cal Gb3a5]} Re8 16. a5 b5 17. h3
h4 $146 ({Predecessor:} 17... Qc7 18. Rad1 Rab8 19. g4 hxg4 20. hxg4 Rbd8 21.
Rf2 Rb8 22. Rh2 Qb7 23. Bh6 Bh8 24. Kg2 e4 25. f4 Rbc8 26. Nd4 Nxd5 27. Nc2 Rc5
28. Ne3 Nxe3+ 29. Qxe3 Rd5 30. Rf1 Rd3 31. Bxd3 exd3+ 32. Qf3 Re2+ 33. Kg1 Qxf3
34. Rxf3 d2 35. Rf1 Rxh2 36. Kxh2 Nf6 37. Kg3 Ne4+ 38. Kf3 f5 39. gxf5 gxf5 40.
Rg1+ Kf7 41. Ke3 Ke6 42. Ke2 Kf7 43. Bg5 b4 44. cxb4 Bxb2 45. Bh4 Bd4 46. Rf1
Ke6 47. Rf3 {Maesa,M (2211)-Lupo,A (2303) ICCF email 2019 1/2-1/2}) 18. Bg5 Qc7
19. Bxh4 Nh5 20. Rfe1 Kh7 21. Bf2 Bh6 22. Qd1 Ndf6 {[%csl Gh5,Gh6][%cal Ge5e4,
Ge4e3]} 23. Bf1 Bf4 24. c4 bxc4 25. Nd2 c3 26. bxc3 Bg3 27. Bxg3 Nxg3 28. Ne4
Nfxe4 29. fxe4 {[%eval 40,0] with an evaluation of 0.40}) (1... e5 2. Nf3 (2.
f4 {We can't forget the King's Gambit! :) [d=49, 116807Mn]} exf4 3. Nf3 d6 (
3... Nf6 {At low depths - [d=40, 11874Mn] - this is Komodo's favourite line.}
4. Nc3 d5 5. exd5 Nxd5 6. Bb5+ c6 7. Qe2+ Be6 8. Nxd5 Qxd5 9. Ba4 {[#]} Na6
$146 ({Predecessor:} 9... Qd8 10. Bb3 Qf6 11. d4 Bd6 12. Bxe6 fxe6 13. Bd2 Nd7
14. O-O-O O-O 15. Rde1 Rae8 16. Ne5 Qe7 17. Rhf1 Bxe5 18. dxe5 Rf5 19. Bxf4
Ref8 {1/2-1/2 (19) Green,P (2241)-Tomasa,I (2263) ICCF email 2020}) 10. Bb3 Qd7
11. d4 Bd6 12. Bxe6 Qxe6 13. Qxe6+ fxe6 14. Bd2 h6 15. O-O-O O-O-O 16. h4 Rhg8
17. h5 g5 18. hxg6 Rxg6 19. Rh4 Rxg2 20. Rxh6 Nc7 21. Rf1 Rf8 22. c4 b6 23. a4
Rg4 24. a5 c5 25. dxc5 Bxc5 26. axb6 axb6 {[%eval 50,0] with an evaluation of
0.50}) 4. d4 g5 5. h4 g4 6. Ng1 Qf6 7. Nc3 Ne7 8. Nge2 Bh6 9. Qd2 {[%cal Gf4f3,
Gd2h6]} Nbc6 {[%csl Gd4,Gf4]} 10. Nb5 Kd8 {[%cal Ga7a6]} 11. d5 {[#]} a6 $146 (
{Predecessor:} 11... Ne5 12. Nxf4 a6 13. Nd4 g3 14. Nde2 Rg8 15. Qd4 Bg4 16.
Be3 Bxe2 17. Nxe2 Nf3+ 18. gxf3 Qxf3 19. Bxh6 Qxh1 20. Bg5 g2 21. Kf2 Rxg5 22.
hxg5 gxf1=Q+ 23. Rxf1 Qh4+ 24. Ng3 Kd7 25. Qf6 Rg8 26. Rh1 Qxg5 27. Qxg5 Rxg5
28. Rxh7 Ke8 {1/2-1/2 (28) Gallagher,J (2510)-Flear,G (2505) Lenk 1992}) 12.
Nbc3 Ne5 13. Nxf4 g3 14. Qe3 N7g6 15. Nce2 Nxf4 16. Nxf4 Ng6 17. Nh5 Bxe3 18.
Nxf6 Bd4 19. Nh5 Bf2+ 20. Kd1 f5 21. exf5 Bxf5 22. Bh6 Ne5 23. Kd2 Kd7 24. Nf6+
Ke7 25. Nh5 Rhf8 26. Bd3 Bg4 27. Bxf8+ Rxf8 28. Be2 Bf5 29. Nf4 Be4 30. Ne6 Rf7
31. Bh5 Bxg2 {[%eval -63,0] with an evaluation of -0.63}) 2... Nc6 (2... Nf6 {
With the World Championship still fresh in our minds, we can't forget the
Petroff! [d=52, 129306Mn]} 3. d4 {3.Nxe5 is Komodo's choice at lower depth
(90000Mn)} (3. Nxe5) 3... Nxe4 (3... exd4 {[d=59, 525923Mn]} 4. e5 Ne4 5. Qxd4
d5 6. exd6 Nxd6 7. Qf4 Nc6 8. Nc3 Be6 9. Bd2 g6 10. O-O-O Bg7 11. Ng5 Qe7 ({
Relevant:} 11... O-O 12. g3 Nd4 13. Qh4 h6 14. Nxe6 Qxh4 15. gxh4 fxe6 16. Bd3
N6f5 17. h5 gxh5 18. Ne4 h4 19. c3 Nf3 20. Nc5 Rae8 21. Nxb7 Be5 22. Nc5 Bd6
23. Ne4 Bxh2 24. Rxh2 Nxh2 25. Be2 Ng7 26. Bxh6 Nf3 27. Rh1 Re7 28. Be3 Rff7
29. Bxf3 Rxf3 30. Rxh4 a5 31. Rg4 e5 32. Rg6 Rh3 33. Kc2 Rh4 34. Nc5 Kh7 {
1-0 (34) Polgar,J (2595)-Jussupow,A (2645) Oviedo 1993}) 12. Nxe6 $146 ({
Predecessor:} 12. Nb5 O-O-O 13. Bc3 Bxc3 14. Nxc3 h6 15. Nxe6 Qxe6 16. Be2 Qe5
{1/2-1/2 (16) Eidemueller,M-Uhl,M Budapest 1992}) 12... fxe6 13. Qe3 O-O-O 14.
Qe1 Rhf8 15. a3 Kb8 16. Kb1 Rf5 17. Be3 a6 18. f3 Ra5 19. Be2 Re5 20. Bc1 Rc5
21. Qf2 Rf5 22. Bd3 Ra5 23. Ne4 Rd5 24. Qe2 Qd7 25. Nxd6 Qxd6 26. Qe4 Rd4 27.
Qe3 Rd5 28. Qf4 Qe7 29. Rhe1 R8d6 30. Be2 Nd4 31. Bf1 {[%eval 60,0] with an
evaluation of 0.60}) 4. Bd3 d5 (4... Nc6 {Not Komodo's main move [d=48,
58201Mn]} 5. Nxe5 Nxe5 6. dxe5 Nc5 7. Bc4 d6 8. Qf3 Ne6 9. exd6 Bxd6 10. Be3
Bd7 11. Bd5 c6 12. Bc4 O-O 13. Nc3 Be5 14. O-O-O Qc7 15. Rd3 Rad8 16. Rhd1 Bc8
17. g3 Rxd3 18. Rxd3 h6 19. Qh5 Rd8 20. Rxd8+ Nxd8 21. Bd3 b6 22. Qh4 Ne6 23.
Qa4 Bd7 24. f4 Bxc3 25. bxc3 c5 26. Qe4 Nf8 27. f5 Bc6 28. Bf4 Bxe4 29. Bxc7
Bc6 30. Kd2 Nd7 31. c4 Kf8 32. Ke3 {[%eval 23,0] with an evaluation of 0.23})
5. Nxe5 Bd6 6. Nc3 Nxc3 7. bxc3 O-O 8. O-O Nd7 9. Re1 c5 10. Qf3 c4 11. Bf5
Nxe5 12. dxe5 Re8 13. Bxc8 Rxc8 14. Bg5 Be7 15. Be3 ({Relevant:} 15. e6 fxe6
16. Rxe6 Bxg5 17. Rxe8+ Qxe8 18. Qxd5+ Kh8 19. Qxg5 Qe2 20. Qf5 Rd8 21. h3 h6
22. a4 b6 23. Qg4 Qxg4 24. hxg4 Rd2 25. Rc1 Kg8 26. Kf1 Kf7 27. Ke1 Rd5 28. Rb1
Ke6 29. Rb4 Re5+ 30. Kd2 Kd5 31. a5 bxa5 32. Ra4 Kc6 33. Rxc4+ Rc5 34. Re4 Kb5
35. f4 a4 36. Re7 a5 37. Rxg7 a3 38. Kc1 Rxc3 39. g5 a2 40. Kb2 Rxc2+ 41. Ka1
hxg5 42. Rxg5+ Kb4 43. Rg3 Rf2 44. Rf3 Rxf3 {Nepomniachtchi,I (2773)-Dominguez
Perez,L (2753) Bucharest 2022 1/2-1/2}) 15... Bc5 {[#]} 16. Bd4 $146 ({
Predecessor:} 16. Bxc5 Rxc5 17. Rad1 Ra5 18. h3 Qd7 19. Rd4 Qe6 20. Re2 h6 21.
Qe3 Rxa2 22. f4 Ra5 23. Qf3 f5 24. Red2 Rd8 25. Rxc4 Qb6+ 26. Rcd4 Rc5 27. Kh2
Qc6 28. Qd3 Rf8 29. Rxd5 Rxc3 30. Qe2 Rxc2 31. Rd6 Rxd2 32. Qxd2 Qe4 33. Rd4
Qc6 34. Qa2+ Kh7 35. Qxa7 Rc8 36. Rb4 Rc7 37. Qe3 Qc2 38. e6 Rc3 39. Qe5 Rc5
40. Qd6 Rc6 41. Qd5 Qe2 42. Qxf5+ Kh8 {1-0 (41) Abrahamyan,T (2311)-Zatonskih,
A (2393) Saint Louis 2022}) 16... Bxd4 17. cxd4 b5 18. a3 a5 19. c3 h6 20. g3
Rb8 21. Kg2 Rb6 22. Re2 Qd7 23. Rb1 Rd8 24. Reb2 Re8 25. Qe3 f6 26. f4 Reb8 27.
Qf3 b4 28. axb4 axb4 29. Rxb4 Rxb4 30. cxb4 Qf5 31. Qxd5+ Kh7 32. Re1 Rxb4 {
[%eval 38,0] with an evaluation of 0.38}) 3. Bc4 {The Italian Game is not
Komodo's first choice (the Berlin unfortunately!) [d=55, 192094Mn]} (3. d4 {
The Scotch game. Kasparov revitalised this venerable opening in the 1990s with
many original ideas but the engines all prefer the old, boring lines! [d=58,
137398Mn]} exd4 4. Nxd4 Nf6 {[%cal Gd4c6,Ge4e5]} 5. Nc3 Bb4 {Undoubtedly one
of the most tedious lines of all though most elite players have tried to make
something of it!} 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. O-O O-O 10. h3 Re8 11.
Qf3 c6 12. Bf4 Bd6 13. Rfe1 Be6 14. Ne2 a5 15. b3 Qb8 {[#]} 16. c4 $146 ({
Predecessor:} 16. Rad1 a4 17. Qg3 Bxf4 18. Nxf4 a3 19. c4 dxc4 20. bxc4 Qc7 21.
Nxe6 Qxg3 22. fxg3 Rxe6 23. Rxe6 fxe6 24. Bc2 Kf7 25. Kf2 Ke7 26. Ke3 Rb8 27.
Rb1 Rxb1 28. Bxb1 Kd6 29. Kd4 e5+ 30. Kc3 Kc5 31. Kb3 e4 32. Kxa3 e3 33. Bd3
Kd4 34. Be2 Kc3 35. Ka4 Ne4 36. Ka5 Kd2 37. Bg4 Nf6 38. Bf3 Nd7 39. Kb4 Ne5 {
0-1 (39) Xiong,J (2709)-Paravyan,D (2654) Chess. com INT 2020}) 16... a4 17.
Rad1 axb3 18. axb3 Bxf4 19. Nxf4 Qd6 20. Re2 Rab8 21. Bc2 h6 22. Nxe6 Rxe6 23.
Rxe6 Qxe6 24. Qf4 Re8 25. Bd3 Qe5 26. Qxe5 Rxe5 27. Ra1 Kf8 28. Kf1 Ne4 29.
Ra8+ Ke7 30. Ra7+ Ke6 31. Bxe4 Rxe4 32. Rc7 Kd6 33. Rxf7 dxc4 34. bxc4 {
[%eval 13,0]}) 3... Nf6 4. d3 (4. Ng5 {Komodo Dragon is not at all impressed
with this line. It considered many sharp alternatives before plumping for
something relatively sober. [d=63, 421386Mn]} d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6
bxc6 8. Bd3 Nd5 9. Nf3 {[%cal Gd5f4]} Bd6 10. Nc3 O-O 11. Be2 Qc7 12. d3 f5 {
[#]} 13. O-O $146 ({Predecessor:} 13. Nd2 Nf4 14. O-O Nxe2+ 15. Qxe2 Ba6 16.
Qh5 c5 17. b3 Nc6 18. Nc4 Nd4 19. Be3 Nxc2 20. Rac1 Nd4 21. Rfe1 Bb7 22. Bxd4
exd4 23. Nb5 Qc6 24. Qf3 Qxf3 25. gxf3 Bf4 26. Rc2 Rf6 27. Kf1 a6 28. Nba3 Rh6
29. Ne5 Re8 30. Nac4 Bd5 31. Rce2 Rxh2 32. Nb6 Rh1+ 33. Kg2 Rxe1 34. Rxe1 Re7
35. Nxd5 Rxe5 36. Rxe5 Bxe5 37. Ne7+ Kf7 38. Nxf5 Kf6 39. Ng3 Bxg3 40. fxg3 Kf5
41. Kh3 g5 42. Kg2 h5 {Ivanov,O (2441)-Triapishko,A (2510) Moscow 2020 1/2-1/2}
) 13... Nxc3 14. bxc3 e4 15. dxe4 fxe4 16. Ng5 Bf5 17. Bg4 Bxh2+ 18. Kh1 Be5
19. Bxf5 Rxf5 20. Nxe4 Raf8 21. Ba3 Qf7 22. Kg1 Re8 23. Re1 Nc4 24. Bc5 Bxc3
25. Nxc3 Rxc5 26. Rxe8+ Qxe8 27. Qd3 Qe5 28. Rd1 Nd6 29. Na4 Rd5 30. Qb3 Ne4
31. Nb2 h5 32. Nd3 Qd4 33. Re1 Kh7 34. Qb7 Nc5 35. Qf7 Nxd3 {[%eval 7,0] with
an evaluation of 0.07}) 4... Bc5 5. O-O d6 6. c3 a5 7. Re1 {[%cal Gc5a7]} O-O
8. h3 h6 9. Bb5 Ba7 10. Nbd2 Ne7 11. d4 Ng6 12. Nf1 exd4 13. cxd4 d5 14. e5 Ne4
{[%cal Gb5d3] [#]} 15. Ng3 $146 ({Predecessor:} 15. Bd3 f5 16. exf6 Qxf6 17.
N1h2 Bf5 18. Ng4 Qf7 19. Be3 Rae8 20. Qc2 Bxg4 21. hxg4 c6 22. Rad1 Qd7 23. Nh2
Nf4 24. f3 Nd6 25. Bf2 Rxe1+ 26. Rxe1 Qd8 27. Bf1 Qf6 28. Qd2 Ne6 29. Rd1 a4
30. b3 axb3 31. axb3 Bb6 32. Be3 Ra8 33. Bf2 Qf4 34. Qe2 Qf6 35. Qd2 Qf4 36.
Qe2 Nc7 37. Be3 Qf7 38. Qd2 Re8 39. Ra1 Ne6 40. Qb4 Bc7 41. Qd2 Bb6 42. Qb4 Bc7
43. Bd3 Qf6 44. Nf1 g6 {Hall,T (2019)-Bergh,E ICCF email 2018 0-1 (78)}) 15...
f5 16. exf6 Qxf6 17. Nxe4 dxe4 18. Rxe4 c6 19. Bd3 Bxh3 20. gxh3 Qxf3 21. Be3
Qxh3 22. Qg4 Qxg4+ 23. Rxg4 Ne7 24. Bxh6 Bxd4 25. Rxd4 gxh6 26. Rd7 Nd5 27.
Rxb7 Nf4 28. Bc4+ Kh8 29. Re1 Rab8 30. Ree7 Rxb7 31. Rxb7 Nh3+ 32. Kg2 {
[%eval 26,0] with an evaluation of 0.26}) 2. d4 d5 3. e5 {The Advance
Caro-Kann.} Bf5 {[%cal Gb1c3,Gg2g4]} (3... c5 {is the Khenkin-Arkell and has
been the recommendation of many recent books on the Caro-Kann. There were many
AlphaZero-Stockfish 8 games in this line and in fact AlphaZero tried a wide
variety of ideas (including the one Komodo played here). There are quite a few
videos on the Game Changer chess site analysing these: https://youtu.be/
l2d6TYxw0QA , https://youtu.be/i9_Pisl8Uoo , https://youtu.be/uxkvU2LG33U ,
https://youtu.be/898vT0O4Vt0 to mention just a few! The line Komodo Dragon
eventually chose was reached after [d=52, 314953Mn]} 4. dxc5 e6 5. Nf3 Bxc5 6.
a3 {[%cal Gb2b4,Gc2c4,Gb1d2,Gc1b2,Gf1d3]} a6 7. Bd3 Nc6 8. b4 Ba7 9. Nbd2 Nge7
10. c4 Ng6 11. Bb2 Qc7 12. Bxg6 fxg6 13. b5 {A novelty instead of 13.0-0 which
was played ina low-ranked correspondence game.} axb5 14. cxb5 Na5 15. O-O O-O
16. Qc1 Bb6 17. Qxc7 Bxc7 18. Rfc1 Bd8 19. h4 Rf7 20. a4 Rc7 21. Rxc7 Bxc7 22.
Rc1 Bd8 23. Bc3 Bd7 24. Bxa5 Bxa5 25. Nb3 Bd8 26. Ra1 Rc8 27. Nfd4 b6 28. g3
Rc4 29. f4 Rb4 30. Kf2 Kf7 31. Ke2 h6 {[%eval 42,0] is an evaluation of 0.42})
4. Nf3 e6 5. Be2 {[%cal Gc2c4,Gd1b3] A brainchild of Nigel Short who reasoned
that the development of Black's light-squared bishop outside the pawn chain
shouldn't necessarily mean the end of White's ambitions for an opening
advantage. The bishop is active on f5, but with the pawn on e5 taking away f6
and d6 from the black kingside minor pieces, Black has some difficulties
completing its development. And the absence of the light-squared bishop from
the queenside makes Black's queenside light squares and centre a fruitful area
of pressure for the white pieces. Nowadays, this is more or less the main
attempt against the Caro-Kann.} c5 6. Be3 {The evolution of Short's original
system: White reinforces d4 preparing for c4 striking at Black's centre and
opening b3 and a4 for the white queen to attack Black's queenside.} cxd4 7.
Nxd4 Ne7 8. c4 {[%csl Gb3,Ga4]} Nbc6 9. Qa4 dxc4 10. Nc3 a6 11. O-O-O Qa5 12.
Qxa5 Nxa5 13. Nxf5 Nxf5 14. Bb6 Nc6 15. f4 Rc8 16. g3 Be7 17. Bf3 g5 18. Be4
gxf4 19. gxf4 Nb4 20. Kb1 Rg8 {A position well-known from opening theory.
Komodo suggests a new move, but Black should still be just fine.} 21. Na4 $146
({Predecessor:} 21. Rhf1 Rg4 22. Na4 Rb8 23. Bc7 Rc8 24. Bb6 Rb8 25. Bc7 {
1/2-1/2 (25) Bank (2452)-Methling,L (2332) ICCF email 2010}) 21... Bd8 22. a3
Nc6 23. Rc1 Nfe7 24. Bxd8 Rxd8 25. Rxc4 Rg4 26. Nc5 b5 27. Bxc6+ Nxc6 28. Rc2
Rxf4 29. Nxe6 fxe6 30. Rxc6 Kf7 31. Rxa6 b4 32. Ra7+ Kg6 {with approximate
equality} *
[Event "#3 - 1.e4 sidelines"]
[Site "?"]
[Date "2022.07.07"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "B03"]
[Annotator "gmmat"]
[PlyCount "56"]
[EventDate "2022.??.??"]
1. e4 Nf6 {After a great deal of analysis [d=53, 327650Mn] Komodo Dragon
plumps for the 4 Pawns attack!} (1... d5 {[d=58, 1032902Mn]} 2. exd5 Nf6 {
Book exit} (2... Qxd5 {[d=50, 184647Mn]} 3. Nc3 Qa5 {d=50 184647Mn} (3... Qd6 {
After very deep analysis [d=56, 1173675Mn] Komodo Dragon prefers:} 4. Nf3 Nf6
5. d4 g6 6. Be2 Bg7 7. Nb5 Qd8 8. c4 O-O 9. O-O Ne4 {[#]} 10. Re1 $146 ({
Predecessor:} 10. Bf4 Nd6 11. Qb3 Nxb5 12. Qxb5 c6 13. Qb3 Qb6 14. Qe3 Bf5 15.
b3 Nd7 16. Bh6 Bxh6 17. Qxh6 Nf6 18. Qe3 Bg4 19. Rad1 Rfe8 20. Rfe1 Rad8 21. a3
Bxf3 22. Bxf3 Rd7 23. Qc3 Red8 24. g3 Qc7 25. Kg2 a6 26. Qb2 Ne8 27. h4 h5 28.
d5 cxd5 29. Rxd5 Rxd5 30. Bxd5 b6 {1/2-1/2 (30) Sachuk, A-Fels,B (2214) ICCF
email 2016}) 10... c6 11. Nc3 Nxc3 12. bxc3 Re8 13. c5 b6 14. Bc4 Ba6 15. Bb3
bxc5 16. Ng5 c4 17. Qf3 Rf8 18. Bc2 h6 19. Ne4 Nd7 20. Ba3 Nb6 21. Nc5 Bc8 22.
Qxc6 Rb8 23. Qf3 Nd5 24. Be4 e6 25. Bxd5 exd5 26. h3 h5 27. Re2 Qa5 28. Bb4
Rxb4 29. cxb4 Qxb4 30. Qxd5 c3 {[%eval 99,0] with an evaluation of}) 4. Nf3 Nf6
5. d4 Bf5 6. Ne5 c6 7. Bc4 e6 8. g4 Bg6 9. h4 Nbd7 10. Nxd7 Nxd7 11. h5 Be4 12.
O-O Bd5 13. Nxd5 cxd5 14. Bd3 {This line has been very popular in engine chess.
In principle, Black has been holding though a few losses have crept in} Bd6 (
14... Bd6 15. Bd2 (15. a4 O-O 16. Qf3 a6 17. c3 Rae8 18. Kg2 Qd8 19. Rh1 h6 20.
Bd2 Nf6 21. g5 Nh7 22. gxh6 Ng5 23. h7+ Kh8 24. Qe3 Nxh7 25. Rae1 Qd7 26. Bc2
b5 27. a5 f5 28. Kf1 Qc7 29. Rg1 b4 30. Rg6 Rf6 31. Ra1 bxc3 32. Qxc3 Qb7 33.
Ba4 Rc8 34. Qd3 Bb4 35. Bf4 Nf8 36. Rg3 Rf7 37. Bd1 Rc4 38. Be2 Be7 39. Qd2 Rc6
40. Qd1 Bd6 41. Bxd6 Rxd6 42. Rc1 Rd8 43. Qb3 Qe7 44. Rc6 f4 45. Rgc3 Qh4 46.
Bf3 e5 47. dxe5 Re7 48. Qc2 d4 49. Rd6 Rde8 50. Rxd4 Rxe5 51. Re4 Qh3+ 52. Bg2
Qf5 53. Rxe5 Qxe5 54. Bf3 Qxa5 55. Rc5 Qe1+ 56. Kg2 Nd7 57. Rc8 Nf6 58. Be2 f3+
59. Bxf3 Qe5 60. Rc5 Qe7 61. Rf5 Rb8 62. b3 Ng8 63. Qd3 Nh6 64. Ra5 {
adjudication 1-0 (98) LCZero 0.29-dev+_AP-Mish-2M (3589)-rofChade 2.323 (3484)
https://tcec-chess. com/#season 2022}) 15... Qb6 16. c3 Bc7 17. a4 O-O 18. h6
g6 19. f4 Nf6 20. Qe2 Ne4 21. Bxe4 dxe4 22. Be3 Qc6 23. c4 a5 24. Ra3 Bd6 25.
c5 Bc7 26. Qc4 Rfd8 27. Rb3 Rd5 28. Qb5 Ra7 29. Qe2 Kf8 30. Rb5 Ra8 31. Qf2 Ke7
32. b3 Kd7 33. Rc1 Ke7 34. Re1 Rad8 35. Rf1 Ke8 36. Rb1 R8d7 37. Rc1 {
adjudication 1/2-1/2 (37) Stockfish 202009282242_nn-baeb (3564)-LCZero v0.26.
3-rc1_T60.SV.JH.9 (3542) https://tcec-chess.com/#season 2020}) (14... g6 15. h6
Bd6 16. a4 O-O 17. Qf3 f5 (17... a6 18. Bf4 Qc7 19. Bg5 Rae8 20. Rfe1 Be7 21.
Bxe7 Rxe7 22. c3 f5 23. g5 Nb8 24. Rad1 Nc6 25. Bf1 Rfe8 26. Re2 Na5 27. Bg2
Nc4 28. Rc1 Na5 29. Qh3 Kf7 30. Ra1 Qf4 31. Qe3 Qxe3 32. Rxe3 Nb3 33. Ra2 b6
34. Re1 Nd2 35. Rd1 Ne4 36. f4 Rc7 37. Bf1 a5 38. Rc1 Nd2 39. Kf2 Ne4+ 40. Ke1
Rec8 41. Ra3 Rd8 42. Rb3 Rc6 43. Ba6 Ke7 44. Rc2 Nd6 45. Ke2 Rg8 46. Ra3 Rc7
47. Ra1 Ne4 48. Rac1 Ra8 49. Bb5 Rac8 50. Ke3 Kd6 51. c4 dxc4 52. Ba6 Kd5 53.
Ke2 Nd6 54. Bxc8 Rxc8 55. b3 Ke4 56. bxc4 Kxf4 57. Rb1 Rc6 58. c5 bxc5 59. dxc5
Ne4 60. Rb7 Kxg5 61. Rxh7 e5 62. Ke1 Nxc5 63. Kf1 e4 64. Ra7 Kxh6 65. Rxa5 Rd6
66. Raxc5 {adjudication 1-0 (86) Stoofvlees II b1 (3511)-Ethereal 13.
66_NNUE-5DCD (3471) https://tcec-chess.com/#season 2022}) 18. Bg5 Nf6 19. gxf5
exf5 20. Bxf6 Rxf6 21. Rfe1 Kh8 22. Re2 Qd8 23. Rae1 Rf8 24. Kf1 Qh4 25. Qxd5
Qxh6 26. Qg2 Rac8 27. c3 Rc7 28. Re6 Bf4 29. Qf3 Kg7 30. a5 Rf6 31. Re8 Rf8 32.
R8e6 Rf6 33. Re8 Rf8 34. R8e7+ Rf7 35. Rxf7+ Rxf7 36. Bc4 Rc7 37. Bd5 Bd6 38.
Bxb7 Qd2 39. Qd5 Re7 40. Rxe7+ Bxe7 41. Qe6 Bh4 42. Qe5+ Bf6 43. Qe2 Qc1+ 44.
Kg2 Qg5+ 45. Kf3 Qc1 {[%eval 5402,0] 1/2-1/2, LCZero v0.26.3-rc1_T60.SV.JH.9
3542 - Stockfish 202009282242_nn-baeb 3564, TCEC Season 19 (28) Superfinal,
https://tcec-chess.com/#season (25.1),}) 15. Qf3 O-O-O 16. c3 ({Relevant:} 16.
Be3 g6 17. h6 Rhf8 18. a3 f5 19. c4 e5 20. b4 Qc7 21. c5 Be7 22. Bb5 e4 23. Qh3
f4 24. Bd2 Bg5 25. c6 Nf6 26. cxb7+ Qxb7 27. Rac1+ Kb8 28. Bc6 Qe7 29. Rc5 e3
30. fxe3 fxe3 31. Be1 Ne4 32. Qh2+ Kc8 33. Bd7+ Kxd7 34. Rc7+ Ke6 35. Qe5# {
1-0 (35) Firouzja,A (2759)-Carlsen,M (2847) chess24.com INT 2021}) 16... Rdf8
17. Kg2 $146 ({Predecessor:} 17. Be3 Kb8 18. Rfc1 f5 19. gxf5 exf5 20. Bg5 Nf6
21. c4 dxc4 22. Rxc4 Qd5 23. Qxf5 Qxf5 24. Bxf5 Nxh5 25. Bg4 Nf4 26. Re1 h5 27.
Bxf4 Bxf4 28. Bh3 Rf7 29. d5 g5 30. Be6 {1/2-1/2 (30) Harikrishna,P (2730)
-Hera,I (2611) Brest 2019 CBM 190 Extra [ChessBase II]}) 17... h6 18. a4 Kb8
19. Bf4 Bxf4 20. Qxf4+ Qc7 21. Qg3 Nf6 22. a5 Re8 23. Rfe1 Re7 24. Re2 a6 25.
Qxc7+ Kxc7 26. Kg3 Ne8 27. f4 Nd6 28. Rae1 Kd8 29. f5 Rhe8 30. fxe6 Rxe6 {
[%eval 72,0] evaluation}) 3. d4 {with an evaluation of 0.82 is (surprisingly)
Komodo's preferred choice as Black}) (1... d6 2. d4 Nf6 {Dragon - after [d=54,
347283Mn] - considers the transposition to the Philidor to be Black's best
option after 1...d6} 3. Nc3 (3. f3 {My favourite line was Komodo's first
choice at slightly lower depths: [d=47, 79069Mn]} e5 4. d5 Be7 5. Be3 h5 {
[diagram] A typical modern engine move!} 6. Qd2 $146 ({Predecessor:} 6. c4 Nh7
7. Nc3 Bg5 8. Qd2 h4 9. Bd3 a5 10. Bc2 Na6 11. Nge2 O-O 12. g3 Bh3 13. Rg1 hxg3
14. hxg3 f5 15. O-O-O Bxe3 16. Qxe3 Ng5 17. f4 Nxe4 18. Nxe4 fxe4 19. g4 exf4
20. Qxh3 f3 21. Nc3 f2 22. Rh1 Qg5+ 23. Kb1 e3 24. Bf5 Nc5 25. Ne4 Qh6 26. Qf3
Qg6 27. Nxc5 dxc5 28. Qxe3 {1-0 (28) Pridorozhni,A (2552)-Nikitenko,M (2374)
Kazan 2016}) 6... O-O 7. c4 Nh7 8. Nc3 Bg5 9. Bxg5 Qxg5 10. Qxg5 Nxg5 11. h4
Nh7 12. Bd3 a5 13. a3 g6 14. Nge2 Bd7 15. Kd2 a4 16. Bc2 Ra5 17. Rhg1 Kg7 18.
Nc1 Nf6 19. Rf1 Rc8 20. Nd3 Rd8 21. Ke3 Rc8 22. Rfc1 b6 23. Rf1 Rf8 24. Nb4 Ng8
25. Rac1 Na6 26. Nxa6 Rxa6 27. Na2 Raa8 {[%eval 52,0] with an evaluation of 0.
52}) 3... e5 (3... g6 4. Bf4 c6 (4... Bg7 5. Qd2) 5. Qd2 {[%emt 0:00:03] with
an evaluation of 0.72 is Komodo Dragon's favourite line for White! This
position might often be reached via the Jobava London system! This system was
explored in the fantastic game RubiChess-Stoofvlees TCEC Swiss https://youtu.
be/iesoC_aWg74}) 4. Nf3 Nbd7 5. Bc4 (5. Rg1) (5. h3 {[%cal Gg2g4]}) 5... Be7 6.
O-O O-O 7. a4 exd4 8. Nxd4 Re8 9. h3 c6 10. Re1 Bf8 11. Bg5 Qa5 12. Qd2 h6 {[#]
} 13. Bh4 $146 ({Predecessor:} 13. Be3 Qb4 14. Bf1 Ne5 15. Qc1 Qa5 16. Qd2 Qc7
17. f3 Bd7 18. Bf2 Ng6 19. Kh1 a6 20. Bg3 b5 21. Nf5 Ne5 22. Ne3 Rad8 23. Qd4
Qb8 24. axb5 axb5 25. Red1 b4 26. Ne2 Bxh3 27. gxh3 Nxf3 28. Qd3 Nxe4 29. Nf5
Nxg3+ 30. Nexg3 Ne5 31. Qd2 Re6 32. Qf4 Rde8 33. Rd2 Ng6 34. Qf2 d5 35. Nh5 Qd8
36. Qg3 Qg5 37. Qxg5 hxg5 38. Nd4 Re1 39. Rdd1 Rxd1 40. Rxd1 Rc8 41. Ng3 Bd6
42. Ngf5 Be5 {Repp,H (2512)-Siikaluoma,A (2499) ICCF email 2011 1/2-1/2}) 13...
Ne5 14. Bb3 Nh5 15. Qd1 Ng6 16. Qf3 Be6 17. Bxe6 fxe6 18. e5 Nhf4 19. Nb3 Qc7
20. exd6 Bxd6 21. Bg3 Qf7 22. Bxf4 Nxf4 23. a5 Bc7 24. Ne2 Nd5 25. Qxf7+ Kxf7
26. c3 e5 27. Ng3 Rad8 28. Ne4 b6 29. axb6 axb6 {with an evaluation of 0.54.})
(1... g6 2. d4 Bg7 (2... d6 {is the move order that Dragon wanted for a very
long time before switching back to 2...Bg7. One of the points is the
possibility to meet 3.c4 with 3...e5 (as Iosif Dorfman did against me)} 3. c4
e5 {[d=45, 294648Mn]} 4. Nc3 (4. dxe5 dxe5 5. Qxd8+ Kxd8 {[%csl Gf8][%cal
Gf8c5,Gc5b4]}) 4... Bg7 5. d5 a5 6. Bd3 Na6 7. Bc2 Bh6 8. Bxh6 Nxh6 9. Qd2 Ng4
10. h3 Nf6 11. Nge2 Nc5 12. b3 Qe7 $146 ({Predecessor:} 12... O-O 13. O-O Nh5
14. a3 f5 15. exf5 Bxf5 16. b4 Bxc2 17. Qxc2 axb4 18. axb4 Rxa1 19. Rxa1 Nd7
20. Ne4 Qh4 21. N2c3 Ndf6 22. Ra7 Nxe4 23. Nxe4 Nf6 24. Nxf6+ Qxf6 25. Rxb7 e4
26. Qxe4 Qxf2+ 27. Kh2 Rf4 28. Qe6+ Rf7 29. Qe4 Rf4 30. Qe7 Rf7 31. Qe4 Rf4 {
1/2-1/2 (31) Moroni,L (2562)-Bernadskiy,V (2619) Bassano del Grappa 2020}) 13.
O-O O-O 14. a3 Nh5 15. b4 Nd7 16. Nb5 Qd8 17. Bd3 b6 18. g4 Nhf6 19. Qh6 Kh8
20. f3 Ng8 21. Qe3 h6 22. Kg2 Kg7 23. Rh1 Ngf6 24. Ng3 Ne8 25. Nc3 axb4 {
with a slight White advantage}) 3. c4 {is Komodo Dragon's final choice after
huge analysis: [d=54, 1486038Mn]}) 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 {Book
exit} dxe5 6. fxe5 Bf5 7. Nf3 e6 8. Nc3 Nc6 9. Be2 Be7 10. Be3 O-O 11. O-O f6
12. exf6 Bxf6 13. Qd2 Qe7 14. Rad1 Rad8 15. Kh1 {An important sidestep
according to Gawain Jones in his "Coffeehouse Repertoire" in which he also
recommends this opening for White.} h6 16. h3 (16. Qc1 {was Jones'
recomendation} Kh8 (16... Rd7 17. d5 exd5 18. Nxd5 Qf7 19. Nxf6+ Qxf6 20. c5
Rxd1 21. Qxd1 Rd8 22. Qc1 Nd5 23. Bf2 Rd7 24. Bg3 Qe7 25. Bb5 Qe3 26. Bxc6 bxc6
27. Ne5 Qxc1 28. Rxc1 Re7 29. Nxc6 Re4 30. a3 Bh7 31. Rd1 Rc4 32. b4 Be4 33.
Kg1 Ne3 34. Re1 Bxc6 35. Rxe3 a5 36. bxa5 Rxc5 37. Bxc7 Rc1+ 38. Kf2 Rc2+ 39.
Re2 Rxe2+ 40. Kxe2 Bxg2 {adjudication 1/2-1/2 (105) Stockfish 202003092246
(3969)-LCZero v0.24-sv-t60-3010 (3958) https://tcec-chess.com/#season 2020})
17. h3 Rd7 18. Bg1 a6 19. a3 (19. Rd2 Qd8 20. Qd1 Na5 21. b3 Nc6 22. a3 Rff7
23. Bf2 Rf8 24. Bg1 Rff7 25. a4 Nc8 26. Re1 Nd6 27. Bf1 Rfe7 28. c5 Nf7 29. Ne4
Bxe4 30. Rxe4 Ng5 31. Nxg5 Bxg5 32. Rd3 Bf6 33. Rd2 Bg5 34. Rd3 Bf6 35. Qd2 e5
36. dxe5 Nxe5 37. Rdd4 Qe8 38. Qf2 Rxd4 39. Rxd4 c6 40. Qf5 Nd7 41. Rb4 Ne5 42.
Rd4 Nd7 43. Rb4 Ne5 44. Re4 Qf7 45. Bd4 Qe8 46. Bg1 Qf7 47. b4 g6 48. Qf2 Kg7
49. Qe1 g5 50. Be2 Ng6 51. Bg4 Qc4 52. Rxe7+ Nxe7 53. Bh2 Qc3 54. Qe4 Qa1+ 55.
Bg1 Qe5 56. Qb1 Qf4 57. Bh2 Qe3 58. Bd6 Bd4 59. Qf1 Qe4 60. Kh2 Be5+ 61. Kh1
Bf6 62. b5 axb5 63. axb5 cxb5 64. Qxb5 Qe1+ 65. Kh2 Bd4 66. Qe2 Qxe2 67. Bxe2
Nf5 68. g4 Nxd6 69. cxd6 Be5+ 70. Kg2 Bxd6 {adjudication 1/2-1/2 (117) LCZero
v0.24-sv-t60-3010 (3958)-Stockfish 202003092246 (3969) https://tcec-chess.com/
#season 2020}) 19... Qd8 20. Qe3 Re8 21. Qf4 Bg6 22. Qg4 Bf5 23. Qh5 Bc2 24.
Rd2 Bh7 25. b4 Rf8 26. Qg4 Qe8 27. Rfd1 Nc8 28. Ne5 Rd8 29. Bf3 Bxe5 30. Bxc6
Qxc6 31. dxe5 Rxd2 32. Rxd2 Bf5 33. Qf4 Ne7 34. a4 b6 35. Kh2 Qe8 36. Qf3 Bg6
37. Qb7 Qc8 38. Qxc8 Rxc8 39. c5 bxc5 40. b5 axb5 41. Bxc5 Nc6 42. axb5 Nxe5
43. Rd4 Kg8 44. Be7 Nf7 45. Rd7 Nd6 46. Bxd6 cxd6 47. b6 Rxc3 48. Rd8+ Kf7 49.
b7 Rb3 50. b8=Q Rxb8 51. Rxb8 {[%eval 5198,0] 1/2-1/2, Komodo 12.1.1 3475 -
Stockfish 180614 3519, TCEC Season 12 (06) Superfinal, https://tcec-chess.com/
#season (34.2),}) (16. h3 Rd7 17. Qe1 Kh8 18. Bg1 Qd8 19. c5 Nd5 20. Bb5 Rdf7
21. Ne4 Bh7 22. Rd2 Be7 23. Bh2 Na5 24. Re2 Nc6 25. Rd2 Na5 26. Re2 Nc6 27.
Bxc6 bxc6 28. Rff2 Bh4 29. Bg3 Bxg3 30. Nxg3 Rxf3 31. Rxf3 Rxf3 32. gxf3 Qh4
33. Rxe6 Qxh3+ 34. Kg1 Nf4 35. Re8+ Bg8 36. Qf2 Qh4 37. Qh2 Qf6 38. Kh1 Qxd4
39. Ne2 Qd1+ 40. Qg1 Qd5 41. Qe3 Qh5+ 42. Kg1 Nxe2+ 43. Qxe2 Qg5+ 44. Kh1 Qc1+
45. Kh2 Qf4+ 46. Kh3 Qf5+ 47. Kg3 Qg5+ {adjudication 1/2-1/2 (157) LCZero v0.
25.1-sv-t60-3010 (3809)-Stockfish 202005232210 (3796) https://tcec-chess.com/
#season 2020}) 16... Qb4 $146 (16... Rd7 17. Qc1 Re8 18. Rd2 Qd8 19. Rfd1 Kh8
20. b3 Bh7 21. Bg1 Nc8 22. d5 exd5 23. Nxd5 Be4 24. Nxf6 Rxd2 25. Nxd2 Bxg2+
26. Kxg2 Rxe2+ 27. Kf1 Rxd2 28. Rxd2 Qxf6+ 29. Rf2 Qd8 30. Qd2 Qe8 31. Qf4 Kg8
32. Qxc7 Qe6 33. Qg3 Nd6 34. Qg4 Qe7 35. Bh2 Nf7 36. Qc8+ Kh7 37. Qc7 Qe4 38.
Qxf7 Qh1+ 39. Ke2 Qe4+ 40. Kf1 Qh1+ 41. Ke2 Qe4+ 42. Kd2 Nd4 43. Qf4 Qc2+ 44.
Ke3 Qc3+ 45. Ke4 Ne6 46. Qf5+ {Robson,R (2669)-Naroditsky, D (2623) Saint
Louis 2021 1-0}) 17. b3 Nc8 18. Qc1 Qe7 19. c5 {[%csl Gc8]} Nb4 20. Bg1 Qd7 21.
Bc4 Ne7 22. Bh2 Ned5 23. a3 Nxc3 24. Qxc3 Nd5 25. Qd2 b5 26. Bd3 a6 27. b4 Qe8
28. Bc2 Bxc2 {[%eval 84,0] with an evaluation of 0.84} *
[Event "#4 - 1.d4 d5"]
[Site "?"]
[Date "2022.07.08"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "D44"]
[Annotator "gmmat"]
[PlyCount "73"]
[EventDate "2022.??.??"]
1. d4 d5 2. c4 c6 {[d=54, 219570Mn]} (2... dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4
Nc6 6. O-O Be6 7. Bb5 Bc5 8. b4 Bb6 9. a4 a6 10. Bxc6+ bxc6 11. a5 Ba7 12. Bb2
Nf6 13. Bxd4 Nxe4 14. Bxa7 Qxd1 15. Rxd1 Rxa7 16. Ne5 {[%cal Gf2f3]} Bd5 17.
Re1 O-O 18. f3 Re8 19. Nd3 {[%csl Gb4,Gc5]} Nf6 20. Rxe8+ Nxe8 21. Na3 Nd6 22.
Nc2 f6 23. Rc1 Nf5 $146 ({Predecessor:} 23... Kf7 24. Nd4 Nc4 25. Nc5 Nd6 26.
h4 h5 27. Kf2 Nb5 28. Nxb5 cxb5 29. g4 g6 30. Re1 c6 31. g5 Kg7 32. gxf6+ Kxf6
33. f4 Kf5 34. Kg3 Kf6 35. Re5 Ba2 36. Kf3 Bd5+ 37. Kf2 Bh1 38. Ke3 Bd5 39. Kd4
Bh1 40. Re8 Kf5 41. Nd3 Rd7+ 42. Ke3 Rf7 43. Ne5 Rf6 44. Rc8 Bg2 45. Rd8 Bh1
46. Rd1 Be4 47. Rg1 {1-0 (47) Dutra,A (2411) -Jones,B (2298) ICCF email 2017})
24. Nc5 Kf7 25. Kf2 h5 26. Ne3 Ne7 27. Re1 h4 28. g3 g5 29. gxh4 gxh4 30. Rc1
Ra8 31. Rd1 f5 32. Rc1 {with a 0.36 evaluation}) (2... e6 3. Nc3 Nf6 (3... c5
4. cxd5 exd5 {[d=57, 189239Mn]} 5. Nf3 Nc6 6. dxc5 {The line that makes the
Tarrasch useless as a winning weapon} d4 7. Na4 Bxc5 8. Nxc5 Qa5+ 9. Bd2 Qxc5
10. Rc1 Qb6 11. e3 Nf6 12. Bc4 dxe3 13. Bxe3 Qb4+ 14. Bd2 Qe7+ 15. Be2 Be6 16.
O-O O-O 17. Re1 Rfe8 18. a3 Qd7 {[diagram]} 19. Bc3 $146 ({Predecessor:} 19.
Be3 Nd5 20. Bd2 {1/2-1/2 (20) Kapila,H-Kaupat,T (1563) ICCF email 2021}) 19...
Qxd1 20. Bxd1 Nd5 21. Bd2 h6 22. Ne5 Nxe5 23. Rxe5 Rac8 24. Re1 Rxc1 25. Bxc1
Rc8 26. Bf3 b6 27. g3 Rc2 28. Be4 Rc8 29. f3 f6 30. Kf2 Kf7 31. g4 Ne7 32. Bb1
Rd8 33. h4 Nc6 34. Kg3 Bb3 35. Be3 Rd1 36. Rxd1 {[%eval 35,0]}) (3... c6 4. e3
{[d=52, 126149Mn]} (4. Nf3 {is Komodo Dragon's main line for quite a file
until it switches to 4.e3} Nf6 (4... dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 a5 8. axb5
Bxc3 9. Bxc3 cxb5 10. b3 Bb7 11. bxc4 b4 12. Bb2 Nf6 13. Bd3 O-O 14. O-O Qc7
15. Re1 Be4 16. Bf1 Nbd7 17. Nd2 Bb7 {[#]} 18. h3 $146 ({Predecessor:} 18. e4
e5 19. f4 exd4 20. e5 Ne8 21. Bxd4 Nc5 22. Nb3 Ne6 23. Be3 f5 24. c5 a4 25. Nd4
Nxd4 26. Qxd4 Qc6 27. Qxb4 Nc7 28. Reb1 Rfb8 29. Qc4+ Kf8 30. Rb6 Qe4 31. c6
Qxe3+ {0-1 (31) Meier,G (2558) -Tregubov,P (2609) Merida 2007}) 18... Ne4 19.
Nxe4 Bxe4 20. f3 Bb7 21. e4 Rfd8 22. d5 e5 23. Qd2 Nc5 24. Qf2 Nb3 25. f4 {
[%csl Gc4,Gd5,Ge4][%cal Gb7c6,Ga5a4]} exf4 26. Bxg7 Kxg7 27. Qb2+ Kg8 28. Qxb3
Qe5 29. Kh1 Rdc8 30. Qc2 a4 31. Rxa4 Bxd5 {[%csl Gc4,Ge4,Gc2,Ge1]} 32. Rxb4 Bc6
33. Qb2 Qxb2 34. Rxb2 {[%eval 39,0]}) 5. Bg5 {transposing back into the
standard Semi-Slav is Komodo Dragon's expectation. However, the main idea of
this move order is to meet 4.Nf3 with the risky Noteboom (4...dxc4!)!}) (4. e4
dxe4 5. Nxe4 Bb4+ 6. Bd2 (6. Nc3 {is Komodo's preference at around 100000Mn!})
6... Qxd4 7. Bxb4 Qxe4+ 8. Ne2 {This leads to a well-known line which leads to
a small but manageable white endgame advantage. This is Komodo Dragon's
preference above 8.Be2 which is sharper and thought to give more winning
chances} (8. Be2 {[d=61, 212463Mn]} Na6 9. Bd6 (9. Ba5 {is the move that
AlphaZero favoured consistently} b6 10. Qd6 Bd7 11. Bc3 f6 12. Nf3 Nh6 13. Rd1
(13. Nd2 {was played by AlphaZero many times against Stockfish 8 but made
little headway.}) 13... Rd8 14. Qa3 {[%csl Ga6][%cal Gh6f7]} Bc8 15. Nd2 Qf4
16. Bh5+ Nf7 17. O-O c5 18. Qa4+ Ke7 19. Rfe1 Rhe8 {[#]} 20. Re3 $146 ({
Predecessor:} 20. Qc2 Qh6 21. Bf3 Kf8 22. a3 e5 23. Qa4 Ng5 24. Bc6 Qg6 25. Kh1
Re7 26. Ne4 Rxd1 27. Rxd1 Nf7 28. Nd6 Nxd6 29. Rxd6 Nc7 30. h3 Ne6 31. Qd1 Kf7
32. Bd5 Kf8 33. Bc6 Kf7 34. Bd5 {1/2-1/2 (34) Turgut,T (2612)-Privara, I (2493)
ICCF email 2017}) 20... Kf8 21. h3 Re7 22. Ne4 Rxd1+ 23. Qxd1 Rd7 24. Qa4 Nb8
25. Nd2 Qd6 26. b4 Bb7 27. Be2 e5 28. bxc5 bxc5 29. Nb3 Na6 30. Rd3 Qc6 31.
Qxc6 Bxc6 32. Rxd7 Bxd7 33. Nxc5 Nxc5 34. Bb4 a6 35. Bxc5+ Ke8 36. f3 Nd8 37.
Bb6 Ne6 38. Kf2 Ke7 39. Bd3 Nf4 40. Bxh7 Be6 {[%eval 15,0] with an evaluation
of 0.15}) 9... Qxg2 10. Qd2 Nf6 (10... Qxh1 11. O-O-O {[%cal Ge2f3]}) 11. Bf3
Qg6 12. O-O-O e5 13. Bxe5 Be6 14. Ne2 Qf5 15. Bf4 Qc5 16. Nc3 Qxc4 17. Be2 Qb4
{[#]} 18. Rhg1 $146 ({Predecessor:} 18. Bxa6 bxa6 19. Bd6 Qb7 20. Bc5 Nd5 21.
Ne4 O-O-O 22. Nd6+ Rxd6 23. Bxd6 Rd8 24. Ba3 Bg4 25. Rde1 Bf5 26. Re5 Bg6 27.
Qd4 f6 28. Re2 Qc7 29. Rd2 Re8 30. b3 Kb7 31. f3 Re3 32. Rf1 Qc8 33. Kb2 Qh3
34. Rc1 Qf5 35. Bf8 Re6 36. Bxg7 Qxf3 37. Qc5 Bd3 38. Bf8 Qe3 39. Qa5 Qxd2+ 40.
Qxd2 Re2 41. Qxe2 Bxe2 42. Rg1 Bd3 43. Rg7+ Kb6 44. Bd6 Bg6 45. b4 a5 46. bxa5+
Kxa5 47. Rxa7+ Kb6 {Yoo,C (2548) -Burke,J (2579) Saint Louis 2022 1-0 (62)})
18... Nd5 19. Nxd5 Qxd2+ 20. Bxd2 cxd5 21. Bxa6 bxa6 22. Rxg7 Rc8+ 23. Bc3 Ke7
24. Rd4 Rhg8 25. Rxh7 Rg2 26. Kd2 Rxf2+ 27. Ke3 Rf1 28. Rh5 Kd7 29. Ra4 Rg8 30.
Rhh4 Re8 31. Rh8 Rxh8 32. Bxh8 Rh1 33. h4 Kc6 34. a3 Rh3+ 35. Kf2 d4 36. Rxd4
Rh2+ 37. Kg3 Rxb2 38. Rd3 Rb3 39. Rxb3 Bxb3 {and the game is completely equal})
8... Na6 9. Bf8 Ne7 (9... Kxf8 10. Qd8#) 10. Bxg7 Nb4 11. Qd6 Nd3+ 12. Kd2 Nf5
13. Qxd3 Qxd3+ 14. Kxd3 Nxg7 15. Kc3 b6 16. g4 Bb7 17. Bg2 O-O-O 18. Rad1 c5
19. Bxb7+ Kxb7 20. h4 Kc7 $146 ({Predecessor:} 20... Kc6 21. Ng3 {1/2-1/2 (21)
Szczepanski,Z (2413)-Glatthaar,M (2508) LSS email 2020}) 21. h5 Rxd1 22. Rxd1
Ne8 23. f3 Rg8 24. Nf4 Nd6 25. a4 a5 26. b3 Kd7 27. Rd3 Ke7 28. Kd2 Nc8 29. Ne2
Na7 30. Ke3 Nc6 31. Nc3 Nd4 32. Nb5 Nxb5 33. axb5 h6 34. Rd2 Rg5 35. Kf4 f5 {
with a modest 0.19 evaluation}) 4... Nf6 5. Nf3 a6 6. b3 Bb4 7. Bd2 Nbd7 8. Bd3
O-O 9. O-O Bd6 {[%csl Gb2,Gd3][%cal Gd6b4,Gb4d6,Gc6c5]} (9... Qe7 10. a3) 10.
Re1 h6 11. h3 Re8 12. Qc2 e5 13. cxd5 cxd5 14. e4 dxe4 15. Nxe4 Nxe4 16. Bxe4
Nf6 $146 ({Predecessor:} 16... exd4 17. Bh7+ Kh8 18. Rxe8+ Qxe8 19. Re1 Qd8 20.
Bf5 d3 21. Qxd3 Nf6 22. Bc3 Bxf5 23. Qxf5 Bf8 24. Bxf6 Qxf6 25. Qxf6 gxf6 26.
Rd1 b5 27. Nh4 Kg7 28. g4 Rc8 29. Rd2 h5 30. Kg2 hxg4 31. hxg4 Bb4 32. Re2 Kf8
33. Nf5 Rc1 34. Kf3 Rc3+ 35. Ke4 Rc8 36. Kd5 Rc5+ 37. Kd4 Rc8 38. Kd5 Rc5+ 39.
Ke4 Re5+ 40. Kf3 Rc5 41. Kf4 Rc8 42. Ne3 Bc5 43. Nd5 Kg7 44. Kf5 Bd4 45. Rd2
Ba1 46. Ne3 {Gelfand,B (2717)-Dreev,A (2694) Khanty-Mansiysk 2005 1-0 (68)})
17. dxe5 Bxe5 18. Bxb7 Bxb7 19. Nxe5 Qd5 20. Nf3 Qh5 21. Rxe8+ Rxe8 22. Ne1 Re2
23. Qd1 Ne4 24. Be3 Nc3 25. Qd8+ Kh7 26. Qd3+ Qg6 27. Qxg6+ Kxg6 28. Bd4 Nb5
29. Bc5 Nc3 30. a3 Rb2 31. b4 Rb1 32. Rxb1 Nxb1 33. a4 Nc3 34. a5 {with a 0.32
evaluation}) (3... Be7 {[%cal Gc4d5,Ge6d5,Gc1g5] [d=58, 250543Mn]} 4. Bf4 {
is Komodo Dragon's main move, transposing into the Bf4 QGD} (4. cxd5 {was the
move I always played [d=51, 223062Mn]} exd5 5. Bf4 c6 6. e3 Bf5 7. g4 Be6 8. h4
Nd7 (8... Bxh4 9. Qb3) 9. Qb3 b5 {[%cal Ga7a5,Ga5a4]} 10. g5 h6 11. Nf3 Bg4 12.
Nh2 hxg5 $146 ({Predecessor:} 12... Be6 13. a4 b4 14. Ne2 Rc8 15. Qd1 hxg5 16.
hxg5 Qa5 17. Bg2 Bd8 18. Nc1 Ne7 19. Nb3 Qb6 20. a5 Qb7 21. Nf3 Rxh1+ 22. Bxh1
Ng6 23. Bg3 Bc7 24. Bxc7 Qxc7 25. Rc1 Ke7 26. Qd2 Qd6 27. Nc5 Nxc5 28. dxc5 Qb8
29. Qd4 Rh8 30. Kd2 Kf8 31. Bg2 Bf5 32. Ra1 {1/2-1/2 (32) Lenderman,A (2621)
-Narayanan,S (2320) Charlotte 2021}) 13. hxg5 Bf5 14. a4 bxa4 15. Nxa4 a5 16.
O-O-O Bg4 17. Nxg4 Rxh1 18. g6 Ngf6 19. gxf7+ Kxf7 20. Bd3 Rxd1+ 21. Qxd1 Nxg4
22. Qxg4 Nf8 23. e4 Qd7 24. Qf3 Rd8 25. Bc7+ Ke8 26. Bxd8 Kxd8 27. Nc3 dxe4 28.
Bxe4 Ne6 29. d5 cxd5 30. Nxd5 Nc5 31. Kb1 Nxe4 32. Qxe4 Bb4 33. Nxb4 {with a 0.
30 evaluation}) 4... Nf6 5. e3 O-O 6. Nf3 Nbd7 7. c5 c6 8. a3 b6 9. b4 a5 10.
Be2 Ba6 11. O-O Qc8 12. h3 Qb7 13. Qc2 Bxe2 14. Qxe2 Ra7 15. Rfc1 axb4 16. axb4
Rfa8 17. Rab1 h6 18. Bh2 Ra3 19. Qd1 R3a7 20. Ra1 Ra6 21. Rxa6 Qxa6 22. Rb1 Bd8
23. Qc1 Be7 24. Bg3 Bd8 25. Qb2 Qa7 26. Bh2 Qb7 27. Bf4 Qa6 28. Bd6 Ne8 29. Bh2
Nef6 30. Bf4 Qa7 31. Bd6 Ne8 32. Bh2 Nef6 33. Qc1 Qa6 {[%eval 37,0] with an
evaluation of}) 4. cxd5 exd5 5. Bg5 {[%cal Gf2f3,Ge2e4]} c6 {d=60 295343Mn} (
5... Be7 {Not Komodo Dragon's main move} 6. e3 h6 7. Bh4 O-O 8. Bd3 c6 9. Nge2
Re8 10. Qc2 {[%cal Gb8c7,Gb8d7,Gd7f8,Ge7f8,Gf8g6]} Nbd7 11. O-O {[%cal Gf6h5]}
Nf8 12. a3 a5 13. h3 Ne6 {[%cal Gb7b6,Gc8a6] [diagram]} 14. Rac1 $146 ({
Relevant:} 14. Kh1 b6 15. Rad1 Ba6 16. Ng1 Bxd3 17. Qxd3 Nd7 18. Bxe7 Qxe7 19.
Nf3 b5 20. Rc1 Nb6 21. Ne5 Qd6 22. Qf5 Nd8 23. Nd3 Nc4 24. a4 b4 25. Nb1 b3 26.
Rfd1 g6 27. Qf3 Ne6 28. h4 Rac8 29. Nd2 Nxd2 30. Rxd2 c5 31. dxc5 Nxc5 32. Nxc5
Rxc5 33. Rxc5 Qxc5 34. Qxd5 Qxd5 35. Rxd5 Rc8 36. Rb5 Rc2 37. Rxb3 Rxf2 38. Rb5
Re2 39. Kg1 h5 40. Kf1 Rc2 41. b3 Rb2 42. Kg1 Kg7 43. Kh2 f6 {Shankland,S
(2704)-Predke,A (2682) Berlin 2022 1/2-1/2}) 14... Nh5 15. Bxe7 Qxe7 16. Ng3
Nxg3 17. fxg3 Nf8 18. Rce1 Bd7 19. Kh2 Be6 20. Rf3 Qd6 21. Kg1 Re7 22. g4 Rae8
23. Qf2 Nh7 24. Rf1 Ng5 25. Rg3 Nh7 26. Ne2 Bd7 27. Bxh7+ Kxh7 28. Nf4 f6 29.
h4 Rf7 30. Nh5 Rff8 31. Qc2+ Re4 32. Rf4 Qe7 33. Rxe4 Qxe4 34. Qxe4+ dxe4 35.
g5 fxg5 36. hxg5 {with a 0.33 evaluation.}) 6. e3 (6. Qc2) 6... Bf5 7. Qf3 Bg6
8. Bxf6 Qxf6 9. Qxf6 gxf6 10. h4 h5 11. Kd2 Bd6 12. Nh3 a5 $146 ({Predecessor:
} 12... Nd7 13. Bd3 Nf8 14. Nf4 Rh6 15. f3 Bxd3 16. Kxd3 Ne6 17. Nce2 f5 18.
Nxe6 fxe6 19. Rag1 Be7 20. g4 hxg4 21. fxg4 fxg4 22. Rxg4 Kd7 23. Rg7 Kd6 24.
h5 Rah8 25. Nf4 R8h7 26. Rhg1 Rxg7 27. Rxg7 Bf6 28. Rxb7 e5 29. dxe5+ Bxe5 30.
Ng6 Rxh5 31. Nxe5 Kxe5 32. Rxa7 c5 33. a4 c4+ 34. Kc3 Rh3 35. Kb4 Rh2 36. Kc3
Rh3 37. Re7+ Kd6 38. Re8 Kc5 39. Re5 Rh1 40. a5 Kd6 41. Re8 Rc1+ 42. Kd2 {
Tomczak,M (2383)-Musial,T (2078) Chrzanow 2018 1-0 (62)}) 13. Bd3 Nd7 14. Rhd1
a4 15. Ke2 Ke7 16. Rab1 Nf8 17. g3 Ne6 18. Kf3 Rhb8 19. Ra1 Ra5 20. Rac1 Raa8
21. Ne2 Re8 22. Nhf4 Rg8 23. a3 Kd7 24. Rd2 Ke7 25. Re1 Bc7 26. Rc2 Kd7 27. Rd1
Bd6 28. Rcc1 Bc7 29. Rd2 Bd6 30. Nh3 Rge8 31. Nc3 Reb8 32. Bc2 b5 33. Na2 Ra6
34. Nb4 Bxb4 35. axb4 {with a 0.30 evaluation}) (2... e5 {[d=45, 31756Mn]} 3.
dxe5 Ne7 {A line played by Magnus in blitz! The engines prefer this to the
previously universal 3...d4!} 4. f4 $146 ({Relevant:} 4. Nf3 Nbc6 5. Nbd2 dxc4
6. e3 Ng6 7. Qa4 Bd7 8. e6 Bxe6 9. Bxc4 Bxc4 10. Qxc4 Be7 11. O-O O-O 12. Qb5
Rb8 13. Ne4 Qd7 14. Bd2 Nce5 15. Qxd7 Nxd7 16. Rac1 c5 17. Rfd1 Rfd8 18. Bc3
Ngf8 19. Kf1 Ne6 20. b3 f6 21. Ke2 Kf7 22. g4 Nb6 23. Ba5 Rxd1 24. Rxd1 Na8 25.
h4 b6 26. Bc3 Rd8 27. Rxd8 Nxd8 28. g5 Ne6 29. gxf6 gxf6 30. Ng3 Nac7 31. Nf5
Nd5 32. Bd2 Bf8 33. a4 a6 {Shankland,S (2691)-Dubov,D (2710) chess24.com INT
2021 0-1 (71)}) 4... Nbc6 5. Nf3 Be6 6. Bd2 d4 7. Na3 Qd7 8. Qb3 O-O-O 9. O-O-O
f6 10. Nc2 fxe5 11. fxe5 Ng6 12. Bg5 Be7 13. e3 Bxg5 14. Nxg5 Bg4 15. Nf3 Ncxe5
16. exd4 Nxf3 17. gxf3 Bh5 18. d5 c5 19. Rg1 Qd6 20. Bd3 Rhf8 21. Be4 Rd7 22.
Kb1 Ne5 23. Ne1 Rf4 24. Nd3 Rxf3 25. Bxf3 Nxf3 26. Rh1 Nd4 27. Qc3 Bxd1 {
with a 0.87 evaluation}) (2... Nc6 3. Nf3 {Komodo's choice after [d=49,
147112Mn]} e6 (3... Bg4 {[d=41, 19136Mn]} 4. cxd5 Bxf3 5. gxf3 Qxd5 6. e3 e5 7.
Nc3 Bb4 8. Bd2 Bxc3 9. bxc3 Qd6 10. Qb3 Nge7 11. Qxb7 O-O 12. Qa6 Rab8 13. Rd1
{[#]} h6 $146 ({Predecessor:} 13... Nd5 14. Be2 Rb6 15. Qd3 Rd8 16. O-O Rb2 17.
Rfe1 h6 18. e4 Nb6 19. d5 Ne7 20. Ra1 Ng6 21. Reb1 Qa3 22. Rxb2 Qxb2 23. Rd1
Qxa2 24. Qb1 Qa4 25. Qb5 Rb8 26. Rb1 Qxb5 27. Rxb5 Kf8 28. c4 Nd7 29. Rxb8+
Nxb8 30. Be3 a5 31. Ba7 Nd7 32. c5 Ke8 33. c6 Nf6 34. Bd1 Kd8 35. Be3 Nf4 36.
Bd2 Ne8 37. Bxa5 Nd6 38. Kf1 Nb5 39. Ke1 Nd6 40. Be2 g6 41. Bc3 f6 42. Bf1 g5
43. Kd1 {Caron,S (2440)-Alvarez Villar,H (2357) ICCF email 2019 1-0 (65)}) 14.
h4 exd4 15. cxd4 Rb2 16. Bd3 Nb4 17. Bxb4 Qxb4+ 18. Kf1 Nd5 19. Rg1 Qd6 20.
Qxd6 cxd6 21. a4 Rc8 22. Rb1 Rxb1+ 23. Bxb1 Nb6 24. Kg2 Nxa4 25. Be4 Rc7 26.
Ra1 Nb6 27. Kg3 Kf8 28. f4 {is very pleasant for White}) 4. e3 {is Dragon's
main line}) 3. Nc3 (3. Nf3 Nf6 4. e3) 3... Nf6 4. Nf3 e6 (4... dxc4 {[d=54,
127751Mn]} 5. a4 Bf5 6. Ne5 (6. e3) 6... Nbd7 7. Nxc4 Qc7 {The old line that
Alekhine and Euwe fought out revitalised by Morozevich's 11...g5 is Komodo's
best play line.} 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 {[%cal Gf7f6]} g5
12. Ne3 gxf4 13. Nxf5 O-O-O 14. O-O fxg3 15. hxg3 a5 16. Qc2 h5 17. Rfc1 {[#]}
Nf6 $146 ({Predecessor:} 17... Nc5 18. Rab1 Na6 19. Qe4 Nc5 20. Qc2 Na6 21. Qe4
Nc5 22. Qc2 Na6 23. Qe4 Nc5 24. Qc2 Na6 {1/2-1/2 (24) Kreisl,R (2410)-Bulski,K
(2538) Warsaw 2013}) 18. Nb5 Qb6 19. e3 Kb8 20. Nbd4 Bb4 21. Rd1 Nfd7 22. Nb3
Nf6 23. Rac1 Rxd1+ 24. Rxd1 Nfg4 25. Nbd4 Rd8 26. Nf3 Rxd1+ 27. Qxd1 Nc4 28. b3
Qc5 29. Qd3 Nce5 30. Nxe5 Nxe5 31. Qe4 Ka7 32. Bf1 Kb6 33. Kg2 Qd5 34. Qxd5
cxd5 35. Be2 {with an edge for White}) 5. Bg5 dxc4 {This isn't Dragon's first
move, but after a massive amount of analysis - d=62 2093871Mn - Dragon plumps
for a surprising choice: Smyslov's 10...Be7!} (5... Nbd7 {The standard
"cowardly" way out when Black is not prepared for a Moscow Gambit or Botvinnik
system [d=56, 495446Mn.]} 6. e3 Qa5 (6... Be7 7. Bd3 h6 8. Bh4 dxc4 9. Bxc4 b5
10. Bd3 a6 11. Bxf6 Nxf6 12. Ne4 Bb7 13. O-O Nd7 14. Rc1 Rc8 15. Nc5 Nxc5 16.
dxc5 {was one typical AlphaZero-Stockfish 8 scenario which AlphaZero won for
White} a5 17. a3 a4 18. e4 g5 19. Qe2 g4 20. Ne5 h5 21. f4 Bf6 22. Qe3 Qc7 23.
Ng6 Bxb2 24. Rb1 fxg6 25. Rxb2 Rd8 26. e5 Kf7 27. Qe4 Rh6 28. Rbb1 Qe7 29. Qe3
Rhh8 30. Rbc1 Rd7 31. Bb1 Rhd8 32. h3 Rd2 33. hxg4 hxg4 34. Qg3 Rg8 35. Qxg4
Qd8 36. Rcd1 Qd4+ 37. Kh2 Rh8+ 38. Kg3 Qe3+ 39. Qf3 Qxf3+ 40. Kxf3 Rhd8 41.
Rxd2 Rxd2 42. Rh1 Kg7 43. Be4 Ba6 44. Rb1 b4 45. Rxb4 Bb5 46. Kg4 Kh6 47. Kh4
Rd1 48. Rb1 Rd4 49. Re1 Bd3 50. Bxd3 Rxd3 51. Ra1 Rd5 52. Kg4 g5 53. fxg5+ Kg7
54. Kh5 Rxc5 55. Rd1 Rd5 56. Rb1 Rd7 57. Rb4 Ra7 58. Rc4 Ra6 59. Rc5 {1-0,
AlphaZero - Stockfish 8, 2018}) 7. cxd5 Nxd5 8. Qd2 Bb4 9. Rc1 b6 10. e4 Nxc3
11. bxc3 Ba3 12. Rd1 O-O 13. Bd3 Ba6 14. O-O Bxd3 15. Qxd3 h6 $146 ({
Predecessor:} 15... Rfe8 16. e5 c5 17. d5 exd5 18. Qxd5 Nf8 19. Be7 Ne6 20. Ng5
Nxg5 21. Bxg5 Bb2 22. Bd8 Rb8 23. Qd6 Ra8 24. Qd5 Rb8 25. Qd7 Rf8 26. e6 fxe6
27. Qxe6+ Kh8 28. Qd6 Rbxd8 29. Qxd8 Rg8 30. Rfe1 Bxc3 31. Re8 Qxa2 32. Rxg8+
Qxg8 33. Qe7 Bd4 34. Rd3 h6 35. Rf3 Bf6 36. Qd7 Qc4 37. g3 Qc2 38. Qe8+ Kh7 39.
Rxf6 gxf6 40. Qf7+ Kh8 41. Qf8+ {1/2-1/2 (41) Steflitsch,E (2358)-Rogic,D
(2566) Austria 2014}) 16. Bf4 Rac8 {[%cal Gc6c5]} 17. Nd2 Be7 18. Nc4 Qa6 19.
Bd6 Bxd6 20. Nxd6 Qxd3 21. Rxd3 Rcd8 22. f3 Nf6 23. Nc4 c5 24. Rfd1 cxd4 25.
cxd4 Rd7 26. Ne3 Rc7 27. Kf2 Rfc8 28. g3 h5 29. h4 Kf8 30. a4 Rc3 31. Ke2 Ke7
32. Rb1 Ne8 33. Rxc3 Rxc3 34. a5 bxa5 35. Rb7+ Rc7 {[%eval 34,0] with an
evaluation of 0.34}) (5... h6 6. Bh4 (6. Bxf6 {Not Dragon's main move, However,
after forcing Dragon to play 6.Bxf6, this line is the result after [d=51
115564Mn]} Qxf6 7. e3 g6 8. Bd3 Bg7 9. O-O dxc4 10. Bxc4 Nd7 11. Qc2 Qe7 12.
Ne4 O-O 13. Bb3 e5 14. Ng3 Kh8 15. Rac1 f5 16. dxe5 $146 ({Predecessor:} 16. h3
e4 17. Nd2 Kh7 18. Ne2 Nf6 19. Rfd1 Rd8 20. a3 Be6 21. Bxe6 Qxe6 22. Nf4 Qe7
23. Qc5 Qxc5 24. dxc5 Nd5 25. Ne6 Rd7 26. Nc4 Re8 27. Nxg7 Kxg7 28. Rd4 Kf6 29.
Rc2 Ke6 30. Na5 h5 31. Rcd2 h4 32. b4 g5 33. f3 exf3 34. gxf3 Rc7 35. Kf2 Kf6
36. b5 Nxe3 37. Rd6+ Kg7 38. Rd7+ Rxd7 39. Rxd7+ Kf6 40. Rd6+ Kg7 41. bxc6 bxc6
42. Rd7+ Kf6 43. Rd6+ Kg7 44. Nxc6 g4 45. fxg4 fxg4 {Acevedo Villalba,A (2558)
-Hamarat,T (2598) ICCF email 2012 1/2-1/2}) 16... Nxe5 17. Nxe5 Qxe5 18. Ne2 a5
19. Nf4 Qe8 {[%cal Gg6g5]} 20. Nd3 g5 21. Rfe1 Qg6 22. Qd1 Be6 23. h4 Rfe8 24.
a4 Bxb3 25. Qxb3 Re7 26. hxg5 hxg5 27. g3 Bf6 28. Kg2 Qg8 29. Qxg8+ Kxg8 30.
Red1 Rd8 31. Nc5 Rxd1 32. Rxd1 Kg7 33. Nb3 Bxb2 34. Nxa5 {[%eval 16,0] with an
evaluation of just}) 6... Be7 {[%cal Gb7b6,Gc8b7,Gc6d5] Dragon's main choice
after [d=54, 219570Mn] Strangely enough we saw quite a few games in this line
in AlphaZero-Stockfish 8 games.} (6... dxc4 {[d=60, 716434Mn]} 7. e4 g5 8. Bg3
b5 {[%cal Gh2h4]} 9. Ne5 (9. Be2 {[%emt 0:00:08] At a lower depth - [d=50,
60814Mn] - Dragon prefers AlphaZero's favourite h4 idea with which it won many
fine games against Stockfish} Bb7 10. h4 g4 11. Ne5 Nbd7 12. Nxd7 Qxd7 13. Be5
Qe7 14. b3 cxb3 15. axb3 Bg7 16. O-O a6 {[%cal Gc6c5,Ge8g8]} 17. Qc1 {[%cal
Gf6h5]} c5 $146 ({Predecessor:} 17... Nh5 18. Bxg7 Nxg7 19. Bxg4 Qxh4 20. Bf3
Qg5 21. Qa3 Qe7 22. Qa5 Qd8 23. Qb4 Qe7 24. Qa5 {1/2-1/2 (24) Kupsys,A (2530)
-Kribben,M (2644) ICCF email 2020}) 18. Nxb5 axb5 19. Bxb5+ Kf8 20. Rxa8+ Bxa8
21. dxc5 {[%cal Ge5d6]} Nxe4 {[%csl Gd6]} 22. Qa1 {[%csl Ga8,Gg7]} Bxe5 23.
Qxa8+ Kg7 24. Qxe4 Qxc5 25. Qxg4+ Kf6 26. Be2 Rd8 27. b4 Qd4 28. Qf3+ Qf4 29.
Qxf4+ Bxf4 30. g3 Be5 31. f4 Bc3 32. b5 Rd2 33. Kf2 Rb2 34. Kf3 Bd4 35. Rd1
Rb3+ 36. Rd3 {with a 0.21 evaluation}) 9... Nbd7 {[%cal Ge5c6]} 10. Be2 Bb7 11.
O-O Bg7 12. Nxd7 Nxd7 13. Bd6 a6 14. a4 Bf8 15. Bxf8 Kxf8 16. e5 c5 17. axb5
axb5 18. dxc5 Qc7 19. Qd6+ Qxd6 20. exd6 b4 21. Rxa8+ Bxa8 22. Na4 Bc6 $146 {
[%csl Ga4,Gc5]} ({Predecessor:} 22... Kg7 23. Ra1 Kf6 24. Nb6 Nxb6 {1/2-1/2
(24) Oliveira,M (2454)-Szczepanski, Z (2430) ICCF email 2020}) 23. Ra1 Kg7 24.
Bf3 Bxa4 25. Rxa4 Nxc5 26. Rxb4 Nd3 27. Rxc4 Nxb2 28. Rd4 Kf6 29. Be2 Rb8 30.
Bb5 Rxb5 31. d7 Rb8 32. d8=Q+ Rxd8 33. Rxd8 Nc4 34. g3 Ne5 35. Kg2 Kg7 36. Rb8
Nc6 37. Rb1 Ne5 38. h3 {with a 0.19 evaluation.}) 7. e3 O-O {[%cal Gf1d3]} 8.
Qc2 (8. Bd3 {was AlphaZero's inveterate choice}) 8... b6 ({Relevant:} 8... Nbd7
9. a3 a6 10. Rd1 b5 11. cxd5 cxd5 12. Bd3 Bb7 13. O-O Rc8 14. Rc1 g5 15. Bg3
Ne4 16. Qb3 Nxg3 17. hxg3 f5 18. Ne2 Bd6 19. Rxc8 Qxc8 20. a4 b4 21. a5 Qc7 22.
Qa4 Bc6 23. Qa2 Qb7 24. Qb3 Rc8 25. Rc1 Kg7 26. Qd1 Rc7 27. Ra1 Bb5 28. Nc1 g4
29. Ne1 Bc4 30. Ne2 Kf7 31. b3 Bb5 32. Bxb5 Qxb5 33. Nd3 Ke7 34. Qd2 Nf6 35. f3
h5 36. Kf2 Rc8 37. Ra4 Rb8 38. Nef4 {Gukesh,D (2659)-Sanal,V (2575) Sharjah
2022 1-0 (64)}) 9. Rc1 Bb7 10. cxd5 cxd5 {[#]} 11. Bd3 $146 ({Predecessor:} 11.
Be2 Nbd7 12. O-O a6 13. Qb1 b5 14. Rc2 Nb6 15. b3 Rc8 16. Ne5 Nfd7 17. Bxe7
Qxe7 18. Nxd7 Qxd7 19. Rfc1 Qd6 20. a4 b4 21. Nd1 Rxc2 22. Rxc2 e5 23. dxe5
Qxe5 24. Qb2 Qd6 25. Qd4 Rc8 26. Rxc8+ Nxc8 27. Nb2 a5 28. Bb5 Qc7 29. Nd3 Nd6
30. Qc5 Qd8 31. f3 Qf6 32. Qc7 Qe6 33. Kf2 d4 34. exd4 Nxb5 35. axb5 Qxb3 36.
Ne5 Qd5 37. Nd7 Qxb5 38. Qd8+ Kh7 39. Nf8+ Kg8 40. Ng6+ Kh7 {Badelka,O (2397)
-Shkuran,D (2395) Lvov 2018 1-0}) 11... Nc6 12. Qb1 a6 13. O-O b5 14. Rfd1 Re8
15. a3 Qb6 16. b4 Rec8 17. h3 Qd8 18. Qb2 a5 19. Bxf6 gxf6 20. Bxb5 axb4 21.
axb4 Nxb4 22. Ne1 f5 23. Ra1 Rxa1 24. Rxa1 Bc6 25. Bf1 Ra8 26. Rb1 Qa5 27. g3
Qa3 28. Qd2 Be8 29. Ne2 Bb5 {[%eval 38,0] with an evaluation of 0.38}) (5...
Be7 6. e3 h6 7. Bf4 {[%cal Gg2g4,Gg4g5] was played a number of times in
AlphaZero-Stockfish 8 games leading to some stunning victories for White with
a rapid g4!}) 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Be7 {Komodo
settles on this line very quickly} 11. exf6 Bxf6 12. Bxf6 Qxf6 13. g3 Na6 14.
Bg2 Bb7 15. Ne4 Qe7 16. O-O O-O-O {[%csl Gh2,Ga2][%cal Ga2a4]} 17. h4 c5 18. a4
Rxd4 19. Qe2 b4 20. Rad1 Qc7 21. Rfe1 Rhd8 22. Rc1 Nb8 23. Ng5 Bxg2 24. Kxg2
Qb7+ 25. Kg1 Qd5 26. Nxf7 Rf8 27. Ng5 Rd2 28. Qxc4 Rfxf2 29. Qxc5+ Kb7 30. Qxf2
Rxf2 31. Kxf2 Qd2+ 32. Kf3 Qxb2 {[diagram]} 33. Kg4 $146 ({Predecessor:} 33.
Nxe6 b3 34. h5 Nc6 {1/2-1/2 (34) Gibas,T (2285)-Brzoza,M (2327) ICCF email 2018
}) 33... b3 34. Kh3 Ka8 35. Ne4 Qd4 36. Rb1 Qd3 37. h5 {[%eval 39,0] with an
evaluation of 0.39} *
[Event "#5 - 1.d4 Nf6 2.c4 e6"]
[Site "?"]
[Date "2022.07.08"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "E53"]
[Annotator "gmmat"]
[PlyCount "66"]
[EventDate "2022.??.??"]
1. d4 Nf6 2. c4 {when Komodo Dragon is forced to play this} e6 3. Nc3 (3. g3 {
[d=57, 381701Mn]} Bb4+ (3... c5 {[d=52, 123075Mn]} 4. d5 exd5 5. cxd5 g6 6. Nc3
d6 7. Nf3 Bg7 8. Bg2 O-O 9. O-O Re8 10. Re1 Nbd7 ({Relevant:} 10... Na6 11. h3
Nc7 12. e4 Nd7 13. Bf4 Ne5 14. Nxe5 Rxe5 15. a4 Bd7 16. Qd2 Rb8 17. Be3 Re8 18.
f4 Na6 19. Nb5 Bxb5 20. axb5 Nb4 21. e5 Qb6 22. e6 Qxb5 23. Bf1 Qb6 24. f5 gxf5
25. Bh6 Bd4+ 26. Kh1 fxe6 27. Qg5+ Kh8 28. dxe6 d5 29. e7 Qf6 30. Bb5 Qxg5 31.
Bxg5 Nc2 32. Rac1 Nxe1 33. Rxe1 Kg7 34. Re6 Bxb2 35. Bd7 c4 36. Rd6 c3 37. Bxf5
Ba3 38. Rh6 Bxe7 39. Rxh7+ Kg8 40. Bh6 {Ivanisevic,I (2550)-Sjugirov,S (2696)
Chess.com INT 2022 0-1}) 11. Bf4 Ng4 12. h3 Nge5 13. Ne4 Qe7 $146 ({
Predecessor:} 13... Nf6 14. Bg5 h6 15. Bxf6 Bxf6 16. Nxf6+ Qxf6 17. Nxe5 Qxe5
18. Qd2 Qg5 19. e3 Bf5 20. Rad1 Bd7 21. Kh2 f5 22. h4 Qf6 23. e4 Kg7 24. Bh3
Rad8 25. exf5 Bxf5 26. Bxf5 Qxf5 27. Kg1 b6 28. Qc3+ Qf6 29. Qa3 Rxe1+ 30. Rxe1
Rf8 31. Re2 Rf7 32. Qd3 Re7 33. Rxe7+ Qxe7 34. a4 Qe5 35. Qa6 Qe1+ 36. Kg2 Qe4+
37. Kg1 Qe1+ 38. Kg2 Qe4+ 39. Kg1 {1/2-1/2 (39) Ni,H (2697)-Donchenko,A (2570)
Caleta 2016}) 14. a4 h6 15. Qc2 g5 16. Bd2 Ng6 17. Nc3 Nde5 18. Nxe5 Bxe5 19.
Nb5 b6 20. Na3 Ba6 21. Rab1 Bd4 22. Nc4 Bxc4 23. Qxc4 h5 24. e3 Be5 25. Qd3 h4
26. f4 Bg7 27. g4 gxf4 28. exf4 Qf6 29. Re4 Rxe4 30. Qxe4 Qd4+ 31. Qxd4 {
with a 0.42 evaluation}) 4. Bd2 Be7 {[%cal Gb2b3]} (4... a5 {My move
suggestion [d=51, 71256Mn]} 5. Bg2 d5 6. Nf3 O-O 7. Qc2 Be7 8. O-O c6 9. Rd1
Nbd7 10. Bf4 a4 11. Nbd2 Nh5 12. Be3 {[#]} Nhf6 $146 ({Predecessor:} 12... f5
13. Rac1 Bd6 14. Nf1 Qe7 15. Bg5 Qe8 16. e3 h6 17. Bf4 Be7 18. Ne5 Ndf6 19. Nd3
g5 20. Be5 Nd7 21. Bc7 Nhf6 22. Nd2 Ne4 23. Nf3 Nd6 24. Nfe5 Nf6 25. b3 axb3
26. axb3 Bd7 27. Ra1 Rxa1 28. Rxa1 Qc8 29. Bb6 Nfe4 30. Ng6 Re8 31. Nxe7+ Rxe7
32. f3 Nf6 33. Bc5 Qc7 34. Ra7 Re8 35. Bxd6 Qxd6 36. Rxb7 Qa3 37. Qb2 Qa5 38.
Rb4 Kg7 39. Ra4 Qb6 40. Nc5 Rb8 41. Qa3 Bc8 42. Ra7+ {Mikhalevski, V (2565)
-Vidit,S (2726) Chess.com INT 2020 1-0}) 13. h3 b6 14. Ne5 Bb7 15. Rac1 h6 16.
cxd5 cxd5 17. Nc6 Bxc6 18. Qxc6 Qc8 19. Qb5 Qa6 20. Qxa6 Rxa6 21. Nf3 Raa8 22.
Rc6 Rfc8 23. Rdc1 Rxc6 24. Rxc6 Kf8 25. Ne1 Ne4 26. Nd3 Ke8 27. h4 Nd6 28. Bd2
Kd8 29. e3 Rc8 30. Rxc8+ Kxc8 31. Be1 Nc4 32. Kf1 {with approximate equality})
5. Nf3 O-O 6. Bg2 d5 7. O-O c6 8. Qc2 b6 9. Ne5 Bb7 10. Rd1 Nbd7 11. cxd5 cxd5
12. Nc6 Qe8 13. Nxe7+ Qxe7 14. Qc7 Ba6 15. Nc3 Rfc8 16. Qf4 Nf8 17. Be1 $146 ({
Predecessor:} 17. h4 h6 18. Bf3 Ng6 19. Qe3 Qd8 20. Rac1 Rc4 21. b3 Rc7 22. a4
Rac8 23. Na2 Bb7 24. Rxc7 Rxc7 25. Nc3 Ba6 26. h5 Nf8 27. Rc1 N8h7 28. Qe5 Qc8
29. Na2 Rxc1+ 30. Nxc1 Nd7 31. Qd6 Ng5 32. Bxg5 hxg5 33. Na2 Nf6 34. g4 Qc2 35.
Qb8+ Kh7 36. Qxa7 Bxe2 37. Bxe2 Qxe2 38. Qxf7 Qxg4+ 39. Kf1 Qd1+ 40. Kg2 Nxh5
41. Nc3 Qg4+ 42. Kf1 Qh3+ 43. Ke2 Nf4+ 44. Kd2 Qd3+ {0-1 (46) Vidit,S (2727)
-Robson,R (2673) Chess.com INT 2021}) 17... h6 18. Qe3 Ng6 19. b3 Bb7 20. Rac1
Rc6 21. Nb5 a5 22. f3 Qd7 23. Rxc6 Bxc6 24. Nc3 b5 25. Rc1 b4 26. Nd1 Qb7 27.
Qd2 Bb5 28. Bf1 Qa6 29. Nb2 Rc8 30. Rxc8+ Qxc8 31. Bf2 Qa6 32. h4 Ne7 33. Qc2
h5 {with a 0.20 evaluation}) (3. Nf3 {Normally reached for Dragon via 2.Nf3 e6
3.c4 (though even here it prefers 3.Bf4)} b6 (3... Bb4+ {[d=47, 34293MN]} 4.
Nbd2 (4. Bd2 Be7 {[%cal Gd7d5] is Komodo Dragon's favourite!}) 4... b6 5. a3
Bxd2+ 6. Bxd2 Bb7 7. e3 Ne4 8. Bc1 O-O 9. Bd3 f5 10. O-O Rf6 {[#]} 11. d5 $146
({Predecessor:} 11. Nd2 Rh6 12. Nxe4 fxe4 13. Be2 Qh4 14. h3 Nc6 15. f4 exf3
16. Bxf3 Qg3 17. Kh1 Rf8 18. e4 Rh4 19. Be3 Na5 20. Bg1 Nxc4 21. Rc1 Rxh3+ 22.
gxh3 Qxh3+ 23. Bh2 Ne3 24. Qe2 Nxf1 {0-1 (24) Vragoteris,A (2300)-Rajkovic,D
(2505) Heraklion 1994}) 11... exd5 12. b4 dxc4 13. Bxc4+ d5 14. Bb2 Rd6 15. Ba2
c5 16. Ne5 Nd7 17. f3 Nef6 18. Nxd7 Qxd7 19. bxc5 bxc5 20. Qc2 c4 21. Bd4 Re8
22. Bb1 Bc8 23. a4 Nh5 24. Qd2 a6 25. Bc2 Qf7 26. Rfe1 Rg6 27. Reb1 h6 28. a5
Bd7 {with a 0.48 evaluation}) (3... d5 {[d=56, 327270Mn]} 4. Nc3 Bb4 {The
Ragozin: the AlphaZero favourite.} 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 O-O 8. Rc1 dxc4
9. Bxc4 c5 10. Qb3 cxd4 11. Qxb4 Nc6 12. Qa3 dxc3 13. Qxc3 {[#]} Bd7 $146 ({
Predecessor:} 13... Qxc3+ 14. Rxc3 Bd7 15. Ke2 Rfd8 16. Rd1 Be8 17. Rxd8 {
1/2-1/2 (17) Mamedyarov,S (2800)-Radjabov,T (2724) Geneva 2017}) 14. Qxf6 gxf6
15. Ke2 Rfc8 16. Rhd1 Rc7 17. Ke1 Rac8 18. Be2 Kf8 19. Rc3 Ne7 20. Rxc7 Rxc7
21. Kd2 Nc8 22. Rc1 Rxc1 23. Kxc1 Nd6 24. Nd2 Bc6 25. g3 f5 26. Kc2 b6 27. Kc3
Ke7 28. Bd3 Kd7 29. Kd4 f6 30. a3 Kc7 31. Bc4 e5+ {is virtually equal}) 4. g3
Ba6 5. b3 d5 6. Bg2 Bb4+ 7. Bd2 Be7 8. O-O c6 9. Qc2 O-O 10. Rd1 Nbd7 11. a4 c5
12. cxd5 Nxd5 13. Nc3 Rc8 14. Qb2 Bb7 15. Nxd5 Bxd5 16. Bc3 Bf6 17. Ne5 Bxg2
18. Kxg2 cxd4 19. Bxd4 Nxe5 20. Bxe5 Bxe5 21. Qxe5 Qe7 22. Qe4 Rc3 $146 ({
Predecessor:} 22... h6 23. b4 Rfd8 24. Rac1 Rxc1 25. Rxc1 Qd7 26. b5 Qd4 27.
Qc2 g6 28. Qc7 Rd7 29. Qc6 h5 30. Rc4 Qd2 31. Qe4 Qb2 32. Rc2 Qd4 33. Rc4 Qxe4+
34. Rxe4 Rd2 35. Kf3 Ra2 36. h3 Kg7 37. g4 hxg4+ 38. hxg4 g5 39. e3 Kf6 40. Kg3
Ke7 41. Rc4 Kd6 42. e4 f6 43. f3 Ke5 44. Rb4 Ra3 45. Rc4 Ra1 46. Rb4 Rg1+ 47.
Kf2 Rd1 48. Kg3 Rd4 49. Rb1 Rxa4 50. Rd1 Rb4 51. Ra1 Rxb5 52. Rxa7 {Duran Vega,
S (2387)-Nguyen,V (2454) Budapest 2019 0-1 (65)}) 23. b4 Qc7 24. Rd4 e5 25. Rd5
Rc4 26. Qxe5 Qxe5 27. Rxe5 Rxb4 28. Rb5 Re4 29. e3 g6 30. a5 Rb8 31. axb6 Rxb6
32. Rd5 a6 33. Rc1 {with a 0.31 evaluation}) 3... Bb4 (3... c5 4. d5 g6 {
[d=51, 71983Mn] A really unusual move order. The orthodoxy is that Black
should play ...ed before e4 so that White does not get the chance to recapture
on d5 with the e-pawn. This is still generally true, but the engines consider
the so-called "flick knife" variation to be extremely difficult for Black.} (
4... exd5 {[d=50, 44502Mn]} 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ {[%cal Ge4e5]
} Nfd7 9. a4 Na6 10. Nf3 Nb4 11. O-O a6 12. Be2 O-O {[%csl Ge4][%cal Gf4f5,
Gc1g5]} 13. Be3 Nf6 14. Nd2 Rb8 15. a5 Re8 16. Bf2 b5 17. axb6 Nd7 18. h3 Nxb6
19. Nf3 h6 20. Qd2 f5 21. e5 Bb7 22. Rfd1 Kh7 23. h4 dxe5 24. fxe5 N4xd5 25.
Bxa6 Bxa6 26. Rxa6 Nxc3 27. bxc3 Qxd2 28. Rxd2 Nc4 29. Rd7 Rbd8 30. e6 {
with a 1.13 evaluation}) 5. e4 d6 6. Nf3 Bg7 (6... exd5 7. exd5 {[%cal Gb7b5]})
7. Be2 O-O 8. O-O exd5 9. exd5 Bg4 10. h3 Bxf3 11. Bxf3 Nbd7 12. Qc2 Ne8 {
[%cal Gf7f5]} 13. g3 a6 14. Be2 Bd4 15. Bd2 f5 16. Rae1 Rb8 17. a4 Ng7 18. Kg2
g5 19. Bd3 Ne5 20. f4 gxf4 21. Rxf4 Qf6 22. b3 Nh5 23. Rxf5 Qg6 24. g4 Nxd3 25.
Qxd3 Rxf5 26. Qxf5 Qxf5 27. gxf5 Ng7 28. Ne4 Nxf5 29. Ng5 {with a 0.99
evaluation}) 4. e3 {After [d=55, 174210Mn] it's nice to see that after
Komodo's favourite 3...Bb4, it also likes 4.e3 the most, a line I played
throughout my professional career. I have to say though that I rather ran out
of ideas in this line in the last few years and to be honest, I don't think
that Komodo Dragon makes a good case for picking it up again... On the other
hand, Komodo Dragon prefers both the London System and 3.Nf3 to 3.Nc3!} (4. Qc2
{is probably the main attempt at the moment. Komodo Dragon is not too
impressed after a huge analysis [d=65, 1238845Mn]} O-O 5. a3 Bxc3+ 6. Qxc3 d5
7. Bg5 dxc4 8. Qxc4 b6 9. Nf3 Ba6 10. Qa4 h6 11. Bh4 c5 12. dxc5 bxc5 13. Rd1
Qb6 14. Bxf6 gxf6 15. e3 Bxf1 16. Kxf1 Nc6 17. Rb1 Rfd8 18. Ke2 Rd5 19. Rhc1
Ne5 20. Nxe5 Rxe5 21. b4 Rb8 22. Kf1 cxb4 $146 ({Relevant:} 22... Qb5+ 23. Qxb5
Rxb5 24. Ke2 cxb4 25. Rxb4 Rxb4 26. axb4 Rb5 27. Rc4 a5 28. bxa5 Rxa5 29. g3
Kg7 30. Rg4+ Kf8 31. Rc4 {1/2-1/2 (31) Giri,A (2761)-So,W (2776) Stavanger 2022
}) 23. Rxb4 Rb5 24. h3 Rxb4 25. axb4 Qxb4 26. Qxa7 Qb2 27. Qc7 Rb5 28. Kg1 Qe5
29. Qxe5 Rxe5 30. Rc4 Rd5 31. Rc8+ Kg7 32. Kf1 Rd1+ 33. Ke2 Rb1 34. Rd8 Rb2+
35. Kf3 Rb5 {with a completely equal position}) (4. f3 {has been one of the
sharpest attempts for White. Komodo Dragon chose 4...c5 (after spending a lot
of time on 4...d5) after an analysis of [d=64, 345739Mn]} c5 (4... d5 {[d=64,
345739Mn]} 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 Qa5 9. e4 Ne7 10. Be3
O-O 11. Qd2 ({Relevant:} 11. Qb3 Qc7 12. Bb5 e5 13. Ne2 Be6 14. c4 Nbc6 15. Nc3
Na5 16. Qb4 Nec6 17. Qa4 a6 18. Bxc6 Nxc4 19. Bxb7 Nxe3 20. Bxa8 Qxc5 21. Nd5
Nxg2+ 22. Kf1 Nf4 23. Qc6 Qa5 24. Rd1 Bxd5 25. exd5 Qxa3 26. d6 Qb2 27. Qe4
Qg2+ 28. Ke1 Qxh1+ 29. Kd2 Qxh2+ 30. Kc3 Ne2+ 31. Kc4 Nd4 32. d7 Qa2+ 33. Kc5
Qa3+ 34. Kb6 Qb3+ {0-1 (34) Shankland,S (2691) -So,W (2770) Lichess.org INT
2020}) 11... Na6 $146 ({Predecessor:} 11... Rd8 12. Qb2 e5 13. Bc4 Na6 14. Ne2
Nxc5 15. Qb4 Nd3+ 16. Bxd3 Qxb4 17. axb4 Rxd3 18. Rxa7 Rxa7 19. Bxa7 Be6 20.
Kf2 Bc4 21. Be3 f5 22. Bg5 Kf7 23. Bxe7 Kxe7 24. exf5 Rd2 25. Re1 Kf6 26. g4
Rc2 27. h4 h5 28. Ke3 Bxe2 29. Rxe2 Rxc3+ 30. Kf2 hxg4 31. fxg4 Rc4 32. Kg3
Rc3+ 33. Kf2 Rc4 34. Kf3 Rxb4 35. Re3 b5 36. Rc3 Rf4+ 37. Kg3 Rc4 38. Ra3 Ra4
39. Rc3 Rc4 40. Ra3 Ra4 {1/2-1/2 (40) Grover,S (2485) -Prince,B (2227) Al Ain
2013}) 12. Bxa6 Qxa6 13. Ne2 e5 14. Kf2 Nc6 15. Ng3 Rd8 16. Qb2 Na5 17. a4 Bd7
18. Rhb1 h6 19. Qb4 Be6 20. Qb5 Rd3 21. Qxa6 bxa6 22. Rd1 Rxc3 23. Rac1 Rxc1
24. Rxc1 Nc6 25. Nf5 Bb3 26. Rb1 Rb8 27. a5 Be6 28. Rxb8+ Nxb8 29. g4 Nc6 30.
Bd2 Kf8 31. h4 f6 32. Bc3 Bb3 33. Ke3 Kf7 34. Nd6+ Ke7 35. h5 Bd1 36. Nf5+ {
with a 0.15 evaluation}) 5. d5 O-O 6. e4 b5 7. e5 Ne8 8. f4 d6 9. Nf3 exd5 10.
cxd5 c4 11. a4 Nd7 12. Be2 Qb6 13. axb5 dxe5 14. fxe5 Nc7 15. Qd4 Qxd4 16. Nxd4
Nxe5 17. Kf2 Bxc3 18. bxc3 Nxd5 19. Nc6 f6 20. Ba3 Rf7 21. Rhd1 Be6 22. Bb4
$146 ({Predecessor:} 22. Rxd5 Bxd5 23. Ne7+ Rxe7 24. Bxe7 Nd3+ 25. Ke3 Re8 26.
Rxa7 Kf7 27. Kd4 Rxe7 28. Rxe7+ Kxe7 29. Kxd5 Nf4+ 30. Kc6 Nxe2 31. b6 Nd4+ 32.
cxd4 c3 33. b7 c2 34. b8=Q c1=Q+ 35. Kd5 Qg5+ 36. Kc4 Qc1+ 37. Kd5 {1/2-1/2
(37) Rezzuti,V (2381)-Parisi,G (2351) ICCF email 2021}) 22... Re8 23. Ra4 Nxb4
24. Rxb4 Bg4 25. Nxe5 Bxe2 26. Rd5 Rxe5 27. Rxe5 fxe5+ 28. Kxe2 Rc7 29. Ke3 Kf7
30. Ke4 Ke6 31. b6 Rb7 32. bxa7 Rxa7 33. h4 Ra2 34. g3 Re2+ 35. Kf3 Re1 {
with equality}) (4. a3 {The Samisch has always been one of my favourites. I've
spent a lot of time analysing it over the years, but never been satisfied with
what I've found! I describe one of these attempts in "The Silicon Road to
Chess Improvement" [d=58, 102282Mn]} Bxc3+ 5. bxc3 b6 (5... c5 {[d=57, 39227Mn]
} 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8 11. O-O Ba6 12. f4 f6 13.
e5 Na5 {[#]} 14. f5 $146 ({Predecessor:} 14. Qc2 f5 15. d5 Bxc4 16. Bxc4 Nxc4
17. d6 g6 18. Qa4 Na5 19. Be3 Ng7 20. c4 h6 21. Rab1 g5 22. Nc3 Nc6 23. Nb5 Kf7
24. Qd1 Rh8 25. Rb2 Kg6 26. g4 h5 27. gxf5+ Nxf5 28. Qd3 g4 29. Rg2 Kf7 30. Bf2
Qg8 31. Qe4 Qg6 32. Nc7 Rag8 33. Nd5 exd5 34. cxd5 Nd8 35. Qa4 Ke8 36. e6 Rh7
37. Re1 Nxd6 38. exd7+ Kf8 39. Bh4 Qf7 40. Bxd8 Qxd7 41. Qc2 Rf7 42. Bg5 Nf5
43. Rge2 Rg6 {Schwarz,D (2338)-Zhigalko,A (2568) Warsaw 2008 0-1}) 14... Bxc4
15. Bxc4 Nxc4 16. fxe6 dxe6 17. Qb3 Qd5 18. Nf4 Na5 19. Qxd5 exd5 20. Nxd5 Rd8
21. Ne7+ Kf7 22. Nf5 cxd4 23. Nxd4 Rd5 24. e6+ Ke7 25. Bf4 Nc4 26. Rad1 Rc5 27.
Nb3 Rb5 28. Nd4 Rc5 {is balanced}) 6. Qc2 Bb7 7. f3 c5 8. e4 Nc6 9. Be3 Ba6
$146 ({Predecessor:} 9... d6 10. Nh3 Na5 11. Be2 Qc7 12. O-O O-O 13. Bg5 Nd7
14. Rfd1 Rfe8 15. Qa4 Ba6 16. Bf4 Nf8 17. Bg3 Rac8 18. Bf1 cxd4 19. cxd4 Bxc4
20. Rac1 b5 21. Qb4 Nb3 22. Bxd6 Qd8 23. Rxc4 bxc4 24. Bxc4 a5 25. Qxb3 Qxd6
26. Nf2 Qc6 27. Bb5 Qb6 28. a4 Ng6 29. Qd3 Red8 30. d5 exd5 31. exd5 Rd6 32.
Qe4 Qc5 33. h3 Rdd8 34. Rd3 h6 35. Rd4 Ne7 36. Ba6 Rc7 37. Rd2 Rxd5 38. Bd3 Qd6
39. Rd1 {Aymard,M (2045)-Kazmin,A ICCF email 2018 0-1}) 10. Nh3 O-O 11. e5 Ne8
12. Ng5 f5 13. exf6 Nxf6 14. dxc5 bxc5 15. Be2 Qc7 16. Ne4 Na5 17. Bxc5 Nxc4
18. Bxc4 Bxc4 19. Bd6 Qa5 20. Bb4 Qb6 21. Bc5 Qc7 {with equality}) 4... O-O {
Komodo's main move} (4... c5 {has also caused me some problems at times in my
professional career [d=52, 142332Mn]} 5. Bd3 (5. Nge2 d5 6. a3 Ba5 {I've had
problems with the ...Ba5 move in all sorts of lines and it's nice to see that
Komodo Dragon also struggles with this move too!}) 5... cxd4 (5... d5 {Not
Komodo's main move, but seems more natural to me than capturing immediately on
d4 [d=60, 161541Mn]} 6. cxd5 (6. a3 {[d=45, 11116Mn]} Ba5 (6... Bxc3+ 7. bxc3
dxc4 8. Bxc4 Qc7 9. Be2) 7. Nf3 dxc4 8. Bxc4 Nc6 9. O-O O-O 10. dxc5 Bxc3 11.
bxc3 Na5 $146 ({Relevant:} 11... Qxd1 12. Rxd1 Ne4 13. Bb2 Nxc5 14. a4 b6 15.
Ba3 Na5 16. Be2 Bb7 17. Bxc5 bxc5 18. Ne5 Rfd8 19. Rab1 f6 20. Nd7 Rac8 21. Rb5
Ba6 22. Rxa5 Bxe2 23. Rd2 Bh5 24. Rxa7 Be8 25. f3 Bxd7 26. Rdxd7 Rxd7 27. Rxd7
Ra8 28. Rc7 Rxa4 29. Rxc5 Ra2 30. h4 f5 31. Rc4 Rc2 32. Kh2 Kf7 33. Kg3 Kf6 34.
e4 fxe4 35. fxe4 h5 36. Rc5 g6 37. Kf3 Rc1 38. g3 e5 39. Rc6+ Kf7 40. Rc8 Rf1+
41. Ke2 {Ju,W (2560)-Lei,T (2535) chess24.com INT 2022 1/2-1/2}) 12. Bd3 Nd7
13. a4 Nxc5 14. Ba3 Qxd3 15. Bxc5 Qxd1 16. Rfxd1 Re8 17. Nd2 b6 18. Bb4 Nc6 19.
Ne4 Rd8 20. Rxd8+ Nxd8 21. a5 bxa5 22. Bxa5 Nb7 23. Nd2 f6 24. Nc4 Nxa5 25.
Rxa5 e5 26. h4 Be6 27. Nd6 Kf8 28. f3 Ke7 29. Ra6 f5 {with just a 0.12
evaluation}) 6... exd5 7. dxc5 (7. a3 Ba5 {This irritating move again!} 8. dxc5
Bxc3+ 9. bxc3 Nbd7 {[#]} 10. a4 $146 ({Predecessor:} 10. Nf3 Nxc5 11. Be2 O-O
12. O-O Bf5 13. Nd4 Bg6 14. c4 Rc8 15. Bb2 Qb6 16. Ra2 Rfd8 17. cxd5 Nxd5 18.
Bg4 Rb8 19. Ba1 Nf6 20. Bf3 Be4 21. Bxe4 Nfxe4 22. Qf3 Rd7 23. Nf5 f6 24. Bd4
Qe6 25. Rc2 b6 26. h4 Nb3 27. Qg4 Nxd4 28. exd4 Re8 29. Rc8 h5 30. Rxe8+ Qxe8
31. Qe2 Nd6 32. Ne3 Re7 33. Rc1 Qf7 34. Qf3 g6 35. Rc6 Ne4 36. d5 Kg7 37. d6
Qe6 38. dxe7 Qxc6 39. Nd5 Qe6 {Marques,V (2305)-Vazquez,M (2131) Buenos Aires
2001 1/2-1/2}) 10... Nxc5 11. Ba3 b6 12. Ne2 O-O 13. O-O Re8 14. Bb5 Bd7 15. c4
dxc4 16. Bxc4 Rc8 17. h3 Nfe4 18. f3 Ng5 19. Nf4 Nge6 20. Nxe6 Bxe6 21. Qxd8
Rexd8 22. Bb5 Bb3 23. a5 bxa5 24. Rfc1 Ne6 25. Rxc8 Rxc8 26. Be7 a6 27. Bxa6
Rc7 28. Ba3 Rc2 29. Bb5 a4 30. Bb4 Nc5 31. Ba3 {is equal}) 7... O-O 8. Nf3 Bg4
9. O-O Bxc5 10. a3 Nc6 11. h3 Bh5 12. b4 d4 $146 ({Predecessor:} 12... Bd6 13.
Bb2 Ne5 14. Be2 Nc4 15. Ra2 a5 16. Ba1 axb4 17. axb4 Rxa2 18. Nxa2 Be7 19. Qd4
Qb6 20. Qxb6 Nxb6 21. Bd4 Ra8 22. Nc3 Nfd7 23. b5 Rc8 24. Ne5 Bxe2 25. Nxe2
Nxe5 26. Bxb6 Nc4 27. Bd4 Bc5 28. Ra1 Kf8 29. g4 g6 30. Kg2 Ke7 31. Bxc5+ Rxc5
32. Nd4 Nd6 33. h4 Kf6 34. Ra8 h6 35. f4 Rc1 36. Rh8 Ra1 37. Kf3 Rf1+ 38. Ke2
Rg1 39. g5+ hxg5 40. hxg5+ Ke7 41. Kd3 Rd1+ 42. Kc2 {Rybko (2403) -Tatar (2501)
Playchess.com INT 2008 1/2-1/2 (66)}) 13. Ne2 Bb6 14. Nexd4 Nxd4 15. exd4 Bxd4
16. Bxh7+ Nxh7 17. Qxd4 Bxf3 18. Qxd8 Rfxd8 19. gxf3 a5 20. b5 a4 21. Re1 Rac8
22. Kg2 Nf6 23. Bg5 Rc5 24. h4 Rxb5 25. Bxf6 gxf6 26. Re4 Rd3 27. Rxa4 Rf5 28.
Rg4+ Kf8 29. Rg3 Rh5 30. Rh3 b5 31. a4 bxa4 32. Rxa4 Rd8 33. Rb4 f5 34. Ra4 Rd6
35. Ra8+ Ke7 36. f4 Kf6 37. Rg8 {with equality}) 6. exd4 O-O 7. Nge2 d5 8. cxd5
Nxd5 9. O-O Nc6 10. a3 Bd6 11. Re1 Bd7 $146 ({Relevant:} 11... Re8 12. Bc2 Qh4
13. Ng3 Bd7 14. Re4 Qd8 15. Qd3 f5 16. Re1 Qf6 17. Nxd5 exd5 18. Be3 g6 19. f4
Na5 20. b3 Re7 21. Bd2 Rxe1+ 22. Bxe1 Nc6 23. Ne2 Re8 24. Bc3 Qe7 25. Kf1 Bxa3
26. Ng1 Nb4 27. Bxb4 Qxb4 28. Nf3 Bb5 {0-1 (28) Sarana,A (2685) -Nakamura,H
(2750) Chess.com INT 2022}) (11... Nce7 {was played recently by Nakamura in
the Candidates 2022 against Duda}) 12. Nxd5 exd5 13. Be3 Qh4 14. g3 Qh5 15. Nc3
Qxd1 16. Raxd1 Be6 17. Be2 Rfd8 18. Bf3 Be7 19. h4 g6 20. Ne2 h5 21. Bg5 Bxg5
22. hxg5 Rd6 23. Nf4 Rad8 24. Re3 Na5 25. Rc3 Rc6 26. Rc5 Rxc5 27. dxc5 Nb3 28.
Nxd5 Kf8 29. Nf4 Rxd1+ 30. Bxd1 Nxc5 31. b4 Ne4 32. Nxe6+ fxe6 {with
approximate equality}) 5. Bd3 d5 6. a3 {This is somewhat unusual and it is
supposed to be a mistake (6.Nf3 has been the main move and the one I played
almost exclusively)} dxc4 7. Bxc4 Bxc3+ 8. bxc3 c5 9. Nf3 Qc7 10. Be2 b6 11.
O-O Bb7 12. Bb2 Nc6 13. Rc1 Na5 14. c4 Rfd8 15. Re1 Rac8 16. Ne5 Qe7 {[#]} 17.
Bd3 $146 ({Predecessor:} 17. Bf1 h6 18. Bc3 Nd7 19. Nxd7 Qxd7 20. dxc5 Qe7 21.
Qc2 Qxc5 {1/2-1/2 (21) Salvador Marques,C (2430)-Oudheusden,W (2432) ICCF
email 2019}) 17... Be4 18. Bf1 h6 19. Bc3 cxd4 20. Bb4 Qc7 21. exd4 Nc6 22.
Nxc6 Bxc6 23. f3 Qf4 24. Bc3 h5 25. Qd3 h4 26. Qe3 Qxe3+ 27. Rxe3 Ne8 28. Bb2
Nd6 29. Rec3 Nf5 30. d5 Ba4 31. Rd3 exd5 32. cxd5 Rxc1 33. Bxc1 Rc8 {with a
slight edge for White} *
[Event "#6 - 1.d4 Nf6 2.c4 g6"]
[Site "?"]
[Date "2022.07.08"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Annotator "gmmat"]
[PlyCount "73"]
[EventDate "2022.??.??"]
1. d4 Nf6 (1... f5 2. c4 {[d=43, 208692Mn]} (2. g3 Nf6 3. Bg2 g6 {Not the main
Komodo Dragon choice [d=44, 38811Mn]} 4. Nf3 c6 5. O-O Bg7 6. c4 d6 7. Nc3 O-O
8. Qb3 Na6 9. Bf4 c5 10. d5 Rb8 11. Bd2 Nc7 12. a4 b6 {[#]} 13. Qc2 $146 ({
Predecessor:} 13. Rfd1 Bd7 14. Nb5 Rb7 15. Ng5 a6 16. Nxc7 Qxc7 17. Qe3 Bc8 18.
h3 Rb8 19. Bc3 h6 20. Ne6 Bxe6 21. Qxe6+ Kh7 22. Rd3 Qd7 23. Re3 Rb7 24. b3 Ne8
25. Rb1 Qxe6 26. dxe6 Rb8 27. b4 Nc7 28. Bd5 Bxc3 29. Rxc3 a5 30. b5 Rf6 31.
Re3 f4 32. Re4 fxg3 33. fxg3 Rbf8 34. Rd1 Kg7 35. Re3 Nxd5 36. cxd5 Rf5 37. Re4
Rg5 38. Rg4 Re5 39. Rd2 g5 40. h4 Rff5 41. e4 Rf3 42. Kg2 Re3 {Vo,P (1710)
-Shen,S (1907) Batumi 2016 0-1 (65)}) 13... Qd7 14. Rfd1 Qe8 15. h3 a6 16. e4
e5 17. dxe6 Nxe4 18. Nxe4 fxe4 19. Qxe4 Bb7 20. Qe3 Nxe6 21. Bc3 Bxc3 22. bxc3
Nc7 23. Qxe8 Rbxe8 24. Nh4 Bxg2 25. Nxg2 Re4 26. Ne3 Ne8 27. a5 bxa5 28. Rxa5 {
with a clear White advantage}) 2... e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2
d5 {There's always a Stonewall when the engines are forced to play a Dutch!} 7.
O-O O-O 8. Nc3 c6 9. Qc2 Ne4 10. Bf4 g5 11. Be3 Nd7 12. Ne5 Nxe5 13. dxe5 Nxc3
14. Qxc3 {[#]} a5 $146 ({Predecessor:} 14... Bd7 15. b4 Be8 16. a4 Bh5 17. Ra2
f4 18. Bd4 a5 19. c5 axb4 20. Qxb4 Qd7 21. a5 Bd8 22. Rfa1 Qf7 23. Bf1 Ra6 24.
Rb2 Ra7 25. Rba2 Bg6 26. a6 fxg3 27. hxg3 g4 28. Qd2 Be4 29. Bg2 Bxg2 30. Kxg2
Qf5 31. Qd3 Qxd3 32. exd3 Bg5 33. Kf1 Kf7 34. axb7 Rxb7 35. Ra7 Rfb8 36. Rxb7+
Rxb7 37. Ra6 Rc7 38. Ke2 Kg6 39. Be3 Be7 40. d4 h5 41. Kd3 h4 42. gxh4 Bxh4 43.
Ra8 Be7 44. Rh8 {Maksimovic,B (2455)-Ivanisevic,I (2601) Terme Catez 2022 1/
2-1/2}) 15. Rad1 Rf7 16. f4 gxf4 17. Bxf4 Qb6+ 18. Kh1 Qb4 19. Bf3 Qxc3 20.
bxc3 b5 21. cxb5 cxb5 22. Bh5 Ba6 23. Bh6 b4 24. Bxf7+ Kxf7 {with a 0.71
evaluation}) 2. Nf3 (2. c4 g6 (2... c5 3. d5 b5 4. cxb5 a6 5. bxa6 e6 {[d=53,
156707Mn] Not the normal Benko treatment, but it's Komodo Dragon's main line!}
(5... g6 {[d=48, 51038Mn]} 6. a7 (6. Nc3 {Again not Komodo's main move!} Bxa6 {
[d=51, 115113Mn]} 7. e4 Bxf1 8. Kxf1 d6 9. g3 Bg7 10. Nf3 O-O 11. Kg2 Qb6 12.
Re1 Nbd7 13. a4 Rfb8 14. Nb5 Ne8 {[#]} 15. h4 $146 ({Predecessor:} 15. Nd2 Ne5
16. f4 Nd3 17. Re3 Nb4 18. Nc4 Qb7 19. Rb1 f5 20. Bd2 fxe4 21. Bxb4 cxb4 22.
Rxe4 Nf6 23. Re1 Rxa4 24. Qxa4 Qxd5+ 25. Kh3 Ng4 26. Qa7 Rb7 27. Qa8+ Bf8 28.
Rf1 Qxb5 29. f5 gxf5 30. Qc8 Nh6 31. Ra1 Qd7 32. Qxd7 Rxd7 33. Ra8 Rc7 34. Ne3
e6 35. g4 Nxg4 36. Nxf5 exf5 37. Rxf5 Ne5 38. Rfxf8+ Kg7 39. Rfb8 Rc4 40. Ra7+
Kh6 41. Rh8 Rd4 42. Raxh7+ Kg6 43. Rh6+ Kg5 44. Rh5+ Kg6 {Espinosa Veloz,E
(2544)-Gallego Alcaraz,A (2511) Santa Clara 2018 1/2-1/2 (67)}) 15... Nc7 16.
Nxc7 Qxc7 17. Ra2 h6 18. Qc2 Qb7 19. Re3 Nf6 20. b3 Ng4 21. Rd3 Qb4 22. Nd2 Ne5
23. Rc3 Ng4 24. Rc4 Qb7 25. Bb2 Bxb2 26. Qxb2 g5 27. Qc1 gxh4 28. Rc3 Kh7 29.
Nc4 Rg8 30. Rf3 Raf8 31. a5 f5 32. a6 Qa8 33. Qc2 f4 34. a7 fxg3 35. Rxf8 {
with a 0.90 evaluation}) 6... Rxa7 7. Nc3 Bg7 (7... Ba6 {Komodo doesn't stay
on this move... it seems it doesn't consider the exchange of lioght-squared
bishops and the displacement of White's king to be a valuable achievement...})
8. e4 O-O 9. a4 e6 $146 ({Predecessor:} 9... d6 10. Bb5 e6 11. Nge2 exd5 12.
exd5 Na6 13. O-O Nb4 14. h3 Bb7 15. Bc4 Ba6 16. Bxa6 Rxa6 17. Bg5 Qa8 18. Bxf6
Bxf6 19. Qd2 Re8 20. Rad1 Re5 21. Ng3 Re7 22. Rfe1 Rxe1+ 23. Rxe1 Ra7 24. Nge4
Be5 25. Nxc5 Bxc3 26. bxc3 dxc5 27. cxb4 cxb4 28. d6 Qc6 29. Rd1 Qd7 30. Qxb4
Rxa4 31. Qb8+ Kg7 32. Qb2+ Kg8 33. Qb8+ Kg7 34. Qb2+ Kg8 35. Qe5 Ra8 36. Re1
Rd8 37. Qf6 Re8 38. Rxe8+ Qxe8 39. Qe7 {Koelle,T (2443)-Weishaeutel,M (2407)
Willingen 2022 1-0}) 10. Bb5 exd5 11. exd5 Bb7 12. Nge2 Na6 13. Bc4 Nc7 14. Bf4
Ba6 15. b3 Nfxd5 16. Nxd5 Nxd5 17. Bxd5 Qf6 18. Ra2 Bxe2 19. Rxe2 Qxf4 20. Re4
Bc3+ 21. Kf1 Qf5 22. g4 Qf6 23. Kg2 Bd4 24. Qf3 Qxf3+ 25. Kxf3 Kg7 26. Rhe1 Ra6
27. R1e2 Rf6+ 28. Rf4 Rd6 29. Bc4 Bc3 30. Kg2 Rd1 31. Re3 Bd4 32. Ref3 f6 33.
a5 Re8 34. a6 {with a 0.75 evaluation}) 6. Nc3 exd5 7. Nxd5 Nxa6 8. Bg5 Be7 9.
Nxe7 Qxe7 10. Nf3 h6 11. Bh4 Rb8 12. b3 {[#]} g5 $146 ({Predecessor:} 12... Rb6
13. e3 O-O 14. a3 Bb7 15. Bd3 Qe6 16. O-O Ne4 17. Bc4 d5 18. Bd3 Bc6 19. Qe2
Bd7 20. Rfc1 Rfb8 21. Bc2 Bb5 22. Qe1 Rc8 23. b4 g5 24. Bg3 Bc4 25. bxc5 Naxc5
26. Nd4 Qf6 27. a4 Ra6 28. a5 Nxg3 29. hxg3 Ne6 30. Bf5 Rf8 31. Nxe6 fxe6 32.
Bg4 Qe5 33. Rcb1 Qc7 34. Rb4 {1-0 (34) Nucci,L (2262)-Cuccumini,V (2155) ICCF
email 2017}) 13. Bg3 Rb6 14. e3 Bb7 15. Rc1 Ne4 16. Nd2 Nxg3 17. hxg3 O-O 18.
a3 Rd8 19. Qc2 Rc8 20. Qb2 Rb8 21. Qc3 d5 22. Qa5 Rf6 23. Be2 d4 24. e4 Bxe4
25. O-O Bg6 26. Bc4 Qc7 27. Qxc7 Nxc7 28. Rfe1 Nb5 29. Bxb5 Rxb5 30. a4 Ra5 31.
f3 Kg7 32. Re8 Re6 33. Rxe6 fxe6 34. Kf2 Bd3 {with approximate equality}) 3. f3
{[d=54, 330880Mn]} (3. Nc3 Bg7 4. e4 d6 5. h3 Nc6 (5... O-O {[d=52, 697103Mn]}
6. Be3 Nc6 7. d5 Ne5 8. f4 Ned7 9. g4 c6 10. Nf3 cxd5 11. cxd5 b6 12. Nd4 Nc5 {
[#]} 13. Nc6 $146 ({Predecessor:} 13. Qf3 Bb7 14. g5 Nfxe4 15. Nxe4 Bxd5 16.
Nf6+ exf6 17. Qxd5 Re8 18. Nc2 fxg5 19. O-O-O gxf4 20. Bd4 Bxd4 21. Qxd4 Ne6
22. Qd2 Qf6 23. Kb1 Rac8 24. Bb5 Red8 25. Nb4 d5 26. Rhf1 Rc5 27. a4 d4 28. Nd3
Rf5 29. Rf3 g5 30. Rg1 Kf8 31. h4 h6 32. hxg5 hxg5 33. Rh3 f3 34. Bc4 Ke7 35.
Bxe6 Kxe6 36. Qh2 f2 37. Rf1 Kd7 38. Rh6 Qe7 39. Rxf2 Rxf2 40. Qxf2 Kc8 41. a5
bxa5 42. Qc2+ Kb8 {Caruana,F (2822)-Firouzja,A (2723) Wijk aan Zee 2020}) 13...
Qe8 14. Bg2 Ba6 15. Bxc5 bxc5 16. Qd2 Nd7 17. e5 Nb6 18. O-O-O dxe5 19. Rhe1
Bb7 20. Na5 Rb8 21. fxe5 Na4 22. Nxa4 Qxa4 23. b3 Qa3+ 24. Kb1 Ba8 25. Nc4 Qa4
26. Qc3 Rb4 27. d6 exd6 28. Bxa8 Rxa8 29. Rxd6 Rab8 30. Red1 Bf8 31. Rd8 Qc6
32. Rxb8 Rxb8 33. Qd3 Bg7 34. Qd5 Qc7 35. e6 {with a 0.69 evaluation}) 6. d5 {
[d=52, 985159Mn]}) 3... c5 (3... Bg7 4. e4) 4. d5 d6 5. e4 Bg7 6. Nc3 e6 7. Be3
O-O 8. Qd2 exd5 9. cxd5 Re8 10. a4 a6 {[%cal Gg1h3,Gh3f2]} 11. Be2 b6 {[%cal
Ga8a7,Ga7e7]} 12. Kf1 {[%cal Gg2g3,Gf1g2,Gg1h3,Gh3f2] [#]} Nbd7 $146 ({
Predecessor:} 12... Qc7 13. b3 h5 14. g3 Ra7 15. Kg2 Rb7 16. Rc1 Qd7 17. h4 b5
18. axb5 axb5 19. Nh3 Na6 20. Nf2 Nc7 21. Bf4 Ra7 22. Rhe1 Ra3 23. Qc2 Nh7 24.
Nb1 Ra7 25. Bf1 Bb7 26. Rcd1 Nf6 27. Nc3 Ra3 28. Nb1 Ra6 29. Nc3 Ra7 30. Kh2
Rea8 31. Bh3 Qd8 32. Bf1 Qf8 33. Rd2 Nd7 34. Nxb5 Nxb5 35. Bxb5 Ne5 36. Be2 Ba6
37. Kg2 Bxe2 38. Rexe2 Ra3 39. Nd3 Ra2 40. Qd1 Ra1 41. Nc1 {1/2-1/2 (41) Cobo
Arteaga, E-Bielicki,C Havana 1964}) 13. Nh3 Ne5 14. Nf2 Rb8 15. g3 b5 16. axb5
axb5 17. Kg2 Nc4 18. Bxc4 bxc4 19. Bf4 Qc7 20. Ra2 Nd7 21. Rha1 Ne5 22. Ra7 Qd8
23. Bg5 Qb6 24. R1a2 Rb7 25. Ra8 h5 26. h3 Bd7 27. Rxe8+ Bxe8 28. Ncd1 Rb8 29.
Bh6 Bxh6 30. Qxh6 Qb3 {[%eval 37,0]}) 2... g6 3. c4 Bg7 4. Nc3 {When forced to
play this, Dragon's choice after [d=56, 189044Mn] was} d5 (4... d6 {When
forced to analyse this, after [d=55, 153859Mn] Dragon's choice is:} 5. e4 O-O
6. Be2 e5 7. O-O Na6 {No Mar del Plata 7...Nc6! I played the King's Indian
intermittently during my professional career and this was my favourite line
for Black.} 8. Be3 Qe7 9. d5 Ne8 10. Ne1 f5 11. f3 Kh8 12. a4 f4 13. Bf2 h5 14.
Nd3 Nc5 15. Nxc5 dxc5 16. a5 g5 17. Na4 b6 18. Kh1 Bf6 19. axb6 axb6 20. b4
cxb4 21. c5 bxc5 22. Bxc5 Nd6 23. Bxb4 Rg8 24. Qc2 g4 25. Nc5 Rxa1 {...though
if I had to guess I would say a Mar del Plata!} 26. Rxa1 Qh7 27. Rc1 h4 28.
fxg4 h3 29. Ne6 c5 30. Bxc5 hxg2+ 31. Kxg2 Nxe4 32. Bf3 Bxe6 33. dxe6 Ng5 34.
Qxh7+ {with a 0.69 evaluation.}) 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb1 O-O
9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. O-O Bg4 13. Be3 Nc6 14. d5 Bxf3 15.
Bxf3 Ne5 16. Rxb7 a5 17. Bc5 {[#]} a4 $146 ({Predecessor:} 17... Qc4 18. Bxe7
Rfb8 19. Rxb8+ Rxb8 20. d6 Qb4 21. Qc1 a4 22. Rd1 a3 23. d7 Nxf3+ 24. gxf3 Qxe7
25. Qc8+ Rxc8 26. dxc8=Q+ Bf8 27. Qc4 Qe5 28. Rd7 Qf6 29. Kg2 a2 30. Qxa2 Qg5+
31. Kf1 Qb5+ {0-1 (31) Petraitis, G-Brzoza,M (2290) ICCF corr 2002}) 18. Bxe7
Rfe8 19. d6 Qe6 20. d7 Qxe7 21. dxe8=R+ Qxe8 22. Be2 a3 23. Qb3 a2 24. Ba6 h5
25. Ra1 Rxa6 26. Rb8 Qxb8 27. Qxb8+ Kh7 28. Qb7 Ra3 29. Kf1 Nd7 30. Rxa2 Rxa2
31. Qxd7 Ra1+ 32. Ke2 Ra2+ 33. Kd3 Rxf2 34. Ke3 Rf6 35. h3 Bh6+ 36. Ke2 Bg7 37.
g4 {with an evaluation of just 0.16 for White.} *
[Event "#7 - Random stuff!"]
[Site "?"]
[Date "2022.07.08"]
[Round "?"]
[White "Komodo Dragon's Openings"]
[Black "?"]
[Result "*"]
[ECO "A01"]
[Annotator "gmmat"]
[PlyCount "59"]
[EventDate "2022.??.??"]
1. b3 {[d=65, 1180873Mn]} (1. e4 c5 2. d4 cxd4 3. c3 {[d=61, 1290210Mn]} dxc3
4. Nxc3 {It's one of the most intriguing things of analysing openings with
modern engines: sometimes pawns just don't seem to matter. The orthodoxy that
human players grow up with is that centre pawns are extremely important.
Losing a centre pawn - even trading a centre pawn for a wing pawn - is
equivalent to losing the game. For that reason, I've always considered the
Morra Gambit to be an essentially losing opening. As we will see however,
Komodo Dragon concludes its analysis with only a tiny disadvantage for White -
essentially equal. Why is this? The key compensation factor when losing a
centre pawn is whether the losing side gains open files and open diagonals and
whether the stronger side is capable of setting up a barrier with its central
pawns and chasing away any opposing pieces that occupy central squares. Add
pawns to c2 and c7 and the evaluation is -0.8. Here in the Morra, Black has
the d- and e-pawns to set up a barrier but they will not advance without
causing weaknesses (. e.g. ...e5 allows Nd5) And with an engine on the white
side, every single resource for activity will be exploited! It reminds me a
lot of a game I had back in 1995 with the French GM Manuel Apicella. He
ventured a von Hennig Schara Gambit against me but instead of castling
queenside and going all-out for an attack on oppoiste wings (for which I was
very well prepared) he simply castled quietly and played for general activity.
I was so disappointed after the game: I thought I hadn't played badly but I
simply hadn't managed to make anythingb of a clear extra pawn! Strangely
enough: that's exactly how Komodo Dragon wants to play this opening as Black
and again doesn't consider that Black stands so badly!} Nc6 5. Nf3 d6 6. Bc4 a6
7. O-O Nf6 8. Bf4 (8. Qe2 Bg4 {[%cal Gc6d4]}) 8... e6 9. Qe2 Be7 10. Rfd1 Qc7
11. Rac1 O-O 12. Bb3 Qb8 13. Na4 b5 14. Rxc6 bxa4 15. Bxa4 Bd7 16. Rc4 Bb5 17.
Bxb5 axb5 18. Rcc1 {[%cal Gf3d4,Gd4c6] [#]} Qb7 $146 ({Predecessor:} 18... Ra4
19. Nd4 Rxd4 20. Rxd4 e5 21. Rb4 exf4 22. Qxb5 Qa8 23. Ra4 Qb8 24. Qxb8 Rxb8
25. b3 Kf8 26. Rac4 Ke8 27. Rc8+ Rxc8 28. Rxc8+ Kd7 29. Rc4 Ng4 30. Ra4 Bf6 31.
f3 Ne5 32. Ra7+ Kc6 33. Kf1 Kb6 34. Ra8 Nc6 35. Rf8 Nd8 36. Rh8 h6 37. Ke2 Kc6
38. Kd3 Kc5 39. a3 g6 40. Rxh6 Ne6 41. g3 d5 42. b4+ Kd6 43. exd5 Kxd5 44. a4
Be7 45. Kc3 Bf6+ 46. Kb3 Nd4+ 47. Ka2 fxg3 48. hxg3 {Fritsche,F (2353)-Kolanek,
R (2264) ICCF email 2018 1/2-1/2 (62)}) 19. Bxd6 Bxd6 20. Rxd6 Rxa2 21. Rdc6
Ra1 22. Rxa1 Qxc6 23. e5 Nd5 24. Nd4 Qc5 25. Nxb5 Nf4 26. Qe4 Qxb5 27. Qxf4
Qxb2 28. Rd1 Qb3 29. Qd2 h6 30. h4 Qc4 31. g3 Ra8 32. Qe3 Qc7 33. Qe4 Ra5 34.
Rd6 h5 {[%eval -1,0]}) (1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6.
Bc4 Nge7 7. O-O {[d=62, 246656Mn]} a6 {[%cal Gc3b5]} (7... Ng6) 8. h4 b5 9. Be2
Bb7 10. Be3 $146 {[%cal Gh4h5]} ({Predecessor:} 10. h5 Ng8 11. Bf4 Nf6 12. e5
Nxh5 13. Be3 g6 14. g4 Ng7 15. Ne4 Be7 16. Bg5 Kf8 17. Bh6 Kg8 18. Nf6+ Bxf6
19. exf6 Ne8 20. g5 Qb6 21. Rc1 d6 22. Re1 Rd8 23. Bf1 a5 24. Qd3 b4 25. Qb5
Qxb5 26. Bxb5 Rc8 27. Bxc6 Rxc6 28. Nd4 Rc5 29. Rxc5 dxc5 30. Nb5 Bc6 31. Na7 {
1-0 (31) Nichols,S (2001)-Valentin,F (2049) FICGS email 2009}) 10... Nc8 11. a4
b4 12. Nb1 Na5 13. Bd3 Be7 14. Nbd2 O-O 15. Rc1 {[%csl Gh4]} Nd6 (15... d5 16.
e5 {[%cal Ge3d4,Gf3d4,Gf2f4,Gg2g4]}) 16. e5 Nf5 17. Bxf5 exf5 18. Nd4 g6 19. h5
Rc8 20. hxg6 hxg6 21. Nxf5 gxf5 22. Qh5 Rxc1 23. Rxc1 d6 24. Qxf5 dxe5 25. Qg4+
Kh8 26. Qh5+ Kg8 27. Qg4+ {[%eval 0,0]}) (1. e4 c5 2. d4 cxd4 3. c3 dxc3 4.
Nxc3 Nc6 5. Nf3 e6 6. Bc4 Nge7 7. O-O Ng6 {[%cal Gc3b4,Gc3b5] [d=61, 122965Mn]
My suggestion} 8. h4 $146 ({Relevant:} 8. Nb5 d6 9. Bg5 Qd7 10. Nbd4 h6 11. Be3
a6 12. Nxc6 bxc6 13. h4 h5 14. Bg5 Be7 15. Bxe7 Qxe7 16. Bb3 Bd7 17. g3 c5 18.
Re1 Rd8 19. Re3 Bb5 20. a4 Bc6 21. Qe2 a5 22. Bc4 Qc7 23. b3 Ne5 24. Nxe5 dxe5
25. Rc1 Qb6 26. Bb5 Rd4 27. Bxc6+ Qxc6 28. Qb5 Qxb5 29. axb5 O-O 30. Rxc5 f6 {
1/2-1/2 (30) Yoo,C (2449)-Perez Ponsa,F (2560) Saint Louis 2019}) 8... Nxh4 9.
Nxh4 Qxh4 10. Nb5 Rb8 11. g3 Qf6 12. Bf4 e5 13. Be3 {[%csl Gd5]} h5 14. Kh2 Be7
15. f4 Qg6 16. Nc7+ Kd8 17. Nd5 d6 18. f5 Qg4 19. Be2 Qxe4 20. Rc1 Bd7 21. Qd2
Nd4 22. Nc3 Qc6 23. Bxd4 exd4 24. Qxd4 Bf6 25. Qxa7 Rc8 26. Nb5 Qd5 27. Rxc8+
Bxc8 28. Nxd6 h4 29. Nxf7+ Ke8 30. Nxh8 hxg3+ 31. Kxg3 Be5+ 32. Kh3 Bxf5+ 33.
Rxf5 Qh1+ 34. Kg4 Qg2+ 35. Kh5 Qxe2+ 36. Kg6 Qg4+ 37. Rg5 Qe4+ 38. Rf5 Qg4+ {
[%eval 0,0] Also}) (1. d4 d5 (1... Nc6 2. d5 Ne5 3. e4 {is a 0.89 evaluation
according to Komodo [d=44, 33152Mn]}) (1... Nf6 2. Nf3 g6 3. c4 Bg7 4. e3) 2.
c4 e6 3. Nc3 c5 4. cxd5 cxd4 {[d=52, 171072Mn]} 5. Qa4+ Bd7 6. Qxd4 exd5 7.
Qxd5 Nf6 8. Qd1 Bc5 9. Nf3 O-O 10. e3 Qe7 11. Be2 Nc6 12. O-O Rfd8 13. Qc2 Nb4
14. Qb1 Bc6 15. Qf5 {[#]} g6 $146 ({Predecessor:} 15... Bd7 16. Qf4 Bg4 17. e4
Bxf3 18. Bxf3 Bd6 19. Qh4 Be5 20. Rb1 Nd3 21. Rd1 h6 22. Be3 Nxb2 23. Rxb2 Bxc3
24. Rbb1 Be5 25. Rdc1 b6 26. Be2 Bd4 27. Bxd4 Rxd4 28. f3 Rd2 29. Bc4 Rad8 30.
Qf4 Qc5+ 31. Kh1 Qf2 32. Rg1 Qc5 33. Rgc1 Qf2 34. Rg1 Qc5 {1/2-1/2 (34) Malm,A
(1801) -Carothers,C (1657) IECC email 2001}) 16. Qe5 Nc2 17. Rb1 Ne4 18. Bc4
Nxc3 19. bxc3 Rac8 20. Qxe7 Bxe7 21. Ne5 Bd5 22. Bb3 Na3 23. Bxa3 Bxa3 24. g3
Rd6 25. Bxd5 Rxd5 26. Nf3 b6 27. Rfd1 Ra5 28. Rb3 Be7 29. Rd2 h5 30. h4 Rc4 31.
Nd4 Bf6 32. Kf1 Kf8 33. Rc2 Rca4 34. Rbb2 Bg7 35. Kg1 Rc4 {[%eval 54,0] with
an evaluation of 0.54}) (1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qa4+ b5 6.
Qxd4 Nc6 7. Qd2 exd5 8. Qxd5 Bd7 9. e3 Nf6 10. Qd1 a6 11. Nf3 Qb6 12. Be2 Rd8
13. O-O Bf5 14. Bd2 Be7 15. a3 O-O 16. b4 Ne4 17. Nxe4 Bxe4 18. Qc1 Bxf3 19.
Bxf3 Ne5 20. Be4 f5 21. Bc3 Qb8 22. Bc2 Rc8 23. Qb2 Bf6 24. Bd4 Kh8 25. Bb3 f4
26. h3 fxe3 27. fxe3 Nd3 28. Qd2 Bxd4 29. exd4 Qg3 30. Be6 Rcd8 31. Rxf8+ Rxf8
32. Rf1 Nf4 33. d5 h6 34. Rf2 Rf6 35. Rf1 Qg5 36. Qc2 Nxe6 37. Rxf6 Qxf6 38.
dxe6 Qxe6 39. Qd3 Kg8 40. Kf2 {1/2-1/2, Matthew D Sadler 2565 - Manuel
Apicella 2555, Linares zt, Linares (8), 1995}) (1. d4 Nf6 2. c4 e5 {[d=50,
164374Mn]} 3. dxe5 Ng4 4. e3 Nxe5 5. f4 {A line that has been seen at the TCEC}
Nec6 6. Nc3 d6 {[#]} 7. b3 $146 ({Predecessor:} 7. Nf3 g6 8. b3 Bg7 9. Bb2 a5
10. a3 Na6 11. Bd3 Nc5 {1/2-1/2 (11) Bluebaum,M (2642)-Nisipeanu,L (2652)
Terme Catez 2022}) 7... g6 8. Bb2 Bg7 9. Qd2 a5 10. Nge2 O-O 11. Ng3 Nb4 12.
Be2 Nd7 13. O-O Nc5 14. Rad1 f5 15. Nb5 Bxb2 16. Qxb2 Qe7 17. Qd2 Re8 18. Rf3
Qg7 19. Rf2 Be6 20. Bf3 Re7 21. Nd4 Bd7 22. a3 Nc6 23. Nb5 Be6 24. b4 axb4 25.
axb4 Na4 26. Bd5 Bf7 27. e4 fxe4 28. Nxe4 Bxd5 29. cxd5 Rxe4 {with equality}) (
1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e3 Nxe5 5. f4 Nec6 6. Nc3 (6. Ne2 d6 7. b3
Bg4 8. Nbc3 Be7 9. g3 Bf6 10. Bd2 Bf3 11. Rg1 h6 12. Kf2 Bh5 13. g4 Bg6 14. Rg2
O-O 15. Rc1 Nd7 16. Ng3 Nc5 17. Kg1 a5 18. Nd5 Ne4 19. a3 Nxd2 20. Qxd2 Kh8 21.
Bd3 Bh4 22. Qc3 Ne7 23. Nf5 Nxf5 24. gxf5 c6 25. fxg6 cxd5 26. cxd5 Bf6 27. Qc4
fxg6 28. Qe4 Qe8 29. Qxg6 Qxe3+ 30. Kh1 Qxc1+ 31. Rg1 Qxg1+ 32. Kxg1 Kg8 33.
Bf5 Ra7 34. Qh7+ Kf7 35. Be6+ Ke7 36. Kg2 b6 37. Qc2 Rb8 38. Bg4 Kd8 39. Qc6 {
adjudication 1/2-1/2 (110) LCZero v0.24-sv-t60-3010 (3840)-Stockfish
20200407DC (3851) https://tcec-chess.com/ #season 2020}) 6... d6 7. b3 g6 8.
Be2 Bg7 9. Bb2 a5 10. Bf3 Na6 11. Nge2 Nc5 12. O-O Nb4 13. Nc1 O-O 14. a3 Nba6
15. b4 Nd7 16. Nd3 axb4 17. axb4 Nb6 18. b5 Nxc4 19. Qc1 Nc5 20. Nxc5 Rxa1 21.
Bxa1 dxc5 22. Nd5 Nb6 23. Rd1 Nxd5 24. Rxd5 Qh4 25. Bxg7 Kxg7 26. Rxc5 c6 27.
bxc6 bxc6 28. Rxc6 Be6 29. h3 Qg3 30. Rc5 h6 31. Qb2+ Kh7 32. Qf2 Qxf2+ 33.
Kxf2 Rc8 34. Rxc8 Bxc8 {[%eval 5396,0] 1/2-1/2, Stockfish 20200407DC 3851 -
LCZero v0.24-sv-t60-3010 3840, TCEC Season 17 (40) Superfinal, https://
tcec-chess.com/#season (17.1),}) 1... e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4
Qh4+ (5... exf4 6. Bxg7) 6. g3 Qe7 7. Nf3 f6 8. Nc3 Be6 9. fxe5 fxe5 10. d4 e4
11. Ne5 Qg5 $146 {This fascinating idea has been seen in the TCEC already: I
even wrote a theoretical article about it for New in Chess and there's a video
about it on the Game Changer YouTube site: https://youtu.be/ISF-rFatf9c} ({
Predecessor:} 11... Bxe5 12. Bxc6+ bxc6 13. Qh5+ Qf7 14. Qxf7+ Kxf7 15. dxe5
Bh3 16. Ne2 Ne7 17. Nf4 Bg4 18. O-O Bf3 19. e6+ Kf8 20. Nh5 Rg8 21. Rxf3+ exf3
22. Rf1 Ng6 23. Ba3+ Ke8 24. Rxf3 Nf8 25. Rxf8+ Rxf8 26. Nxg7+ Kd8 27. e7+ {
1-0 (27) Kozionov,K (2470)-Deac,B (2625) Chess.com INT 2021}) 12. Nxc6 a6 13.
Ba4 Nf6 {[%csl Ge3][%cal Gc7c6,Ge8g8,Gf6g4]} 14. Ne5+ (14. Ne5+ c6 15. Qd2 (15.
b4 Qxe3+ 16. Ne2 Ng4 17. Nxg4 Bxg4 18. Qd2 Qxd2+ 19. Kxd2 O-O {[%csl Ga4][%cal
Ge4e3]} 20. h3 e3+ 21. Kd3 Bf3 22. Rhf1 Rae8 23. Rxf3 Rxf3 24. Bb3 b5 25. a4
Bb8 26. axb5 axb5 27. Ra6 Rf6 28. c3 Kf7 29. Bc1 Ree6 30. Ra8 Bc7 31. h4 Rf1
32. g4 Bd6 33. Ra6 Bb8 34. Ra8 Bc7 35. Ra7 Re7 36. Ra6 Re6 37. Ra7 {
adjudication 1/2-1/2 (37) StockfishNNUE 20200704-StockFi (3801)-Stoofvlees II
a14 (3755) https://tcec-chess.com/#season 2020}) 15... b5 16. O-O-O O-O 17. h3
Rac8 18. Ne2 Nd7 19. Nf4 Qf6 20. Qa5 Nxe5 21. dxe5 Bxe5 22. Ba3 Rfe8 23. Rhf1
Qh6 24. Kb1 Bf7 25. Bc5 Rcd8 26. h4 Ra8 27. Rg1 Rac8 28. Rh1 Bd6 29. Bxd6 Qxd6
30. g4 Qd8 31. Qxd8 Rcxd8 32. Bxb5 axb5 33. c3 Kf8 34. a3 Be6 35. Rhg1 Ke7 36.
b4 Kd6 37. g5 Rf8 38. Rdf1 Rf5 39. Kb2 Rdf8 40. Rf2 Ke5 41. Rgf1 g6 42. Kc1
R5f7 43. Kb2 Kd6 44. Rg1 Bh3 45. Kc1 Bc8 46. Kc2 Bd7 {adjudication 1/2-1/2 (46)
LCZero v0.26.0-sv-t60-4229-mlh (3805)-Stoofvlees II a14 (3749) https://
tcec-chess.com/#season 2020}) (14. Qd2 O-O 15. O-O-O bxc6 16. Ne2 Bd7 17. Kb1
Qh6 18. Rdg1 Rf7 19. h4 Qg6 20. Nf4 Qf5 21. Rf1 Ng4 22. h5 Raf8 23. Bc1 g5 24.
Ng6 Qxf1 25. Rxf1 Rxf1 26. Nxf8 Kxf8 27. b4 Bxg3 28. Qg2 Rf3 29. Qe2 Nf6 30.
Qxa6 g4 31. Bxc6 Bxc6 32. Qxc6 Bd6 33. c4 dxc4 34. b5 Ke7 35. b6 cxb6 36. Qb7+
Ke6 37. Qc8+ Kd5 38. Qb7+ Ke6 39. Qc8+ Kd5 40. Qd8 c3 41. Qa8+ Ke6 42. Qc8+ Kf7
43. Qb7+ Ke6 44. Qc8+ Kf7 45. d5 Kg7 46. Qe6 Bc5 47. d6 g3 48. Qe5 Bxd6 49.
Qxd6 Kh6 50. Qe5 g2 51. Qh2 Rf2 52. Qg3 Re2 53. Qf4+ Kg7 54. Qg3+ Kf7 55. Qc7+
Kg8 {[%eval 5399,0] 1/2-1/2, Stockfish 202007032109 3807 - Stoofvlees II a14
3749, TCEC Season 18 (24) Top Of The Top Bonus, https://tcec-chess.com/#season
(7.1),}) 14... c6 15. b4 Qxe3+ 16. Qe2 Qxd4 17. Nxc6 bxc6 18. Bxc6+ Kf7 19. a3
Rac8 20. Rd1 Qe5 21. Rxd5 Bxd5 22. Bxd5+ Kg6 (22... Nxd5 23. Nxe4) 23. Bxe4+
Kf7 24. O-O Rxc3 25. Bxc3 Qxc3 26. Bd5+ Kg6 27. Rxf6+ gxf6 28. Qg4+ Kh6 29.
Qh3+ Kg6 30. Qg4+ {with a 0.00 evaluation} *
[Event "#1 - Overview"]
[Site "?"]
[Date "2022.07.15"]
[Round "?"]
[White "Koivisto Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Annotator "gmmat"]
[PlyCount "57"]
1. e4 {[d=60/89 2472084Mn]} (1. d4 {[d=56/88, 1798308Mn]} Nf6 2. c4 e6 3. Nf3
d5 4. Nc3 dxc4 5. e4 Bb4 6. Bxc4 Nxe4 7. O-O Nxc3 8. bxc3 Bd6 9. Ng5 h6 10. Ne4
O-O 11. Qh5 f5 12. Nxd6 cxd6 13. Re1 d5 14. Bb3 Qf6 15. Bf4 Bd7 16. Re3 Nc6 17.
Rae1 {[#]} Rac8 $146 ({Predecessor:} 17... Kh7 18. Ba4 g5 19. Bd6 Rfc8 20. c4
g4 21. Bxc6 Rxc6 22. Be5 Qg6 23. Qh4 Qg5 24. Qg3 Rxc4 25. h3 Rg8 26. hxg4 Qxg4
27. Qh2 Rg6 28. Rg3 Qe2 29. Rf1 Rc8 30. Qh4 Rxg3 31. Qe7+ Kg6 32. fxg3 Qe3+ 33.
Kh2 {1-0 (33) Kovalenko,I (2624)-Sulskis,S (2507) Liepaja 2018}) 18. h3 Qf7 19.
Qe2 Na5 20. Kh2 Kh7 21. Qb2 Qg8 22. Rg3 Rf7 23. Ree3 Qd8 24. Qe2 Nc4 25. Bxc4
Rxc4 26. Be5 f4 {0.27}) (1. c4 {[d=54/93, 516955Mn]} e5 2. g3 Nf6 3. Bg2 Bc5 4.
Nc3 c6 5. e3 d5 6. cxd5 O-O 7. d4 exd4 8. exd4 Bb6 9. Nge2 Nxd5 10. Nxd5 cxd5
11. O-O Nc6 12. Be3 Bg4 13. Qd3 Bxe2 14. Qxe2 Nxd4 15. Bxd4 Bxd4 16. Rad1 Qf6 {
[#]} 17. Rd3 $146 ({Predecessor:} 17. b4 Bc3 18. Rxd5 Bxb4 19. Rb5 Rae8 20. Qf3
Qxf3 21. Bxf3 a5 22. Rxb7 Re7 23. Rxe7 Bxe7 24. Rc1 Rd8 25. Rc7 Kf8 26. Ra7 Bb4
27. Be2 Rd4 28. a3 Bxa3 29. Ra8+ Ke7 30. Rxa5 Bd6 31. Ra7+ Kf6 32. Rb7 g6 33.
Kg2 Bc5 34. Rc7 Bd6 35. Rc2 h5 36. f4 h4 37. Kf3 hxg3 38. hxg3 g5 39. Rc4 Rd2
40. Ra4 gxf4 41. gxf4 Kg7 42. Rc4 f5 43. Rc6 Rd4 44. Rc4 Rd5 45. Rc6 Rd4 46.
Rc4 Rxc4 {Tanis,C (2231)-Struzka,V (2215) ICCF email 2014 1/2-1/2}) 17... Bxb2
18. Bxd5 Rae8 19. Qc2 Bd4 20. Rfd1 Qf5 21. Bxb7 Rb8 22. R1d2 Rxb7 23. Rxd4 Qxc2
24. Rxc2 g6 25. Kg2 Kg7 26. Rdc4 Rd8 27. h4 Rbd7 28. Ra4 Kg8 29. Ra5 {0.33}) (
1. Nf3 {[d=51/88, 325127Mn]} Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. d4 Nxc3 6.
bxc3 g6 7. e3 Bg7 8. Bb5+ Bd7 9. Bd3 O-O 10. O-O Bc6 11. Rb1 e6 12. e4 Nd7 13.
h4 Nf6 14. Qe2 {[#]} cxd4 $146 ({Predecessor:} 14... Rc8 15. Bf4 cxd4 16. cxd4
h5 17. Rfd1 Ng4 18. Bb5 Qd7 19. a4 a6 20. Bxc6 Rxc6 21. Qb2 b5 22. Qb3 Rfc8 23.
axb5 {1/2-1/2 (23) Amann,H (2412)-Schmitz,A (2385) GER email 2019}) 15. cxd4
Ng4 16. h5 gxh5 17. Rb4 Qd6 18. Rc4 f5 19. e5 Qd7 20. Ng5 Bd5 21. Rc3 Rac8 22.
Bb5 Qe7 23. Bc4 Qd7 24. Bxd5 Qxd5 25. Rg3 Rc4 26. Ba3 {0.38}) 1... e5 2. Nf3
Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 O-O 9.
d4 Bf6 {Once again this line of the Berlin is seen as best play by White and
Black!} 10. Re1 Re8 11. c3 Rxe1 12. Qxe1 Ne8 13. Bf4 d5 14. Bd3 g6 15. Nd2 Ng7
16. Nf3 Bf5 17. Bxf5 Nxf5 18. Qd2 a5 19. Re1 Nd6 20. g3 Ne4 21. Qc2 a4 22. Nd2
Nd6 23. a3 h5 24. h4 c6 25. Bxd6 Qxd6 26. Nf3 b5 27. Qd3 Qd7 28. Ne5 Bxe5 29.
Rxe5 {0.36} *
[Event "#2 - 1.e4"]
[Site "?"]
[Date "2022.07.15"]
[Round "?"]
[White "Koivisto Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Annotator "gmmat"]
[PlyCount "56"]
1. e4 e6 {[d=51/94, 450032Mn]} (1... c6 {[d=49/94, 199440Mn]} 2. Nf3 {Koivisto
has a strange fetish for early knight moves on the way to transposing to main
lines! 2.Nc3 vs the French and 2.Nf3 vs the Caro-Kann.} d5 3. e5 c5 {Koivisto
prefers the Khenkin-Arkell to the old-fashioned 3...Bf5} (3... Bf5 4. d4 e6 5.
Be2 {The Short system once again! Koivisto however prefers 5...Ne7 to the
immediate 5...c5} Ne7 6. O-O Nd7 7. Nbd2 h6 8. Nb3 Bh7 9. a4 Ng6 10. a5 Be7 11.
c4 dxc4 12. Bxc4 O-O 13. Qe2 Rc8 14. Be3 {[#]} b6 $146 ({Predecessor:} 14...
Re8 15. Rfc1 Bf8 16. Bd3 Nh4 17. Bxh7+ Kxh7 18. a6 b6 19. Nxh4 Qxh4 20. Qf3 Nb8
21. Qxf7 Qe7 22. Qf3 Rcd8 23. Nd2 Rd5 24. Ne4 Red8 25. Bg5 hxg5 26. Qh5+ Kg8
27. Nxg5 g6 28. Qxg6+ Bg7 29. Rc3 Rxd4 30. g3 Rd1+ 31. Rxd1 Rxd1+ 32. Kg2 Nd7
33. Qh7+ Kf8 34. Rf3+ Ke8 35. Qh5+ Kd8 36. Rf7 {1-0 (36) Feygin,M (2512)-Ruck,
R (2571) Germany 2013}) 15. Bd3 Rc7 16. Rfd1 Bb4 17. axb6 axb6 18. Nc1 Ne7 19.
Bxh7+ Kxh7 20. Nd3 Nd5 21. Nf4 Nxe3 22. fxe3 Be7 23. Kh1 Qc8 24. e4 Kg8 25. h3
Rd8 26. d5 cxd5 27. exd5 Bg5 28. Nxg5 hxg5 29. Nh5 exd5 30. e6 {0.65}) 4. d4
cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. Bd3 {A system that AlphaZero tried many times
against Stockfish 8 with success. See https://youtu.be/uxkvU2LG33U for a great
example!} a5 {[#]} 8. Nc3 $146 ({Predecessor:} 8. O-O e6 9. Re1 Ba6 10. Nd2
Bxd3 11. cxd3 Ne7 12. Nf3 c5 13. Be3 Nf5 14. Bg5 Qd7 15. Rc1 h6 16. Bd2 a4 17.
g4 Nd4 18. Nxd4 cxd4 19. Kg2 Be7 20. Qf3 O-O 21. h4 Bxh4 22. Rh1 Qe7 23. Qh3 g5
24. Qf3 f5 25. Rxh4 gxh4 26. Bxh6 fxg4 27. Qxg4+ Kh7 28. Bxf8 Rxf8 29. Qh5+ Kg8
30. Rg1 Rf7 31. Kh1+ Rg7 32. Rc1 Qf8 33. f4 Rg3 34. Qxh4 Rg6 35. Rg1 Rxg1+ 36.
Kxg1 Qb4 37. Qf2 Qc5 {Izzat,K (2465)-Yuan,Q (2373) Chess.com INT 2022 1/2-1/2
(79)}) 8... e6 9. Na4 Ne7 10. O-O Ng6 11. f4 Rb8 12. b3 Be7 13. Be3 c5 14. Bxg6
hxg6 15. Bxc5 Bd7 16. Bxe7 Qxe7 17. Nb2 Bb5 18. Rf2 Qa7 19. a4 Ba6 20. Qd2 Rb4
21. h3 O-O 22. Nd1 Rfb8 23. Rc1 Qc7 24. Nb2 Re4 {0.53}) (1... c5 {[d=59/97,
2485836Mn]} 2. Nf3 d6 (2... Nc6 {[d=51./88, 276142Mn]} 3. Bb5 {Not a surprise:
the Rossolimo has been the main line against 2...Nc6 in human games for quite
a few years.} (3. d4 {Why not 3.d4? [d=53/100, 214287Mn]} cxd4 4. Nxd4 Nf6 5.
Nc3 e5 {The Sveshnikov of course!} 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7
10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 Ne7 13. a4 ({Relevant:} 13. Ncb4 O-O 14. g3
Be6 15. h4 Bh6 16. Bg2 a5 17. Nxe7+ Qxe7 18. Nd5 Qb7 19. g4 Bxd5 20. Qxd5 Qxd5
21. exd5 Bf4 22. Ke2 Rab8 23. a3 g6 24. h5 Kg7 25. Rh3 Rfc8 26. Kd3 Kf6 27.
hxg6 hxg6 28. Rh7 Rc7 29. Be4 Kg5 30. Ke2 b4 31. cxb4 axb4 32. a4 b3 33. Kf3
Rb4 34. a5 Rxe4 35. a6 Rd4 36. a7 e4+ 37. Kg2 Rxa7 38. Rxa7 Rd2 39. Kf1 Rxb2
40. Rb7 Kxg4 41. Rh8 Be5 42. Rhb8 Rb1+ {Nepomniachtchi,I (2792)-Saric,I (2653)
Zagreb 2021 0-1 (63)}) 13... bxa4 14. Bc4 Rb8 15. Ncb4 Bd7 16. Bxa6 Nxd5 17.
Qxd5 O-O 18. O-O Qb6 {[#]} 19. Bc4 $146 ({Predecessor:} 19. Qd1 g6 {1/2-1/2
(19) Sasvari,T (2540)-Engelen,J (2401) ICCF email 2020}) 19... Kh8 20. h3 f5
21. exf5 Rxf5 22. b3 axb3 23. Ra6 Qc5 24. Qxd6 Qxd6 25. Rxd6 Ba4 26. Rb1 e4 27.
Ra6 Bd7 28. Ra7 Bb5 29. Ra5 Bd7 30. Rxf5 Bxf5 31. g4 Bg6 32. Rxb3 e3 33. Nd5
exf2+ 34. Kxf2 {0.33}) 3... e6 {The engines always seem to like this "holey"
approach to the Rossolimo!} 4. Bxc6 bxc6 5. d3 Qc7 6. O-O Ne7 7. Re1 {[#]} e5
$146 ({Predecessor:} 7... Ng6 8. e5 Be7 9. h4 f6 10. Nbd2 O-O 11. exf6 Bxf6 12.
Ne4 Bxh4 13. Nxh4 Nxh4 14. Qh5 Nf5 15. c3 d6 16. g4 Ne7 17. Re3 Nd5 18. Rh3 Nf6
19. Nxf6+ gxf6 20. Bh6 Rf7 21. g5 fxg5 22. Qxg5+ Kh8 23. Rg3 Bb7 24. Kh1 Qe7
25. Qxe7 Rxe7 26. Rag1 Ba6 27. c4 d5 28. b3 e5 29. Bg7+ Rxg7 30. Rxg7 e4 31.
dxe4 dxc4 32. e5 {1-0 (32) Grover,S (2505)-Lupulescu,C (2640) Al Ain 2014}) 8.
c3 Ng6 9. d4 cxd4 10. cxd4 d6 11. Be3 Be7 12. Nc3 O-O 13. dxe5 dxe5 14. Qc2 Qb7
15. Na4 Bg4 16. Nd2 Rfd8 17. h3 Be6 18. Nb3 Bxb3 19. Qxb3 Qxb3 20. axb3 Nf4 21.
Kf1 Ne6 22. Rac1 Nd4 23. Bxd4 exd4 24. Rxc6 Rab8 25. Rc7 Bf8 26. Ra1 Rxb3 27.
Rxa7 d3 28. Rd1 Bb4 {New game}) (2... e6 {[d=45/83, 163067Mn]} 3. d4 cxd4 4.
Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 {This line avoids the Sveshnikov which
could also be reached after 6.Ndb5 d6 7.Bf4 e5.} Nd5 8. Ne4 Qc7 9. f4 Qb6 10.
c4 Bb4+ 11. Ke2 f5 12. Nf2 Ba6 13. Kf3 Ne7 14. Be3 Bc5 15. Bxc5 Qxc5 16. Qd6
Qb6 17. b3 Bb7 18. Rd1 c5+ 19. Ke3 Kf7 20. Qxb6 axb6 21. Rxd7 Bc6 22. Rd2 Ra3
23. Nd3 Rd8 24. Rg1 {[#]} Rd4 $146 ({Relevant:} 24... Be4 25. Nc1 Rxd2 26. Kxd2
Nc6 27. Kc3 Ra8 28. g3 Nb4 29. a4 Rd8 30. Be2 Bc2 31. Bh5+ Ke7 32. Bf3 Rd7 33.
h4 Rd8 34. Rf1 Rd7 35. Rf2 Bd1 36. Bg2 g6 37. Rd2 Rxd2 38. Kxd2 Bc2 39. h5 Kf7
40. Bf3 gxh5 41. Bxh5+ Ke7 42. Bf3 h6 43. Kc3 Kd7 44. Kb2 Kc7 45. Na2 Nxa2 46.
Kxa2 Bd3 47. Ka3 Bf1 48. Bh5 Bd3 49. a5 b5 50. cxb5 Bxb5 51. b4 cxb4+ 52. Kxb4
Ba6 53. Kc5 Bc8 54. Be2 {Karjakin,S (2757)-Vidit,S (2726) chess24.com INT 2021
1-0}) 25. g3 Be4 26. Nc1 Nc6 27. Be2 h6 28. Rgd1 g5 29. Rb2 {0.35}) 3. d4 cxd4
4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 {Koivisto chooses a very unusual line after a
huge amount of analysis: in my day (pre-computer-age) seeing this move on the
board would be a sure sign you were playing a weak player!} e5 7. Nde2 Nc6 8.
O-O Be6 9. Kh1 Be7 10. f4 exf4 11. Nxf4 Ne5 12. Be3 O-O 13. a4 {[#]} Qa5 $146 (
{Relevant:} 13... Rc8 14. a5 Rc6 15. Ncd5 Re8 16. b3 Nxd3 17. Qxd3 Bxd5 18.
Nxd5 Nxd5 19. exd5 Rc8 20. Bd4 Qd7 21. c4 Bf8 22. Rae1 g6 23. h3 Bg7 24. Bxg7
Kxg7 25. Qd4+ Kg8 26. Qb6 h5 27. Rxe8+ Rxe8 28. Rf6 Re1+ 29. Kh2 Qe7 30. Qxd6
Qe3 31. Rf3 Qg1+ 32. Kg3 Qd4 33. Qf4 h4+ 34. Qxh4 Re4 35. Qd8+ Kg7 36. Qc7 {
1-0 (36) Karjakin,S (2743)-Svidler,P (2683) Lichess.org INT 2022}) 14. Bg1 Rac8
15. Nxe6 fxe6 16. Ne2 d5 17. exd5 Nxd3 18. Qxd3 Qxd5 19. Qh3 Ne4 20. Nd4 Bf6
21. Nxe6 Rfe8 22. Nf4 Qc4 23. c3 Nd2 24. Rf2 Ne4 25. Re2 Nxc3 26. Rxe8+ Rxe8
27. Nh5 Ne4 28. Qd7 Qf7 29. Nxf6+ Nxf6 30. Qd3 Qd5 31. Qc2 Qe4 32. Qc3 h6 33.
a5 Kf7 34. Qb3+ Kg6 35. Rf1 Kh7 {0.25}) (1... e5 2. Nf3 (2. f4 {[d=53/95,
435324Mn]} exf4 3. Nf3 Nf6 {A system that Komodo Dragon was very keen on
during its analysis although it later switched to Fischer's 3...d6} 4. Nc3 d5
5. exd5 Nxd5 6. Bb5+ {[#]} Nc6 $146 ({Predecessor:} 6... c6 7. Qe2+ Be7 8. Nxd5
Qxd5 9. Bc4 Qd6 10. d4 O-O 11. Bxf4 Bh4+ 12. Nxh4 Qxf4 13. Nf3 Nd7 14. O-O Nb6
15. Bb3 Bg4 16. Qe5 Qxe5 17. Nxe5 Be6 18. Bxe6 fxe6 19. Rxf8+ Rxf8 20. Re1 Re8
21. c3 Re7 22. g4 Kf8 23. g5 Ke8 24. Re3 Nd7 25. Nc4 Kd8 26. Rh3 Nf8 27. Ne5 g6
28. Re3 Nd7 29. Ng4 Kc7 30. Kg2 Kd6 31. h4 Rf7 32. Re1 Rf8 33. Kg3 Rf7 34. Ne3
Re7 35. Ng4 Rf7 36. b3 {Martinez Fernandez,A (2356)-Sole Pijuan,F (2186)
Linares 2021 1-0}) 7. O-O Nxc3 8. bxc3 Bd6 9. Qe2+ Be6 10. Nd4 Bc5 11. Bxc6+
bxc6 12. Rxf4 O-O 13. d3 Re8 14. Qf2 Qd7 15. Be3 Bd6 16. Rh4 c5 17. Nxe6 Rxe6
18. Bxc5 Rae8 19. Bxd6 cxd6 20. Rc1 Re2 21. Qf3 h6 22. Rf4 Qc7 23. Rf1 f6 24.
Qd5+ Kh8 25. c4 Qb6+ 26. d4 Qb2 27. Qxd6 Qxc2 28. Qc6 R8e6 29. Qb7 Qxa2 30. c5
a5 31. h4 Re7 32. Qa8+ Re8 33. Qf3 a4 {-0.62}) 2... Nc6 (2... Nf6 {[d=52/97,
469247Mn]} 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 {Koivisto chooses the same
line with which Magnus Carlsen tested out Nepo in the World Championships.
Nepo was really well-prepared!} Bd6 7. O-O O-O 8. Re1 Bf5 9. c4 c6 10. Qb3 Qd7
11. cxd5 cxd5 12. Nc3 Nxc3 13. Bxf5 Qxf5 14. bxc3 b6 15. Qb5 Qd7 16. a4 Rc8 {
[#]} (16... Qxb5 17. axb5 a5 18. Nh4 g6 19. g4 Nd7 20. Ng2 Rfc8 21. Bf4 Bxf4
22. Nxf4 Rxc3 23. Nxd5 Rd3 24. Re7 Nf8 25. Nf6+ Kg7 26. Ne8+ Kg8 27. d5 a4 28.
Nf6+ Kg7 29. g5 a3 30. Ne8+ Kg8 31. Nf6+ Kg7 32. Ne8+ Kg8 33. Nf6+ {1/2-1/2
(33) Carlsen,M (2855)-Nepomniachtchi,I (2782) Dubai 2021}) 17. Ba3 $146 ({
Predecessor:} 17. Bd2 Qxb5 18. axb5 a5 19. bxa6 Nxa6 20. Rab1 Rc6 21. Rb3 Nc7
22. Ne5 Bxe5 23. dxe5 b5 24. Rd1 Ra2 25. g3 Kf8 26. Be3 Ke7 27. Bd4 Ke6 28. Kf1
h5 29. h4 Raa6 {1/2-1/2 (29) Schakel,C (2433)-Serner,A (2409) ICCF email 2019})
17... Bxa3 18. Rxa3 Nc6 19. Ra2 Re8 20. g3 Rad8 21. Rxe8+ Qxe8 22. Re2 Qd7 23.
h4 g6 24. h5 gxh5 25. Nh4 Ne7 26. Re5 Qxb5 27. axb5 Ng6 28. Rxh5 Nxh4 29. Rxh4
{0.43}) 3. Bb5 (3. Bc4 Bc5 {[d=49/94, 193689Mn] Koivisto's favourite move
order. Komodo Dragon preferred 3...Nf6} (3... Nf6 {[d=49/86, 190365Mn]} 4. Ng5
{[d=64/116, 1893340Mn] never impresses the engines much!} d5 5. exd5 Na5 6.
Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 9. Nf3 Bd6 10. O-O Nf4 11. Re1 Nxd3 12. cxd3
O-O 13. Nc3 c5 14. b3 Nc6 15. Ba3 Bg4 16. h3 Bxf3 17. Qxf3 Nd4 18. Qd1 f5 {[#]}
19. Na4 $146 ({Predecessor:} 19. Rc1 Qg5 20. Kh1 Rf6 21. Nd5 Rg6 22. Rg1 Qh4
23. Bxc5 Bxc5 24. Rxc5 Re8 25. Qc1 Nf3 26. Rc8 Rd8 27. Rxd8+ Qxd8 28. gxf3
Rxg1+ 29. Kxg1 Qxd5 30. Qc4 Qf7 31. Qc8+ Qf8 32. Qe6+ Qf7 33. Qxe5 Qd7 34. d4
h6 35. d5 Kh7 36. Qe6 Qc7 37. Qxf5+ Kh8 38. Kg2 Qc5 39. Qe5 a5 40. d4 Qc2 41.
d6 Qg6+ 42. Kh2 Qf7 43. Kg3 Qg6+ 44. Kf4 Qf7+ 45. Ke3 a4 46. Qe7 {1-0 (46)
Sindarov,J (2609)-Cheparinov,I (2664) Warsaw 2021}) 19... Qg5 20. Bxc5 Bxc5 21.
Nxc5 Rf6 22. Re3 Rh6 23. Kh2 Rg6 24. Qf1 Nc2 25. Rc1 Nxe3 26. dxe3 h6 27. b4
Rd8 28. a3 Qf6 29. Rc4 Qd6 30. e4 f4 31. a4 Qe7 32. Qe2 a6 33. Qf3 Kh7 34. a5
Rc6 35. Qd1 Rg6 36. d4 Rxd4 {0.33}) 4. d3 Nf6 5. O-O a6 6. h3 d6 7. c3 O-O 8.
a4 h6 9. Re1 Ba7 (9... a5 {Koivisto's favourite line when playing 3...Nf6! :)}
10. d4 Bb6 11. Bb5 {[#]} exd4 $146 ({Predecessor:} 11... Bd7 12. Be3 exd4 13.
cxd4 Re8 14. d5 Bxe3 15. Rxe3 Ne5 16. Nxe5 Rxe5 17. Nc3 c6 18. Bc4 cxd5 19.
Nxd5 Nxd5 20. Bxd5 Bc6 21. f4 Re7 22. Raa3 Bxd5 23. Qxd5 Qd7 24. Qd4 Rae8 25.
Rg3 f6 26. Qxf6 Kh8 27. Qf5 Qxf5 28. exf5 Rf8 29. Rgd3 Rxf5 30. Rd4 Re2 31. b4
b6 32. bxa5 bxa5 33. Rxd6 Re4 34. g3 Re2 35. Rdd3 Rf7 36. Rf3 Rb7 37. Rf2 Rxf2
38. Kxf2 Rb4 39. Kf3 Kh7 40. Kg4 Kg6 41. Kf3 {Langeveld,R (2679)-Chytilek,R
(2688) ICCF email 2017 1/2-1/2}) 12. cxd4 d5 13. e5 Ne4 14. Nc3 Bf5 15. Bxc6
bxc6 16. Be3 Nxc3 17. bxc3 Qe7 18. Nd2 c5 19. Nf1 cxd4 20. cxd4 c5 21. dxc5
Bxc5 22. Bxc5 Qxc5 23. Rc1 Qb4 24. Ne3 Be6 25. Nxd5 Bxd5 26. Qxd5 Qxa4 27. e6
fxe6 28. Rxe6 Kh8 29. Rxh6+ {0.16}) 10. Nbd2 Be6 11. Bxe6 fxe6 12. Nf1 Nh5 13.
b4 Nf4 14. Ra2 Qe8 15. Kh2 Qf7 {A very topical game: Alireza just fell sort of
beating Radjabov in this line at the 2022 Candidates!} 16. Rb2 {[#]} ({
Relevant:} 16. Be3 Bxe3 17. Nxe3 Kh8 18. Ng4 Ne7 19. Ng1 Neg6 20. g3 Nh5 21.
Kg2 Nf6 22. Nf3 Qd7 23. Nfh2 Qc6 24. Qb3 Rae8 25. h4 Nh5 26. Re3 b5 27. Nf3 Qd7
28. Qd1 Nf6 29. Nfh2 Qc6 30. Ra3 Kh7 31. Kg1 Rf7 32. axb5 axb5 33. d4 Ref8 34.
Ra2 Qc4 35. Rb2 Ra8 36. Rf3 Raf8 37. Re3 Ra8 38. Nxf6+ gxf6 39. Nf3 Ne7 40. Nd2
Qc6 41. dxe5 fxe5 42. Rf3 Rg7 43. Kh2 Qe8 44. Qb3 Qg6 45. Ra2 Rxa2 {Firouzja,A
(2793)-Radjabov,T (2753) Madrid 2022 1/2-1/2 (93)}) 16... Ng6 $146 ({
Predecessor:} 16... Kh7 17. Rc2 b5 18. Bxf4 Qxf4+ 19. Kg1 Bb6 20. a5 Ba7 21.
Rd2 Rf7 22. N1h2 Raf8 23. Kh1 Qf6 24. Ng4 Qe7 25. Ngh2 Kh8 26. Rc2 Kg8 27. Rf1
Qe8 28. Re1 Kh8 29. Qb1 Rf4 30. Qa2 Qe7 31. Rb1 Kg8 32. c4 Qd7 33. cxb5 axb5
34. Qb3 Nd4 35. Nxd4 Bxd4 36. f3 Rb8 37. Nf1 Rf7 38. Nd2 c5 39. Qa3 Kh7 40. Nb3
Be3 41. Re2 Bf4 42. bxc5 b4 43. Qa2 Qd8 44. cxd6 Qxd6 45. Rc2 Qd8 46. Rc6 {
Rodriguez Perez,R (2212)-Viver Ruiz,J (2270) ICCF email 2021 0-1 (65)}) 17. Kg1
Nf4 18. Bxf4 Qxf4 19. N1h2 Qf6 20. Kh1 Bb6 21. g3 Rf7 22. Rf1 Raf8 23. Kg2 Ba7
24. Qe2 Qg6 25. b5 Na5 26. d4 axb5 27. axb5 exd4 {0.30}) 3... a6 {[d=53/89,
212451Mn] Let's remember the happy days when the Berlin didn't exist!} 4. Ba4
Be7 5. O-O Nf6 6. Re1 b5 7. Bb3 O-O 8. h3 Bb7 9. d3 d6 10. a3 Nb8 11. Nbd2 Nbd7
12. Nf1 Re8 13. Ng5 d5 14. exd5 Bxd5 15. Bxd5 Nxd5 16. Qf3 ({Relevant:} 16. Qh5
Bxg5 17. Bxg5 f6 18. Bd2 Qe7 19. Ng3 Qf7 20. Qf3 Nf8 21. Nf5 Ne7 22. Nxe7+ Qxe7
23. a4 Rab8 24. axb5 axb5 25. Ra6 Qd7 26. Rea1 Ne6 27. Be3 Rbd8 28. Qc6 Qxc6
29. Rxc6 Kf7 30. Ra5 Rb8 31. Raa6 Rb7 32. g3 Nd8 33. Rc5 Ne6 34. Rcc6 Nd8 35.
Rc5 Ne6 36. Rcc6 {1/2-1/2 (36) Nakamura,H (2736)-Carlsen,M (2863) chess24.com
INT 2020}) 16... Bxg5 17. Bxg5 Qxg5 18. Qxd5 Nb6 19. Qb7 Qd8 {[#]} 20. b3 $146
({Predecessor:} 20. Qf3) 20... Re6 21. a4 Nd5 22. Ne3 c6 23. axb5 Nxe3 24. Rxe3
cxb5 25. c4 Rb8 26. Qd5 Qxd5 27. cxd5 Rd6 28. Rxe5 Rbd8 29. Kf1 f6 30. Re7 Rxd5
31. Rxa6 Rxd3 32. Raa7 Rd1+ 33. Ke2 R1d2+ 34. Kf3 {0.43}) (1... d5 2. exd5 Qxd5
3. Nc3 Qd6 {[d=56/92, 775204Mn] Koivisto slightly prefers this to 3...Qa5} (
3... Qa5 {[d=50/90, 234513Mn]} 4. d4 Nf6 5. Nf3 Bf5 6. Bd2 c6 7. Bc4 e6 8. Ne4
Qd8 9. Ng3 Be4 10. Nxe4 Nxe4 11. Be3 {[#]} Nf6 $146 ({Predecessor:} 11... Bb4+
12. c3 Nxc3 13. bxc3 Bxc3+ 14. Bd2 Bxa1 15. Qxa1 Nd7 16. O-O O-O 17. Bd3 h6 18.
Bb1 Nf6 19. Qb2 Qb6 20. Qc2 Rad8 21. Bf4 Rfe8 22. Be5 Kf8 23. Bxf6 gxf6 24. Qh7
Ke7 25. Qxh6 Rh8 26. Qf4 Qb4 27. Be4 Qd6 28. Qe3 Rh5 29. g3 Ra5 30. Rb1 Rd7 31.
Rb2 Qa3 32. Qe2 a6 33. Kg2 Rb5 34. Rc2 Rb4 35. h4 Qa5 36. Bd3 Qh5 37. Qe1 a5
38. Rc5 Rd5 39. Rxa5 Rbxd4 40. Nxd4 Rxa5 41. Qb4+ {Gunajew,R (2262)-Berenguer
Martinez,J (2025) Mondariz 2004 1-0}) 12. O-O Be7 13. c3 O-O 14. g3 Qc7 15. Qe2
Nbd7 16. Rad1 Bd6 17. Rfe1 a6 18. Bb3 b5 19. Bc2 h6 20. Bc1 c5 21. dxc5 Bxc5
22. Bf4 Qb7 23. Ne5 Rad8 24. Nxd7 Rxd7 25. Rxd7 Nxd7 26. Rd1 Nb6 27. Be5 Nd7
28. Bd4 {0.98}) 4. Nf3 Nf6 5. d4 c6 6. Be2 Bg4 7. h3 Bxf3 8. Bxf3 e6 9. g3 Be7
10. O-O O-O 11. Ne4 Nxe4 12. Bxe4 {[#]} Qc7 $146 ({Predecessor:} 12... Nd7 13.
c3 Nf6 14. Bg2 Rfe8 15. Qb3 Qd7 16. Rd1 h6 17. c4 Rac8 18. Be3 a6 19. Qa4 Bd6
20. Rd2 Qe7 21. Rad1 Rcd8 22. Qb3 Rd7 23. a3 Rdd8 24. Qc3 Rc8 25. b4 Red8 26.
Qb3 Rd7 27. Rb1 Bb8 28. a4 b5 29. Rc2 Rdd8 30. Rbc1 Qd7 31. cxb5 cxb5 32. Bc6
Qe7 33. axb5 axb5 34. Bxb5 Rxc2 35. Rxc2 Nd5 36. Bd2 Bd6 37. Bc6 Nxb4 38. Bxb4
Bxb4 39. Qc4 Qd6 40. Rb2 Rc8 41. d5 exd5 42. Qxb4 {Bjerre,J (2542)-Nihal,S
(2620) chess24.com INT 2021 1/2-1/2 (74)}) 13. c3 Nd7 14. Bc2 Nf6 15. Re1 Rfd8
16. Qf3 Rac8 17. Bf4 Bd6 18. Bg5 Be7 19. h4 c5 20. dxc5 Bxc5 21. Rad1 h6 22.
Bc1 Rxd1 23. Bxd1 Rd8 24. Bb3 a5 25. Kg2 Be7 26. g4 Nd5 27. g5 g6 28. gxh6 Bxh4
{0.87}) (1... d6 {[d=49/87, 151929Mn]} 2. d4 Nf6 3. Nc3 e5 (3... g6 {[d=44/95,
149550Mn]} 4. Be3 a6 5. Nf3 Bg7 6. Qd2 O-O 7. Bh6 c5 8. O-O-O cxd4 9. Nxd4 Bxh6
10. Qxh6 Nc6 11. h4 {[#]} Ng4 $146 ({Predecessor:} 11... Qb6 12. Nd5 Nxd5 13.
Nxc6 bxc6 14. exd5 Bf5 15. h5 Qxf2 16. Bd3 Bxd3 17. Rxd3 g5 18. Qxg5+ Kh8 19.
dxc6 f6 20. Qe3 Qxg2 21. Rg1 Qh2 22. Rg3 Rae8 23. Rd1 Qxh5 24. Rdg1 Qf7 25. Qh6
Rg8 26. Rxg8+ Rxg8 27. Rxg8+ Qxg8 28. Qe3 Qxa2 29. Qb6 {1-0 (29) Seidl,A (2014)
-Schelberg,M (1570) GER email 2018}) 12. Qd2 Qb6 13. f3 Qxd4 14. Qxd4 Nxd4 15.
Rxd4 Nf6 16. Nd5 Nxd5 17. exd5 f5 18. a4 b5 19. a5 Kf7 20. b3 Bd7 21. Kb2 Rac8
22. Bd3 Kf6 23. Re1 Rc7 24. g4 h6 25. Ka3 Rfc8 26. Kb4 g5 27. gxf5 Bxf5 28.
Bxf5 Kxf5 {0.77}) 4. Nf3 Nbd7 {Once again, Koivisto (just like Komodo Dragon)
prefers the Philidor to the Pirc!} 5. Bc4 Be7 6. O-O c6 7. a4 O-O 8. h3 Qc7 9.
Re1 Re8 10. Ba2 h6 11. Be3 Nf8 12. d5 ({Relevant:} 12. Qd3 Ng6 13. a5 Nh5 14.
Ne2 Bf8 15. d5 c5 16. Qd2 Qd8 17. Bc4 Bd7 18. Kh2 Nh4 19. Nxh4 Qxh4 20. Nc3
Reb8 21. Bb5 Qd8 22. Qe2 Nf4 23. Qf3 Ng6 24. Bxd7 Qxd7 25. Qg4 Qe8 26. h4 Kh7
27. g3 Be7 28. Reb1 b5 29. axb6 axb6 30. Rxa8 Rxa8 31. b4 Rb8 32. Qe2 Qc8 33.
bxc5 bxc5 34. Ra1 Kg8 35. Ra7 Qd8 36. Qg4 Kh7 37. Qd7 Qxd7 38. Rxd7 h5 39. Bg5
f6 40. Bc1 Kg8 41. g4 Kf7 {Rodshtein,M (2673)-Moussard,J (2601) Skopje 2019
CBM 189 [Fernandez,D] 1-0 (73)}) 12... Bd7 13. Nd2 Ng6 14. Bb3 {[#]} Rec8 $146
({Predecessor:} 14... Qc8 15. Kh2 Nf4 16. Bxf4 exf4 17. dxc6 bxc6 18. e5 dxe5
19. Rxe5 Qc7 20. Nf3 g5 21. Ne4 g4 22. Rxe7 Rxe7 23. Nxf6+ Kg7 24. Qd4 g3+ 25.
fxg3 fxg3+ 26. Kh1 Qb6 27. Nh5+ Kg6 28. Qf6+ Kxh5 29. Bxf7+ Rxf7 30. Qxf7# {
1-0 (30) Milosevic,J (1694)-Todorovic,M Kragujevac 2011}) 15. Qe2 Bd8 16. a5
Ne7 17. dxc6 bxc6 18. f4 Ng6 19. f5 Nf4 20. Bxf4 exf4 21. Qf3 d5 22. e5 Nh7 23.
Qxf4 Bg5 24. Qf2 Bxd2 25. Qxd2 Bxf5 26. Qf2 Bg6 27. a6 {0.60}) (1... g6 {
[d=47/97, 241366Mn]} 2. d4 Bg7 3. Nc3 c6 4. h3 d6 5. f4 b5 6. Nf3 b4 {[#]} 7.
Na4 $146 ({Predecessor:} 7. Ne2 Nf6 8. Ng3 h5 9. Bd3 h4 10. Ne2 d5 11. e5 Ne4
12. Bxe4 dxe4 13. Ng5 Bf5 14. e6 fxe6 15. Be3 c5 16. dxc5 Nc6 17. Qc1 Qd5 18.
O-O Rd8 19. a3 Qc4 20. Re1 b3 21. cxb3 Qxb3 22. Nc3 Rd3 23. Bd2 Nd4 24. Ngxe4
Nc2 25. Rb1 Nxe1 26. Qxe1 O-O 27. Qd1 Qxd1+ 28. Rxd1 Rfd8 29. Rc1 Rxd2 30. Nxd2
Rxd2 31. c6 Bd4+ 32. Kf1 Bd3+ 33. Ke1 Rxg2 34. c7 Be3 35. c8=Q+ Kf7 36. Ne2
Rxe2+ {Nowicki,B (2251)-Krasenkow,M (2633) Warsaw 2013 0-1}) 7... Nf6 8. Bd3
O-O 9. a3 a5 10. e5 Nd5 11. c4 bxc3 12. bxc3 Nd7 13. Rb1 Ba6 14. O-O Bxd3 15.
Qxd3 Rb8 16. Bd2 Rxb1 17. Rxb1 Qa8 18. c4 Nc7 19. c5 dxc5 20. dxc5 Rd8 21. Qc2
Nb5 22. Ra1 Nf8 23. Nb6 Qa7 24. Qe4 Ne6 25. Qxc6 Nbd4 26. Nxd4 Nxd4 {New game})
(1... Nf6 {[d=51/90, 238527Mn]} 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6.
Nc3 Be7 7. Bd3 Nc6 8. Nge2 {No 4 Pawns for Koivisto but this system is also
known to be awkward for Black.} Bg4 9. Be3 ({Relevant:} 9. f3 Bh5 10. Be3 O-O
11. b3 Bh4+ 12. Bf2 Bxf2+ 13. Kxf2 Qh4+ 14. g3 Qf6 15. Be4 Rae8 16. Nf4 Bg6 17.
Nxg6 fxg6 18. Bxc6 bxc6 19. Qd3 c5 20. dxc5 Nd7 21. Rae1 Ne5 22. Qd5+ Kh8 23.
Kg2 c6 24. Qd1 dxc5 25. Rhf1 Rd8 26. Qc2 Nxf3 27. Rd1 Rxd1 28. Qxd1 Qxc3 29.
Rxf3 Qxf3+ 30. Qxf3 Rxf3 31. Kxf3 Kg8 32. Kf4 Kf7 33. Ke5 Ke7 34. g4 g5 35. Kf5
h6 36. Ke5 g6 37. a3 a6 38. b4 cxb4 {Nakamura,H (2736)-Bortnyk,O (2598) Chess.
com INT 2020 1/2-1/2 (77)}) 9... Bf6 10. f3 Bh5 11. O-O Bg6 12. Bf2 Bxd3 13.
Qxd3 O-O 14. b3 {[#]} Nb4 $146 ({Predecessor:} 14... g6 15. d5 Ne5 16. Qc2 Nbd7
17. Ne4 Bg7 18. Rad1 a5 19. h3 f5 20. N4c3 Re8 21. f4 Nf7 22. Nb5 Nc5 23. Bd4
Bxd4+ 24. Nexd4 Qd7 25. Rfe1 Re4 26. Ne6 c6 27. Rxe4 Nxe4 28. Nc3 cxd5 29. cxd5
Rc8 30. Nxe4 fxe4 31. Qxe4 Nh6 32. Kh2 Qb5 33. a4 Qxb3 34. Rb1 Qc3 35. Ng5 Nf5
36. Qe6+ Kh8 37. Qf7 Qg3+ 38. Kh1 Qh4 39. Qf6+ Kg8 40. Qe6+ {1-0 (40) Fish,G
(2440)-Petrov,J (2360) Buenos Aires 1992}) 15. Qd2 d5 16. c5 Nc8 17. Nf4 Bg5
18. Be3 Bxf4 19. Bxf4 a6 20. Nb5 axb5 21. Qxb4 Na7 22. Rfd1 h6 23. a4 Qd7 24.
h3 b6 25. cxb6 cxb6 26. Rdc1 Rfc8 27. Kh2 Qf5 28. Qd2 bxa4 29. bxa4 {New game})
2. Nc3 {[d=58/105, 1304191Mn]} d5 3. d4 Nf6 4. Bg5 dxe4 {The line Koivisto
chooses against this line is disappointingly anodyne. It has played against me
and I considered it a clear attempt to draw as White!} 5. Nxe4 Be7 6. Nxf6+
Bxf6 7. Bxf6 Qxf6 8. Nf3 c5 (8... O-O 9. Qd2 b6 10. O-O-O Bb7 11. Ne5 c5 12.
Bb5 a6 13. Be2 b5 14. Bf3 Bxf3 15. gxf3 Rd8 16. Ng4 Qe7 17. Qf4 Nc6 18. dxc5
Qxc5 19. Nh6+ gxh6 20. Rhg1+ Kf8 21. Qxh6+ Ke7 22. Qh4+ Kf8 23. Qh6+ Ke7 {
1/2-1/2 (23) Bacallao Alonso,Y (2532)-Sadler,M (2625) Barcelona 2011}) 9. c3
cxd4 10. Qxd4 Qxd4 11. Nxd4 Bd7 {[#]} 12. f4 $146 ({Predecessor:} 12. O-O-O Nc6
13. Nb5 Ke7 14. Be2 Rhd8 15. Rd2 Ne5 16. Rhd1 Bxb5 17. Bxb5 Rxd2 18. Rxd2 g5
19. Be2 {1/2-1/2 (19) Mastrovasilis,D (2595)-Sedlak,N (2586) Kragujevac 2013})
12... Nc6 13. Nf3 h6 14. Bd3 Ke7 15. h4 Rhd8 16. O-O-O Rac8 17. Rhe1 a5 18. Be4
b6 19. g4 Be8 20. Rxd8 Rxd8 21. g5 f6 22. Kc2 Kd6 23. Rg1 hxg5 24. hxg5 Bh5 25.
Nd2 Ne7 26. Rh1 Bg6 27. Bxg6 Nxg6 28. gxf6 gxf6 {0.42} *
[Event "#3 - 1.d4 d5"]
[Site "?"]
[Date "2022.07.15"]
[Round "?"]
[White "Koivisto Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "A40"]
[Annotator "gmmat"]
[PlyCount "55"]
1. d4 d5 {[d=58/89, 761864Mn]} 2. c4 e6 (2... c6 {[d=56/115, 1999226Mn]} 3.
cxd5 (3. Nc3 {[d=53/97, 515824Mn]} e6 (3... Nf6 {[d=49/102. 314034Mn]} 4. Nf3
dxc4 {[d=51/98, 287889Mn] Not Koivisto's first move in this position.} 5. a4 e6
6. e3 Be7 ({Relevant:} 6... c5 7. Bxc4 Nc6 8. O-O Be7 9. Qc2 O-O 10. Rd1 Bd7
11. dxc5 Bxc5 12. b3 Qe7 13. Bb2 Rfd8 14. Ne4 Nxe4 15. Qxe4 Be8 16. Qg4 g6 17.
Ng5 h5 18. Qg3 Rxd1+ 19. Rxd1 Rd8 20. Rf1 Bd6 21. f4 Ba3 22. Ba1 Nb8 23. f5 Bd6
24. fxe6 f6 25. Bxf6 {1-0 (25) Le,Q (2709)-Van Foreest,J (2714) Oslo 2022}) 7.
Bxc4 c5 8. Qe2 cxd4 9. exd4 O-O 10. O-O Na6 11. Rd1 Nb4 12. a5 a6 13. Ne5 Bd7
14. Ne4 Nxe4 15. Qxe4 Bc6 {[#]} 16. Nxc6 $146 ({Predecessor:} 16. Qg4 Bd5 17.
Bh6 Bf6 18. Ra3 Bxc4 19. Nxc4 Kh8 20. Bf4 Nd5 21. Be5 Rc8 22. Nd6 Rc7 23. Rg3
Rg8 24. Qh5 Qd7 25. h4 Bd8 26. Ne4 Rc8 27. Nc5 {1-0 (27) Reichert,T (2364)
-Motyka,R (2069) ICCF email 2019}) 16... bxc6 17. g3 Qc8 18. h4 Rd8 19. Qg4 Nd5
20. h5 Nf6 21. Qf3 h6 22. Bf4 Nd5 23. Be5 Bd6 24. Qg4 Bxe5 25. dxe5 Qb7 26. Qe4
Rab8 27. Qe2 Ra8 28. Rac1 Qe7 29. Bxa6 Nb4 30. Rxd8+ Qxd8 31. Bb7 Rxa5 {
New game}) 4. Nf3 Nf6 5. Bg5 (5. e3 Nbd7 6. Qc2 {Koivisto chose this (instead
of 5.Bg5) via the move order 3.Nc3 Nf6 :)} Be7 (6... Bd6 {Koivisto chose this
via the 3...c6 move order :)} 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O a6 10. e4 e5 11.
Rd1 exd4 ({Relevant:} 11... Qc7 12. Bg5 exd4 13. Rxd4 Ne5 14. Bxf6 gxf6 15.
Nxe5 Bxe5 16. Rd3 b5 17. Bb3 Bxh2+ 18. Kf1 Be5 19. Ne2 f5 20. f4 Bg7 21. e5 c5
22. Bd5 Rb8 23. Rc1 c4 24. b3 Qe7 25. bxc4 bxc4 26. Bxc4 Bb7 27. Rh3 Be4 28.
Bd3 Rb4 29. a3 Bxd3 30. Qxd3 Re4 31. Qxa6 Rd8 32. Rc8 Bf8 33. Rg3+ Kh8 34. Rxd8
Qxd8 35. Rd3 Qh4 36. Qc8 Qh1+ 37. Kf2 Qh4+ 38. Rg3 Qh6 39. Qd8 Rc4 40. Rh3 Qg7
41. Nd4 {Aronian,L (2781)-Dubov,D (2714) chess24.com INT 2021 1-0}) 12. Nxd4
Qc7 13. h3 Re8 {[#]} 14. Be3 $146 ({Predecessor:} 14. a4 Nc5 15. f3 Ne6 16. Be3
a5 17. Nce2 Nxd4 18. Bxd4 Nd7 19. f4 Nf8 20. e5 Bb4 21. Ng3 Be6 22. b3 Rad8 23.
Kh2 Bxc4 24. bxc4 Ne6 25. Be3 Bc5 26. Bxc5 Nxc5 27. Qf2 b6 28. Nf5 Rxd1 29.
Rxd1 Rd8 30. Qg3 g6 31. Nd6 f5 32. Rb1 Rf8 33. Qe3 h5 34. Rd1 Ne6 35. Rb1 Nc5
36. Qa3 Kh7 37. Qf3 Ne6 38. Qf2 Nc5 39. Rd1 Ne6 40. Qe3 Kg8 41. c5 Nxc5 42. Nc4
Rd8 43. Rd6 Ne4 {Matlakov,M (2695)-Potkin,V (2625) Yerevan 2014 1/2-1/2}) 14...
h6 15. Rac1 Nc5 16. f3 Nh5 17. Nce2 Ne6 18. Kh1 Be5 19. b3 Nef4 20. Nxf4 Nxf4
21. Qd2 Rd8 22. Qf2 Qe7 23. Ne2 Rxd1+ 24. Rxd1 Nxe2 25. Bxe2 Bc7 26. Bd3 Bd7
27. f4 Rd8 28. Rd2 Be6 29. e5 {0.39}) 7. b3 O-O 8. Bd3 b6 9. O-O Bb7 10. Bb2 h6
({Relevant:} 10... Qc7 11. Rac1 Rac8 12. Rfd1 g6 13. Qe2 Qb8 14. e4 dxe4 15.
Nxe4 c5 16. Neg5 Bxf3 17. Nxf3 cxd4 18. Bxd4 Rfe8 19. Qb2 Rcd8 20. Ne5 Qc7 21.
Be2 Bc5 22. Nxd7 Nxd7 23. b4 Bxd4 24. Rxd4 a5 25. a3 axb4 26. axb4 Ne5 27. c5
Nc6 28. Rxd8 Rxd8 29. cxb6 Qxb6 30. b5 Nd4 31. Bf1 e5 32. Qc3 Rb8 33. Qc5 Qf6
34. Qc7 Rb6 35. Rc5 Re6 36. h3 Kg7 37. Bc4 Rd6 38. Bxf7 Ne2+ 39. Kf1 Ng3+ 40.
Ke1 {Vidit,S (2727)-Shankland,S (2708) Kolkata 2021 0-1}) 11. Rfd1 Rc8 12. Rac1
Re8 13. h3 {[#]} Bf8 $146 ({Predecessor:} 13... Bb4 14. a3 Bd6 15. b4 dxc4 16.
Bxc4 b5 17. Bf1 a5 18. bxa5 Qxa5 19. Nd2 Ra8 20. Ra1 Be7 21. Nce4 Qa4 22. Nxf6+
Bxf6 23. Qb1 Be7 24. Rc1 Red8 25. Bc3 Nf6 26. Nb3 Bd6 27. Bd3 Nd5 28. Bd2 Qa7
29. Ba5 Re8 30. Bb4 Bc7 31. Bh7+ Kh8 32. Be4 Qb8 33. Nc5 Bc8 34. Qc2 Kg8 35.
Rab1 Bh2+ 36. Kh1 Bd6 37. Bf3 Qc7 38. Ne4 Nxb4 39. axb4 Bb7 40. Nc5 Bxc5 41.
Qxc5 Ra6 42. Qxb5 cxb5 43. Rxc7 {Heinke,R (2131)-Siebarth,M (1851) GER email
2013 1-0 (66)}) 14. cxd5 exd5 15. Bf5 g6 16. Bd3 Bg7 17. Qe2 Qe7 18. Ba6 Bxa6
19. Qxa6 Nb8 20. Qd3 Ne4 21. Qe2 Nxc3 22. Rxc3 Qe6 23. Rc2 Nd7 24. Ba3 Nf6 25.
Rdc1 {New game}) 5... h6 6. Bxf6 {Koivisto chose this plan a number of times
while Komodo Dragon didn't want to touch it!} (6. Bh4 {[d=48/98, 106282Mn]
Koivisto sometimes chooses 6.Bh4, sometimes 6.Bxf6} dxc4 7. e4 g5 8. Bg3 b5 9.
Ne5 Bb7 (9... Nbd7 {Chosen by Koivisto via the 3...e6 4...Nf6 move order!} 10.
Nxc6 Qb6 11. d5 Bb7 12. a4 a6 13. Be2 Bxc6 14. dxc6 Qxc6 15. e5 Nd5 16. Bf3 Bb4
17. O-O Bxc3 18. axb5 axb5 19. Bxd5 exd5 20. Rxa8+ Qxa8 21. bxc3 {[#]} Qc6 $146
({Predecessor:} 21... Nc5 22. f4 Ne4 23. Bf2 Qc6 24. Bd4 gxf4 25. e6 Rf8 26.
exf7+ Rxf7 27. Qg4 Kf8 28. Rxf4 Rxf4 29. Qxf4+ Ke7 {1/2-1/2 (29) Sitorus,Y
(2423)-Osorio Barahona,J (2376) ICCF email 2020}) 22. e6 fxe6 23. Qh5+ Kd8 24.
Qg6 d4 25. Qg7 Re8 26. Qxd4 e5 27. Qg4 Kc7 28. Ra1 Nc5 29. Qf5 Kb6 30. Qh7 Qe6
31. f3 Re7 32. Qb1 e4 33. fxe4 Qxe4 34. Qb4 {Blitz 10min+5sec}) 10. h4 g4 11.
Nxg4 Nxg4 12. Qxg4 Qxd4 13. Rd1 Qf6 14. a4 h5 15. Qg5 Qxg5 16. hxg5 Bb4 17. Be2
h4 18. Rxh4 Rxh4 19. Bxh4 Nd7 20. Kf1 {[#]} Nc5 $146 ({Predecessor:} 20... Ba6
21. axb5 cxb5 22. Bh5 Nc5 23. g6 fxg6 24. Bxg6+ Kf8 25. Na2 Ba5 26. Bf6 b4 27.
Ke2 Nd3 28. Ke3 Bb6+ 29. Kf3 Bd8 30. Bxd8 Rxd8 31. Nxb4 Ne5+ 32. Ke2 Rxd1 33.
Kxd1 Bb7 34. Bh5 Bxe4 35. f3 a5 36. Na2 {1/2-1/2 (36) Reyes Maldonado,C (2366)
-Figlio,G (2488) ICCF email 2017}) 21. axb5 Bxc3 22. bxc6 Bxc6 23. bxc3 Nxe4
24. Bxc4 a5 25. Rd3 a4 26. f3 Nc5 27. Rd2 a3 28. Ba2 Ba4 29. Bg3 Ra5 30. Bd6
Nb3 31. Rd1 Nc5 32. Rd4 Bc2 33. Kf2 Nd3+ {0.28}) 6... Qxf6 7. e3 Nd7 8. Bd3
dxc4 9. Bxc4 g6 10. e4 Qe7 11. e5 Bg7 12. O-O O-O 13. Re1 b5 ({Relevant:} 13...
b6 14. Qe2 Rd8 15. Rad1 Bb7 16. h4 a6 17. a3 a5 18. Ba2 Rac8 19. Bb1 c5 20. d5
exd5 21. Nxd5 Bxd5 22. Rxd5 Nf8 23. Ba2 Rxd5 24. Bxd5 Rd8 25. Rd1 Ne6 26. Qc4
Kf8 27. Qe4 Nd4 28. Nxd4 cxd4 29. f4 Qxh4 30. Qxd4 Qg4 31. Rd3 Rd7 32. Qxb6
Qxf4 33. Qc5+ Re7 34. Rf3 Bxe5 35. Rxf4 Bxf4 36. Kf1 Bg5 37. Qxa5 Kg7 38. Qc3+
Bf6 39. Qd2 Re5 40. Bf3 h5 41. b4 Re7 42. b5 h4 43. b6 {Le,Q (2739)-Wang,Y
(2699) Ashkhabad 2017 1-0}) 14. Bd3 Bb7 15. Be4 Nb6 16. Rc1 Rac8 17. Qe2 Rfd8
18. Nb1 Nc4 19. h4 h5 20. Rc2 Bh6 {[#]} 21. g3 $146 ({Predecessor:} 21. Nc3 Nb6
22. Nb1 a5 23. Nbd2 a4 24. g3 Kg7 25. Rd1 Rc7 26. Kh2 Nd5 27. Rc5 Nb6 28. Rdc1
Nc4 29. R1xc4 bxc4 30. Qxc4 Kg8 31. Bd3 f5 32. b4 axb3 33. Nxb3 Ra8 34. Qc2 {
1/2-1/2 (34) Cleto,D (2226)-Kerr,G (2239) FICGS email 2019}) 21... a5 22. b3
Nb6 23. Nc3 Rc7 24. Kg2 Rcc8 25. Bd3 c5 26. Nxb5 cxd4 27. Rxc8 Rxc8 28. Nd6 {
0.35}) (3. Nf3 {[d=50/86, 186525Mn]} Nf6 4. cxd5 cxd5 5. Nc3 e6 6. Bg5 Bd7 ({
Relevant:} 6... Be7 7. Bxf6 O-O 8. e3 Bxf6 9. Bd3 Nc6 10. h4 h6 11. Bb1 e5 12.
dxe5 Nxe5 13. Nxe5 Bxe5 14. Qd3 g6 15. h5 Bf5 16. Qd2 Bxb1 17. Rxb1 d4 18. exd4
Qxd4 19. Qxd4 Bxd4 20. hxg6 fxg6 21. Ne4 Rae8 22. f3 Kg7 23. Ke2 Re7 24. b4 Rf5
25. Rbc1 Bb6 26. Rhd1 a5 27. bxa5 Rxa5 28. Rc2 h5 29. Rb1 Bd4 30. Rd2 Bc3 31.
Rc2 Bd4 32. Rb4 Be5 33. a4 Rd5 34. Rb5 Rxb5 35. axb5 Bd4 36. Rc4 {Sunilduth
Lyna,N (2618)-Fedoseev,V (2674) Chess.com INT 2020 1/2-1/2}) 7. e3 {[#]} Bc6
$146 ({Predecessor:} 7... Qb6 8. Rb1 Ne4 9. Bf4 Bb4 10. Nd2 Qa5 11. Ndxe4 dxe4
12. Qd2 Bc6 13. a3 Be7 14. Nxe4 Qf5 15. Nc3 Qg6 16. Bg3 f5 17. d5 Bd7 18. Bc4
O-O 19. Rd1 Kh8 20. Ne2 exd5 21. Bxd5 Nc6 22. O-O Rad8 23. Bc7 Rc8 24. Bg3 Rcd8
25. Qc2 Bc8 26. Nf4 Qf6 27. Ba2 Bd6 28. Nd5 Qh6 29. Bxd6 Rxd6 30. Nf4 Rfd8 31.
h3 Qf6 32. Rxd6 Qxd6 33. Bd5 Ne7 34. Bf3 Qb6 35. Rd1 h6 36. Rxd8+ Qxd8 37. Qc3
{Mamedjarova,T (2309)-Hoang,T (2288) Chess.com INT 2020 1-0}) 8. Bd3 Nbd7 9.
O-O Bd6 10. Qe2 O-O 11. Rfc1 Qb6 12. Rc2 Rfc8 13. Rac1 Qd8 14. Bh4 h6 15. Nd2
Be7 16. h3 a6 17. Nf3 Bd6 18. a3 Qf8 19. Nd2 Be7 20. Qe1 Nb6 21. Ra1 Nbd7 22.
Bg3 Qd8 23. Rac1 Nb6 24. Nf3 Nc4 25. Ne5 Nxe5 26. Bxe5 Ne8 27. Qd1 Bf8 28. Qg4
Nd6 29. Bf4 Kh8 30. h4 Be8 31. Qh3 {0.27}) 3... cxd5 4. Bf4 {Koivisto is
always quite keen on the Exchange Slav: it appears at various times at
different depths.} e6 5. e3 Qb6 6. Qc2 Bd7 7. Nc3 Nf6 8. a3 Nc6 9. Nf3 Nh5 {[#]
} 10. Be5 $146 ({Predecessor:} 10. g3 Nxf4 11. gxf4 Bd6 12. Bg2 O-O 13. Ng5 f5
14. O-O Rac8 15. Qe2 h6 16. Nf3 Na5 17. Rac1 Rc7 18. Ne5 Bxe5 19. fxe5 Rfc8 20.
Rb1 Nc4 21. Rfe1 a5 22. Bxd5 exd5 23. Nxd5 {1-0 (23) Hlavacek,L (1700)
-Aalderink,G (2022) FICGS email 2007}) 10... Nxe5 11. dxe5 g6 12. Bd3 Be7 13.
g3 O-O 14. O-O Rfc8 15. Qd2 Ng7 16. Kg2 Rc7 17. Ne2 Bb5 18. Bxb5 Qxb5 19. Rac1
Rac8 20. Rxc7 Rxc7 21. g4 a6 22. Nfd4 Qd7 23. h3 Qc8 24. f4 Rc4 25. Kg3 Ne8 26.
Rc1 b5 27. Kf2 Qb7 28. b3 Rxc1 29. Qxc1 b4 30. axb4 Bxb4 31. Qc2 {0.41}) (2...
dxc4 {[d=45/83, 128885Mn]} 3. Nf3 e6 4. e3 a6 5. Bxc4 Nf6 6. O-O Nbd7 {A
really unusual move order that however avoids any queen exchange lines with
dxc5!} 7. a4 c5 8. Re1 Qc7 9. Qe2 {[#]} cxd4 $146 ({Predecessor:} 9... Bd6 10.
e4 cxd4 11. e5 Nxe5 12. Nxe5 Bxe5 13. Qxe5 Qxc4 14. Bg5 Bd7 15. Nd2 Qb4 16. Nf3
d3 17. Rad1 h6 18. Bxf6 gxf6 19. Qxf6 Rg8 20. Rxd3 Qe7 21. Qxh6 Bc6 22. g3 Rd8
23. Rxd8+ Qxd8 24. Ne5 Bd5 25. Qh5 Rf8 26. Nd3 Qd6 27. Nf4 Kd7 28. Nxd5 exd5
29. Rd1 Kc6 30. Qg4 Kc7 31. Qg7 Kc6 32. h4 a5 33. Qc3+ Qc5 34. Qd2 Kd6 35. Qh6+
Ke7 36. Qg5+ Ke6 37. h5 f6 38. Qg7 d4 39. h6 {Esipenko,A (2593)-Barseghyan,H
(2466) Manavgat 2018 1-0}) 10. exd4 Bb4 11. Bd2 Bxd2 12. Nbxd2 O-O 13. Ne5 Nd5
14. a5 Nxe5 15. Bxd5 exd5 16. Qxe5 Qxe5 17. Rxe5 Be6 18. Nb3 b6 19. axb6 Rfb8
20. Nc5 Rxb6 21. b3 a5 22. Ra4 Rb4 23. Rxb4 axb4 24. h4 Ra1+ 25. Kh2 Ra2 26.
Kg3 Rd2 27. Nxe6 fxe6 28. Rxe6 {0.53}) 3. Nc3 Nf6 (3... Be7 {[d=53/90,
135417Mn]} 4. Bf4 Nf6 5. Nf3 O-O 6. e3 Nbd7 7. a3 c5 8. cxd5 Nxd5 9. Nxd5 exd5
10. dxc5 Nxc5 11. Be5 Bf6 12. Bxf6 Qxf6 13. Qd4 Qe7 14. Rd1 Bd7 {[#]} 15. Qe5
$146 ({Predecessor:} 15. Be2 Ba4 16. Rd2 Bb3 {1/2-1/2 (16) Novikov,S (2170)
-Osipov,A (2131) LSS email 2017}) 15... Qxe5 16. Nxe5 Be6 17. Nf3 Rfc8 18. Nd4
Bd7 19. h4 a6 20. f3 Ba4 21. Ra1 Nb3 22. Nxb3 Bxb3 23. Bd3 Bc4 24. Ke2 Rc6 25.
Rhc1 Rb6 26. b4 Rc6 27. Bxc4 dxc4 28. Rd1 Re8 29. Rd4 h5 30. a4 g6 31. b5 Rc5
32. bxa6 bxa6 {0.41}) (3... c5 {[d=53/95, 139366Mn]} 4. cxd5 exd5 5. Nf3 Nf6 {
Something of a surprise: 5...Nc6 has been automatic since the beginning of
time!} (5... Nc6 {[d=54/117, 74872Mn]} 6. dxc5 {The favourite line of the
engines. It gives Black no chances for a win but seems to peter out into a
tenable position for Black.} d4 7. Na4 Bxc5 8. Nxc5 Qa5+ 9. Bd2 Qxc5 10. Rc1
Qb6 11. e3 Nf6 12. Qa4 O-O 13. Nxd4 Qxb2 14. Nxc6 bxc6 15. Bc4 Rb8 16. Qc2 Qxc2
17. Rxc2 Bf5 18. Rc1 Ne4 19. Ba5 Rb2 20. O-O Nd2 21. Bxd2 Rxd2 22. Bb3 Rc8 23.
Rc5 Be6 {[#]} 24. h3 $146 ({Predecessor:} 24. Rfc1 Bxb3 25. axb3 Rb2 26. h4
Rxb3 27. Rxc6 Rxc6 28. Rxc6 Rb8 29. Ra6 Rb7 30. Kh2 Kf8 31. g4 Ke8 32. Kg3 Rc7
33. Kf4 h6 34. e4 f6 35. h5 Kf7 36. Ra4 Ke6 37. Ra6+ Kf7 38. f3 Re7 39. Ke3 Rd7
40. Kf4 Re7 41. Kf5 Re5+ 42. Kf4 Re7 {1/2-1/2 (42) Timofeev,A (2337)-Laine,J
(2264) ICCF email 2018}) 24... Bxb3 25. axb3 g6 26. Ra1 Rc7 27. g4 Rb2 28. Rc3
Kg7 29. Ra4 Rb7 30. Rxc6 R2xb3 31. Kh2 R3b5 32. Rca6 h5 33. Kg3 hxg4 34. hxg4
Rb1 35. R6a5 Kf8 36. Rxa7 Rxa7 37. Rxa7 Kg7 38. Ra5 Rc1 39. Kg2 Rc2 {0.68, but
obviously drawn!}) 6. Bg5 Be6 7. Bxf6 Qxf6 8. e4 Nd7 {[#]} ({Relevant:} 8...
dxe4 9. Nxe4 Qf4 10. Bb5+ Nc6 11. Qe2 Be7 12. Rd1 Bd5 13. Nc3 Bxf3 14. gxf3
O-O-O 15. Bxc6 bxc6 16. d5 c4 17. dxc6 Bb4 18. Rxd8+ Rxd8 19. Qe3 Qxe3+ 20.
fxe3 Rd3 21. Ke2 Bxc3 22. bxc3 Rxc3 23. Rd1 Ra3 24. Rd2 Kc7 25. Rd7+ Kxc6 26.
Rxf7 Rxa2+ 27. Kd1 a5 28. Rxg7 Rxh2 29. f4 a4 30. Ra7 Kb5 31. f5 h5 32. e4 Rf2
33. Ke1 Rf4 34. Re7 Kc5 35. Ke2 Kd4 36. e5 Rxf5 37. e6 Kc3 38. Ke3 {
Maghsoodloo,P (2701)-Nihal,S (2652) Ciudad Real 2021 0-1}) 9. exd5 $146 ({
Predecessor:} 9. Nxd5 Bxd5 10. exd5 O-O-O 11. Be2 Kb8 12. O-O Nb6 13. dxc5 Bxc5
14. Qc2 Rxd5 15. Rad1 Rc8 16. Qb1 g6 17. Nd2 Bb4 18. Ne4 Rxd1 19. Rxd1 Qe5 20.
a3 f5 21. axb4 fxe4 22. Bg4 Rc4 23. b3 Rxb4 24. Rd8+ Kc7 25. Rf8 Nd5 26. Rf7+
Kb6 27. Bc8 Ne7 28. Bh3 e3 29. fxe3 Qxe3+ 30. Kh1 Rxb3 31. Qd1 Rc3 32. Qd8+ Kc5
33. Qa5+ b5 34. Qxa7+ Kb4 35. Qxe3 Rxe3 36. Kg1 Kc3 37. Bd7 b4 38. Ba4 h6 {
Martinovic,S (2554)-Kasimdzhanov,R (2659) Germany 2022 0-1}) 9... Bg4 10. dxc5
Bxf3 11. Qxf3 Qxf3 12. gxf3 Bxc5 13. Bh3 O-O-O 14. O-O Kb8 15. Ne4 Bb6 16. Rfd1
Ne5 17. Bg2 Rd7 18. a4 a5 19. f4 Nc4 20. Rab1 Rhd8 21. b4 Rxd5 22. Rxd5 Rxd5
23. bxa5 Bxa5 24. Rxb7+ Kxb7 25. Nf6 Ka7 26. Nxd5 Nb2 27. Ne3 Nxa4 28. Bd5 Nc3
29. Bxf7 Ne2+ 30. Kg2 Nxf4+ 31. Kf3 Bc7 32. Bg8 h5 33. h4 Kb6 34. Ng2 Nxg2 35.
Kxg2 Kc6 {0.67}) (3... c6 {[d=52/105, 162290Mn]} 4. e3 {See the 6.Qc2 lines.} (
4. e4 {[d=57/114, 170762Mn]} dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Ne2
{Same choice as Komodo Dragon.The engines seem to prefer this sl;ightly better
endgame to anything the sharper 8.Be2 has to offer.} (8. Be2 {[d=55/173,
153035Mn]} Na6 9. Ba5 b6 10. Qd6 Bd7 11. Bc3 f6 12. Nf3 Nh6 13. Rd1 Rd8 14. Qa3
Bc8 15. Nd2 Qf4 16. Bh5+ Nf7 17. O-O c5 18. Qa4+ Ke7 19. Rfe1 Rhe8 20. Qc2 Bb7
{[#]} 21. Qxh7 $146 ({Predecessor:} 21. Bf3 Bxf3 22. Nxf3 Rxd1 23. Rxd1 Rd8 24.
Rxd8 Nxd8 25. Qxh7 Kf7 26. Qh5+ Ke7 27. Qh8 Qg4 28. h3 Qg6 29. Nh4 Qh6 30. Qxh6
gxh6 31. Kf1 Nb4 32. Bxb4 cxb4 33. Ke2 Nb7 34. Ng6+ Kd6 35. b3 a5 36. f3 e5 37.
g4 Ke6 38. Nh4 Nd6 39. Ng2 {1/2-1/2 (39) Pierzak,R (2497)-Gerasimov,V (2507)
ICCF email 2015}) 21... Rh8 22. Qg6 Rxh5 23. Qxh5 Rh8 24. Qg6 Qxh2+ 25. Kf1
Qh1+ 26. Ke2 Qxg2 27. Qxg2 Bxg2 28. Rg1 Rh2 29. Nf1 Bxf1+ 30. Rdxf1 g5 31. Rh1
Rxh1 32. Rxh1 e5 33. Rh7 Nc7 34. b4 Ne6 35. bxc5 bxc5 36. a4 Kf8 37. a5 a6 38.
Kd3 f5 39. f3 Ke7 40. Rh1 {0.12}) 8... Na6 9. Bf8 Ne7 10. Bxg7 Nb4 11. Qd6 Nd3+
12. Kd2 Nf5 13. Qxd3 Qxd3+ 14. Kxd3 Nxg7 15. Kc3 c5 16. g4 b6 17. Bg2 Rb8 18.
Nf4 {[#]} Bb7 $146 ({Predecessor:} 18... h5 19. h3 Bb7 20. Bxb7 Rxb7 21. a3 a5
22. f3 {1/2-1/2 (22) Zawadka,Z (2264)-Krawczyk,W (2263) ICCF email 2020}) 19.
Bxb7 Rxb7 20. Rad1 h5 21. g5 Nf5 22. Rhg1 Rg8 23. h3 Nd4 24. h4 Rh8 25. Rd3 Rd7
26. b4 cxb4+ 27. Kxb4 Nc6+ 28. Kb5 Ne5 29. Rxd7 Kxd7 30. Ka6 Nxc4 31. Kxa7 b5
32. g6 fxg6 33. Rxg6 Re8 34. Nxh5 Rf8 35. f4 b4 36. Nf6+ Ke7 37. Ng8+ Kf7 {
Blitz 10min+5sec}) (4. Nf3 Nf6 (4... dxc4 {[d=55/111, 164199Mn]} 5. e3 b5 6. a4
Bb4 7. Bd2 a5 8. axb5 Bxc3 9. Bxc3 cxb5 10. b3 Bb7 11. bxc4 b4 12. Bb2 Nd7 13.
Bd3 Ngf6 14. O-O Qc7 15. Nd2 O-O 16. Bc2 h6 ({Relevant:} 16... e5 17. h3 Rfe8
18. d5 Nc5 19. f4 e4 20. Bxf6 gxf6 21. Qg4+ Kh8 22. Qf5 Ra6 23. Qh5 Bc8 24.
Rfb1 f5 25. Qd1 Rg8 26. Nf1 Bd7 27. Qd4+ f6 28. Kh2 Qb6 29. Ng3 Rg6 30. Nf1 a4
31. Qd2 b3 32. Bd1 Qa5 33. Qd4 Qb6 34. Bh5 Rg8 35. Be2 Qd6 36. Nd2 Be8 37. Qb2
Rb6 38. Qa3 Rb7 39. Rg1 Rbg7 40. g3 Qb6 41. Nb1 Nd3 42. Bxd3 Qxe3 43. Qb2 exd3
44. Qd2 Rxg3 45. Qxe3 Rxe3 46. Rxg8+ {Gukesh,D (2621)-Erigaisi,A (2627)
Kolkata 2021 0-1}) 17. h3 {is now more promising than 17.f3.} Rfd8 18. e4 {[#]}
a4 $146 ({Predecessor:} 18... Nb6 19. d5 Nxc4 20. Bxf6 gxf6 21. Qg4+ Kf8 22.
Nxc4 Qxc4 23. Rac1 Rac8 24. Qf4 Ke7 25. Qxh6 e5 26. Rfd1 Rd6 27. Bb1 Qb5 28. h4
Qe2 29. Bd3 Qg4 30. f3 Qg8 31. Qe3 Rxc1 32. Rxc1 Qd8 33. Ra1 Qc7 34. Qa7 f5 35.
Rxa5 fxe4 36. Rc5 Qb6 37. Qxb6 Rxb6 38. Bxe4 Kd6 39. Ra5 b3 40. h5 b2 41. Bb1
Bxd5 42. h6 Rb8 43. h7 {1-0 (43) Voll,A (2567)-Achilles,E (2439) ICCF email
2017}) 19. Rxa4 Rxa4 20. Bxa4 Bxe4 21. Nxe4 Nxe4 22. Qc2 Qf4 23. Bc1 Qf5 24.
Re1 Ndf6 25. Bb2 Qf4 26. Rd1 Rb8 27. Bb3 Nc3 28. Rd3 Nfe4 29. c5 Rd8 30. c6 Rc8
31. d5 exd5 32. Bxd5 Nxd5 33. Rxd5 {0.32}) 5. Bg5 h6 {[d=51/92, 169864Mn] is
Koivisto's first choice in this position.} (5... dxc4 {[d=63/137, 993139Mn]
Not Koivisto's first choice} 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5
Nbd7 11. exf6 Bb7 12. h4 {Very little-played though you are starting to see
some elite games (of course!)} Nxf6 13. Qf3 Be7 14. O-O-O ({Relevant:} 14. Be2
Nd5 15. Bxe7 Qxe7 16. Nxd5 cxd5 17. h5 O-O-O 18. Qe3 f6 19. O-O-O e5 20. f4
Rde8 21. Rhe1 Kb8 22. g4 exf4 23. Qxf4+ Qc7 24. Qxc7+ Kxc7 25. Bf3 Rxe1 26.
Rxe1 Kd6 27. a3 a5 28. Kd2 Bc8 29. Rg1 Be6 30. Ke3 Ke7 31. Kf4 b4 32. axb4 axb4
33. Ra1 Rc8 34. Ra7+ Kf8 35. h6 Kg8 36. Bd1 c3 37. bxc3 Rxc3 38. Re7 Rd3 39.
Re8+ Kf7 40. h7 {1-0 (40) Keymer,V (2655)-Mamedyarov,S (2776) Berlin 2022})
14... Nd5 15. Bxe7 Qxe7 {[#]} 16. Nxd5 $146 ({Predecessor:} 16. Ne4 O-O-O 17.
g3 Nb4 {1/2-1/2 (17) Ralls,R (2503)-Noble,M (2456) LSS email 2011}) 16... cxd5
17. Qf4 Kd7 18. Be2 a5 19. h5 a4 20. Rh3 a3 21. b3 f5 22. g4 fxg4 23. Bxg4 Raf8
24. Qe3 Kc7 25. bxc4 bxc4 26. Rd2 Rf6 27. Qxa3 Qxa3+ 28. Rxa3 Rf4 29. f3 Bc6
30. Re2 Bd7 31. Ra7+ Kd6 32. Bxe6 Bxe6 33. Ra6+ Kd7 34. Rexe6 Rxh5 35. Rg6 Kc7
36. Ra7+ Kb8 37. Re7 Rh8 38. Rgg7 Rxf3 39. Rb7+ Kc8 40. Rgc7+ Kd8 41. Rd7+ Kc8
42. Rbc7+ Kb8 43. Rb7+ {0.53}))) 4. cxd5 exd5 5. Bg5 c6 (5... Be7 {[d=55/92,
199104Mn] was the AlphaZero approach.} 6. e3 O-O 7. Bd3 h6 8. Bh4 c6 9. Nge2
Nbd7 10. O-O Re8 11. h3 ({Relevant:} 11. a4 Nh5 12. Bxe7 Qxe7 13. a5 a6 14. Ra3
Nf8 15. Na4 Rb8 16. Qd2 Qg5 17. f3 g6 18. Bb1 Ng7 19. Nf4 Bf5 20. Ba2 h5 21.
Qf2 Nd7 22. h4 Qf6 23. b4 Qd6 24. Nc5 Nf6 25. Qg3 Qd8 26. Qg5 Qd6 27. Qg3 Qd8
28. Qg5 Qd6 29. Qg3 {1/2-1/2 (29) Caruana,F (2786)-Firouzja,A (2804) Bucharest
2022}) 11... Nh5 12. Bxe7 Qxe7 {[#]} 13. Nb1 $146 {A very odd novelty!} ({
Predecessor:} 13. Rc1 Qh4 14. Qc2 Ndf6 15. Bf5 Bxf5 16. Qxf5 g6 17. Qc2 Ne4 18.
Nxe4 Qxe4 19. Qb3 Qe7 20. Rfd1 Ng7 21. Nf4 Nf5 22. a4 a5 23. Nd3 Kg7 24. Rc3
Nd6 25. Nc5 Qg5 26. Qc2 Re7 27. Rc1 Qf5 28. Qd1 Qf6 29. R3c2 Qf5 30. Qe2 Qf6
31. b3 Qf5 32. Qe1 Qc8 33. Qe2 Qf5 34. Qe1 Qc8 35. Qe2 Qf5 36. Qd2 Qc8 37. Qc3
Qf5 38. Qd2 Qc8 39. Qc3 Qf5 40. Qd2 Qc8 41. Qc3 Qf5 42. Qd2 {1/2-1/2 (42)
Baranov,N (2050)-Popov,A (2257) ICCF email 2014}) 13... g6 14. Nd2 Ng7 15. Ng3
h5 16. Nf3 Nf8 17. a3 h4 18. Ne2 Bf5 19. Nf4 Nfe6 20. Nxe6 Bxe6 21. b4 Bf5 22.
Qb3 Bxd3 23. Qxd3 a6 24. a4 Qxb4 25. Nxh4 Qe7 26. Nf3 Nf5 27. Qb3 Nd6 28. Ne5
Kg7 29. Rab1 Rec8 30. Rfc1 Rc7 31. Rb2 a5 32. Kh2 Re8 33. Rc5 f6 34. Nd3 Nc4 {
0.40}) 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. h4 h5 11. g3 Nd7 12.
Nh3 Bd6 13. Kd2 {[#]} a5 $146 ({Predecessor:} 13... Nf8 14. a3 Ne6 15. Nf4 Ke7
16. Re1 Rad8 17. Bd3 Bxf4 18. exf4 Bxd3 19. Kxd3 f5 20. b4 Rhe8 21. a4 a5 22.
b5 Kd6 23. Re5 Ng7 24. Rc1 f6 25. Re2 Rxe2 26. Nxe2 Ne8 27. Rb1 Kc7 28. b6+ Kd7
29. Nc1 {1/2-1/2 (29) Troia,E (2313)-Sciallero,V (2204) ICCF email 2013}) 14.
Bd3 Nf8 15. Rag1 Kd7 16. Na4 Rb8 17. Nf4 Rh6 18. Bxg6 fxg6 19. Rc1 Ne6 20. Nd3
Kc7 21. a3 Ra8 22. Nc3 Kd7 23. Ke2 Rhh8 24. Kf1 Rhc8 25. Kg2 a4 26. Rc2 Re8 27.
Rcc1 Kc7 28. Nb5+ {0.38} *
[Event "#4 - 1.d4 Nf6"]
[Site "?"]
[Date "2022.07.15"]
[Round "?"]
[White "Koivisto Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "A70"]
[Annotator "gmmat"]
[PlyCount "52"]
1. d4 Nf6 {[d=56/88, 1798308Mn]} 2. c4 (2. Nf3 g6 {[d=55/113, 434142Mn]} 3. c4
Bg7 4. Nc3 (4. e3 O-O 5. Be2 c5 6. dxc5 Na6 7. O-O Nxc5 8. b4 Nfe4 9. Nd4 Ne6
10. Bb2 Qb6 11. a3 d5 12. Bf3 Nxd4 13. Bxd4 Bxd4 14. Qxd4 Qxd4 15. exd4 Rd8 {
[#]} 16. Rd1 $146 ({Predecessor:} 16. a4 Bf5 17. Re1 e5 18. cxd5 Ng5 19. Rxe5
Nxf3+ 20. gxf3 Rac8 21. Nd2 Rc2 22. Ne4 Rc4 23. b5 Kf8 24. Rd1 b6 25. h4 h5 26.
Kg2 Rxa4 27. Kg3 Rb4 28. Kf4 Rxb5 29. Nf6 Kg7 30. Kg5 Rb3 31. Re3 Rb5 32. Re5
Rb3 33. Re3 Rb5 34. Re5 {1/2-1/2 (34) Anton Guijarro,D (2658)-Vachier Lagrave,
M (2763) Riga 2021}) 16... a5 17. b5 Nd6 18. Bxd5 e6 19. Bf3 Nxc4 20. Nd2 Nb6
21. Ne4 Nd5 22. Rac1 Rb8 23. Nc3 Nb6 24. d5 Kg7 25. d6 Kf8 26. Ne4 Nd5 27. a4
b6 28. h4 Bb7 29. Kh2 f5 30. Ng5 Rxd6 31. Nxh7+ Ke7 {0.37}) 4... d5 5. Bg5 {
Through the 2.Nf3 system, Koivisto is attracted to the 5.Bg5 system!} Ne4 6.
Bf4 Nxc3 7. bxc3 c5 8. cxd5 Qxd5 9. e3 cxd4 10. cxd4 Nc6 11. Be2 Qa5+ 12. Qd2
O-O 13. Qxa5 Nxa5 14. O-O ({Relevant:} 14. Rc1 Bf5 15. Rc5 b6 16. Rc1 Be6 17.
Ba6 Bxa2 18. Ke2 Bd5 19. Rc7 Rfe8 20. Rd1 Bf6 21. g4 e6 22. Ne5 g5 23. Bg3 Bd8
24. Rxf7 Nc6 25. Rd7 Nb4 26. Bb5 Re7 27. Rb1 a5 28. f3 Rxd7 29. Bxd7 Be7 30.
Be1 Ra7 31. e4 Bc4+ 32. Nxc4 Rxd7 33. Bxb4 Bxb4 34. d5 Rc7 35. Nxb6 Rc2+ 36.
Kd3 Rc3+ 37. Kd4 Kf7 38. Ke5 exd5 39. Nxd5 Rxf3 40. Nxb4 axb4 41. Rxb4 Rf2 42.
h3 Rf3 43. Rb7+ Kg6 {Oparin,G (2654)-Sindarov,J (2587) Riga 2021 1/2-1/2})
14... Be6 15. Rfc1 Rfc8 16. Kf1 {[#]} f5 $146 ({Predecessor:} 16... Bd5 17. Nd2
e6 18. Bd3 b6 19. a4 Bb7 20. Bd6 Bf8 21. Bxf8 Kxf8 22. g4 h6 23. h4 g5 24. hxg5
hxg5 25. Ke2 Ke7 26. Rab1 Rxc1 27. Rxc1 Rc8 28. Rxc8 Bxc8 29. Ne4 f6 30. Nc3
Nc6 31. Be4 Nb4 32. f4 e5 33. dxe5 Bxg4+ 34. Bf3 Bxf3+ 35. Kxf3 gxf4 36. exf6+
Kxf6 37. Kxf4 a6 38. Ke4 b5 39. Nxb5 axb5 40. axb5 Ke6 41. b6 Kd6 42. Kf5 Kc6
43. e4 Nd3 44. e5 Nxe5 45. b7 Nd7 46. b8=N+ {Sammalvuo,T (2441)-Agopov,M (2465)
Helsinki 2015 1/2-1/2}) 17. Ng5 Bc4 18. Bxc4+ Rxc4 19. Rab1 b6 20. Rxc4 Nxc4
21. Ke2 Rc8 22. Ne6 Kf7 23. Nxg7 Kxg7 24. Kd3 Na5 25. a3 Kf7 26. h3 Rc4 27. Bb8
Ra4 28. Bxa7 Rxa3+ 29. Ke2 Nc4 30. Bxb6 Ra2+ 31. Ke1 Nb2 32. Kf1 Nc4 33. Kg1
Nd2 34. Rc1 {0.26}) 2... e6 (2... g6 {[d=53/109, 140842Mn]} 3. Nc3 (3. f3 {
[d=49/85, 329752Mn]} c5 4. d5 Bg7 5. e4 e6 6. Nc3 exd5 7. cxd5 d6 8. Bg5 a6 9.
a4 O-O 10. Qd2 h6 11. Be3 Re8 12. Bd3 ({Relevant:} 12. Bc4 Nbd7 13. Be2 Ne5 14.
Bxh6 Nxe4 15. Nxe4 Qh4+ 16. g3 Qxh6 17. Qxh6 Bxh6 18. Nf6+ Kf8 19. Nxe8 Kxe8
20. h4 Bd7 21. h5 g5 22. Nh3 g4 23. fxg4 Nxg4 24. Bxg4 Bxg4 25. Nf4 Kd7 26. Kf2
Bg7 27. Kg2 Bf5 28. Kf3 Bxb2 29. Rab1 Bxb1 30. Rxb1 Be5 31. Rxb7+ Ke8 32. g4
Rc8 33. g5 c4 34. g6 fxg6 35. hxg6 Kf8 36. Ne6+ Kg8 37. Ke2 c3 38. Kd1 a5 39.
Kc2 Ra8 40. Rb5 Bf6 41. Rb6 Be5 {Ding,L (2799)-Carlsen,M (2864) chess24.com
INT 2022 1-0}) 12... h5 13. Bh6 Nbd7 14. Bxg7 Kxg7 {[#]} 15. Nh3 $146 ({
Predecessor:} 15. Nge2 Ne5 16. Bc2 Bd7 17. O-O b5 18. b3 {1/2-1/2 (17)
Fedorowicz,J (2444)-Matamoros Franco,C (2549) Philadelphia 2011}) 15... c4 16.
Bc2 Rb8 17. O-O b5 18. axb5 axb5 19. Ne2 Qb6+ 20. Nf2 Nc5 21. Nd4 Bd7 22. b3
Nd3 23. bxc4 bxc4 24. Qc3 Nxf2 25. Kxf2 Ra8 26. Rxa8 Rxa8 27. Qxc4 Qa5 28. Qd3
Qc5 {0.23}) (3. Nf3 Bg7 {[d=53/106, 193000Mn] Here Koivisto opts for a system
that Komodo Dragon was very keen on:}) 3... d5 {As always, the engines think
the Grunfeld is a better defence than the King's Indian.} (3... Bg7 {[d=53/86,
198001Mn]} 4. e4 d6 5. Be2 O-O 6. Nf3 {Koivisto always wants to play the
Classical even if it isn't forced to commit the knight to f3.} e5 7. O-O exd4
8. Nxd4 Re8 9. f3 c6 10. Kh1 a5 11. Bg5 Nbd7 {[#]} 12. Qe1 $146 ({Relevant:}
12. Qd2 a4 13. Nc2 Qa5 14. Bf4 Ne5 15. Qxd6 Nh5 16. Be3 Be6 17. Na3 Rad8 18.
Qc5 Qxc5 19. Bxc5 Nf4 20. Rfd1 Nxe2 21. Nxe2 Nxc4 22. Nxc4 Bxc4 23. Nc3 b6 24.
Rxd8 Rxd8 25. Bxb6 a3 26. Bxd8 axb2 27. Rb1 Bxc3 28. Ba5 Bh8 29. e5 Bxe5 30.
Bc7 Bh8 31. a4 Bd3 32. Rxb2 Bxb2 33. a5 Ba6 34. Bb6 Bc3 35. Kg1 c5 36. Kf2 c4
37. h3 Bb4 38. Ke2 c3+ 39. Kd1 Bd3 40. Be3 c2+ 41. Kc1 Ba3+ {Yilmaz,M (2630)
-Lavrov,M (2401) Lichess.org INT 2021 0-1}) 12... a4 13. Rd1 Qb6 14. Qd2 Nc5
15. Bf4 Bf8 16. Qc1 Qd8 17. Be3 Qe7 18. Rfe1 Bg7 19. Qd2 Nfd7 20. h3 Qd8 21.
Bf1 Qa5 22. Rb1 Nf8 23. Red1 Be5 24. Kg1 Be6 25. Bf2 Nfd7 26. f4 Bg7 27. Qc2
Nf6 28. b4 axb3 29. axb3 Qb4 30. g4 {0.72}) 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7
7. Be3 {Another system that Koivisto chooses against the Grunfeld} c5 8. Rc1
O-O 9. Qd2 Nd7 10. Bd3 e5 11. d5 f5 12. Bg5 Bf6 {[#]} 13. Nf3 $146 ({Relevant:
} 13. h4 f4 14. Nf3 Kg7 15. c4 h6 16. Bxf6+ Qxf6 17. Qc3 Re8 18. Bc2 Nb6 19. a4
Bd7 20. Rb1 Rab8 21. Nd2 Nc8 22. Qa3 b6 23. a5 Nd6 24. Ba4 b5 25. cxb5 Bxb5 26.
Bxb5 Nxb5 27. Qh3 Nd4 28. O-O h5 29. Nf3 Nxf3+ 30. gxf3 Kh6 31. Rfc1 Red8 32.
Rxb8 Rxb8 33. Rxc5 Rb1+ 34. Kg2 Qa6 35. Kh2 Qf6 36. Rc6 Qd8 37. Kg2 a6 38. Qf5
{1-0 (38) Navara,D (2681)-Salem,A (2679) Prague 2022}) 13... Bxg5 14. Nxg5 Nf6
15. Rd1 Kg7 16. O-O h6 17. Ne6+ Bxe6 18. dxe6 c4 19. Qb2 Qc7 20. Bc2 f4 21. Qa3
Rfe8 22. Rd6 Rad8 23. Rfd1 Rxd6 24. Rxd6 Re7 25. g3 fxg3 26. hxg3 b6 27. Ba4
Nxe4 28. Rd7 Rxd7 29. exd7 Nc5 {Blitz 10min+5sec}) (2... c5 3. d5 e6 {[d=52/93,
289538Mn]} 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg4 ({Relevant:} 7... Bg7 8.
Bb5+ Nfd7 9. Nf3 O-O 10. O-O a6 11. Bd3 b5 12. f5 Ne5 13. Nxe5 Bxe5 14. Bf4 Nd7
15. Qd2 f6 16. Kh1 g5 17. Be3 Nb6 18. a3 Bd7 19. Rab1 Qe7 20. Rfc1 Nc4 21. Bxc4
bxc4 22. Nd1 Rab8 23. Rxc4 Rb3 24. Qc2 Rfb8 25. Bd2 Qe8 26. Bc3 a5 27. Rc1 a4
28. Bxe5 Qxe5 29. Qd2 Qe7 30. h3 Qe8 31. Ne3 h5 32. Nd1 Kg7 33. R1c3 R3b7 34.
Re3 Qe5 35. Rcc3 Be8 36. Qc2 h4 37. Qc1 {Chigaev,M (2632)-Fedoseev,V (2704)
Warsaw 2021 0-1}) 8. Nf3 Bg7 9. Bb5+ Nfd7 10. O-O O-O {[#]} 11. h3 $146 ({
Predecessor:} 11. Be3 a6 12. Be2 b5 13. Qd2 Re8 14. Bd3 Bxf3 15. Rxf3 c4 16.
Bc2 Qc7 17. Raf1 Nc5 18. e5 Nbd7 19. e6 fxe6 20. dxe6 Rxe6 21. f5 Ree8 22. fxg6
Ne5 23. gxh7+ Kh8 24. Rg3 Ncd3 25. Nd5 Qb7 26. Nf4 Qe4 27. Nh5 Re7 28. h3 Qxh7
29. Bg5 Rf7 30. Rxf7 Nxf7 31. Bf6 Bxf6 32. Nxf6 Qh4 33. Rg6 Qe1+ 34. Qxe1 Nxe1
35. Be4 Rd8 36. Bd5 Ne5 37. Rg3 N1d3 38. Be4 Nxb2 39. Ra3 Rf8 40. Nd5 Na4 {
Gattegno,L (2019)-Cazeaux,D (1767) Bordeaux 2015 0-1}) 11... Bxf3 12. Qxf3 a6
13. Be2 b5 14. e5 dxe5 15. f5 Nf6 16. fxg6 fxg6 17. a4 Nbd7 18. axb5 e4 19. Qe3
axb5 20. Rxa8 Qxa8 21. Bxb5 Nxd5 22. Qxe4 Nxc3 23. Rxf8+ Qxf8 24. bxc3 Nf6 25.
Qe6+ Qf7 26. Qc8+ Qf8 27. Bc4+ Kh8 28. Qxf8+ Bxf8 29. Bb5 Kg8 30. c4 Kf7 31.
Kf2 Ke6 32. Ke2 Nd7 33. Kd3 Kd6 34. Bf4+ Ke6 35. Bxd7+ {0.91}) 3. Nf3 (3. Nc3 {
[d=58/95, 944375Mn]} Bb4 4. e3 {Also Koivisto's first choice above 4.Qc2 and 4.
f3!} (4. Qc2 {[d=55/92, 431085Mn]} O-O 5. Nf3 d5 6. e3 c5 7. dxc5 Bxc5 8. cxd5
exd5 9. Be2 Nc6 10. a3 d4 11. Na4 Be7 12. O-O Bg4 13. Nxd4 Nxd4 14. exd4 Qxd4 {
[#]} 15. Bxg4 $146 ({Predecessor:} 15. Be3 Qe5 16. Nc3 Bf5 17. Qb3 Be6 18. Qb5
Nd5 19. Nxd5 Bxd5 20. Rfd1 Bd6 21. g3 Be4 22. Bd4 Qe6 23. Qg5 g6 24. Bg4 f5 25.
Bh3 b6 26. Qh6 Rf7 27. Rd2 Bb7 28. Bg2 Bxg2 29. Kxg2 f4 30. f3 Bf8 31. Qh4 Be7
32. Qh6 Rd8 33. Rad1 fxg3 34. hxg3 Qf5 35. Qe3 Rdf8 36. Rd3 Bf6 37. Bxf6 Qxf6
38. Qd2 Re8 39. Qc2 h5 40. Qf2 Kg7 41. Rd6 Qe5 42. R1d2 Rfe7 43. Qd4 Qxd4 44.
R6xd4 Re2+ {Monciunskas,P-Zalys,I corr 1952 1/2-1/2}) 15... Qxg4 16. h3 Rac8
17. Qb3 Qc4 18. Qxc4 Rxc4 19. Nc3 Bd6 20. Bd2 a6 21. Rad1 Re8 22. Rfe1 Kf8 23.
Kf1 Rxe1+ 24. Rxe1 Rc6 25. g3 Be7 26. Rc1 Bd6 27. Ke2 Ke7 28. f4 Rb6 29. b4 Rc6
30. Be3 Ke6 31. Bd4 {0.15}) (4. f3 {[d=51/92, 129439Mn]} O-O 5. a3 Bxc3+ 6.
bxc3 d6 7. e4 Nh5 8. Nh3 e5 ({Relevant:} 8... f5 9. Be2 fxe4 10. O-O e5 11. Ng5
Nf4 12. Bxf4 exf4 13. Nxe4 Bf5 14. Qb3 Nc6 15. Qxb7 Ne7 16. Rab1 h6 17. Bd3 Bg6
18. Rfe1 Nf5 19. Qd5+ Kh7 20. Nf2 Nh4 21. Bxg6+ Nxg6 22. Re6 Re8 23. Rbe1 Rxe6
24. Rxe6 Nf8 25. Qe4+ Kh8 26. Re7 Rb8 27. Nh3 Ng6 28. Re6 Nh4 29. Nxf4 Qg5 30.
Re8+ Rxe8 31. Qxe8+ Kh7 32. Qe4+ Kh8 33. Kf2 Nf5 34. g3 g6 35. Qe8+ Kh7 36.
Qd7+ Kh8 37. Qc8+ Kh7 38. Qxc7+ {Kobo,O (2460)-Tomashevsky,E (2706) Chess.com
INT 2021 1-0}) 9. Nf2 Nc6 10. g4 Nf6 11. h4 Nd7 12. Be2 b6 13. h5 Qe7 14. g5 f5
{[#]} 15. gxf6 $146 ({Predecessor:} 15. h6 g6 16. dxe5 Bb7 17. Qd5+ Kh8 18.
exd6 cxd6 19. Be3 Na5 20. Qd4+ Ne5 21. f4 Nb3 22. Qd1 Nxa1 23. fxe5 dxe5 24.
Qxa1 f4 25. Bc1 Qxg5 26. a4 Rfd8 27. Qb1 Rab8 28. Qb5 a6 29. Qb3 Bc6 30. Bf3
Be8 31. Qb4 Bf7 32. Ba3 Rb7 33. c5 Qg3 34. c6 Rc7 35. Be2 Be6 36. a5 Qe3 37.
Qxb6 Qd2+ 38. Kf1 f3 39. Bxf3 Rf7 40. c7 Bc4+ 41. Kg1 Qg5+ 42. Ng4 Rc8 43. Qf2
Be6 44. Rh2 Bxg4 {Yakovlyev,S (2339)-Tofan,I (2416) ICCF email 2019 1/2-1/2})
15... Nxf6 16. h6 g6 17. Bg5 Nd8 18. Bh4 Ne6 19. dxe5 dxe5 20. Bxf6 Qxf6 21.
Qd5 Ba6 22. Ng4 Qf7 23. Nxe5 Qf6 24. Nd7 Qxc3+ 25. Kf2 Bxc4 26. Qxc4 Rxf3+ 27.
Kg2 Rg3+ 28. Kf2 Rf3+ {0.04}) (4. a3 {[d=52/95, 155862Mn]} Bxc3+ 5. bxc3 b6 6.
e4 Nxe4 7. Qg4 f5 8. Qxg7 Qf6 9. Qxf6 Nxf6 {[#]} 10. Bg5 $146 ({Predecessor:}
10. Bf4 Nc6 11. Bxc7 Ba6 12. Be2 Rc8 13. Bd6 Ne4 14. c5 Bxe2 15. Nxe2 Nxd6 16.
cxd6 Na5 17. f3 Nc4 18. Kf2 Nxd6 19. Rab1 Kf7 20. Rb4 Rc4 21. Rhb1 Rhc8 22. Ke3
R4c6 {1/2-1/2 (22) Carnemolla,G (1948)-Cuppone,D ICCF email 2015}) 10... Ne4
11. Bf4 Ba6 12. f3 Nf6 13. Bxc7 Nc6 14. Be5 Ke7 15. Be2 Na5 16. c5 Bxe2 17.
Nxe2 Nc4 18. cxb6 axb6 19. Kf2 Ra5 20. Bxf6+ Kxf6 21. Rhb1 Rha8 22. Rb4 b5 23.
h4 Ke7 24. Nf4 Nxa3 25. g4 fxg4 26. fxg4 Nc4 27. Rxa5 Rxa5 28. Kf3 Nd6 29. g5
Ra1 30. Kg4 Rc1 31. Ne2 Rc2 32. Kf3 Rd2 33. Nf4 Rh2 {-0.06}) 4... O-O (4... c5
{[d=52/94, 109845Mn]} 5. Nge2 d5 6. cxd5 exd5 7. a3 Bxc3+ 8. Nxc3 cxd4 9. exd4
O-O {[#]} 10. Bg5 $146 ({Predecessor:} 10. Be2 h6 11. O-O Nc6 12. h3 Qb6 13.
Be3 Bf5 14. b4 Rad8 15. Rc1 Ne4 16. Na4 Qc7 17. Nc5 Nxc5 18. Rxc5 Qd7 19. Bf3
Be6 20. Qc1 Rc8 21. Qb2 a6 22. Rfc1 Na7 23. Bf4 Rxc5 24. bxc5 Nc6 25. Bd6 Rd8
26. Bf4 Bf5 27. Be3 Be4 28. Bg4 Bf5 29. Be2 Qe7 30. Rc3 Rd7 31. Rc1 Qf6 32. Bf1
Qg6 33. Kh2 Bd3 34. Qb3 Bxf1 35. Rxf1 Qe4 36. Qc3 Re7 {1/2-1/2 (36)
Vifleemskaia,S (1926)-Curtis,J (2292) Chess.com INT 2022}) 10... h6 11. Bh4 Qd6
12. Bd3 Re8+ 13. Ne2 Nc6 14. O-O Bd7 15. Rc1 Rac8 16. Re1 Nh5 17. Qd2 Ne7 18.
Rxc8 Nxc8 19. f3 Ne7 20. Nc3 Ng6 21. Rxe8+ Bxe8 22. Bf2 Bc6 23. Na2 Nhf4 24.
Bf1 Qf6 25. Qc3 h5 26. Nb4 h4 27. Be3 Qd6 28. g3 Ne6 29. Nxc6 bxc6 30. Bf2 hxg3
{0.46}) 5. Bd2 {For someone from the pre-computer age, it looks appalling to
be reduced to this ;) but there have been some top-level tests.} d5 6. a3 Be7
7. Nf3 b6 8. cxd5 exd5 9. Be2 ({Relevant:} 9. Rc1 c5 10. dxc5 bxc5 11. Bd3 Bg4
12. h3 Bh5 13. Ne2 Bxf3 14. gxf3 Nbd7 15. Bc3 Re8 16. O-O Nf8 17. Ng3 Ng6 18.
Nf5 Bf8 19. Bb1 d4 20. exd4 Nd5 21. dxc5 Qg5+ 22. Kh2 Rad8 23. Qa4 Ndf4 24. Rg1
Qh5 25. Rg3 Ne2 26. Rcg1 Nxg3 27. Rxg3 Re2 28. Bd4 Rd2 29. Be3 R2d5 30. Rg5
Qxf3 31. Be4 Qd1 32. Qxd1 Rxd1 33. c6 Rc8 34. Bxa7 f6 35. Rg1 Rd2 36. b4 Ne5
37. b5 g6 38. Be3 Kh8 {Ding,L (2806)-Praggnanandhaa,R (2642) chess24.com INT
2022 1-0}) 9... c5 10. O-O Bb7 11. Qc2 Nbd7 12. Rfd1 {[#]} Bd6 $146 ({
Predecessor:} 12... Rc8 13. b3 Qc7 14. Nb5 Qb8 15. a4 a6 16. Na3 g6 17. h3 Ne4
18. Be1 cxd4 19. Qb2 dxe3 20. fxe3 Bf6 21. Nd4 Ndc5 22. Nac2 Qe5 23. Rac1 Ng3
24. Bxg3 Qxg3 25. Bf3 Ne4 26. Bxe4 dxe4 27. Qb1 Rc5 28. Ne2 Qg5 29. Rd6 Rfc8
30. Rxb6 Rxc2 31. Rxc2 Rxc2 32. Qxc2 Qxe3+ 33. Kf1 {0-1 (33) Cimo,A (1506)
-Pelizzola,D (2059) Bresso 2006}) 13. Nb5 Bb8 14. Be1 a6 15. Nc3 Re8 16. Bf1
Qe7 17. a4 g6 18. h3 Bd6 19. Rac1 Rac8 20. Qb1 Bb8 21. b3 cxd4 22. Nxd4 h5 23.
Nce2 Qd6 24. Nf3 Ne5 25. Ned4 Ne4 26. Rxc8 Bxc8 27. Nxe5 Qxe5 28. Nf3 Qc7 29.
a5 bxa5 {Blitz 10min+5sec}) (3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. O-O
O-O 8. Qc2 b6 9. Ne5 Bb7 10. Rd1 ({Relevant:} 10. Nc3 Nfd7 11. Nf3 a5 12. cxd5
cxd5 13. Rfc1 Nc6 14. Qb3 Rc8 15. Nb5 Nf6 16. e3 Ne4 17. Be1 Nd6 18. Nxd6 Bxd6
19. Bf1 Ba8 20. Bb5 Na7 21. Be2 Rxc1 22. Rxc1 Qb8 23. Ba6 Bc6 24. Ne5 Be8 25.
Bd3 Bxe5 26. dxe5 Bd7 27. f4 Nc6 28. Qa3 Rd8 29. Bc3 Be8 30. Bd4 Nxd4 31. exd4
Rc8 32. Rc3 Rxc3 33. Qxc3 Qd8 34. Kf2 h5 35. Ba6 Bd7 36. Be2 g6 37. Ke3 Kg7 38.
Kd2 Qb8 39. Qa3 Qf8 {Markus,R (2627)-Sjugirov,S (2680) Belgrade 2022 1/2-1/2})
10... Nbd7 11. cxd5 cxd5 12. Nc6 Qe8 13. Nxe7+ Qxe7 14. Qb3 Rfc8 15. Nc3 {[#]}
h6 $146 ({Predecessor:} 15... Ne4 16. Rac1 Nxd2 17. Rxd2 Nf6 18. Rdc2 Qd7 19.
e3 {1/2-1/2 (21) Marek,S (2440)-Kamody,M (2481) ICCF email 2020}) 16. Nb5 a6
17. Qa3 Qxa3 18. Nxa3 Ne4 19. Be1 a5 20. f3 Nd6 21. Rdc1 Ba6 22. e4 dxe4 23.
fxe4 Bb7 24. d5 Nc5 25. e5 Nf5 26. dxe6 Bxg2 27. exf7+ Kxf7 28. Kxg2 Nd3 29.
Rxc8 Rxc8 30. Bc3 Ke6 31. Kf3 Nxe5+ 32. Ke2 Rc5 33. Re1 Kd5 34. Nc2 Ng4 35. h3
{0.23}) 3... d5 (3... c5 {[d=49/98, 106259Mn]} 4. d5 exd5 5. cxd5 d6 6. Nc3 g6
7. h3 Bg7 8. Bf4 O-O 9. e3 Qe7 10. Be2 Ne4 11. Nxe4 Qxe4 12. Bxd6 Rd8 13. Bxc5
{[#]} Rxd5 $146 ({Predecessor:} 13... Bxb2 14. Bd4 Bxd4 15. Qxd4 Qxd4 16. Nxd4
Rxd5 17. Rc1 Nd7 18. O-O Nf6 19. Bf3 Ra5 20. Rc2 Rb8 21. Rb1 Nd7 22. Rc7 Nb6
23. Nb5 Na8 24. Rc3 Rxa2 25. Bd5 Rd2 26. Nd4 Nb6 27. Bb3 Bd7 28. Kf1 Re8 29.
Rc7 Re7 30. Kg1 Re5 31. Nf3 Red5 32. Nxd2 Rxd2 33. Rxb7 Nc8 34. Rd1 Rxd1+ 35.
Bxd1 Be6 36. Bb3 Nd6 37. Rb8+ Kg7 38. Bxe6 fxe6 39. Rd8 Nb5 40. Rd7+ Kf6 41.
Rb7 a6 42. Rb6 Nc7 43. Rc6 {Bagrationi,A (2539)-Melia,S (2392) Jerusalem 2018
1-0}) 14. Bd4 Nc6 15. O-O Nxd4 16. exd4 Be6 17. Bd3 Qf4 18. Bc4 Rd6 19. Bxe6
Rxe6 20. Qd3 Rd8 21. Rfd1 Red6 22. g3 Qf5 23. Qxf5 gxf5 24. Rac1 Bxd4 25. Rxd4
Rxd4 26. Nxd4 Rxd4 27. Rc7 Rb4 28. b3 a5 29. Kg2 Kg7 30. Kf3 Kf6 31. Ke3 h5 32.
Rc4 Rxc4 33. bxc4 Ke5 34. a3 a4 {0.93}) (3... b6 {[d=50/87, 121148Mn]} 4. g3
Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 O-O 8. Ne5 c6 9. Bc3 d5 10. Nd2 Bb7 11. O-O
Nbd7 12. Nxd7 Qxd7 13. e4 Rad8 {[#]} ({Relevant:} 13... dxe4 14. Qe1 Rad8 15.
Nxe4 Qc7 16. Qe3 c5 17. Nxf6+ Bxf6 18. dxc5 Bxc3 19. Qxc3 Bxg2 20. Kxg2 bxc5
21. Qe3 Rd4 22. Rad1 e5 23. Rxd4 exd4 24. Qe4 Rd8 25. Rd1 a5 26. h4 h5 27. Rc1
g6 28. Kg1 Qd6 29. Re1 Qf6 30. Kg2 Kg7 31. Qf3 Rd6 32. Re8 a4 33. Qa8 axb3 34.
axb3 d3 35. Rg8+ {1/2-1/2 (35) Brasier,J (2427)-Kolesar,M (2528) ICCF email
2017}) 14. e5 $146 ({Predecessor:} 14. Qe2 dxe4 15. Nxe4 c5 16. Rad1 cxd4 17.
Bxd4 Nxe4 18. Bxe4 Qc8 19. Qg4 g6 20. Bxb7 Qxb7 21. Rfe1 {1/2-1/2 (21) Costa
Trillo,V (2342)-Perez Lopez,A (2349) ICCF email 2017}) 14... Ne8 15. cxd5 exd5
16. f4 Ba6 17. Re1 Nc7 18. Nf3 Qf5 19. b4 Bc4 20. a4 c5 21. bxc5 bxc5 22. Nd2
Bd3 23. Nf1 cxd4 24. Bxd4 Bb4 25. Ne3 Qg6 26. f5 Bxf5 27. Nxf5 Qxf5 28. Rf1 Qg6
29. Rc1 Ne6 30. Bxa7 d4 31. Bb6 Rb8 {0.31}) (3... Bb4+ {[d=60/95, 662617Mn]} 4.
Nbd2 Be7 {A really odd move, not even waiting for 5.a3!} 5. e4 d5 6. Bd3 c5 7.
dxc5 dxe4 {[#]} 8. Nxe4 $146 ({Predecessor:} 8. Bxe4 Nxe4 9. Nxe4 Qxd1+ 10.
Kxd1 O-O 11. Bf4 f5 12. Nd6 Na6 13. Ke2 Nxc5 14. Rad1 a5 15. Ne5 a4 16. Rd2 Bf6
17. h4 Nd7 18. Nxc8 Nxe5 19. Nb6 Ra6 20. Bxe5 Rxb6 21. Bxf6 Rxf6 {1/2-1/2 (21)
Dobroruka,V (1953)-Docevski,B (1994) ICCF email 2020}) 8... Nxe4 9. Bxe4 Qxd1+
10. Kxd1 Bxc5 11. Ke2 f5 12. Bc2 Nc6 13. Ba4 Bd7 14. Rd1 O-O-O 15. b3 e5 16.
Rd5 Be7 17. Nxe5 Bf6 18. f4 Rhe8 19. Bxc6 Bxc6 20. Rxd8+ Kxd8 21. g3 Bxe5 22.
fxe5 Rxe5+ 23. Be3 h6 24. Kd2 a6 25. a4 g5 26. Rf1 Ke7 27. h4 gxh4 28. gxh4 h5
29. Bf4 Re4 30. Re1 Rxe1 31. Kxe1 Ke8 32. a5 Kd7 33. b4 Ba4 34. Ke2 Ke7 35. Kd3
Kd7 36. Ke3 Bd1 37. Kd4 Kc6 38. Kc3 Bg4 {0.45}) 4. Nc3 dxc4 5. e4 Bb4 6. Bxc4
Nxe4 7. O-O Nxc3 8. bxc3 Bd6 9. Ng5 h6 10. Ne4 O-O 11. Qh5 f5 12. Nxd6 cxd6 13.
Re1 d5 14. Bb3 Qf6 15. Bf4 Bd7 16. Re3 Nc6 17. Rae1 {[#]} Rac8 $146 ({
Predecessor:} 17... Kh7 18. Ba4 g5 19. Bd6 Rfc8 20. c4 g4 21. Bxc6 Rxc6 22. Be5
Qg6 23. Qh4 Qg5 24. Qg3 Rxc4 25. h3 Rg8 26. hxg4 Qxg4 27. Qh2 Rg6 28. Rg3 Qe2
29. Rf1 Rc8 30. Qh4 Rxg3 31. Qe7+ Kg6 32. fxg3 Qe3+ 33. Kh2 {1-0 (33)
Kovalenko,I (2624)-Sulskis,S (2507) Liepaja 2018}) 18. h3 Qf7 19. Qe2 Na5 20.
Kh2 Kh7 21. Qb2 Qg8 22. Rg3 Rf7 23. Ree3 Qd8 24. Qe2 Nc4 25. Bxc4 Rxc4 26. Be5
f4 {0.27} *
[Event "#5 - All the rest!"]
[Site "?"]
[Date "2022.07.15"]
[Round "?"]
[White "Koivisto Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "A01"]
[Annotator "gmmat"]
[PlyCount "58"]
1. b3 {[d=60/99, 2313107Mn]} (1. f4 {[d=52/90, 504566Mn]} Nf6 2. e3 e6 3. b3
Be7 4. Nf3 c5 5. Bb2 O-O 6. Be2 d5 7. Ne5 ({Relevant:} 7. O-O Ne4 8. d3 Nd6 9.
g4 Nc6 10. Ne5 f6 11. Nxc6 bxc6 12. Qe1 a5 13. Nc3 e5 14. Na4 exf4 15. exf4 Nb5
16. Qf2 d4 17. Bf3 Qc7 18. Rae1 Bd6 19. Bc1 Bd7 20. f5 Rae8 {1/2-1/2 (20)
Panjwani,R (2431)-Lenderman,A (2621) Charlotte 2021}) 7... Nfd7 8. d4 Nc6 9.
O-O {[#]} Rb8 $146 ({Predecessor:} 9... Ndxe5 10. dxe5 f6 11. Bb5 fxe5 12. Bxc6
bxc6 13. Bxe5 Bf6 14. Bc3 Ba6 15. Rf3 d4 16. exd4 Qd5 17. Bb2 cxd4 18. Nd2 c5
19. Qe1 Bb7 20. Nc4 Rad8 21. Rd1 Qf5 22. Rf1 Be4 23. Na3 Qg6 24. Rd2 Rfe8 25.
Qg3 Qf5 26. c3 dxc3 27. Bxc3 Rxd2 28. Bxd2 Rd8 29. Nc4 Rd3 30. Qe1 Bd4+ 31. Be3
Qg4 32. g3 Qh3 33. Rf2 Qh5 34. Rf1 Qd5 35. Bxd4 cxd4 36. Qb4 h6 37. Qb8+ Kh7
38. Qe5 Qxe5 39. Nxe5 {Nestorovic,V (2248)-Lazic,M (2507) Osijek 2010 1-0}) 10.
Nxc6 bxc6 11. Kh1 cxd4 12. exd4 c5 13. dxc5 Nxc5 14. Bd4 Bb7 15. Nc3 a5 16. Nb5
Ne4 17. Bd3 Bf6 18. Bxf6 Nxf6 19. Qe1 Qb6 20. Qf2 Ba6 21. Qxb6 Rxb6 22. a4 Rc8
23. Kg1 g6 24. Rfb1 Nd7 25. Na7 Rc5 26. Nb5 Kf8 27. b4 axb4 {-0.42}) (1. c4 e5
2. Nc3 {[d=50/101, 165626Mn]} Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7.
Ng5 ({Relevant:} 7. a3 Bf8 8. Ng5 g6 9. Nxf6+ Qxf6 10. h4 d6 11. Ne4 Qd8 12. b3
Bg7 13. Bb2 f5 14. Nc3 Nd4 15. Qd1 c6 16. h5 Ne6 17. hxg6 hxg6 18. b4 a5 19.
Qb3 axb4 20. axb4 Rxa1+ 21. Bxa1 Nc7 22. b5 Be6 23. bxc6 bxc6 24. Qb6 Qd7 25.
Be2 Na8 26. Qb1 Qc7 27. g4 Rb8 28. Qc2 Qa5 29. Bb2 Qb4 30. Nd1 Qb3 31. Qxb3
Rxb3 32. gxf5 Bxf5 33. Bc3 Nb6 34. f3 Be6 35. Rg1 Kf7 36. Bd3 Bf5 {Korobov,A
(2675)-Amin,B (2681) Chartres 2022 1/2-1/2}) 7... g6 8. Nxf6+ Qxf6 9. Ne4 Qe6 {
[#]} 10. Be2 $146 ({Predecessor:} 10. a3 Bf8 11. d3 Nd8 12. Be2 c6 13. c5 f5
14. d4 b5 15. Ng5 Qf6 16. Nf3 e4 17. Ne5 Rxe5 18. dxe5 Qxe5 19. Qb1 Qxc5 20. b4
Qb6 21. O-O d5 22. a4 Bb7 23. Bb2 a6 24. Qe1 Ne6 25. Qc3 Bg7 26. Qd2 Bh6 27.
Kh1 Rd8 28. Be5 Bf8 29. f3 Bh6 30. f4 Bg7 31. Bxg7 Nxg7 32. Bd1 Bc8 33. Bb3 Be6
34. Rfd1 d4 35. Qa2 Kf7 36. axb5 Qxb5 37. exd4 Qxb4 38. d5 cxd5 39. Bxd5 Rxd5 {
Szerlak,A (2412)-Abolins Abols,D (2356) ICCF email 2020 1/2-1/2}) 10... Bf8 11.
O-O b6 12. d3 Bb7 13. a3 Nd8 14. b4 c5 15. Qb2 cxb4 16. axb4 a5 17. bxa5 Bxe4
18. dxe4 bxa5 19. Rd1 Bb4 20. Bd2 Nc6 21. h3 Qe7 22. Ra4 Reb8 23. Bc3 h5 24.
Rd5 Kg7 25. Rb5 d6 26. Qa1 {0.08}) (1. e4 c5 2. d4 (2. b4 {[d=50/86, 255414Mn]}
cxb4 3. Nf3 Nf6 4. e5 Nd5 5. a3 e6 6. axb4 Bxb4 7. c4 Ne7 8. Na3 Nbc6 9. Nc2 a5
10. Nxb4 Nxb4 11. Ba3 Rb8 {[#] The same line as Komodo Dragon!} 12. Be2 $146 ({
Predecessor:} 12. Qb1 Nec6 13. d4 d5 14. exd6 Qxd6 15. Be2 f6 16. O-O O-O 17.
Rd1 Bd7 18. Ra2 Be8 19. Rad2 Bg6 20. Qb2 Rfe8 21. d5 exd5 22. cxd5 Ne7 23. Bb5
Rec8 24. Ne1 Rc5 25. Bxb4 axb4 26. Qxb4 Qb6 27. Qf4 Rd8 28. Bc4 Qd6 29. Qg4 h5
30. Qd4 Nf5 31. Qd3 Rdc8 32. Ba2 Rc1 33. Qf3 b5 34. Qe2 b4 35. h3 {1/2-1/2 (35)
Hooft,D-Keijzer,R (2126) ICCF email 2016}) 12... O-O 13. Qb3 b6 14. O-O Bb7 15.
Bxb4 axb4 16. Qxb4 Ng6 17. Qc3 f6 18. g3 Bxf3 19. Qxf3 Nxe5 20. Qe3 Qc7 21.
Rfc1 f5 22. d4 Nf7 23. Bf1 Nh6 24. Rab1 f4 25. Qe4 Nf5 26. Rb3 Qd6 27. Rd1 Rbc8
28. Qxf4 Qxf4 29. gxf4 {-0.65}) (2. c3 {[d=52/91, 325414Mn]} Nf6 3. e5 Nd5 4.
d4 cxd4 5. Nf3 d6 6. cxd4 dxe5 7. dxe5 Nc6 8. Bc4 Be6 9. O-O g6 10. Ng5 Bg7 11.
Nxe6 fxe6 12. Nc3 ({Relevant:} 12. f4 Qb6+ 13. Kh1 Rd8 14. Qe2 Qc5 15. Qe4 Nxf4
16. Be3 Qxe5 17. Qxe5 Bxe5 18. Bxf4 Rf8 19. Bxe5 Rxf1+ 20. Bxf1 Rd1 21. Kg1
Nxe5 22. h3 Nd3 23. g3 e5 24. Kg2 e4 25. Bxd3 exd3 26. Kf2 a5 27. a4 e5 28. Ke3
Ke7 29. h4 h5 30. Ra3 Rxb1 31. Rxd3 Rxb2 32. Rd5 Rb3+ 33. Kf2 Ke6 34. Rxa5 Kf5
35. Rc5 Rb4 36. Rc7 Ke4 37. Rg7 Rb2+ 38. Kg1 Kf3 39. Rxg6 e4 40. Rf6+ Kxg3 41.
Kf1 Rb4 {Jones,G (2669)-Wei,Y (2727) chess24.com INT 2022 0-1 (69)}) 12... Nxc3
13. bxc3 Qxd1 14. Rxd1 Bxe5 15. Bxe6 Bxc3 16. Bd7+ Kf7 17. Rb1 Rab8 18. Bf4 {
[#]} Be5 $146 ({Predecessor:} 18... e5 19. Bg3 h6 20. Rb3 Nd4 21. Bxe5 Nxb3 22.
Bxc3 Nc5 23. Bxh8 Rxh8 24. Bb5 {1/2-1/2 (24) Andrew,S-Cooper,R (1973) ICCF
email 2015}) 19. Bxc6 Bxf4 20. Rxb7 Rxb7 21. Bxb7 Kf6 22. Bd5 Rd8 23. h4 Bc7
24. Bb3 Rxd1+ 25. Bxd1 Bb6 26. Kf1 Kg7 27. g3 Bd4 28. Ba4 Bb6 29. Bb3 e5 30. f3
Kf6 31. Bc2 Kg7 {0.07}) 2... cxd4 3. c3 {[d=48/101 109846Mn]} dxc3 4. Nxc3 Nc6
5. Nf3 d6 6. Bc4 a6 7. O-O Nf6 8. Bf4 e6 ({Relevant:} 8... Bg4 9. h3 Bxf3 10.
Qxf3 e6 11. Rad1 Qc7 12. Qd3 Rd8 13. Rc1 Qb8 14. Bb3 Be7 15. Be3 O-O 16. Rfd1
Nd7 17. Qe2 Nc5 18. Bc2 b5 19. a3 Ne5 20. b4 Ncd7 21. Bb3 Rc8 22. f4 Nc4 23.
Bf2 Bf6 24. e5 Be7 25. Bxc4 Rxc4 26. exd6 Bxd6 27. f5 exf5 28. Qd3 Bh2+ 29. Kf1
Bf4 30. Qxd7 Bxc1 31. Rxc1 Rfc8 32. Qd2 Qh2 33. Rd1 h6 34. Nd5 Rc2 35. Ne7+ Kh7
36. Nxc8 Rxd2 37. Rxd2 Qc7 38. Nd6 {Postny,E (2600)-Le,Q (2709) Lichess.org
INT 2020 1/2-1/2 (76)}) 9. Qe2 Nh5 10. Be3 Be7 11. Bb3 Bd7 12. Rfd1 Nf6 13. Bf4
e5 14. Be3 O-O 15. Nd5 Nxd5 16. Bxd5 Rc8 17. a3 {[#]} Qc7 $146 ({Predecessor:}
17... h6 18. b4 Be6 19. b5 axb5 20. Qxb5 Qd7 21. Rab1 Nd8 22. Bxe6 Qxe6 23. Nd2
Rc7 24. Nf1 f5 25. Ng3 fxe4 26. Nxe4 Nf7 27. h3 Rfc8 28. Qd3 Bf8 29. Rb5 Qc4
30. Kh2 Qxd3 31. Rxd3 Be7 32. f3 Kf8 33. Bb6 Rc6 34. Be3 {1/2-1/2 (32) Flude,D
(2064)-Balleer,D (2261) ICCF email 2013}) 18. Rac1 Qb8 19. Qd2 Bg4 20. h3 Bxf3
21. gxf3 Bf6 22. Bxc6 bxc6 23. Qxd6 Qxb2 24. Qc5 h6 25. a4 Qa2 26. Qa5 Qe6 27.
Kg2 Ra8 28. Qc7 {-0.30}) (1. Nf3 d5 2. g3 {[d=46/86, 56333Mn]} Nf6 3. Bg2 c5 4.
O-O e6 5. c4 d4 6. e3 Nc6 7. d3 Bd6 8. exd4 cxd4 9. Bg5 O-O ({Relevant:} 9...
h6 10. Bxf6 Qxf6 11. Nbd2 Qe7 12. Re1 O-O 13. Nb3 Qf6 14. Nfd2 Bc7 15. a3 a5
16. Nc5 Qe7 17. Na4 Bd7 18. Nb3 b6 19. Bxc6 Bxc6 20. Nxd4 Bb7 21. Nb5 Qd7 22.
Qe2 Rad8 23. d4 Qc6 24. f3 Rd7 25. Kg2 Bd8 26. Nac3 Bf6 27. Rad1 Qc8 28. d5
Bxc3 29. Nxc3 exd5 30. Nxd5 Bxd5 31. Rxd5 Rfd8 32. Qe4 b5 33. Rxd7 Qxd7 34. c5
b4 35. axb4 axb4 36. Qxb4 Qd2+ 37. Qxd2 Rxd2+ 38. Kh3 Rxb2 39. Rc1 {Aronian,L
(2785)-Robson,R (2681) Saint Louis 2022 1-0}) 10. Nbd2 h6 11. Bxf6 Qxf6 12. Ne4
Qe7 13. Nxd6 Qxd6 14. Re1 Bd7 {[#]} 15. Qe2 $146 ({Predecessor:} 15. a3 a5 16.
Rc1 b6 17. Nd2 e5 18. c5 bxc5 19. Ne4 Qg6 20. Nxc5 Bf5 21. h3 h5 22. Bxc6 Qxc6
23. Qxh5 g6 24. Qh6 Qf6 25. g4 Bc8 26. Ne4 Qg7 27. Qxg7+ Kxg7 28. Nd6 f6 29.
Rc7+ Kg8 30. f4 Rd8 31. fxe5 fxe5 32. Rxe5 Bxg4 33. Ne4 {1-0 (33) Baryshpolets,
A (2609)-Li,B (2324) Irving 2018}) 15... Rfd8 16. Ne5 Be8 17. Rab1 Rab8 18. b3
Nxe5 19. Qxe5 Qa3 20. Ra1 b5 21. Be4 Rbc8 22. Reb1 Rc5 23. Qf4 Qa5 24. Rc1 bxc4
{0.27}) 1... e5 2. Bb2 Nc6 3. e3 Nf6 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 Be7 ({
Relevant:} 6... d5 7. c4 Bg4 8. Qc1 Be7 9. cxd5 O-O 10. Nc3 Nxd5 11. Nxe4 f5
12. Nc3 Nb4 13. Bc4+ Kh8 14. O-O Nc6 15. f3 Bh5 16. Ne2 Nxd4 17. Nxd4 Qd6 18.
Nb5 Qb6 19. Nc3 c6 20. f4 Bf6 21. d4 Rae8 22. Kh1 Re7 23. Qd2 Rfe8 24. Rae1 Qa5
25. Bd3 Bg6 26. Re2 Bh5 27. Ree1 c5 28. b4 cxb4 29. Nb5 Qb6 30. Qxb4 Qd8 31.
Nd6 a5 32. Qa3 Rf8 33. Nxf5 Rc7 34. Qxa5 Bg6 35. Bb1 Qb8 36. Ng3 {Sevian,S
(2693)-Tari,A (2650) Chess.com INT 2022 1-0}) 7. c4 O-O 8. Be2 c5 9. Bxf6 Bxf6
10. Nc3 b6 11. O-O Bb7 12. Rc1 g6 {[#]} 13. d3 $146 ({Predecessor:} 13. h3 Qe7
14. d3 Bxc3 15. Rxc3 d5 16. cxd5 Bxd5 17. d4 Qf6 18. f3 Qg7 19. Bc4 cxd4 20.
exd4 Rad8 21. Bxd5 Rxd5 22. Rc7 Rxd4 23. Qc1 a5 24. Re7 exf3 25. Rxf3 Rd6 26.
Qf4 Rc6 27. Kh2 Rc2 {1/2-1/2 (27) Gounant,S (2198)-Cirulis,I (2239) FICGS
email 2020}) 13... Bxc3 14. Rxc3 d5 15. d4 Qf6 16. Qd2 Rfd8 17. Rd1 Rac8 18.
Qb2 cxd4 19. Rxd4 dxc4 20. Rcxc4 Rxc4 21. bxc4 Rxd4 22. Qxd4 Qe7 23. h3 h5 24.
Bd1 h4 25. Kf1 Bc8 26. Bb3 Bf5 27. Kg1 Kh7 28. Qd5 Kg7 29. Qd4+ Kh7 {0.01} *
[Event "#1 - Overview"]
[Site "?"]
[Date "2022.07.18"]
[Round "?"]
[White "Stockfish Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Annotator "gmmat"]
[PlyCount "61"]
1. e4 (1. Nf3 {[d=68, 1269932Mn]} d5 2. g3 g6 {A line I first noticed when
Anand used it against Magnus Carlsen in the 1st game of their first World
Championship match.} 3. Bg2 Bg7 4. d4 Nf6 5. c4 c6 6. cxd5 cxd5 7. Nc3 Nc6 8.
Ne5 Bd7 9. Bf4 e6 10. Qd2 Nxe5 11. Bxe5 O-O 12. O-O {[#]} Qe7 $146 ({
Predecessor:} 12... Bc6 13. Rfd1 Rc8 14. Rac1 Nd7 15. Bxg7 Kxg7 16. e3 Nb6 17.
b3 Qe7 18. Qb2 Kg8 19. h4 h5 20. Qd2 Qb4 21. Bf1 a5 22. Bd3 Kg7 23. Ne2 Qxd2
24. Rxd2 Ra8 25. a3 Nc8 26. Rdc2 Nd6 27. Rc5 Kf6 28. f3 Ke7 29. Kf2 Rfc8 30.
Nf4 Kd7 31. g4 a4 32. b4 b6 33. R5c3 Bb5 34. gxh5 Rxc3 35. Rxc3 gxh5 36. Bxb5+
Nxb5 37. Rd3 Rg8 38. e4 dxe4 39. fxe4 Rg4 40. Nxh5 Rxh4 41. Ng3 Rh2+ 42. Ke3 {
Yermolinsky,A (2625)-Almasi,Z (2650) Groningen 1998}) 13. Rac1 b5 14. Nb1 Rfc8
15. Rxc8+ Rxc8 16. Rc1 Rc4 17. b3 Rxc1+ 18. Qxc1 Ne8 19. e3 Bf8 20. Nd2 Qd8 21.
e4 Nf6 22. Qc3 Be7 23. Bxf6 Bxf6 24. exd5 Qb6 25. dxe6 Bxe6 26. Nf3 b4 27. Qc5
Qa6 28. d5 Bf5 29. Qc6 Qxc6 30. dxc6 Kf8 31. Kf1 Ke7 32. Nd2 Bd4 33. Ke2 f6 34.
c7 {0.25 DragonOpenings-001 1.e4 Berlin / Petroff 2022 [gmmat]}) (1. c4 e5 2.
g3 {All the engines want to follow up 1.c4 in this way.} Nf6 3. Bg2 Bc5 4. d3
Nc6 {Most engines prefer ...c6 systems.} 5. Nc3 O-O 6. a3 a5 7. e3 d6 8. Nge2
Ne7 9. d4 Ba7 10. O-O c6 {[#]} 11. b3 $146 ({Predecessor:} 11. b4 Bg4 12. h3
Be6 13. Qd3 h6 14. Bb2 Ng6 15. f4 e4 16. Nxe4 Nxe4 17. f5 d5 18. fxe6 f5 19.
cxd5 cxd5 20. Qb5 Qg5 21. Rf3 Nd2 22. Qxd5 Ne7 23. Qxb7 Rfb8 24. h4 Qf6 25. Qd7
Rd8 26. Qb5 Nxf3+ 27. Bxf3 Qxe6 28. Bxa8 Qxe3+ 29. Kh2 Rxa8 30. Rf1 axb4 31.
axb4 Rc8 32. Bc1 Qe4 33. Rf4 Qe6 34. Qd3 Nd5 35. Rxf5 Nxb4 36. Qf3 Bb8 37. d5
Qe7 38. Kh3 Rc2 39. Ba3 Bd6 40. Nd4 Ra2 {Vallejo Pons,F (2708)-Deepan
Chakkravarthy,J (2476) Pattaya 2015 1-0}) 11... Re8 12. h3 e4 13. d5 cxd5 14.
Nb5 Bc5 15. Rb1 Bd7 16. Bb2 dxc4 17. Nxd6 Bxd6 18. Qxd6 Be6 19. Qxd8 Raxd8 20.
Bxf6 gxf6 21. bxc4 Bxc4 22. Rfe1 b5 23. Bxe4 Bxe2 24. Rxe2 Nd5 25. Bxd5 Rxd5
26. Rc2 Rb8 27. Rb3 Kg7 28. Rc7 Rb6 29. Kf1 Kg6 30. Re7 Re5 31. Rd7 Rc5 32. Kg2
h5 33. Rd8 Rb7 34. Kf1 b4 35. axb4 Rcb5 36. Rd2 axb4 37. Ke2 f5 38. Kf1 R5b6
39. Rdb2 Rb5 {0.07}) (1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6
Qxf6 7. e3 O-O 8. Qb3 c5 9. cxd5 exd5 10. dxc5 Bxc3+ 11. Qxc3 Qxc3+ 12. bxc3
Nd7 13. Rd1 Nf6 14. Nd4 Bd7 15. f3 Rfc8 16. Nb3 Ba4 17. Rd4 Bxb3 18. axb3 Rxc5
19. Kd2 {Many Stockfish 8 - AlphaZero games were played in this variation -
amazing how little some best choices for engines have changed since that match!
} a5 (19... Ra5 {was AlphaZero's choice that also led to many draws.}) 20. Bd3
Rac8 21. Rc1 {[#]} R8c7 $146 ({Relevant:} 21... Kf8 22. g4 Ke7 23. h4 g6 24. b4
axb4 25. Rxb4 R8c7 26. Rcb1 Rxc3 27. Rxb7 h5 28. g5 Nd7 29. Rxc7 Rxc7 30. f4
Ra7 31. Bc2 Kd6 32. e4 dxe4 33. Bxe4 Ra4 34. Ke3 Ra3+ 35. Kd4 Rh3 36. Rh1 Rg3
37. Rd1 Nf8 38. f5 Rh3 39. Ra1 gxf5 40. Ra6+ Ke7 41. Ra7+ Kd6 42. Ra6+ Ke7 43.
Ra7+ {1/2-1/2 (43) Swiercz,D (2647)-Caruana,F (2800) Riga 2021}) 22. Rc2 Kf8
23. h4 g5 24. hxg5 hxg5 25. Ra4 Ke7 26. b4 axb4 27. cxb4 Rxc2+ 28. Bxc2 Kd6 29.
Bb3 Kc6 {0.13}) 1... e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 {Once again,
this line of the Berlin comes out as best play for both sides from the
starting position!} Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1
Re8 11. Bf4 Rxe1 12. Qxe1 Ne8 13. c3 d5 {The same line as Komodo Dragon and
Koivisto!} 14. Nd2 ({Relevant:} 14. Bd3 g6 15. Nd2 Ng7 16. Nf3 {was Koivisto's
main line!} (16. Qe2 c6 17. Re1 Bf5 18. Bxf5 Nxf5 19. Nf3 Ng7 20. Be5 Bxe5 21.
Nxe5 Qd6 22. Qf3 f6 23. Ng4 Re8 24. Re5 Kf7 25. Nh6+ Kf8 26. Ng4 Kf7 27. Nh6+
Kf8 28. Ng4 Kf7 {1/2-1/2 (28) Wang,H (2744)-So,W (2776) Stavanger 2022}) 16...
Bf5 17. Bxf5 Nxf5 18. Qd2 a5 19. Re1 Nd6 20. g3 Ne4 21. Qc2 a4 22. Nd2 Nd6 23.
a3 h5 24. h4 c6 25. Bxd6 Qxd6 26. Nf3 b5 27. Qd3 Qd7 28. Ne5 Bxe5 29. Rxe5 {
0.36: Koivisto Opening Repertoire}) 14... Nd6 15. Qe2 Bf5 16. Re1 c6 17. Nb3 {
[#]} (17. Qf3 {was Komodo Dragon's line!} Ne4 18. Nxe4 Bxe4 19. Qg3 Bg6 20. Bc7
Qd7 21. Qd6 Qxd6 22. Bxd6 Bf5 23. f3 h5 24. Kf2 g6 25. g3 a5 26. Bf4 g5 27. Bd6
Kg7 28. h3 h4 29. g4 Be6 {0.29: Komodo Dragon Repertoire}) 17... b6 $146 ({
Predecessor:} 17... h6 18. Qf3 Bg6 19. Nc5 Ne4 20. Nd3 a5 21. Qe3 Bf5 {1/2-1/2
(21) Ress,J (2303)-Almeida,R (2223) LSS email 2021}) 18. Nd2 Bg5 19. Qf3 Bxf4
20. Qxf4 Qd7 21. h4 h6 22. Re3 Rd8 23. Be2 Be6 24. Bd3 Bf5 25. Bf1 Be6 26. Nf3
f6 27. Nh2 Bf5 28. Be2 Nc4 29. Bxc4 dxc4 30. Re1 Be6 31. Nf1 {0.29} *
[Event "#2 - 1.e4 main lines"]
[Site "?"]
[Date "2022.07.18"]
[Round "?"]
[White "Stockfish Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "B00"]
[Annotator "gmmat"]
[PlyCount "61"]
1. e4 e5 (1... e6 {[d=72, 1557422Mn]} 2. d4 d5 3. Nc3 Nf6 (3... Bb4 {[d=76,
1740141Mn]} 4. e5 c5 5. a3 Ba5 {A huge shock! Koivisto was very keen on this
line for much of its analysis, only plumping much later for 5...Bxc3+.
Stockfish never changes its mind throughout its huge analysis (more than a
million million nodes!) It puts me in mind very much of the strength of the
move ...Ba5 in Rubinstein Nimzo-Indian lines (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3
c5 5.Nge2 d5 6.a3 Ba5 being one example).} 6. b4 cxd4 7. Qg4 Kf8 8. Nb5 ({
Relevant:} 8. bxa5 dxc3 9. Nf3 Nc6 10. Bd3 Nge7 11. O-O Ng6 12. Qg3 Bd7 13. h4
Qc7 14. Re1 Nge7 15. a4 h6 16. Ba3 Qxa5 17. Rab1 b6 18. Bb5 a6 19. Bxc6 Bxc6
20. Nd4 Qxa4 21. Bxe7+ Kxe7 22. Rb4 Qa2 23. Nxc6+ Kd7 24. Rxb6 Qxc2 25. Qxg7
Qg6 26. Qxg6 fxg6 27. Nd4 Rhc8 28. Rd6+ Ke7 29. Rxe6+ Kf7 30. Rb6 Rc4 31. e6+
Ke8 32. Nc2 d4 33. Rd6 Rd8 34. Rxd8+ Kxd8 35. Rd1 Ke7 36. Rxd4 Rc5 37. Ra4 Rd5
{Andreikin,D (2724)-Abdusattorov,N (2634) Chess.com INT 2021 1-0}) 8... Bb6 9.
Nf3 Nc6 10. Bb2 f6 11. Nbxd4 Nxe5 12. Nxe5 fxe5 13. Nxe6+ Bxe6 14. Qxe6 Qf6 15.
Qxf6+ gxf6 16. f4 {[#]} Rc8 $146 ({Predecessor:} 16... e4 17. O-O-O Rd8 18. Kb1
Kf7 19. c4 Nh6 20. Be2 Nf5 21. cxd5 h5 22. a4 Kg6 23. a5 Be3 24. g3 a6 25. Bc4
Bf2 26. Rd2 e3 27. Re2 Ne7 28. Rd1 Rd6 29. Bc1 Rhd8 30. Bxe3 Bxe3 31. Rxe3 Nxd5
32. Rxd5 Rxd5 33. Bxd5 Rxd5 34. Kc2 Rb5 35. Kb3 b6 36. axb6 Rxb6 37. Ka4 Kf5
38. Re8 {1/2-1/2 (38) Schroeder,C (2275)-Perevozchikov,V (2205) FICGS email
2021}) 17. O-O-O Be3+ 18. Kb1 d4 19. fxe5 fxe5 20. Bd3 Nf6 21. Rhf1 Kg7 22. Rf3
Rhf8 23. Rh3 b6 24. Rf1 Ne4 25. Rxf8 Nd2+ 26. Ka2 Kxf8 27. Bxh7 a5 28. Bf5 Rc6
29. Bc1 axb4 30. axb4 Nc4 31. Be4 Rd6 32. Bd3 Bxc1 33. Bxc4 e4 34. Kb3 Kg7 35.
Rh4 d3 36. Rxe4 d2 37. Be2 d1=Q 38. Bxd1 Rxd1 39. Re6 Kf7 40. Rxb6 Rd2 41. Rb7+
Kf6 42. c4 Rxg2 43. h4 Ke6 44. Rb6+ Kd7 45. h5 Rh2 46. c5 Rxh5 47. Rg6 {0.78})
4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 {Gradually becoming more and more
popular at the elite level. 7...cxd4 and 7...a6 have traditionally been the
main moves.} (7... cxd4 8. Nxd4 Qb6 {This concrete line was Komodo Dragon's
favourite. [d=77, 1273050Mn]} 9. Qd2 Qxb2 10. Rb1 Qa3 11. Bb5 Nxd4 12. Bxd4 a6
13. Bxd7+ Bxd7 14. Rb3 Qe7 15. Rxb7 Qd8 ({Relevant:} 15... Qh4+ 16. Bf2 Qd8 17.
Bb6 Qc8 18. Rc7 Qd8 19. Qd4 Ba3 20. Nb1 Be7 21. c4 O-O 22. cxd5 exd5 23. Nc3
Rc8 24. Rxc8 Qxc8 25. O-O Qc6 26. Nxd5 Ba3 27. Rf3 Qc1+ 28. Rf1 Qc6 29. Rf3
Qc1+ 30. Rf1 Qc6 {1/2-1/2 (30) So,W (2778)-Grischuk,A (2742) Chess.com INT 2022
}) (15... Rc8 16. O-O Qd8 $1 17. f5 exf5 {[#]} 18. Qe3 $146 {[%cal Oe5e6]} (18.
Nxd5 $2 Bc6 19. Rxf7 Kxf7 $19) ({Predecessor:} 18. Qd3 Bc5 19. Bxc5 Rxc5 20.
Nxd5 Bb5 21. Qxf5 O-O 22. c4 Bxc4 23. Rd7 Rxd5 24. Rxd8 Rdxd8 25. Ra1 Be6 26.
Qc2 {1/2-1/2 (26) Voronin,A (2426)-Oliveira,M (2436) ICCF email 2017}) 18...
Rc6 19. Rfb1 (19. Nxd5 $2 Bc8 20. Nf6+ gxf6 $19) 19... Bc8 20. R7b6 Rc4 {[#]}
21. Rd6 $1 Bxd6 22. exd6+ Be6 23. Bxg7 Rg8 24. Nxd5 {Threatening Nf6+} Rxg7 25.
Qe5 Rg8 26. Nf6+ Kf8 27. Nxh7+ Ke8 28. Rb7 Rxc2 29. g3 $1 Rd2 30. Nf6+ Kf8 31.
d7 Rxd7 32. Rb8 Rd1+ 33. Kf2 Rd2+ 34. Ke3 Rd3+ 35. Kf4 Rd4+ 36. Kf3 Rd3+ 37.
Ke2 Rd2+ 38. Ke1 Rd1+ 39. Ke2 Bc4+ 40. Kf3 {[%cal Rf6h7]} Rd3+ 41. Kf4 {
[%cal Rf6h7]} Rd4+ 42. Ke3 {[%cal Rf6h7]} Rd3+ 43. Kf2 {[%cal Rf6h7]} Rd2+ 44.
Kg1 {[%cal Rf6h7]} Rd1+ 45. Kg2 {[%cal Rf6h7]} Rd2+ 46. Kg1 {[%cal Rf6h7]} Rd1+
47. Kg2 {[%cal Rf6h7]} Rd2+ 48. Kf3 {[%cal Rf6h7]} Rd3+ $1 49. Kf2 {[%cal
Rf6h7]} Rd2+ 50. Kf3 {[%cal Rf6h7]} Rd3+ $1 {1/2-1/2 (50) AlphaZero-Stockfish
8 London, UK 2018}) 16. O-O Qc8 17. Rb3 Bc5 18. f5 Bxd4+ 19. Qxd4 Qc4 20. Qxc4
dxc4 {[#]} 21. Rb6 $146 ({Predecessor:} 21. Rb7 exf5 22. Rfb1 Bc8 23. R7b4 O-O
24. Rxc4 Be6 25. Rc6 Rfc8 26. Rbb6 h6 27. a4 Bd7 28. Rd6 Rxc3 29. Rxd7 Rxc2 30.
Rbb7 Rf8 31. e6 Re2 32. exf7+ Kh7 33. Rb6 a5 34. Rb5 Kg6 35. Rxa5 Rxf7 36. Ra6+
Rf6 37. Raa7 Ra2 38. Rxg7+ Kh5 39. Rg3 Rg6 40. Rh3+ Kg5 41. Rf3 Rc6 42. h4+ Kg6
43. h5+ Kxh5 44. Rg7 Rc1+ 45. Kh2 Rc4 46. Rxf5+ Kh4 47. Rf3 Kh5 48. Kh3 Rh4+
49. Kg3 Ra3 50. Rxa3 Rh3+ {Bulmaga,I (2390)-Cosma,E (2281) Eforie Nord 2022 1/
2-1/2 (66)}) 21... exf5 22. Nd5 O-O 23. Ne7+ Kh8 24. Nxf5 Bxf5 25. Rxf5 Kg8 26.
Rf4 c3 27. Rf3 Rfe8 28. Rb7 Rxe5 29. Rfxf7 Rg5 30. Rfc7 Rd8 31. Rxc3 h6 32. Rd3
Re8 33. Rd2 Rc5 34. Kf1 a5 35. Rb2 a4 36. Rb4 Rec8 37. Rxa4 Rxc2 38. Rad4 Kh7
39. Ke2 Rc1 40. Rd1 R1c2+ 41. R4d2 R2c3 42. Rb2 Ra8 43. Rdd2 Rc1 44. Rdc2 Rh1
45. h3 Ra3 46. Rb3 Ra8 47. Ke3 Rd1 48. Rbb2 Ra1 49. Kd4 Re1 50. Kc4 Re3 51. Kb4
Rb8+ 52. Kc5 {0.14}) 8. a3 {Not a very common move.} Qb6 9. Rb1 cxd4 10. Nxd4
O-O 11. Qd2 Qc7 12. Bd3 {[#]} Nc5 $146 ({Predecessor:} 12... Nxd4 13. Bxd4 Nc5
14. Qe3 Nxd3+ 15. cxd3 b6 16. Rc1 Qd8 17. Kd2 Bd7 18. h4 b5 19. Bc5 Bxc5 20.
Qxc5 b4 21. axb4 f6 22. Ne2 fxe5 23. fxe5 Rb8 24. b3 a5 25. Qxa5 Qe8 26. Rc7
Bb5 27. h5 Ra8 28. Ra7 Rxa7 29. Qxa7 {1-0 (29) Rausch,W (2005)-Taffijn,M (2119)
ICCF email 2020}) 13. Be2 Nxd4 14. Bxd4 b6 15. O-O Ne4 16. Nxe4 dxe4 17. c3 Bb7
18. Qe3 h6 19. Rbd1 Rad8 20. b4 Bd5 21. Bb5 Rc8 22. h3 Rcd8 23. Be2 Rd7 24. Rf2
Qc6 25. g4 Bh4 26. Rg2 g5 27. Rf1 Rfd8 28. b5 Qb7 29. f5 Bb3 30. Kh2 Qd5 31. a4
Rc7 32. fxe6 fxe6 33. Rf6 Kg7 34. Rg1 Bxa4 35. Rb1 Qa2 36. Qxe4 Bc2 {0.61}) (
1... c6 {[d=70, 1306829Mn]} 2. Nc3 (2. d4 d5 3. e5 {[d=70, 1323319Mn] The
favourite move of my other engines but not Stockfish!} Bf5 (3... c5 {The
Khenkin-Arkell line [d=64, 398154Mn] A favourite of Stockfish 8 but not this
Stockfish!} 4. Nf3 cxd4 5. Qxd4 Nc6 6. Qf4 e6 7. Nc3 ({Relevant:} 7. Bd3 Nb4 8.
Nc3 Bd7 9. O-O Rc8 10. Be3 a6 11. Rac1 Nh6 12. Nd4 f6 13. Qg3 fxe5 14. Qxe5 Nf7
15. Qg3 Qf6 16. f4 Bc5 17. Nb3 b6 18. Qf2 Bd6 19. Bxb6 Nxd3 20. cxd3 O-O 21.
Bc5 Bb5 22. Nxb5 axb5 23. g3 b4 24. d4 Ra8 25. Ra1 Ra4 26. Bxd6 Nxd6 27. Nc5
Ra7 28. Rfe1 Re8 29. Re5 Nf7 30. Re2 Nd6 31. Rae1 Rxa2 32. Rxe6 Rxe6 33. Rxe6
Qf5 34. Re1 h6 35. Qe2 Nc4 36. Qe8+ Kh7 {Aronian,L (2775)-Jumabayev,R (2628)
Chess.com INT 2022 1-0}) 7... Nb4 {[#]This line also featured heavily in
AlphaZero-Stockfish 8 games. There's a lovely example of that in "The Silicon
Road to Chess Improvement" (game 55)} 8. Qd2 $146 ({Predecessor:} 8. Bd3 Bd7 9.
Bd2 Rc8 10. O-O Nh6 11. Nd4 Bc5 12. Nce2 Nxd3 13. cxd3 f6 14. Qg3 Nf7 15. Qxg7
fxe5 16. Nf3 Bf8 17. Qg4 Qf6 18. d4 e4 19. Ne5 Rc2 20. Rad1 Nxe5 21. dxe5 Qg6
22. Qh3 Rg8 23. Nf4 Qg4 24. Qxh7 Rxd2 25. Rxd2 Qxf4 26. Qxg8 Qxd2 27. f3 e3 28.
Qg6+ Kd8 29. Qg8 Ke8 30. Qg6+ Kd8 31. Qg8 Qb4 32. Rc1 e2 33. Kf2 Bb5 34. a4
Qd4+ 35. Kg3 Qxe5+ 36. Kf2 Qd4+ 37. Kg3 Qe5+ {Kadric,D (2576)-Jumabayev,R
(2628) Sharjah 2022 1/2-1/2}) 8... a6 9. a3 Nc6 10. Bd3 Nge7 11. O-O Ng6 12.
Re1 Be7 13. Bxg6 hxg6 14. Qd3 Rh5 15. Bf4 g5 16. Bg3 Bd7 17. h3 Na5 18. Nd4 Rh6
19. Nd1 Rc8 20. Ne3 Kf8 21. Qd1 Rh8 22. c3 Kg8 23. Qc2 Nc6 24. Nf3 Be8 25. Rad1
Nb8 26. Nd4 Nc6 27. Qe2 Nxd4 28. Rxd4 Bc5 29. Rd2 Ba7 30. Nc2 Qe7 31. Nd4 Rc4
32. f3 {0.60}) 4. Nf3 e6 5. Be2 c5 6. Be3 cxd4 7. Nxd4 Ne7 8. O-O Nbc6 9. Bb5
a6 10. Bxc6+ bxc6 11. c4 Qd7 12. Nc3 dxc4 13. Na4 Nd5 14. Nxf5 exf5 15. Qc2
Nxe3 16. fxe3 Qd3 17. Qxd3 cxd3 18. Rxf5 Rd8 19. Raf1 Rd5 20. Nb6 Rc5 21. Rd1 {
[#]} Bd6 $146 ({Predecessor:} 21... Rc2 22. Na4 d2 23. Rf2 Bc5 24. Nxc5 Rxc5
25. Rdxd2 {1/2-1/2 (25) Perry,D (2497)-Marbourg,D (2477) ICCF email 2021}) 22.
Nc4 Bb8 23. b3 Rd5 24. Kf2 Ke7 25. e4 Rd4 26. Rf3 d2 27. Ke3 Ba7 28. Kf4 Ke6
29. Rg3 Bb8 30. Ke3 Ba7 31. Ke2 Rxe4+ 32. Kf3 Re1 33. Rxd2 Rf1+ 34. Ke2 Rf2+
35. Kd1 Rxd2+ 36. Nxd2 Rg8 37. Rg4 Bb8 38. Nf3 a5 39. Ke2 h5 40. Rc4 Bxe5 41.
Rxc6+ Bd6 {0.26}) 2... d5 3. d4 {A real surprise: all of the other engines
prefer the Advance Caro-Kann with a preference for the Short system (4.Nf3 5.
Be2 against the 3...Bf5 main line).} dxe4 4. Nxe4 Nf6 (4... Bf5 {[d=66,
665810Mn] This is Stockfish's main line at lower (though not exactly low!)
depths before it switches to 4...Nf6.} 5. Ng3 Bg6 6. h4 h6 7. Nf3 e6 8. h5 Bh7
9. Bd3 Bxd3 10. Qxd3 Nf6 11. Bd2 Be7 12. O-O-O Nbd7 13. Ne4 Nxe4 14. Qxe4 Nf6
15. Qe2 Qd5 16. c4 Qe4 17. Qxe4 Nxe4 18. Be3 ({Relevant:} 18. Be1 Bf6 19. Ne5
Nd6 20. b3 Nf5 21. Bc3 Rd8 22. g4 Bg5+ 23. Kc2 Nd6 24. Rhe1 Bf6 25. f4 Bxe5 26.
dxe5 Nc8 27. Bb4 Rxd1 28. Rxd1 Rg8 29. f5 exf5 30. gxf5 Ne7 31. Bxe7 Kxe7 32.
Rg1 Re8 33. Kd3 Kf8 34. Ke4 Rd8 35. Rg2 Rd1 36. Rg3 Rh1 37. Rd3 Rh4+ 38. Kf3
Ke8 39. Rd6 Rxh5 40. Kg4 Rg5+ 41. Kf4 Ke7 42. c5 Rg1 43. f6+ Ke8 44. fxg7 Rxg7
45. Rxh6 Rg2 46. Rh8+ Kd7 47. Rb8 Rxa2 {Mamedov,R (2656)-Adly,A (2596) Europe
Echecs INT 2021 1/2-1/2}) 18... b5 19. Ne5 {[#]} bxc4 $146 ({Predecessor:}
19... Rc8 20. Kb1 bxc4 21. Nxc4 O-O 22. Nd2 Nf6 23. Rc1 Rfd8 24. Nb3 Rd5 25.
Rc2 Bd8 26. Rhc1 Bb6 27. Rxc6 Rxc6 28. Rxc6 Rxh5 29. Nc5 Rh1+ 30. Kc2 g5 31. a3
Kg7 32. Na4 Nd5 33. Nxb6 axb6 34. Kd3 Kg6 35. Rc8 f5 36. g3 Rh2 37. Rc2 f4 38.
gxf4 gxf4 39. Bc1 Kf5 40. Re2 h5 41. Re5+ Kf6 42. Ke2 Rh3 43. Bd2 b5 44. Re4
Rb3 45. Bc3 Rxc3 46. bxc3 Nxc3+ 47. Kd3 Nxe4 48. Kxe4 Kg5 49. Kf3 {Azizi,
M-Barbosa,O (2433) Bandar Seri Begawan 2010 0-1}) 20. Nxc4 O-O 21. Ne5 Rfb8 22.
Kc2 Bd6 23. Nd3 Rb5 24. a4 Rd5 25. Rc1 Rb8 26. Kb1 Rb3 27. Rhd1 Rb6 28. g4 f5
29. f3 Nf6 30. Rg1 fxg4 31. fxg4 Rb3 32. Kc2 Rb8 33. Rce1 Re8 34. b3 Kh7 35.
Rg2 Nd7 36. g5 hxg5 37. Bxg5 Rxd4 {0.45}) 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8.
Ne2 Nd7 {A rather unusual move order: 8...Re8 is more normal.} (8... Re8 {
[d=60, 291299Mn]} 9. Qc2 h6 {Again Stockfish doesn't want the ...h5 systems
which have been so popular. But if we force him...!} (9... h5 {[d=65, 453000Mn]
} 10. O-O h4 11. h3 Nd7 12. Bd2 Nf8 13. Rae1 g6 14. Nf4 {[#]} Be6 $146 ({
Predecessor:} 14... Rxe1 15. Rxe1 Bxf4 16. Bxf4 Be6 17. Bd2 b5 18. Re4 f5 19.
Re5 Nd7 20. Re1 Nf8 21. Bf4 Bd5 22. b3 Ne6 23. Bc1 Qf6 24. Qd2 Rd8 25. Bb2 Qg5
26. Qxg5 Nxg5 27. Re7 a5 28. f3 Kf8 29. Ra7 Re8 30. Ba3+ Kg8 31. Be7 Nh7 32. c4
bxc4 33. bxc4 Be6 34. Bxh4 g5 35. Bf2 Rb8 36. Rxa5 Rb4 37. d5 cxd5 38. cxd5 Bd7
39. Ra8+ Kg7 40. Bc5 {1-0 (40) Kovchan,A (2577)-Omorjan,D (2345) Novi Sad 2022}
) 15. Nxe6 Nxe6 16. Bc4 Qd7 17. Qe4 Nf4 18. Qf3 Qc7 19. Qg4 Kg7 20. Qxh4 b5 21.
Bb3 Rh8 22. Qg4 Rh5 23. Bxf4 Bxf4 24. Re2 Bh2+ 25. Kh1 Bd6 26. Rd1 a5 27. Qe4
Rd8 28. a3 Bf8 29. Re3 Rf5 30. Rf3 Rxf3 31. Qxf3 c5 32. dxc5 Rxd1+ 33. Qxd1
Bxc5 34. Qd2 Qe7 35. Kg1 Qe5 36. Bc2 Bb6 37. Bd1 Bc5 38. Bf3 Bb6 39. Kf1 Qf5
40. Bd1 Qe4 41. Bc2 Qc4+ 42. Qe2 Qf4 43. g3 Qc1+ 44. Bd1 b4 45. axb4 {0.43}))
9. Qc2 h6 10. O-O Re8 11. Be3 (11. Bd2 Nf8 12. Rae1 Bg4 {[#]} ({Relevant:}
12... Qc7 13. h3 Be6 14. f4 c5 15. f5 Bd7 16. dxc5 Qxc5+ 17. Nd4 Bc6 18. b4 Qb6
19. Kh1 Rac8 20. Nxc6 bxc6 21. c4 Rxe1 22. Rxe1 Qf2 23. Re4 Qg3 24. Kg1 Qh2+
25. Kf1 Rd8 26. c5 Bg3 27. Qc4 Qh1+ 28. Ke2 Qxg2+ 29. Kd1 Be5 30. Kc2 Qxh3 31.
Re3 Qg2 32. Qe4 Qg1 33. Re1 Qg3 34. Re3 Qg1 35. Re1 Qg3 36. Re3 {1/2-1/2 (36)
Tabatabaei,M (2623)-Harikrishna,P (2719) Belgrade 2022}) 13. h3 $146 ({
Predecessor:} 13. Ng3 Qd7 14. Nf5 Bc7 15. h3 Bh5 16. c4 Bg6 17. Bc3 Rad8 18. b4
Bb8 19. a4 Qc7 20. g3 Ne6 21. Rd1 Ng5 22. Kg2 Qd7 23. h4 Ne6 24. a5 a6 25. Rfe1
Nf8 26. Re3 Rxe3 27. fxe3 Qc7 28. Qf2 Bh5 29. Re1 Ne6 30. e4 Bg6 31. d5 cxd5
32. exd5 Nf8 33. Ne7+ Kh7 34. Nxg6 fxg6 35. h5 f5 36. hxg6+ Nxg6 37. Bxf5 Qxc4
38. Qc2 Qxd5+ 39. Be4 Qg5 40. Bxg6+ Qxg6 41. Qxg6+ Kxg6 42. Re7 Rd3 {Belenkaya,
D (2304)-Nikolova,A (2243) Chess.com INT 2021 0-1}) 13... Bh5 14. Nf4 Bxf4 15.
Bxf4 Bg6 16. Rxe8 Qxe8 17. Be3 Rd8 18. b3 Qe6 19. Rd1 a6 20. c4 f5 21. Qc1 Qf6
22. Bf1 f4 23. Bxf4 Rxd4 24. Rxd4 Qxd4 25. Be3 Qd6 26. Qd2 Qxd2 27. Bxd2 Bb1
28. a3 Ba2 29. b4 Bb3 30. Bc3 f6 31. f4 Ng6 32. g3 Ne7 33. Bd3 Kf7 34. f5 {
New game}) 11... Nf8 12. h3 Be6 13. Nf4 Qc7 14. Qd2 Bxf4 15. Bxf4 Qd7 {[#]} 16.
Rfd1 $146 ({Predecessor:} 16. Qc2 {A game by rather low-rated players as stem
game for Stockfish!} Rad8 17. Rad1 Qd5 18. a3 b5 19. Rfe1 Qb3 20. Qc1 Bd5 21.
Bc2 Qc4 22. b3 Qxc3 23. Bh7+ Nxh7 24. Qxc3 Kf8 25. Rxe8+ Rxe8 26. Re1 Rd8 27.
Bc7 Rc8 28. Bd6+ Kg8 29. Bc5 a6 30. b4 Ng5 31. Qg3 Ne6 32. Rxe6 Bxe6 33. Qd6
Kh8 34. h4 Kg8 35. f3 Kh8 36. g4 Kg8 37. g5 fxg5 38. hxg5 h5 39. g6 Bd5 40.
gxf7+ Bxf7 41. Qd7 Re8 42. Kf2 Re6 43. Qd8+ Kh7 44. Qh4 Re8 45. Qg5 Kg8 {
Rayan,M (1213)-Fatima,S (1358) Ajman 2019 1-0}) 16... Ng6 17. Bg3 Ne7 18. f3 a5
19. Bf2 b5 20. b3 a4 21. c4 Reb8 22. Rac1 axb3 23. axb3 bxc4 24. bxc4 Bf5 25.
Bf1 Be6 26. Qc3 Ra2 27. Ra1 Raa8 28. Bg3 Rxa1 29. Qxa1 Rc8 30. Bf2 Rb8 31. Qa3
g5 32. d5 cxd5 33. Qc3 Kg7 34. Bd4 Ng8 35. c5 Qa4 36. Ra1 Qb4 37. Qxb4 Rxb4 {
0.48}) (1... c5 {[d=71/74, 2996574Mn] In the end, after some enormous amount
of analysis - nearly 3 million million nodes! - Stockfish plumps for a fairly
normal choice (6.f3/6.Be3 systems). Along the way however, it has flirted with
some fairly far-out stuff!} 2. Nf3 (2. Nc3 {[d=66, 985066Mn] Around 1 million
million nodes, things get a little bizarre in Stockfish's main line!} a6 3. Nf3
d6 4. g3 {Not surprising to see a Rapport game featuring in this odd line!} e5
({Relevant:} 4... b5 5. Bg2 Bb7 6. d3 Nf6 7. O-O e6 8. Ng5 h6 9. Nh3 Nbd7 10.
f4 Be7 11. Nf2 Qb6 12. a4 c4 13. Qe2 cxd3 14. cxd3 bxa4 15. Be3 Qc7 16. Rfc1
Qb8 17. Rxa4 a5 18. d4 O-O 19. h4 Nb6 20. Raa1 a4 21. g4 Nfd7 22. g5 hxg5 23.
hxg5 Ra5 24. Qh5 Rc8 25. e5 dxe5 26. dxe5 Nc4 27. Bd4 Nd2 28. Rd1 Nb3 29. Bh3
Nf8 30. Nce4 Nxa1 31. Nf6+ Bxf6 32. gxf6 gxf6 33. Ng4 Nh7 34. Nh6+ {Rapport,R
(2763)-Sarana,A (2656) Chess.com INT 2021 1-0}) 5. d3 g6 {[#]} 6. Bg5 $146 ({
Predecessor:} 6. a4 Bg7 7. Nd5 Nc6 8. Bg2 Nge7 9. Bg5 h6 10. Bf6 O-O 11. O-O
Bxf6 12. Nxf6+ Kg7 13. Nd5 Be6 14. Nd2 Bxd5 15. exd5 Nb4 16. c3 Nbxd5 17. Qb3
Nc7 18. d4 cxd4 19. cxd4 exd4 20. Qxb7 d5 21. Rac1 Ne6 22. b3 Qd6 23. Bxd5 Nxd5
24. Nc4 Qd8 25. Ne5 Nc3 26. Rfe1 Qd5 27. Qe7 Rae8 28. Qa7 Ng5 29. f4 Nh3+ {
0-1 (29) Zhang,X (2389)-Ju,W (2515) Hefei 2011}) 6... Be7 7. h4 h6 8. Bxe7 Nxe7
9. Bg2 Nbc6 10. Qd2 Be6 11. Nh2 Nd4 12. Nf1 Qd7 13. f4 O-O-O 14. Ne3 Kb8 15.
O-O-O f5 16. Kb1 exf4 17. gxf4 Rhf8 18. Rhf1 Rf7 19. Bh1 Rdf8 20. Qh2 Ka7 21.
Ncd5 fxe4 22. Nxe7 Rxe7 23. dxe4 Qa4 24. b3 Qb4 25. Qd2 Qxd2 26. Rxd2 d5 27.
Nxd5 Bxd5 28. exd5 Nf5 29. Rg1 Nxh4 30. d6 Rd7 31. Re1 Rfd8 32. Re6 Nf5 33. Be4
Rxd6 34. Rdxd6 Rxd6 35. Bxf5 Rd1+ 36. Kb2 gxf5 {0.29}) 2... d6 (2... Nc6 {
Stockfish starts off by preferring the Sveshnikov but around [d=59, 124530Mn]
it starts to prefer 3.Bb5! [d=64/78, 465495Mn]} 3. Bb5 (3. d4 {And what about
if we go for an Open Sicilian? [d=77, 1568487Mn]} cxd4 4. Nxd4 Nf6 5. Nc3 e5 6.
Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 Rb8 13.
a4 bxa4 14. Ncb4 Nxb4 15. cxb4 ({Relevant:} 15. Nxb4 O-O 16. Nc6 Qb6 17. Nxb8
Qxb2 18. Be2 Qxc3+ 19. Kf1 Be6 20. h4 Bd2 21. Nc6 Bb3 22. Ne7+ Kh8 23. Qb1 Qd4
24. Nf5 Qc5 25. Rh3 Bc3 26. Kg1 Bxa1 27. Qxa1 Rc8 28. Ne7 Qc1+ 29. Qxc1 Rxc1+
30. Kh2 h5 31. Bxa6 Rb1 32. Nc6 a3 33. Nb4 a2 34. Nxa2 Bxa2 35. Ra3 Be6 36. Be2
g6 37. g3 Rb2 38. Re3 Bg4 39. Bxg4 hxg4 40. Kg2 Rd2 41. Rc3 Kg7 42. Rc7 Rd4 43.
Rd7 Kf6 44. f3 Ke6 {Paravyan,D (2617)-Dubov,D (2711) Chess.com INT 2022 0-1})
15... Bd7 16. Bxa6 O-O 17. O-O Kh8 18. Bc4 f5 19. exf5 Rxf5 20. b3 axb3 21.
Qxb3 Be6 {[#]} 22. g3 $146 ({Predecessor:} 22. Qd3 Qc8 23. Ra7 Rf8 24. Rc7 Qd8
25. Rc6 Bf5 26. Qc3 Qd7 27. Rc7 Qe8 28. b5 Be4 29. Qg3 Qd8 30. Ra7 Bxd5 31.
Bxd5 Rxb5 32. Ra8 Qf6 33. Rxf8+ Qxf8 34. Be4 {1/2-1/2 (34) Koch,C (2250)
-Baranowski,T (2365) LSS email 2017}) 22... e4 23. Rad1 Qf8 24. b5 Qc8 25. Nb6
Qe8 26. Bxe6 Rxb5 27. Qc4 R5xb6 28. Qxe4 Rb4 29. Qe1 Bf6 30. Rxd6 R4b6 31. Qd1
Rxd6 32. Qxd6 Rd8 33. Qa6 Ra8 34. Qc4 Ra1 35. Rxa1 Bxa1 36. h4 g6 37. g4 Qd8
38. g5 Be5 39. Kg2 Qe7 {0.24}) 3... e6 4. O-O Nge7 5. Re1 Ng6 6. c3 Be7 ({
Relevant:} 6... a6 7. Bf1 Be7 8. d4 cxd4 9. cxd4 d5 10. exd5 exd5 11. Nc3 O-O
12. Be3 Be6 13. Na4 Bb4 14. Bd2 Qd6 15. Bxb4 Qxb4 16. h3 Rae8 17. Nc5 Bc8 18.
Rxe8 Rxe8 19. Qb3 Qxb3 20. Nxb3 f6 21. Rc1 Nge7 22. a3 Kf7 23. Bd3 h6 24. Kf1
g5 25. Ng1 h5 26. Ne2 h4 27. Nc3 f5 28. Ne2 Kf6 29. Nd2 Nd8 30. Rc3 Bd7 31. Nb3
Ne6 32. Nc5 Nxc5 33. Rxc5 Ke6 34. Rc3 Kd6 35. Rb3 b5 36. Rc3 {Grandelius,N
(2662)-Caruana,F (2800) Riga 2021 0-1 (68)}) 7. d4 cxd4 8. cxd4 d5 9. Nc3 dxe4
10. Nxe4 O-O 11. a3 {[#]} a6 $146 ({Predecessor:} 11... h6 12. Be3 a6 13. Bxc6
bxc6 14. Ne5 Nxe5 15. dxe5 Qxd1 16. Raxd1 Rb8 17. Re2 Rb5 18. f4 Rd5 19. Rc1 a5
20. Rec2 Bd7 21. Bc5 Bxc5+ {0-1 (21) Powers,A-Dudley,M (1967) ICCF email 2021})
12. Bxc6 bxc6 13. Bg5 f6 14. Bd2 Qd5 15. Rc1 a5 16. Nc3 Qh5 17. Na4 Rb8 18.
Rxc6 Bb7 19. Rcxe6 Rfd8 20. Rb6 Bd6 21. h3 Bxf3 22. Qxf3 Qxf3 23. gxf3 Nh4 24.
Rd1 Nxf3+ 25. Kg2 Rxb6 26. Nxb6 Nxd2 27. Rxd2 Bc5 28. Nc4 Rxd4 29. Rxd4 Bxd4
30. a4 Kf7 31. Nxa5 Bxb2 32. Nb3 Ke6 33. a5 Kd6 34. a6 Kc7 35. Nc5 Kb8 36. Ne6
f5 37. Kf3 Ka7 38. Kf4 Kxa6 39. Ng5 {0.51}) (2... e6 {[d=70, 725855Mn]} 3. Nc3
(3. d4 cxd4 4. Nxd4 a6 {[d=55/76, 127562Mn]} 5. Bd3 (5. h3 {was rather
mystifyingly a top move for Stockfish at lower depths!}) (5. Nc3 {[d=58/76,
165471Mn]} Qc7 6. Bd3 Nf6 7. O-O Bc5 8. Nb3 Ba7 9. Kh1 d6 10. f4 Bd7 ({
Relevant:} 10... Nc6 11. Bd2 Bd7 12. a4 h5 13. Qe2 h4 14. Rae1 Qd8 15. Be3 Nh5
16. Kg1 Ng3 17. hxg3 hxg3 18. Qg4 Bxe3+ 19. Rxe3 Qb6 20. Qxg3 Nb4 21. Qf2 O-O-O
22. Rg3 Qc7 23. Qd4 Nc6 24. Qf2 Rh6 25. Rh3 Rxh3 26. gxh3 Rh8 27. Kg2 Kb8 28.
a5 g5 29. fxg5 Ne5 30. Qg3 Bc6 31. Nd4 Qxa5 32. Nxc6+ bxc6 33. h4 Qb4 34. Nd1
Qd2+ 35. Nf2 Rg8 36. Rd1 Qb4 37. Be2 f6 38. b3 fxg5 39. hxg5 Nf7 40. c3 {
Carlsen,M (2862)-Firouzja,A (2749) Lichess.org INT 2021 1-0}) 11. Qe2 Nc6 12.
Bd2 h5 {[#]} 13. Be3 $146 ({Predecessor:} 13. Rae1 h4 14. Be3 Bxe3 15. Qxe3 h3
16. g3 O-O-O 17. a3 Kb8 18. Qe2 Ne7 19. a4 d5 20. e5 Ne4 21. Nxe4 dxe4 22. Bxe4
Bxa4 23. Rd1 Bb5 24. Bd3 Qc6+ 25. Kg1 Bxd3 26. Rxd3 Rxd3 27. cxd3 Qb6+ {
0-1 (27) Swarnavo,C (1840)-Hossain,E (2419) Dhaka 2019}) 13... Bxe3 14. Qxe3 h4
15. h3 Nh5 16. Kg1 Ne7 17. a4 Ng3 18. Rfe1 Rc8 19. f5 Nc6 20. Ne2 Nh5 21. Rf1
e5 22. Nc3 Nb4 23. a5 Ng3 24. Rfd1 f6 25. Qf2 Ke7 26. Rd2 Rhd8 27. Ne2 Nxd3 28.
cxd3 Nxe2+ 29. Rxe2 Bb5 30. Rc1 Qb8 31. Ree1 Bxd3 32. Qxh4 {0.44}) (5. c4 {
[d=59/74, 69839Mn]} Nf6 6. Nc3 Bb4 7. Qd3 d5 ({Relevant:} 7... O-O 8. e5 Ne8 9.
Bf4 d6 10. exd6 Bxd6 11. Bxd6 Qxd6 12. O-O-O Qc7 13. Qg3 Nd7 14. Qxc7 Nxc7 15.
Be2 Nf6 16. f4 Bd7 17. Bf3 Rab8 18. b4 Rfc8 19. Kb2 a5 20. a3 h5 21. Rhe1 axb4
22. axb4 g6 23. Kb3 Be8 24. Ra1 Rd8 25. Red1 Ng4 26. Bxg4 hxg4 27. b5 Kg7 28.
Kb4 Kf6 29. Nb3 Rxd1 30. Rxd1 Ke7 31. Na4 b6 32. Nc3 Ra8 33. Ra1 Rxa1 34. Nxa1
e5 35. fxe5 Ke6 36. c5 bxc5+ 37. Kxc5 {Dominguez Perez,L (2758)-Caruana,F
(2806) Saint Louis 2021 1/2-1/2 (67)}) 8. exd5 exd5 9. Be2 O-O 10. O-O Nc6 11.
Nxc6 bxc6 12. cxd5 Nxd5 13. Nxd5 Qxd5 14. Qg3 Bd6 15. Bf4 Bxf4 16. Qxf4 {[#]}
Qf5 $146 ({Predecessor:} 16... Be6 17. Rfc1 Qd7 18. Rc5 Rfd8 19. b3 a5 20. Bf3
Bd5 21. Bxd5 cxd5 22. Rd1 d4 23. h3 a4 24. Rd3 axb3 25. axb3 h6 26. Rc4 Qb5 27.
Rg3 Qb6 28. Rd3 Ra3 29. Rcxd4 Rxd4 30. Qxd4 Qxd4 31. Rxd4 Rxb3 {1/2-1/2 (31)
Grandelius,N (2666)-Pantsulaia,L (2564) Reykjavik 2021}) 17. Qxf5 Bxf5 18. b3
Rfd8 19. Rfd1 a5 20. Bf3 Kf8 21. Bxc6 Rxd1+ 22. Rxd1 Rc8 23. Bd5 Rc2 24. a4 Rb2
25. Re1 Bc2 26. g3 Bxb3 27. Bxb3 Rxb3 28. Re5 Ra3 29. Rxa5 h5 30. Kf1 Ra2 31.
Kg2 g6 32. Kf3 Kg7 33. h4 f6 34. Ke3 Kh6 35. f3 g5 36. Ke4 gxh4 37. gxh4 Kg6
38. Ra8 Rh2 39. f4 Re2+ 40. Kf3 {0.22}) 5... Bc5 6. Nb3 Ba7 7. Qe2 Ne7 {[#]} ({
Relevant:} 7... Nc6 8. Be3 d6 9. Nc3 Nf6 10. f4 b5 11. a3 e5 12. Bxa7 Rxa7 13.
f5 Nd4 14. Nxd4 exd4 15. Qf2 dxc3 16. Qxa7 cxb2 17. Rb1 Qa5+ 18. Ke2 O-O 19.
Qd4 Re8 20. Rhe1 Bxf5 21. Kf1 Bg6 22. Rxb2 Qxa3 23. Rb4 Qa5 24. Qxd6 h6 25. Rd4
Ng4 26. h3 Ne5 27. Qc5 Qd2 28. Rd5 f6 29. Qe3 Qa5 30. Qd4 Bf7 31. Rd6 Nc4 32.
Ra1 Qd2 33. Bxc4 Qf4+ 34. Kg1 Bxc4 35. Rd8 Rxd8 36. Qxd8+ Kh7 37. Re1 {Duda,J
(2750)-Carlsen,M (2864) Oslo 2022 0-1}) 8. e5 $146 ({Predecessor:} 8. Be3 O-O
9. a4 Nbc6 10. O-O Bb8 11. N1d2 d5 12. c3 dxe4 13. Bxe4 Ne5 14. f4 N5g6 15. Nc4
Bc7 16. Rad1 Nd5 17. g3 b5 18. axb5 axb5 19. Na3 Ba6 20. Nc5 Bb6 21. Bxd5 exd5
22. Nxa6 Rxa6 23. Nxb5 Re8 24. Nd4 Bxd4 25. Rxd4 Rae6 26. Rd3 Ne7 27. Qf3 Qc7
28. Bf2 Qc4 29. Rfd1 Qb3 30. R1d2 Qa2 31. Kg2 g6 32. Bc5 Qb1 33. Qd1 Qa2 34. b3
Qa8 35. Qf3 Qa1 36. Bf2 Nf5 37. Qxd5 h5 {Vidit,S (2723)-Kovalenko,I (2674)
Chess.com INT 2022 1-0}) 8... O-O 9. Nc3 d6 10. exd6 Qxd6 11. Be3 Nd7 12. O-O-O
Qc7 13. Bg5 Nb6 14. Bxe7 Qxe7 15. Kb1 Rb8 16. a4 Qf6 17. Qe3 Ra8 18. Qe4 g6 19.
a5 Nd5 20. Nxd5 exd5 21. Qxd5 Rd8 22. Qe4 Rb8 23. f3 b6 24. axb6 Bxb6 25. Bc4
Bf5 26. Rxd8+ Rxd8 27. Qe2 a5 28. g4 Bd7 29. Nd2 Bc6 30. Ne4 Qf4 31. h4 Rd4 32.
Bd3 Kg7 33. c3 {0.75}) 3... Nc6 4. d4 cxd4 5. Nxd4 Nf6 (5... Qc7 {[d=70,
1344499Mn] Stockfish only wants 6.Be3 in reply and spends a lot of time on 7.
Qf3 as the follow-up but eventually plumps for...} 6. Be3 a6 7. g4 (7. Qf3 {
[d=61, 288616Mn]} b5 8. Qg3 Qxg3 9. hxg3 Nxd4 10. Bxd4 Bb7 11. f3 Ne7 {[#]} 12.
g4 $146 ({Predecessor:} 12. O-O-O Nc6 13. Be3 h6 14. g4 Rg8 15. Kb1 Rc8 16. a4
b4 17. Na2 Be7 18. Rh5 f6 19. Nc1 d6 20. Nb3 Kf7 21. Bb6 Rh8 22. Be2 Rhe8 23.
g3 Bd8 24. Be3 Bc7 25. f4 Ne7 26. Bd3 Bc6 27. Nd4 Bxa4 28. Bxa6 Ra8 29. Bc4 d5
30. exd5 exd5 31. Rxd5 Nxd5 32. Bxd5+ Kg6 33. Bxa8 Rxa8 34. Ne6 Rc8 35. b3 Bc6
36. Nxc7 Rxc7 37. Rd4 f5 38. Rc4 fxg4 39. Bd2 h5 40. Rc5 Rc8 41. Bxb4 h4 {
Karjakin,S (2762)-Dubov,D (2661) Berlin 2015 1-0}) 12... Nc6 13. Bf2 Bb4 14. a3
Ba5 15. a4 f6 16. Be2 Bxc3+ 17. bxc3 bxa4 18. Rxa4 Kf7 19. Kd2 a5 20. c4 Ba6
21. Rd1 Rhd8 22. Ke3 Ke7 23. Be1 Rdc8 24. Bg3 e5 25. Be1 h6 26. Rda1 Rab8 27.
Bc3 Rb7 28. Kd2 Rbc7 29. Bd3 Rb7 30. R1a3 Rbc7 31. Kd1 d6 32. Kd2 Ke6 33. Ke3
Rb7 34. Ra1 Ke7 35. R1a2 Kd7 36. Bxa5 Nxa5 37. Rxa5 Bxc4 {0.48}) 7... b5 8.
Nxc6 Qxc6 9. Qd2 b4 10. Ne2 Qxe4 11. Rg1 Qc6 12. Bg2 d5 13. O-O-O Bb7 14. f4
Nf6 15. f5 exf5 {[#]} 16. Nd4 $146 ({Predecessor:} 16. Nf4 O-O-O 17. gxf5 {
1/2-1/2 (17) Pasini,N (2227)-Carnicelli,V (2324) Acqui Terme 2022}) 16... Qc4
17. b3 Qc3 18. Qxc3 bxc3 19. Nxf5 O-O-O 20. Rd3 Nxg4 21. Bf4 Kd7 22. Bxd5 Bxd5
23. Rxg4 Kc6 24. Rxc3+ Kb7 25. Rc7+ Ka8 26. Ne7 Be6 27. Rh4 Re8 28. Bd6 Bxe7
29. Bxe7 Rc8 30. Rxc8+ Bxc8 31. Bc5 h5 32. Bd4 f6 33. Re4 Rd8 34. c4 Bg4 35.
Be3 Kb7 36. Kb2 Rd7 37. h4 a5 38. Bc5 a4 39. Kc3 g5 {0.72}) 6. Nxc6 {Stockfish
also avoids the Sveshnikov transposition with 6.Ndb5 d6 7.Bf4 e5.} bxc6 7. e5
Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+ 11. Ke2 f5 12. Nf2 Ba6 13. Kf3 Ne7 14. Be3
Bc5 15. Bxc5 Qxc5 16. Qd6 Qb6 17. Be2 Rd8 18. b4 g5 ({Relevant:} 18... Nc8 19.
Qc5 d5 20. exd6 Nxd6 21. Qe5 c5 22. Qxc5 Rc8 23. Qxb6 axb6 24. Rhc1 Bxc4 25.
Bxc4 Nxc4 26. Nd3 Ke7 27. a4 Rhd8 28. Ke2 Rd4 29. a5 bxa5 30. bxa5 Rcd8 31. Rc3
Re4+ 32. Kf2 Red4 33. Ne5 Nxe5 34. fxe5 R8d7 35. a6 Ra7 36. Ra5 Rd2+ 37. Kf3
Rb2 38. Rc6 g5 39. Rd6 Rc7 40. Ra3 Rcc2 41. Rdd3 Rf2+ 42. Ke3 Rbc2 43. Rdb3
Rcd2 44. Rd3 Rc2 45. Rd1 Ra2 46. Rdd3 Rac2 {1/2-1/2 (46) Firouzja,A (2804)
-Rapport,R (2776) Bucharest 2022}) 19. fxg5 {[#]} c5 $146 ({Predecessor:} 19...
Ng6 20. g3 Qb8 21. Kg2 Nxe5 22. Bh5+ Ng6 23. Qd4 O-O 24. c5 d6 25. Rhe1 e5 26.
Qc3 dxc5 27. bxc5 e4 28. Bxg6 hxg6 29. h4 Qb5 30. Rac1 Rd5 31. Kg1 Kh7 32. Re3
Qa4 33. Nh3 Rfd8 34. Rce1 Rd3 35. Rxd3 Rxd3 36. Qf6 Qd4+ 37. Qxd4 Rxd4 38. Nf4
Bb5 39. h5 gxh5 40. g6+ Kh6 41. Kf2 Rd2+ 42. Ke3 Rxa2 43. Rh1 Kg7 44. Rxh5 Ra3+
45. Kd4 Kf6 46. Rh8 Ra4+ 47. Ke3 Ra3+ 48. Kd4 Ra4+ 49. Ke3 {Baranowski,T (2375)
-Leupold,V (2386) ICCF email 2018 1/2-1/2}) 20. b5 Bb7+ 21. Ke3 Bxg2 22. Bh5+
Ng6 23. Rhb1 Qxd6 24. exd6 f4+ 25. Kd2 O-O 26. Bxg6 hxg6 27. Rg1 f3 28. Rge1
Rf5 29. a4 Kf7 30. Re4 Rxg5 31. h4 Rf5 32. a5 g5 33. hxg5 Rxg5 34. Rf4+ Rf5 35.
Rxf5+ exf5 36. Re1 Kf6 37. Nd3 Rg8 38. Ke3 {0.67}) 3. d4 cxd4 4. Nxd4 Nf6 5.
Nc3 a6 (5... g6 {[d=69, 529912Mn]} 6. f3 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. O-O-O d5
10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 Bxd4 13. Qxd4 Qb6 14. Na4 Qc7 15. Bc4 ({
Relevant:} 15. c4 Nf4 16. g3 e5 17. Qd6 Qxd6 18. Rxd6 Ne6 19. Bd3 Rd8 20. Rxd8+
Nxd8 21. Re1 f6 22. f4 Nf7 23. Be4 Bd7 24. Nc5 Be8 25. Bg2 Rd8 26. Kc2 Rd6 27.
Bh3 Kg7 28. Kc3 h5 29. Nd3 g5 30. fxe5 fxe5 31. Nxe5 g4 32. Nxf7 Bxf7 33. Bg2
Bg6 34. Re2 a5 35. Rd2 Rxd2 36. Kxd2 c5 37. Kc3 Kf6 38. a3 Ke5 39. b4 axb4+ 40.
axb4 cxb4+ 41. Kxb4 Kd4 42. c5 Be8 43. c6 Bxc6 44. Bxc6 Ke3 {Nakamura,H (2736)
-Jones,G (2670) chess24.com INT 2021 1-0}) 15... Rd8 16. Nc5 Bf5 17. Bb3 Nb6
18. Qc3 h5 19. g3 e6 {[#]} 20. a3 $146 ({Predecessor:} 20. Rhe1 Nd5 21. Qc4 Nb6
22. Qc3 Nd5 23. Qe5 Qe7 24. Ne4 Bxe4 25. fxe4 Nf6 26. Qg5 Kg7 27. Rf1 Rxd1+ 28.
Rxd1 Qc7 29. e5 Ng4 30. Re1 Qa5 31. c3 Rb8 32. h3 Rxb3 33. axb3 Qa1+ 34. Kd2
Qxb2+ 35. Kd3 Qf2 36. hxg4 Qxe1 37. gxh5 Qd1+ 38. Kc4 Qd5+ 39. Kb4 c5+ 40. Ka3
Qd1 41. h6+ Kh7 42. Kb2 Qe2+ 43. Kc1 Qh2 44. Qf6 Qxh6+ 45. Kb1 Qh1+ 46. Kb2
Qg2+ 47. Ka3 Qxg3 48. Qxf7+ Kh6 {1/2-1/2 (48) Muzychuk,A (2587)-Cmilyte,V
(2528) Eilat 2012}) 20... Nd5 21. Qd4 Qe7 22. Rhe1 Rab8 23. h4 Nf6 24. Qe3
Rxd1+ 25. Rxd1 Rb5 26. Nd3 Qc7 27. Bc4 Nd5 28. Qe5 Rb7 29. Qxc7 Rxc7 30. Nf2 e5
31. g4 hxg4 32. fxg4 Bxc2 33. Kxc2 Ne3+ 34. Kc3 Nxd1+ 35. Nxd1 Rd7 36. Nf2 Rd4
37. Nd3 Re4 38. a4 Kg7 39. g5 f6 40. Nc5 Rxh4 41. Ne6+ Kf7 42. Nd8+ Ke7 43.
Nxc6+ Kd6 44. Nxa7 {0.65}) 6. f3 (6. Bd3 {At the rather substantial [d=67,
1407518Mn] Stockfish returns to the 6.Bd3 line it had favoured earlier. This
line - always thought to be completely amateurish in the pre-computer age! -
is also Koivisto's choice!} e5 7. Nde2 Be6 8. O-O Be7 ({Relevant:} 8... Nc6 9.
Be3 Be7 10. Ng3 Rc8 11. a3 Ng4 12. Bd2 Bg5 13. h3 Bxd2 14. Qxd2 Nf6 15. Rfd1
O-O 16. Nf1 Nd4 17. Ne2 Nxe2+ 18. Qxe2 Qb6 19. c3 d5 20. Rd2 Qc6 21. exd5 Bxd5
22. Ne3 Be6 23. Bf5 Rcd8 24. Bxe6 Qxe6 25. Rad1 Rxd2 26. Qxd2 Qb3 27. Qe2 h6
28. Nf5 Re8 29. Rd2 Re6 30. Qf3 Qb6 31. Qg3 g6 32. Nxh6+ Kf8 33. Qd3 e4 34. Qd4
Qxd4 35. Rxd4 Kg7 36. Ng4 Nxg4 37. hxg4 Kf6 38. Rd7 {Adams,M (2716)-Xiong,J
(2700) Chess.com INT 2021 1-0}) 9. a4 Nbd7 {[#]} 10. Re1 $146 ({Predecessor:}
10. h3 d5 11. exd5 Nxd5 12. Nxd5 Bxd5 13. Nc3 Bc6 14. Qg4 Nf6 15. Qf5 Qc7 16.
Re1 Nd7 17. Bc4 O-O 18. Nd5 Bxd5 19. Bxd5 Bf6 20. Be4 g6 21. Qg4 Bg7 22. Bd5
Nf6 23. Qc4 Nxd5 24. Qxd5 Rad8 25. Qb3 Rd6 26. Be3 h6 27. Rad1 Rfd8 28. c3 Kh7
29. Rxd6 Rxd6 30. Rd1 Rxd1+ 31. Qxd1 f5 32. Qd5 f4 33. Bc5 Qc6 34. Qxc6 bxc6
35. b4 e4 36. c4 Be5 37. b5 cxb5 38. cxb5 axb5 39. axb5 Bb8 {Tomic,D (1567)
-Lazarevic,Z (1867) Djenovici 2018 0-1 (73)}) 10... Nc5 11. Ng3 Nxd3 12. Qxd3
h6 13. Nf1 O-O 14. Ne3 Qc7 15. Rd1 Qc5 16. a5 Rfc8 17. h3 Bd8 18. Qxd6 Bxa5 19.
Ncd5 Qxd6 20. Nxf6+ gxf6 21. Rxd6 Bc7 22. Rd3 Kh7 23. c3 b5 24. Ng4 Bd8 25.
Nxh6 Rc4 26. f3 b4 27. Nf5 a5 28. cxb4 Rxb4 29. Kh2 Bb6 30. Raa3 a4 31. Rac3
Bxf5 32. exf5 Bd4 33. Rc2 Kg7 34. Ra3 Rb5 {0.28}) 6... e5 7. Nb3 Be6 8. Be3 h5
9. Qd2 (9. Be2 {[d=60/79, 344881Mn] is Stockfish's choice at a lower (though
not low!) depth} Nbd7 10. f4 Qc7 11. h3 b5 12. O-O Be7 13. a3 O-O 14. Kh1 Bc4 {
[#]} 15. Bd3 $146 ({Predecessor:} 15. fxe5 dxe5 16. Bg5 Bxe2 17. Qxe2 Qc4 18.
Qe1 Rfc8 19. Nd2 Qe6 20. Nf3 Rc4 21. Rd1 Re8 22. Rd3 b4 23. axb4 Bxb4 24. Qd1
a5 25. Bxf6 Nxf6 26. Ng5 Qe7 27. Ne2 Rc6 28. Ng3 g6 29. c3 Bc5 30. Qa4 Rec8 31.
Rdf3 Ng4 32. Nxf7 Ne3 33. Nh6+ Kh8 34. Re1 Ng4 35. Rf7 Qh4 36. Nxg4 hxg4 37.
Rd1 gxh3 38. Rdd7 Rd6 39. Kh2 Rxd7 40. Qxd7 hxg2+ 41. Kxg2 Rf8 42. Rxf8+ Bxf8
43. Qe8 Qf6 {1/2-1/2 (43) Manopo,J (2214)-Palladino,M (2304) ICCF email 2021})
15... d5 16. Bxc4 dxc4 17. Nd2 exf4 18. Bxf4 Bd6 19. Bxd6 Qxd6 20. Nf3 Qxd1 21.
Raxd1 Nc5 22. Rfe1 Rfd8 23. e5 Nh7 24. Kg1 Nf8 25. Kf2 Rab8 26. Rxd8 Rxd8 27.
Ke3 Nce6 28. h4 Ng6 29. Rd1 Rxd1 30. Nxd1 {0.43}) 9... Nbd7 10. Nd5 Bxd5 11.
exd5 g6 12. O-O-O Nb6 13. Kb1 Nbxd5 14. Bg5 Be7 15. Bd3 Qc7 16. Rhe1 Nb6 17. a4
O-O-O 18. a5 {[#]} Nbd5 $146 ({Predecessor:} 18... Nbd7 19. Be3 Kb8 20. Bg1 d5
21. c3 Rhe8 22. Bc2 Qc4 23. h3 h4 24. Qf2 Kc8 25. Bh2 Qc7 26. Rd4 Rh8 27. Rc1
Nb8 28. c4 Nc6 29. cxd5 Rxd5 30. Rxh4 Rxh4 31. Qxh4 Qd7 32. Qc4 Kd8 33. Bg1 Ke8
34. h4 Nb4 35. Nc5 Bxc5 36. Bxc5 Nxc2 37. Rxc2 Rd1+ 38. Rc1 Rxc1+ 39. Kxc1 Qc6
40. b3 e4 41. Qd4 exf3 42. gxf3 Qe6 43. Kd2 Nd5 44. b4 Kd7 45. Kd3 Kc6 46. Qc4
Qf5+ 47. Qe4 Qxe4+ 48. fxe4 {Fleetwood,D (2570)-Stephan,J (2528) ICCF email
2020 1/2-1/2 (63)}) 19. c4 Nf4 20. Bxf4 exf4 21. Qxf4 Rhe8 22. Qd4 Kb8 23. g3
d5 24. c5 Nd7 25. Qxd5 Nxc5 26. Qxf7 Nxd3 27. Rxd3 Rxd3 28. Qxe8+ Bd8 29. Re3
Rxe3 30. Qxe3 Qd7 31. Qc3 h4 32. gxh4 Bxh4 33. Qe5+ Ka7 34. Qe3+ Ka8 35. Qe4
Bf6 36. Qxg6 Qd1+ 37. Ka2 {0.49}) 2. Nf3 Nc6 (2... Nf6 {[d=64, 239074Mn]} 3. d4
Nxe4 4. Nxe5 d6 5. Nf3 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bf5 10. Qb3 Qd7
11. Nc3 Nxc3 12. Bxf5 Qxf5 13. bxc3 b6 14. cxd5 cxd5 15. Qb5 {Just like
Koivisto, Stockfish likes the line essayed by Magnus Carlsen against Nepo in
Magnus' last ever(?) World Championship! Maybe not surprising that Nepo was
well-prepared against Stockfish's main line!} Qd7 16. Rb1 (16. a4 Qxb5 17. axb5
a5 18. Nh4 g6 19. g4 Nd7 20. Ng2 Rfc8 21. Bf4 Bxf4 22. Nxf4 Rxc3 23. Nxd5 Rd3
24. Re7 Nf8 25. Nf6+ Kg7 26. Ne8+ Kg8 27. d5 a4 28. Nf6+ Kg7 29. g5 a3 30. Ne8+
Kg8 31. Nf6+ Kg7 32. Ne8+ Kg8 33. Nf6+ {1/2-1/2 (33) Carlsen,M (2855)
-Nepomniachtchi,I (2782) Dubai 2021}) 16... Rd8 17. g3 Qxb5 18. Rxb5 Na6 19.
Bd2 Nc7 20. Rb2 b5 21. Reb1 {[#]} Rab8 $146 ({Predecessor:} 21... Kf8 22. h4
Rab8 23. h5 Rb6 24. Kg2 Re8 25. Ra1 g6 26. Bg5 Rc6 27. hxg6 hxg6 28. a4 a6 29.
Bh6+ Ke7 30. Bd2 Kd7 31. Nh2 Re4 32. Nf3 Re2 33. Kf1 Re4 34. Ng5 Re7 35. Kg2
Rc4 36. axb5 {1/2-1/2 (36) Rallabandi,P (2501)-Coleman,P (2610) ICCF email 2021
}) 22. a4 Rb6 23. axb5 Rdb8 24. Ra2 a6 25. Kf1 Rxb5 26. Rxb5 Rxb5 27. Nh4 g6
28. Ke2 Kf8 29. Kd3 Ke7 30. Ng2 Kd7 31. Kc2 Kc6 32. Ne3 Rb7 33. c4 dxc4 34.
Nxc4 Kd5 {0.46}) 3. Bb5 (3. Bc4 {[d=73, 1036474Mn]} Nf6 (3... Bc5 4. c3 Nf6 5.
d4 exd4 6. e5 {is also analysed in depth in Gawain Jones' book so it seemed
like a fun line to check!} d5 7. Bb5 Ne4 8. cxd4 {and now Stockfish likes the
unusual} Bb4+ 9. Bd2 Be7 {which gets a brief mention in Gawain's book.[d=66,
107216Mn]} ({Relevant:} 9... Nxd2 10. Nbxd2 O-O 11. O-O Ne7 12. a3 Ba5 13. Nb3
Bb6 14. h3 Bf5 15. Bd3 Qd7 16. Rc1 c6 17. Nh4 Be4 18. Re1 Bxd3 19. Qxd3 Rae8
20. Re3 Ng6 21. Nxg6 fxg6 22. Nc5 Bxc5 23. Rxc5 g5 24. Rc2 Re7 25. b4 a6 26.
Rce2 Qe6 27. a4 Ref7 28. b5 axb5 29. axb5 Ra8 30. bxc6 bxc6 31. Rf3 Rxf3 32.
Qxf3 Ra1+ 33. Kh2 Qf7 34. Kg3 Rd1 35. Rc2 Rd3 {0-1 (35) Can,E (2600)-Wei,Y
(2732) Chess.com INT 2020}) 10. Be3 {[#]} (10. Nc3 {was Gawain's main line})
10... a6 $146 ({Predecessor:} 10... Bd7 11. Qb3 Nb4 12. Be2 a5 13. O-O O-O 14.
a3 a4 15. Qd1 Nc6 16. Nc3 Nxc3 17. bxc3 Na5 18. Nd2 b5 19. Bd3 c6 20. Qh5 g6
21. Qh6 f5 22. Nf3 Rf7 23. Ng5 Rg7 24. e6 Be8 25. Bf4 Bd6 26. Bxd6 Qxd6 27.
Rfe1 Raa7 28. e7 {1/2-1/2 (28) Cawdery,D (2418)-Fernandes,A (2353) Port
Elizabeth 2020}) 11. Be2 f5 12. exf6 Nxf6 13. Nc3 Bd6 14. Qb3 Na5 15. Qc2 O-O
16. O-O Nc6 17. Bg5 Be6 18. Rae1 Qd7 19. Bh4 Kh8 20. Qd1 Rab8 21. Bg3 Ne4 22.
Nxe4 dxe4 23. Ne5 Qe7 24. a3 Nxe5 25. dxe5 Bc5 26. Qc2 e3 27. Bf3 exf2+ 28.
Bxf2 Bxf2+ 29. Rxf2 c6 30. Rd2 Rbd8 31. Red1 Qg5 32. Rxd8 Rxd8 33. Rxd8+ Qxd8
34. Qf2 Qg5 35. Qd4 h6 36. Kf1 Kh7 37. Kf2 Qc1 {New game}) 4. d3 (4. Ng5 {
Never a popular choice with the engines! [d=78, 312201Mn]} d5 5. exd5 Na5 6.
Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 9. Nf3 Bd6 10. Nc3 Nf4 11. O-O Nxd3 12. cxd3
O-O 13. Re1 ({Relevant:} 13. Ne4 Re8 14. Qa4 Bf8 15. b4 Nb7 16. Qxc6 Qd7 17.
Qc3 a5 18. Nxe5 Qd5 19. Nc6 Ra6 20. b5 Qxb5 21. Nd4 Qh5 22. Ba3 Rh6 23. Nf3
Bxa3 24. Qxa3 Bg4 25. Rfe1 Rhe6 26. Nd4 Re5 27. f4 {1-0 (27) Van Foreest,J
(2714)-Ding,L (2799) chess24.com INT 2022}) 13... c5 14. b3 f6 15. Ba3 Nb7 16.
Ne4 Be7 17. b4 Qxd3 18. Re3 Qd5 19. bxc5 Nxc5 20. d4 Nxe4 21. Bxe7 Re8 22. dxe5
Qxd1+ 23. Rxd1 Rxe7 24. Rxe4 Bb7 25. Re3 Bxf3 26. gxf3 {[#]} Rae8 $146 ({
Predecessor:} 26... fxe5) 27. exf6 Rxe3 28. fxe3 Rxe3 29. Rd8+ Kf7 30. fxg7
Kxg7 31. Rd7+ Kg6 32. Kf2 Ra3 33. Rd2 h6 34. Kg3 h5 35. Rc2 Ra4 36. h4 Kf6 37.
Rh2 Kf7 38. Rg2 Kg6 {0.00}) (4. d4 {[d=75, 137122Mn] interested me after
perusing Gawain Jones' excellent analysis of this line in his "Coffeehouse
Repertoire Vol.2"} exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. O-O Bc5
10. f3 Ng5 11. f4 Ne4 12. Be3 Qb8 {[#]} ({Relevant:} 12... Bb6 13. Nd2 c5 14.
N4b3 Nxd2 15. Qxd2 d4 16. Bf2 Bc6 17. f5 Qd5 18. Bh4 c4 19. Qg5 d3+ 20. Kh1 O-O
21. f6 g6 22. Rg1 Kh8 23. Nd2 Bxg1 24. Rxg1 dxc2 25. Qh6 Rg8 26. Nf3 Qxf3 27.
gxf3 Bxf3+ 28. Rg2 Rad8 29. Kg1 Rd1+ 30. Kf2 c1=Q 31. Qxc1 Rxc1 32. Kxf3 Re8
33. Rd2 h6 34. Bg3 c3 35. bxc3 Rxc3+ 36. Ke4 Rc4+ 37. Kf3 Kg8 38. Rd7 g5 39.
Ke3 a5 40. Kd3 Rc6 41. Kd4 a4 42. Kd5 {Jones,G (2671)-Neiksans,A (2574) Chess.
com INT 2022 0-1 (84)}) 13. Qd3 $146 ({Predecessor:} 13. b3 O-O 14. Qd3 f6 15.
Nd2 Nxd2 16. Qxd2 Qe8 17. Nf3 Bxe3+ 18. Qxe3 Bf5 19. Qc5 Be4 20. Rae1 fxe5 21.
Nxe5 Rf6 22. h3 Qe6 23. Ng4 Rf5 24. Ne5 Rf6 25. c4 a5 26. Ng4 Rf5 27. cxd5 Qxd5
28. Qc3 Rff8 29. Rd1 Qf5 30. Ne3 Qg6 31. Rd7 Kh8 32. f5 Qf6 33. Qxf6 Rxf6 34.
Rxc7 a4 35. bxa4 h6 36. Rf4 Rxa4 37. Rg4 g6 38. fxg6 Rxg6 39. Rxg6 Bxg6 40.
Rxc6 Kg7 41. Rc7+ Kf8 42. Ng4 h5 {Adhiban,B (2660)-Ganguly,S (2625) Tornelo
INT 2021 1-0 (78)}) (13. Nc3 {is Gawain's suggestion which looks very
interesting.}) 13... Qxb2 14. Nd2 Nxd2 15. Qxd2 O-O 16. a3 Qb7 17. Nb3 Bxe3+
18. Qxe3 Qb6 19. Nc5 Bf5 20. Rab1 Qa5 21. Rb4 Rfb8 22. Ra4 Qb5 23. Rb4 Qa5 {
with a draw by repetition according to Stockfish}) 4... Bc5 5. O-O O-O 6. Nc3
h6 7. h3 a6 8. a4 d6 9. Be3 Bxe3 ({Relevant:} 9... Re8 10. Nd5 Be6 11. Bxc5
dxc5 12. Ne3 Qd7 13. a5 Rad8 14. Nd2 Bxc4 15. Ndxc4 Qe6 16. Qe1 Nd4 17. Kh2 Nh5
18. f3 Nf4 19. Qf2 g6 20. Rfd1 h5 21. h4 Qf6 22. c3 Nc6 23. g3 Nxd3 24. Qf1 Nf4
25. gxf4 Qxf4+ 26. Kh3 Ne7 27. Qf2 g5 28. Qg3 Ng6 29. hxg5 c6 30. Nf5 h4 31.
Qxf4 Nxf4+ 32. Kxh4 {1-0 (32) Topalov,V (2730)-Tari,A (2654) Stavanger 2022})
10. fxe3 Be6 11. b3 Na5 {[#]} 12. Bxe6 $146 ({Predecessor:} 12. Qe1 Nxc4 13.
bxc4 a5 14. g4 Nd7 15. Qg3 g6 16. g5 h5 17. Rf2 c6 18. Rb1 Ra6 19. Nh4 Rb6 20.
Rbf1 Rb4 21. Nf5 Nc5 22. Nh6+ Kg7 23. Nd5 cxd5 24. cxd5 Bxd5 25. exd5 f5 26.
Nxf5+ gxf5 27. Rxf5 Rxf5 28. Rxf5 Nd7 29. Qf2 Qe8 30. e4 Rxa4 31. h4 Nf8 32.
Rf6 Qe7 33. Qf3 Ra1+ 34. Kg2 Ng6 35. Qxh5 Nf4+ 36. Rxf4 exf4 37. Qh6+ Kg8 38.
Qg6+ Kh8 39. Qh6+ Kg8 40. Qg6+ Kf8 41. Qh6+ Kg8 {Aronian,L (2782)-Radjabov,T
(2763) chess24.com INT 2021 1/2-1/2}) 12... fxe6 13. d4 Nc6 14. Qd3 Rf7 15.
Rae1 Qe7 16. Ne2 Nh5 17. Qc4 Raf8 18. b4 exd4 19. exd4 e5 20. b5 axb5 21. axb5
Nxd4 22. Nexd4 exd4 23. e5 Kh8 24. Qxd4 dxe5 25. Nxe5 Rxf1+ 26. Rxf1 Rxf1+ 27.
Kxf1 Kg8 28. Qd5+ Kh7 29. Qe4+ Kg8 {0.08}) 3... Nf6 (3... a6 {Let's just
forget about the Berlin for a few glorious minutes! [d=63/91, 213910Mn]} 4. Ba4
Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 Bb7 9. d3 d5 10. exd5 Nxd5 11. Nxe5 (
{Relevant:} 11. a4 Nd4 12. Nbd2 Nxb3 13. Nxb3 Nb4 14. Nxe5 Qd5 15. f3 Bd6 16.
d4 Rae8 17. axb5 axb5 18. Bd2 Nc6 19. Bf4 Kh8 20. Bh2 Nxe5 21. dxe5 Bxe5 22.
Bxe5 Rxe5 23. Rxe5 Qxe5 24. Qd4 Qg5 25. Qc5 Qxc5+ 26. Nxc5 Bd5 27. Ra7 c6 28.
Nd3 g6 29. Rc7 Ra8 30. Nb4 Kg7 31. Nxc6 Bxc6 32. Rxc6 Rd8 33. g4 Rd2 34. h4 h5
35. gxh5 gxh5 36. b4 Rd4 37. c3 Rxh4 38. Kg2 Rf4 39. Kg3 Rf5 40. f4 h4+ {
Nakamura,H (2736)-Aronian,L (2772) Berlin 2022 1-0 (61)}) 11... Nd4 12. Nc3 Nb4
13. Ne4 Nxb3 14. axb3 Qd5 15. Bf4 c5 16. Nf3 {[#]} h6 $146 ({Predecessor:}
16... Rae8 17. Bd2 f5 18. Ng3 Nc6 19. c4 Qd7 20. Nh5 b4 21. Be3 Bd6 22. Qd2 Ne7
23. d4 Bxf3 24. gxf3 f4 25. Bxf4 Bxf4 26. Nxf4 Nf5 27. Rxe8 Rxe8 28. Re1 Nxd4
29. Rxe8+ Qxe8 30. Kf1 Qd7 31. Kg2 {1/2-1/2 (31) Jones,I (2388)-Herman,T (2330)
ICCF email 2020}) 17. Nc3 Qd7 18. Ne5 Qf5 19. Qg4 Qxg4 20. Nxg4 Rfe8 21. Rac1
h5 22. Nh2 Rad8 23. Re5 h4 24. Re2 f6 25. Rce1 Kf7 26. Ne4 f5 27. Ng5+ Bxg5 28.
Bxg5 Nxc2 29. Re7+ Rxe7 30. Rxe7+ Kg6 31. Rxb7 Kxg5 32. Nf3+ Kf6 33. Rb6+ Kf7
34. Rxa6 Nd4 35. Ne5+ Kg8 36. Ng6 Kf7 37. f4 {0.34}) 4. O-O Nxe4 5. Re1 {
Once again, this line of the Berlin comes out as best play for both sides from
the starting position!} (5. d4 {At lower depth [d=55/59, 70745Mn] Stockfish is
willing to try this endgame but eventually rejects it!} Nd6 6. Bxc6 dxc6 7.
dxe5 Nf5 8. Qxd8+ Kxd8 9. h3 Be7 10. Nc3 Nh4 11. Nxh4 Bxh4 12. Rd1+ Ke8 13. g4
h5 14. f3 f6 15. exf6 gxf6 16. Bf4 hxg4 17. hxg4 f5 18. g5 Rh5 19. Ne2 Be6 {[#]
} 20. Ng3 $146 ({Relevant:} 20. Kg2 Kf7 21. Ng3 Bxg3 22. Kxg3 Rah8 23. Kf2 Rh4
24. Bxc7 f4 25. Rg1 Kg6 26. Rad1 Rh2+ 27. Rg2 Rxg2+ 28. Kxg2 Kxg5 29. Rd4 Bxa2
30. Bxf4+ Kf5 31. Bg3 Bd5 32. Rf4+ Kg6 33. Rg4+ Kf7 34. Rh4 Rxh4 35. Bxh4 b5
36. b4 Ke6 37. Bf2 a6 38. Bd4 Ba2 39. Kf2 Bd5 40. Kg2 Bc4 41. Kf2 Bd5 42. Kg2 {
1/2-1/2 (42) Shankland,S (2714)-So,W (2778) Saint Louis 2021}) 20... Bxg3 21.
Bxg3 Rxg5 22. Kf2 Kf7 23. Bf4 Rh5 24. b3 b5 25. a4 a5 26. Bxc7 Rh3 27. Kg2 Rh5
28. axb5 cxb5 29. Rxa5 Rxa5 30. Bxa5 f4 31. Rc1 Rc5 32. Bb4 {0.24}) 5... Nd6 6.
Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Re8 11. Bf4 Rxe1 12. Qxe1
Ne8 13. c3 d5 {The same line as Komodo Dragon and Koivisto!} 14. Nd2 ({
Relevant:} 14. Bd3 g6 15. Nd2 Ng7 16. Nf3 {was Koivisto's main line!} (16. Qe2
c6 17. Re1 Bf5 18. Bxf5 Nxf5 19. Nf3 Ng7 20. Be5 Bxe5 21. Nxe5 Qd6 22. Qf3 f6
23. Ng4 Re8 24. Re5 Kf7 25. Nh6+ Kf8 26. Ng4 Kf7 27. Nh6+ Kf8 28. Ng4 Kf7 {
1/2-1/2 (28) Wang,H (2744)-So,W (2776) Stavanger 2022}) 16... Bf5 17. Bxf5 Nxf5
18. Qd2 a5 19. Re1 Nd6 20. g3 Ne4 21. Qc2 a4 22. Nd2 Nd6 23. a3 h5 24. h4 c6
25. Bxd6 Qxd6 26. Nf3 b5 27. Qd3 Qd7 28. Ne5 Bxe5 29. Rxe5 {0.36: Koivisto
Opening Repertoire}) 14... Nd6 15. Qe2 Bf5 16. Re1 c6 17. Nb3 {[#]} (17. Qf3 {
was Komodo Dragon's line!} Ne4 18. Nxe4 Bxe4 19. Qg3 Bg6 20. Bc7 Qd7 21. Qd6
Qxd6 22. Bxd6 Bf5 23. f3 h5 24. Kf2 g6 25. g3 a5 26. Bf4 g5 27. Bd6 Kg7 28. h3
h4 29. g4 Be6 {0.29: Komodo Dragon Repertoire}) 17... b6 $146 ({Predecessor:}
17... h6 18. Qf3 Bg6 19. Nc5 Ne4 20. Nd3 a5 21. Qe3 Bf5 {1/2-1/2 (21) Ress,J
(2303)-Almeida,R (2223) LSS email 2021}) 18. Nd2 Bg5 19. Qf3 Bxf4 20. Qxf4 Qd7
21. h4 h6 22. Re3 Rd8 23. Be2 Be6 24. Bd3 Bf5 25. Bf1 Be6 26. Nf3 f6 27. Nh2
Bf5 28. Be2 Nc4 29. Bxc4 dxc4 30. Re1 Be6 31. Nf1 {0.29} *
[Event "#3 - 1.e4 other"]
[Site "?"]
[Date "2022.07.19"]
[Round "?"]
[White "Stockfish Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "B00"]
[Annotator "gmmat"]
[PlyCount "69"]
[EventDate "2022.07.19"]
1. e4 Nf6 {[d=66/72, 366413Mn]} (1... d5 {[d=62, 286304Mn]} 2. exd5 Nf6 {
Just like Komodo Dragon, Stockfish prefers 2...Nf6 to 2...Qxd5!} (2... Qxd5 {
[d=64/77, 188295Mn]} 3. Nc3 Qa5 {Stockfish's preference to 3...Qd6} (3... Qd6 {
[d=59/77, 216691Mn]} 4. Nf3 c6 5. d4 Nf6 6. Bd3 Bg4 7. Be3 Qc7 8. h3 Bh5 9. Qe2
Nbd7 10. O-O-O e6 11. Kb1 {[#]} Bg6 $146 ({Predecessor:} 11... Bb4 12. Bd2 Bxc3
13. Bxc3 Nd5 14. Bd2 b5 15. g4 Bg6 16. Bxg6 hxg6 17. Ng5 Rf8 18. Rhe1 O-O-O 19.
c4 bxc4 20. Qxc4 Kb7 21. Rc1 Rc8 22. Rg1 N7f6 23. Rg3 Nb6 24. Rb3 Rfd8 25. Be3
Rd5 26. f3 Qd7 27. Ne4 Nxe4 28. fxe4 Rb5 29. Qd3 f5 30. Rxb5 cxb5 31. Rd1 Nc4
32. Bf4 e5 33. dxe5 Qxd3+ 34. Rxd3 fxe4 35. Rd7+ Ka6 36. Rxg7 e3 37. Rxg6+ Ka5
38. a3 b4 39. axb4+ Kxb4 40. Rg7 e2 41. Bg3 {Todorovic,G (2450)-Sedlak,N (2571)
Belgrade 2009 0-1}) 12. Bxg6 hxg6 13. h4 Be7 14. Ng5 b5 15. Qf3 b4 16. Nce4 Qb7
17. Ng3 Rf8 18. N3e4 Qb5 19. Bf4 Nxe4 20. Nxe4 Rh8 21. c4 Qxc4 22. Rc1 Qd5 23.
Rxc6 Nf6 24. Nxf6+ Bxf6 25. Qxd5 exd5 26. Re1+ Kf8 27. g3 Bxd4 28. Re2 Kg8 29.
Rd2 Bf6 30. Rxd5 Rh5 31. Rd7 Rb5 32. Rcc7 a5 33. Bg5 Bxg5 34. hxg5 Rf5 35. f4
Re8 36. Rb7 Re1+ 37. Kc2 {1.11}) 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. Bc4 e6 8. g4
Bg6 9. h4 Nbd7 10. Nxd7 Nxd7 11. h5 Be4 12. O-O Bd5 13. Nxd5 cxd5 14. Bd3 Bd6 {
A popular choice for engines against the Scandinavian. We have quite a few
games between top engines in this line.} 15. a4 ({Relevant:} 15. Qf3 O-O-O 16.
Be3 g6 17. h6 Rhf8 18. a3 f5 19. c4 e5 20. b4 Qc7 21. c5 Be7 22. Bb5 e4 23. Qh3
f4 24. Bd2 Bg5 25. c6 Nf6 26. cxb7+ Qxb7 27. Rac1+ Kb8 28. Bc6 Qe7 29. Rc5 e3
30. fxe3 fxe3 31. Be1 Ne4 32. Qh2+ Kc8 33. Bd7+ Kxd7 34. Rc7+ Ke6 35. Qe5# {
1-0 (35) Firouzja,A (2759)-Carlsen,M (2847) chess24.com INT 2021}) (15. f4 g6
16. h6 Nf6 17. Qe2 O-O 18. c3 Rae8 19. a4 Qc7 20. a5 b6 21. axb6 axb6 22. Kg2
Rb8 23. Ra6 Qb7 24. Be3 Rfe8 25. Re1 Rf8 26. Rf1 Rfe8 27. Rfa1 Ra8 28. Rxa8
Rxa8 29. Re1 Bf8 30. f5 exf5 31. gxf5 Re8 32. Qf3 Ne4 33. fxg6 fxg6 34. Rf1 Nd6
35. b3 Qf7 36. c4 Qxf3+ 37. Kxf3 Nf7 38. Rh1 g5 39. cxd5 Bxh6 40. Bf2 Rd8 41.
Be4 Bf8 42. Bxh7+ Kg7 43. Bd3 Rd6 44. Rh7+ Kg8 45. Ke3 Rf6 46. Be4 Bd6 47. Be1
Bf4+ 48. Kd3 Nd6 49. Rh5 Kg7 50. Rh7+ Kg8 51. Rh5 Kg7 52. Bg2 Rh6 53. Rxh6 Kxh6
54. Bf3 Kg6 55. Bg4 Kf7 56. Bb4 Ke7 57. Bc3 Kd8 58. Be6 Kc7 59. Bb4 Kd8 60. Be1
Kc7 61. Bf2 Kd8 62. Be1 Kc7 63. Bb4 Kd8 64. Ba3 Kc7 65. Bh3 Kd8 66. Bb2 Kc7 67.
Bg4 Kd8 68. Ba3 Kc7 69. Be6 Kd8 70. Bb2 Kc7 71. Ba3 Kd8 72. Bb2 Kc7 73. Bh3 Kd8
74. Bc3 Kc7 75. Bg4 Kd8 76. Be1 Ke7 77. Bb4 Kd8 78. Bf3 Kc7 79. Kc3 Kc8 80.
Bg4+ Kc7 81. Kd3 Kd8 82. Be2 Kc7 83. Be1 Kc8 84. Bg4+ Kd8 85. Be2 Kc8 86. Bb4
Kc7 87. Bc3 Kd7 88. Bf3 Kc7 89. Be1 Kd7 90. Ke2 Kd8 91. Bc3 Nb5 92. Bb2 Nd6 93.
Kd3 Kd7 94. Ba3 Kc8 95. Bb4 Kd8 96. Be1 Kd7 97. Bf2 Ke7 98. Bg2 Kd7 99. Bh3+
Ke7 100. Be1 Kf7 101. b4 Ke7 102. b5 Nxb5 103. Bb4+ Nd6 104. Be1 Ne8 105. Kc4
Nd6+ 106. Kd3 Ne8 107. Kc4 Kd6 108. Bb4+ Kc7 109. Be7 Nd6+ 110. Kd3 b5 111. Bf6
Nc4 112. Bg4 Kd6 113. Be6 Nb6 114. Ke4 Nc4 115. Kd3 Nb6 116. Ke4 b4 117. Be5+
Ke7 118. Bxf4 gxf4 119. Kxf4 b3 120. Bf5 b2 121. d6+ Kd8 122. d5 Nc4 123. d7
Na3 124. d6 Nc4 125. Bb1 Nd2 126. Ba2 Nc4 127. Bb1 Na3 128. Ba2 Nb5 129. Bb1 {
adjudication 1/2-1/2 (129) Stockfish 190203 (3588)-LCZero v20.2-32930 (3404)
https://tcec-chess.com/#seaso 2019}) (15. Bd2 Qb6 16. c3 Bc7 17. a4 O-O 18. h6
g6 19. f4 Nf6 20. Qe2 Ne4 21. Bxe4 dxe4 22. Be3 Qc6 23. c4 a5 24. Ra3 Bd6 25.
c5 Bc7 26. Qc4 Rfd8 27. Rb3 Rd5 28. Qb5 Ra7 29. Qe2 Kf8 30. Rb5 Ra8 31. Qf2 Ke7
32. b3 Kd7 33. Rc1 Ke7 34. Re1 Rad8 35. Rf1 Ke8 36. Rb1 R8d7 37. Rc1 {
adjudication 1/2-1/2 (37) Stockfish 202009282242_nn-baeb (3564)-LCZero v0.26.
3-rc1_T60.SV.JH.9 (3542) https://tcec-chess.com/#season 2020}) 15... O-O (15...
g6 16. h6 O-O 17. Qf3 a6 18. Bf4 Qc7 19. Bg5 Rae8 20. Rfe1 Be7 21. Bxe7 Rxe7
22. c3 f5 23. g5 Nb8 24. Rad1 Nc6 25. Bf1 Rfe8 26. Re2 Na5 27. Bg2 Nc4 28. Rc1
Na5 29. Qh3 Kf7 30. Ra1 Qf4 31. Qe3 Qxe3 32. Rxe3 Nb3 33. Ra2 b6 34. Re1 Nd2
35. Rd1 Ne4 36. f4 Rc7 37. Bf1 a5 38. Rc1 Nd2 39. Kf2 Ne4+ 40. Ke1 Rec8 41. Ra3
Rd8 42. Rb3 Rc6 43. Ba6 Ke7 44. Rc2 Nd6 45. Ke2 Rg8 46. Ra3 Rc7 47. Ra1 Ne4 48.
Rac1 Ra8 49. Bb5 Rac8 50. Ke3 Kd6 51. c4 dxc4 52. Ba6 Kd5 53. Ke2 Nd6 54. Bxc8
Rxc8 55. b3 Ke4 56. bxc4 Kxf4 57. Rb1 Rc6 58. c5 bxc5 59. dxc5 Ne4 60. Rb7 Kxg5
61. Rxh7 e5 62. Ke1 Nxc5 63. Kf1 e4 64. Ra7 Kxh6 65. Rxa5 Rd6 66. Raxc5 Rd1+
67. Ke2 Ra1 68. R2c4 Ra3 69. a5 Ra1 70. Kd2 Ra3 71. Re5 Ra1 72. Kc2 Ra3 73. Kb2
Rd3 74. a6 Rd2+ 75. Rc2 Rd7 76. Ra5 Ra7 77. Kc3 Kh7 78. Rb2 Kh6 79. Kd4 Kg5 80.
Ke3 Rd7 81. a7 Rd3+ 82. Ke2 Rh3 83. a8=Q Rh2+ 84. Ke3 Rxb2 85. Qxe4 Rb3+ 86.
Qd3 Rxd3+ {adjudication 1-0 (86) Stoofvlees II b1 (3511)-Ethereal 13.
66_NNUE-5DCD (3471) https://tcec-chess.com/#season 2022}) 16. Qf3 a6 17. c3
Rae8 {[#]} 18. Re1 $146 ({Predecessor:} 18. Kg2 Qc7 (18... Qd8 19. Rh1 h6 20.
Bd2 Nf6 21. g5 Nh7 22. gxh6 Ng5 23. h7+ Kh8 24. Qe3 Nxh7 25. Rae1 Qd7 26. Bc2
b5 27. a5 f5 28. Kf1 Qc7 29. Rg1 b4 30. Rg6 Rf6 31. Ra1 bxc3 32. Qxc3 Qb7 33.
Ba4 Rc8 34. Qd3 Bb4 35. Bf4 Nf8 36. Rg3 Rf7 37. Bd1 Rc4 38. Be2 Be7 39. Qd2 Rc6
40. Qd1 Bd6 41. Bxd6 Rxd6 42. Rc1 Rd8 43. Qb3 Qe7 44. Rc6 f4 45. Rgc3 Qh4 46.
Bf3 e5 47. dxe5 Re7 48. Qc2 d4 49. Rd6 Rde8 50. Rxd4 Rxe5 51. Re4 Qh3+ 52. Bg2
Qf5 53. Rxe5 Qxe5 54. Bf3 Qxa5 55. Rc5 Qe1+ 56. Kg2 Nd7 57. Rc8 Nf6 58. Be2 f3+
59. Bxf3 Qe5 60. Rc5 Qe7 61. Rf5 Rb8 62. b3 Ng8 63. Qd3 Nh6 64. Ra5 Ng8 65.
Rxa6 Qg5+ 66. Kf1 Rc8 67. Re6 Nf6 68. Re3 Rc1+ 69. Re1 Rc8 70. b4 Rb8 71. Rb1
Rc8 72. Qg6 Qf4 73. Kg2 Rc3 74. Qg3 Nd5 75. Re1 Qxg3+ 76. Kxg3 Rb3 77. b5 Nf6
78. Re5 Rb4 79. Bc6 Kg8 80. f3 Kh7 81. Kf2 Kg8 82. Ke3 Kf7 83. Kd3 Rb1 84. Kc4
Rc1+ 85. Kb4 Rc2 86. Ka5 Nh7 87. b6 Ra2+ 88. Ba4 Rb2 89. Rb5 Rd2 90. b7 Rd8 91.
Kb6 Ke6 92. Kc7 Rd7+ 93. Kc8 Rxb7 94. Kxb7 Nf8 95. Kc6 Ke7 96. Bb3 Kf6 97. Kd6
g6 98. hxg6 Nxg6 {adjudication 1-0 (98) LCZero 0.29-dev+_AP-Mish-2M (3589)
-rofChade 2.323 (3484) https://tcec-chess.com/#season 2022}) 19. Re1 h6 20. Bd2
Nf6 21. b3 Qb6 22. a5 Qd8 23. g5 Nh7 24. gxh6 Ng5 25. h7+ Kh8 26. Qg4 Nxh7 27.
Bxh7 Kxh7 28. c4 Bc7 29. Rh1 e5 30. Qf5+ Kh8 31. Bg5 f6 32. Qg6 Re7 33. Bd2
dxc4 34. bxc4 exd4 35. h6 Kg8 36. Rag1 Qe8 37. Kf1 Qxg6 38. Rxg6 Rff7 39. Bb4
Re5 40. hxg7 Rxg7 41. Rxf6 Rgg5 42. Rf8+ {1/2-1/2 (42) Burgos Garbin,F (2335)
-Lundberg,C (2297) ICCF email 2017}) 18... Qd8 19. Kg2 h6 20. Bd2 Nf6 21. g5
Nh7 22. gxh6 Ng5 23. h7+ Kh8 24. Qe3 Nxh7 25. Rh1 f5 26. Rae1 Be7 27. Qg3 Bd6
28. Qh3 Ng5 29. Qh4 Be7 30. Qh2 Bd6 31. Bf4 Bxf4 32. Qxf4 Qf6 33. Kf1 Re7 34.
f3 Rfe8 35. Re5 Nf7 36. Re2 Qg5 37. Qxg5 Nxg5 38. Kf2 Kh7 {1.10}) 3. Nf3 Nxd5
4. d4 Bf5 5. Bd3 Bxd3 6. Qxd3 e6 7. O-O Nd7 {has lost popularity (7...Be7).} ({
Relevant:} 7... Nc6 8. c4 Nb6 9. Nc3 Be7 10. Bf4 g5 11. Bg3 g4 12. Ne5 Nxd4 13.
c5 Bxc5 14. Rad1 O-O 15. Ne4 Be7 16. Nxg4 c5 17. b4 Nd5 18. bxc5 Nf5 19. Qf3
Rc8 20. Bd6 Nxd6 21. cxd6 Bh4 22. d7 Rc6 23. Ne5 Rc7 24. Qg4+ Kh8 25. Nd6 {
1-0 (25) Topalov,V (2801)-Kamsky,G (2686) Wijk aan Zee 2006 CBM 111 [Finkel,A]}
) 8. Re1 {[#]} c6 $146 ({Predecessor:} 8... Be7 9. c4 N5f6 10. Qb3 Rb8 11. Nc3
O-O 12. h3 a6 13. a4 h6 14. Be3 c5 15. Bf4 Rc8 16. d5 exd5 17. cxd5 c4 18. Qxb7
Bc5 19. Qxa6 g5 20. Be3 Bb4 21. Bd4 Kh7 22. Ne5 Bxc3 23. Bxc3 Nxd5 24. Nxd7
Qxd7 25. Rad1 Rc6 26. Qb5 Nxc3 27. Rxd7 Nxb5 28. axb5 Rb6 29. Re5 Kg6 30. Rc7
f6 31. Rd5 Re8 32. g4 h5 33. Rxc4 hxg4 34. hxg4 Re2 35. b4 Rb2 36. Rd7 Re2 37.
Rcc7 f5 38. Rg7+ {Korkmaz,N (2053)-Koc,I (2000) Antalya 2019 1-0}) 9. c4 N5f6
10. Nc3 Be7 11. Qe2 O-O 12. d5 cxd5 13. cxd5 e5 14. Nxe5 Re8 15. Nxd7 Qxd7 16.
Be3 Nxd5 17. Rad1 Nxc3 18. Rxd7 Nxe2+ 19. Rxe2 b6 20. Kf1 Bf6 21. b3 Kf8 22.
Bf4 Red8 23. Rb7 g5 24. Be3 Rd1+ 25. Re1 Rxe1+ 26. Kxe1 Kg7 27. Ke2 Kg6 28. Kf3
h5 29. Rd7 h4 30. Ke4 Ba1 31. g4 Re8+ 32. Kf3 Be5 33. h3 Bb8 34. Rb7 f5 35.
gxf5+ Kxf5 {1.11}) (1... d6 {[d=63/69, 332255Mn]} 2. d4 Nf6 3. Nc3 e5 {
Stockfish - just like all the other engines - prefers the Philidor to the Pirc!
} (3... g6 {[d=61/76, 256034Mn]} 4. Be3 Bg7 5. Qd2 c6 6. a4 Nbd7 7. f3 O-O (
7... a6 {This is Stockfish's main line via 1...g6 2.d4 Bg7 3.Nc3} 8. h4 {[#]}
Rb8 $146 ({Predecessor:} 8... b6 9. g4 h6 10. Nge2 c5 11. O-O-O cxd4 12. Bxd4
Bb7 13. Ng3 Qc7 14. Be2 Rh7 15. g5 Nh5 16. Nxh5 Bxd4 17. Qxd4 gxh5 18. Nd5 Bxd5
19. exd5 b5 20. Bd3 Nc5 21. Kb1 Nxd3 22. Qxd3 Rh8 23. Rde1 bxa4 24. Qd4 O-O-O
25. Re3 Qb7 26. Rhe1 Rhe8 27. Qxa4 Qb5 28. Qe4 e6 29. gxh6 f5 30. Qd4 e5 31.
Qa7 Rd7 32. Qa8+ Qb8 33. Rc3+ Rc7 34. Rxc7+ Kxc7 35. Qc6+ Kd8 36. Rg1 Qc7 37.
Qxe8+ Kxe8 38. Rg8+ {Zatko,G (2148)-Huber (2045) ICCF email 2010 1-0}) 9. a5 b5
10. axb6 Nxb6 11. Bh6 Bxh6 12. Qxh6 Nbd7 13. b3 Qb6 14. Nge2 c5 15. Qd2 cxd4
16. Qxd4 e6 17. Qxb6 Rxb6 18. Nd4 Nb8 19. g4 Nc6 20. Nxc6 Rxc6 21. Kd2 Ke7 22.
Nd1 Bb7 23. Ne3 h6 24. Be2 Nd7 25. Bd3 Rhc8 26. g5 hxg5 27. hxg5 Ne5 28. Be2
Nd7 29. b4 Rb6 30. c3 {New game}) 8. Nge2 e5 9. O-O-O {A really weird
combination of a4 and 0-0-0!} Qa5 10. Kb1 Nb6 {[#]} 11. Nc1 $146 ({Predecessor:
} 11. b3 exd4 12. Nxd4 Re8 13. Bf4 Qb4 14. g4 d5 15. g5 Nh5 16. Bc7 Nc4 17.
Bxc4 dxc4 18. Nce2 Qe7 19. Ba5 cxb3 20. cxb3 c5 21. Nb5 Be6 22. Qc2 Qxg5 23.
Bc3 c4 24. b4 Red8 25. Nc7 Rac8 26. Nxe6 fxe6 27. Rxd8+ Rxd8 28. Bxg7 Nxg7 29.
Rd1 Rxd1+ 30. Qxd1 Qe7 31. Qd2 a6 32. a5 h5 33. Kc2 Kh7 34. f4 e5 35. Kc3 Qh4
36. f5 Qxe4 37. fxg6+ Kxg6 38. Qd6+ Kh7 39. Ng3 Qe3+ 40. Kb2 h4 {Zhurikhin,A
(2355)-Chuprikov,D (2313) Voronezh 2014 0-1}) 11... exd4 (11... Nxa4 12. Nxa4
Qxa4 13. dxe5 dxe5 14. Bc5 {followed by b3 trapping the queen is the amazing
idea!}) 12. Bxd4 Be6 13. Be2 Rad8 14. g4 c5 15. Bxf6 Bxf6 16. Nd5 Qxd2 17.
Nxf6+ Kg7 18. Rxd2 Kxf6 19. b3 g5 20. Rhd1 Nc8 21. Kb2 b6 22. Nd3 Ne7 23. h4 h6
24. hxg5+ hxg5 25. e5+ dxe5 26. Nxc5 Rxd2 27. Ne4+ Kg6 28. Rxd2 Nc8 29. Ng3 f5
30. Bd3 Ne7 31. Rh2 Kg7 32. Rh5 e4 33. fxe4 fxg4 34. Rxg5+ Kf6 35. Rh5 Kg7 36.
a5 Rf3 37. axb6 axb6 38. Ne2 Ng6 39. Rb5 Nf4 40. Rxb6 Nxd3+ 41. cxd3 {0.87}) 4.
Nf3 Nbd7 5. a4 Be7 6. Bc4 exd4 7. Nxd4 O-O 8. O-O Ne5 9. Ba2 Nc6 10. Bf4 a6 11.
Re1 {[#]} Nxd4 $146 ({Predecessor:} 11... Nb4 12. Bb3 c5 13. Nde2 Re8 14. Ng3
Be6 15. Nd5 {1/2-1/2 (15) Ruefenacht,M (2524)-Koegler,K (2546) ICCF email 2017}
) 12. Qxd4 Be6 13. Bxe6 fxe6 14. Qc4 Qc8 15. h3 Rf7 16. a5 h6 17. Rad1 Rb8 18.
Rd3 Bf8 19. Bh2 Qe8 20. Kh1 Rc8 21. f3 Nd7 22. Rdd1 Nb8 23. b4 Nc6 24. Ne2 {
0.85}) (1... g6 {[d=61, 374354Mn]: see 1...d6}) (1... Nc6 {[d=60, 98154Mn]} 2.
d4 d5 3. e5 Bf5 {This line has scored surprisingly well at the TCEC for Black!}
4. c3 e6 5. Bd3 (5. Be2 f6 6. f4 g5 7. Bh5+ Kd7 8. fxg5 fxe5 9. Nf3 h6 10. g4
Be4 11. Nbd2 Bxf3 12. Nxf3 e4 13. Nh4 hxg5 14. Ng6 Rh7 15. O-O Bd6 16. Qe2 a6
17. Kg2 Rg7 18. Be3 Nge7 19. Nf8+ Qxf8 20. Rxf8 Rxf8 21. Rf1 Bf4 22. h4 Rh8 23.
hxg5 Bxg5 24. Bxg5 Rxg5 25. Kf2 Nf5 26. Ke1 Nce7 27. Qf2 Rhxh5 28. gxh5 Rxh5
29. Kd1 Rh4 30. a3 Ng6 31. Kc1 e3 32. Qg1 Nf4 33. Kc2 e2 34. Re1 Rg4 35. Qf2 a5
36. b3 b6 37. Qf3 Rh4 38. a4 Kc8 39. Rxe2 Nxe2 40. Qxe2 Re4 41. Qh5 Kb7 42. Qg6
Nd6 43. Kd2 Nf5 44. Qf7 Nd6 45. Qd7 Kb8 46. Qd8+ Kb7 47. Qd7 e5 48. Qe6 exd4
49. Qxd5+ Kb8 50. cxd4 Re8 51. Kc2 Rd8 52. Kd3 Nb7 53. Qb5 Rd6 54. Qe8+ Nd8 55.
Kc4 Ka7 56. b4 axb4 57. d5 Nb7 58. Qe5 Nc5 59. a5 Na6 60. Qd4 Rg6 61. axb6+
Rxb6 62. d6 cxd6 63. Qg7+ Kb8 64. Qf8+ Kb7 65. Qe7+ Kc6 66. Qe4+ Kc7 67. Qe7+
Kc6 68. Qe4+ Kc7 69. Qh7+ Kb8 70. Qg8+ Kb7 71. Qd5+ Ka7 72. Qf7+ Ka8 73. Kb3
Nc5+ 74. Kb2 Kb8 75. Kb1 b3 76. Qe7 Rc6 77. Qd8+ Kb7 78. Kb2 Rb6 79. Kb1 Ka6
80. Qc8+ Kb5 81. Qe8+ Kb4 82. Qe1+ Ka4 83. Qd2 Ka3 84. Qc1+ Ka4 85. Qd1 Kb4 86.
Qc1 Na4 87. Qd2+ Kb5 88. Qd3+ Kc5 89. Qe3+ Kc4 90. Qc1+ Kb5 91. Qd2 Nc5 92.
Qe2+ Kb4 93. Qd1 Ka3 94. Qc1+ Kb4 95. Qd1 Na4 96. Qd4+ Ka3 97. Qa1+ Kb4 98.
Qd4+ Ka5 99. Qd5+ Nc5 100. Qd2+ Kb5 101. Qe2+ Kc6 102. Qe8+ Kb7 103. Qd8 Ka6
104. Qc8+ Kb5 105. Qf5 Rb7 106. Qf1+ Kc6 107. Qf8 d5 108. Qf6+ Kb5 109. Qf1+
Kb4 110. Qe1+ Ka4 111. Qc1 Rb5 112. Qd1 Ne4 113. Kb2 Ka5 114. Qa1+ Kb6 115. Qa3
Nc5 116. Qa8 Kc7 117. Qe8 Rb7 118. Qe7+ Kc6 119. Qe8+ Rd7 120. Kc3 Kb7 121. Qe1
Kc6 122. Qe8 Kc7 123. Qe1 Kd6 124. Qg3+ Kc6 125. Qe5 Rd8 126. Qf6+ Rd6 127. Qf8
Kb5 128. Qf1+ Kb6 129. Qf4 Kc6 130. Qf8 Kb5 131. Qf1+ Kb6 132. Kb4 Rc6 133.
Qb5+ Kc7 134. Qa5+ Kb7 135. Kc3 d4+ 136. Kb2 d3 137. Kc3 Kc8 138. Qb5 Kc7 139.
Kd2 Kd6 140. Kc3 Kc7 141. Kb2 Kd6 142. Qb8+ Rc7 143. Qb6+ Kd7 144. Qh6 Kc8 145.
Qg5 Kb7 146. Qd5+ Kb6 147. Qd8 Kb7 148. Qd6 Rc8 149. Ka3 Rc6 150. Qd5 Kb6 151.
Qd8+ Rc7 152. Qd6+ Kb7 153. Kb2 Rc8 154. Ka3 Rc6 155. Qe5 Ka7 156. Qe7+ Ka6
157. Qf8 Ka7 158. Qe7+ Ka6 159. Qf8 Kb7 160. Qf2 Ka7 161. Kb2 Ka6 162. Qf8 Kb6
163. Qd8+ Ka6 164. Qa8+ Kb6 165. Kc3 Rc7 166. Qb8+ Kc6 167. Qf8 Kb7 168. Qf5
Kb6 169. Qf2 Kb5 170. Qh4 Rc8 171. Qb4+ Kc6 172. Kc4 Kd6 173. Kd4 Ke6 174. Qb6+
Kd7 175. Qb5+ Kd6 176. Qb6+ Kd7 177. Kd5 Rc7 178. Qa5 Kd8 179. Qa8+ Rc8 180.
Qa1 d2 181. Qd4 Rc7 182. Qh8+ Ke7 183. Qg7+ Ke8 184. Qe5+ Kd7 185. Qf5+ Kd8
186. Qf8+ Kd7 187. Qf5+ Ke7 188. Qg5+ Ke8 189. Qg6+ Kd8 190. Qg8+ Kd7 191. Qg4+
Ke8 192. Qg6+ Rf7 193. Qg8+ Ke7 194. Qg5+ Rf6 195. Qg7+ Rf7 196. Qe5+ Kd8 197.
Qb8+ Kd7 198. Qd6+ Ke8 199. Kxc5 {adjudication 1/2-1/2 (199) Stockfish
20200407DC (3851)-LCZero v0.24-sv-t60-3010 (3840) https://tcec-chess.com/
#seaso 2020}) 5... Bxd3 ({Relevant:} 5... Nge7 6. Ne2 h5 7. Bg5 Qd7 8. h4 Bxd3
9. Qxd3 Nf5 10. Nd2 Be7 11. Bxe7 Ncxe7 12. Nf3 O-O-O 13. a4 Ng6 14. g3 f6 15.
b4 Kb8 16. O-O Rhf8 17. Kh2 Qf7 18. Neg1 Nh6 19. Rae1 Ng4+ 20. Kg2 fxe5 21.
dxe5 Qe8 22. Nh3 Rf5 23. Nhg5 N6xe5 24. Nxe5 Nxe5 25. Qd4 Nc6 26. Qd3 Rf6 27.
b5 Na5 28. Qh7 e5 29. Qxg7 Rf5 30. Qh7 Rf8 31. f4 e4 32. f5 Qe5 33. f6 Qxc3 34.
f7 Nc4 35. Ne6 {Aronian,L (2782)-Carlsen,M (2855) chess24.com INT 2021 1-0}) 6.
Qxd3 Qd7 {[#]} 7. Qe2 $146 ({Predecessor:} 7. a4 Nge7 8. a5 a6 9. Nf3 h5 10.
O-O Nf5 11. Bg5 Be7 12. Nbd2 f6 13. Bf4 O-O-O 14. b4 Na7 15. Rfe1 Rde8 16. Nb3
Nb5 17. exf6 gxf6 18. Nc5 Bxc5 19. bxc5 Rhg8 20. Bg3 Rg4 21. Re2 h4 22. Rae1
Re4 23. Nxh4 Nxh4 24. Rxe4 dxe4 25. Rxe4 Nf5 26. h4 e5 27. d5 Nxg3 28. fxg3 f5
29. Re3 e4 30. Qd2 Na3 31. c6 bxc6 32. Qe2 Qxd5 33. Qxa6+ Kd7 34. Qf1 Nc4 35.
Re1 Kc8 36. a6 e3 {Alavi Moghaddam,S (2432)-Praggnanandhaa,R (2608) Chess.com
INT 2021 0-1}) (7. Nd2 f6 8. f4 g5 9. Nh3 O-O-O 10. O-O g4 11. Nf2 h5 12. b4
Nce7 13. Nd1 Nf5 14. Nb3 Ngh6 15. a4 Kb8 16. b5 Rc8 17. a5 c5 18. dxc5 fxe5 19.
fxe5 Bxc5+ 20. Nxc5 Rxc5 21. Bxh6 Nxh6 22. Ne3 Qc8 23. Rac1 Qc7 24. Qd4 g3 25.
Rf6 Rxb5 26. Rcf1 gxh2+ 27. Kh1 Qc5 28. Qf4 Ng4 29. Nxg4 hxg4 30. a6 Rb6 31.
axb7 Rg8 32. Qh6 g3 33. Qh7 Re8 34. Qg7 Rb3 35. Qxg3 Rxc3 36. Qg6 Qe7 37. Rf7
Qd8 38. R7f6 Qe7 39. R6f2 Rc6 40. Rf5 Rh8 41. Rf7 Qd8 42. R7f6 Qe7 43. Rf7 Qd8
44. Qg7 Rg8 45. Qh6 Qb6 46. Rd7 Re8 47. Qg6 Rd8 48. Re7 d4 49. Rb1 Qa5 50. Re8
Qc7 51. Rf1 Qb6 52. Rxd8+ Qxd8 53. Qf6 Qb6 54. Qh8+ Kxb7 55. Qh7+ Rc7 56. Qe4+
Qc6 57. Rb1+ Ka8 58. Qxd4 Rc8 59. Ra1 Qb7 60. Qf2 a6 61. Rd1 a5 62. Qa2 Qa6 63.
Qf2 Qb5 64. Qf3+ Qc6 65. Qf6 Qc2 66. Ra1 Qc3 67. Rd1 Qc2 68. Qf1 Ka7 69. Ra1
Qc3 70. Qf2+ Ka8 71. Rd1 Qc7 72. Qf3+ Qc6 73. Qa3 Qb5 74. Qd6 Qc6 75. Qa3 Qc7
76. Qe3 Rg8 77. Qe2 Qb6 78. Qe4+ Qb7 79. Qe2 Qb6 80. Qf3+ Qb7 81. Qf1 Qb6 82.
Qf3+ Qb7 83. Qf2 Rb8 84. Qa2 Qa6 85. Qd2 Qb5 86. Ra1 Kb7 87. Qd6 Qb6 88. Qd3
Ka7 89. Qc3 Kb7 90. Rc1 Ka7 91. Ra1 Kb7 92. Qd3 Qc7 93. Qb3+ Qb6 94. Qa2 Ka7
95. Qd2 Rd8 96. Qc2 Rd5 97. Rc1 Qb7 98. Qf2+ Kb8 99. Rf1 Qb4 100. Qf7 Qb5 101.
Qg8+ Ka7 102. Rf7+ Rd7 103. Qe8 Qb1+ 104. Kxh2 Rxf7 105. Qxf7+ Qb7 106. Qxe6
Qh7+ 107. Kg3 Qd3+ 108. Kh4 Qh7+ 109. Kg4 Qg7+ 110. Kh3 Qh7+ 111. Kg4 Qg7+ 112.
Kf3 Qb7+ 113. Kg3 a4 114. Qf6 a3 115. e6 a2 116. e7 Qc7+ 117. Kh3 Qd7+ 118. Kh4
Kb7 119. Qf3+ Kc7 120. Qf4+ Kc6 121. Qf3+ Kd6 122. Qa3+ Kc7 123. Qg3+ Kb7 124.
Qb3+ Kc7 125. Qg3+ Kc6 126. Qf3+ Kd6 127. Qa3+ Ke5 128. Qb2+ Kf5 129. g4+ Kg6
130. Qe5 Kf7 131. e8=R Qxe8 {adjudication 1/2-1/2 (131) LCZero v0.
24-sv-t60-3010 (3840)-Stockfish 20200407DC (3851) https://tcec-chess.com/
#season 2020}) 7... f6 8. f4 g5 9. exf6 gxf4 10. Bxf4 Nxf6 11. Nf3 Rg8 12. Nbd2
O-O-O 13. g3 Ng4 14. h3 Nh6 15. O-O-O Nf7 16. g4 Re8 17. Qd3 Nh8 18. Nh4 Qg7
19. Rde1 Ng6 20. Nxg6 Qxg6 21. Qxg6 Rxg6 22. Rhf1 Kd7 23. g5 h6 24. h4 Bd6 25.
gxh6 Bxf4 26. Rxf4 Rxh6 27. Nf3 Rhh8 28. Rf7+ Kd6 29. Rg1 Ref8 30. Ng5 Rfg8 31.
h5 Nd8 32. Rf6 {0.66}) 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 {The 4 Pawns, just
like Komodo Dragon!} Bf5 6. Nc3 dxe5 7. fxe5 e6 8. Nf3 Be7 9. Be3 Nc6 10. Be2
O-O 11. O-O f6 12. exf6 Bxf6 13. Qd2 Qe7 14. Kh1 h6 15. Rad1 Rad8 16. h3 {
Diverging from 16.Qc1 recommended in Gawain Jones' "CoffeeHouse Repertoire"}
Bh7 {[#]} ({Relevant:} 16... Rd7 17. Qc1 Re8 18. Rd2 Qd8 19. Rfd1 Kh8 20. b3
Bh7 21. Bg1 Nc8 22. d5 exd5 23. Nxd5 Be4 24. Nxf6 Rxd2 25. Nxd2 Bxg2+ 26. Kxg2
Rxe2+ 27. Kf1 Rxd2 28. Rxd2 Qxf6+ 29. Rf2 Qd8 30. Qd2 Qe8 31. Qf4 Kg8 32. Qxc7
Qe6 33. Qg3 Nd6 34. Qg4 Qe7 35. Bh2 Nf7 36. Qc8+ Kh7 37. Qc7 Qe4 38. Qxf7 Qh1+
39. Ke2 Qe4+ 40. Kf1 Qh1+ 41. Ke2 Qe4+ 42. Kd2 Nd4 43. Qf4 Qc2+ 44. Ke3 Qc3+
45. Ke4 Ne6 46. Qf5+ {Robson,R (2669)-Naroditsky,D (2623) Saint Louis 2021 1-0}
) 17. c5 $146 ({Predecessor:} 17. Qc1 Kh8 18. Bg1 a6 19. Qe3 Nc8 20. c5 Qe8 21.
Bc4 N8e7 22. Bxe6 Bxd4 23. Nxd4 Rxf1 24. Rxf1 Rxd4 25. Qe1 Rd3 26. Bg4 Bg6 27.
Bh2 Qb8 28. a3 Kh7 29. Bg3 a5 30. h4 Rd4 31. Be2 h5 32. Bf2 {1-0 (32) Quilang,
A-Taylor,E ICCF email 2021}) 17... Nd5 18. Bg1 g5 19. Bc4 Qg7 20. Bh2 Bf5 21.
Nxd5 exd5 22. Bb5 Be4 23. Bxc6 bxc6 24. Ne5 h5 25. Bg3 Rde8 26. b4 Qe7 27. a4
g4 28. Kh2 Bg5 29. Bf4 Rxf4 30. Rxf4 gxh3 31. gxh3 Bxf4+ 32. Qxf4 Rf8 33. Rg1+
Kh7 34. Nxc6 Rxf4 35. Nxe7 {1.12} *
[Event "#4 - 1.d4 d5 main lines"]
[Site "?"]
[Date "2022.07.18"]
[Round "?"]
[White "Stockfish Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "D46"]
[Annotator "gmmat"]
[PlyCount "66"]
1. d4 d5 {[d=66/89, 218155Mn]} 2. c4 e6 (2... dxc4 {[d=71, 844949Mn] and
Stockfish comes up with quite a surprise!} 3. Nf3 (3. e4 {is Stockfish's
choice at lower depths: [d=62/75, 72423Mn]} e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O
Be6 7. Bxe6 fxe6 8. Qb3 Qd7 9. Qxb7 Rb8 10. Qa6 Nge7 11. Nbd2 Ng6 12. Ne1 ({
Relevant:} 12. a3 Bd6 13. g3 O-O 14. Ne1 e5 15. Qe2 a5 16. Nc4 Qc8 17. Nd3 Qa6
18. Qc2 a4 19. Bd2 Rb3 20. Rac1 h5 21. f4 exf4 22. gxf4 Qb5 23. e5 Be7 24. Be1
Rxd3 25. Qxd3 Nxf4 26. Qe4 Nh3+ 27. Kg2 Ng5 28. Rxf8+ Bxf8 29. Qf5 Qd5+ 30. Kf1
Nf3 31. Bg3 d3 32. Ne3 d2 33. Rd1 Qb5+ 34. Kg2 Qe2+ 35. Kh1 Ncd4 36. Qe4 h4 37.
Bf4 Qe1+ 38. Kg2 Qe2+ 39. Kh1 Qe1+ 40. Kg2 Ng1 41. h3 Ndf3 {Le,Q (2709)
-Aronian,L (2782) Kolkata 2021 1-0}) 12... Be7 13. f4 O-O 14. g3 Rfd8 15. a3 d3
{[#]} 16. Nef3 $146 ({Predecessor:} 16. Kg2 Rb6 17. Qa4 Nd4 18. Qxd7 Rxd7 19.
b4 Rc6 20. Rf2 e5 21. f5 Nh8 22. Bb2 Nc2 23. Nxc2 Rxc2 24. Bxe5 Nf7 25. Bf4 Bf6
26. Rd1 Bd4 27. Rf3 Ne5 28. Bxe5 {1/2-1/2 (28) Komaromi,G (2482)-Steinbacher,T
(2425) ICCF email 2020}) 16... Rb6 17. Qa4 Nd4 18. Qxd7 Rxd7 19. Nxd4 Rxd4 20.
b3 Rd8 21. Rb1 Rc6 22. Nc4 e5 23. f5 Nh8 24. Be3 Nf7 25. Rfd1 g6 26. fxg6 hxg6
27. a4 a5 28. Bd2 Ng5 29. Nxe5 Re6 30. Bxg5 Rxe5 31. Bxe7 Rxe7 32. Rd2 Rxe4 33.
Rbd1 c5 34. Rxd3 Rxd3 35. Rxd3 c4 36. bxc4 {0.42}) 3... Nf6 4. e3 a6 5. Bxc4 e6
6. O-O c5 7. Be2 {A move virtually unnoticed in the time I was playing the
Queen's Gambit Accepted non-stop in the 1990s! Aronian's plan of ...Nbd7 and ..
.b6 was one of the development ideas I experimented with against various moves,
trying to avoid getting the queenside structure with ...b5 hit with a4 and
aiming for a more Hedgehog-y style of development.} Nbd7 (7... cxd4 {is
Stockfish's main line at [d=71, 844949Mn]} 8. Nxd4 e5 9. Nf3 Qxd1 10. Rxd1 Nc6
{[#]} 11. Nc3 $146 ({Predecessor:} 11. b3 e4 12. Nd4 Bd7 13. Bb2 Be7 14. Nd2
O-O 15. Nc4 Rad8 16. Kf1 b5 17. Nxc6 Bxc6 18. Ne5 Bb7 19. a4 Rxd1+ 20. Rxd1
bxa4 21. bxa4 Rd8 22. Rb1 Nd5 23. Ba3 Bxa3 24. Rxb7 Nc3 25. g4 Nxe2 26. Kxe2
Bf8 27. Ra7 Rd6 28. Nd7 f6 29. a5 Rd5 30. Nxf8 Kxf8 31. Rxa6 h5 32. gxh5 Rxh5
33. Ra8+ Kf7 34. a6 Ra5 35. Kf1 Kg6 36. Kg2 Kf5 37. h3 Ra1 38. Ra7 g6 39. Ra8
Kg5 40. a7 Kf5 {Epishin,V (2536)-Edouard,R (2613) Caleta 2018 1-0}) 11... Be7
12. b3 Be6 13. Bc4 Bb4 14. Bb2 Ke7 15. a3 Bxc3 16. Bxc3 Bxc4 17. bxc4 Nd7 18.
Rab1 Rab8 19. Nh4 g6 20. f4 b5 21. cxb5 Rxb5 22. Nf3 Rxb1 23. Rxb1 h6 24. fxe5
Rc8 25. Kf2 Ke6 26. e4 Na7 27. Bd2 Nc6 28. Bf4 g5 29. Bg3 g4 30. Nh4 Ncxe5 31.
Nf5 Rc3 32. a4 Ra3 33. Rd1 Ra2+ 34. Kf1 Nc4 {0.36}) 8. b3 b6 9. Ne5 Bb7 10. Bf3
{[#]} Bxf3 $146 ({Predecessor:} 10... Qc7 11. Bb2 Rd8 12. Bxb7 Qxb7 13. Qe2
Nxe5 14. dxe5 Nd5 15. Nd2 Be7 16. Ne4 O-O 17. Rfd1 Rd7 18. Qg4 Rfd8 19. h4 h5
20. Qg3 g6 21. Nd6 Qc6 22. e4 Nc7 23. Qf4 Bf8 24. Rd3 Nb5 25. a4 Nd4 26. Bxd4
cxd4 27. Rc1 Qa8 28. Rxd4 b5 29. a5 Qb8 30. Rc6 Qa8 31. Rc3 Bg7 32. Rcd3 Qa7
33. b4 Qc7 34. g3 Bf8 35. Kg2 Bg7 36. Rd1 Qc3 37. R1d3 Qc7 38. Rf3 Qc6 39. Rdd3
Rf8 40. Rc3 {Ding,L (2799)-Aronian,L (2782) Chess.com INT 2021 1-0}) 11. Qxf3
Bd6 12. Nxd7 Nxd7 13. Ba3 O-O 14. Nd2 Qb8 15. dxc5 Bxc5 16. Bb2 Bd6 17. Rad1
Ra7 18. h3 Rc8 19. Ne4 Bh2+ 20. Kh1 Be5 21. Bxe5 Nxe5 22. Qg3 Ng6 23. Qxb8 Rxb8
24. Rc1 Kf8 25. Rfd1 h6 26. g4 Ne7 27. Kg2 Nd5 28. Nc3 Nxc3 29. Rxc3 a5 30. Kf3
Rbb7 31. Rc6 b5 32. Rdd6 a4 33. Rb6 axb3 34. axb3 g5 35. Ke4 Rxb6 36. Rxb6 {
0.31}) (2... c6 3. Nf3 (3. cxd5 {Just like Koivisto, Stockfish is also
enamoured of the Exchange Slav for a while though it later switches to other
lines.[d=62/80, 128226Mn]} cxd5 4. Bf4 Nc6 5. e3 Nf6 6. Nc3 Bf5 7. Qb3 Na5 8.
Qa4+ Bd7 9. Qc2 e6 10. Nf3 Rc8 11. Bd3 Bb4 12. O-O Nh5 ({Relevant:} 12... h6
13. Bg3 Nc4 14. Rac1 O-O 15. Bh4 Be7 16. Qe2 Nd6 17. Ne5 a6 18. Rc2 Nfe4 19.
Bxe7 Nxc3 20. Rxc3 Qxe7 21. Rfc1 Rxc3 22. Rxc3 Rc8 23. Rc5 Be8 24. Qc2 Qd8 25.
h3 a5 26. Qc3 b6 27. Nc6 Bxc6 28. Rxc6 Rxc6 29. Qxc6 h5 30. h4 g6 31. g3 Kg7
32. Kf1 Kf6 33. Ke2 Kg7 34. Kd2 Ne8 35. Ke2 Nf6 36. a3 Ng4 37. f3 Nf6 38. Kf2 {
1/2-1/2 (38) Dubov,D (2711)-Kovalenko,I (2674) Chess.com INT 2022}) 13. Be5 f6
14. Bg3 Nc4 15. Rfc1 Nxg3 16. hxg3 Nd6 {[#]} 17. e4 $146 ({Predecessor:} 17.
Nd2 Qb6 18. Rab1 Qa5 19. a3 Bxc3 20. bxc3 b6 21. e4 dxe4 22. Nxe4 Nxe4 23. Bxe4
Kf7 24. c4 Rc7 25. Qd3 g6 26. Qe3 Kg7 27. g4 Qg5 28. Qxg5 fxg5 29. c5 Rhc8 30.
Rc3 e5 31. c6 Bxg4 32. d5 Rd8 33. f3 Bc8 34. a4 Kf6 35. a5 bxa5 36. Rc5 Ke7 37.
Rxa5 Rf8 38. Rb8 g4 39. fxg4 Rf4 40. Bf3 Kd6 41. g5 Rd4 42. Kf2 e4 43. Ke3 Rxd5
44. Rxd5+ Kxd5 45. Bxe4+ Kc5 46. Rb7 Kd6 {Stremavicius,T (2495)-Nasuta,G (2512)
Legnica 2022 1-0 (69)}) 17... dxe4 18. Bxe4 Bxc3 19. bxc3 Nxe4 20. Qxe4 Qc7 21.
c4 O-O 22. Rab1 Qc6 23. d5 exd5 24. cxd5 Qd6 25. Rxc8 Bxc8 26. Rd1 Bd7 27. Nh4
Re8 28. Qd3 Qe5 29. Qa3 Qe2 30. Rb1 b5 31. d6 Qe5 32. Nf3 Qd5 33. Qa6 {0.40})
3... Nf6 4. e3 (4. Nc3 {[d=70, 285648Mn]} e6 (4... dxc4 {[d=78/99, 919755Mn]}
5. a4 e6 {is also Stockfish's choice, just like Koivisto. Komodo Dragon
prefers the old-fashioned 5...Bf5 6.Ne5 Nbd7 lines!} 6. e3 c5 {An odd
Semi-Tarrasch line where White's extra tempo a4 may not be useful!} 7. Bxc4
cxd4 8. exd4 Nc6 9. Qe2 Be7 10. O-O O-O 11. Rd1 Nb4 12. Bg5 Bd7 13. d5 exd5 14.
Nxd5 Nbxd5 15. Bxd5 Nxd5 16. Rxd5 Bxg5 17. Nxg5 h6 18. Qd2 hxg5 19. Rxd7 Qf6
20. Rxb7 Rfd8 21. Qa5 {[#]} Rab8 $146 ({Predecessor:} 21... a6 22. h3 Rd6 23.
Qb4 Rad8 24. Rb8 Rxb8 25. Qxb8+ Kh7 26. Rb1 Rd2 27. Qg3 Qf5 28. Re1 Rxb2 29.
Re5 {1/2-1/2 (29) Rodshtein,M (2645)-Hansen,S (2566) Porto Carras 2011}) 22.
Rb4 Rxb4 23. Qxb4 Rd4 24. Qa5 g6 25. Rb1 Qd6 26. h3 Rd1+ 27. Rxd1 Qxd1+ 28. Kh2
Qd4 29. Qxg5 Qxa4 30. Qd8+ Kh7 31. Qc7 Kg8 32. Qc3 a5 33. b3 Qf4+ 34. Qg3 Qb4
35. Qe3 Kg7 36. Kg3 Qd6+ 37. Kg4 Qd7+ 38. Kf4 Kh7 39. g4 a4 40. bxa4 Qxa4+ 41.
Kg3 Qa1 42. Kg2 Kg8 43. h4 Qa4 44. Qg3 Kg7 45. Qf3 Qa1 46. Qe3 Kg8 47. h5 gxh5
48. gxh5 Qf6 49. Kg3 {14t SF}) 5. e3 {--> See the 6.Qc2 Meran lines}) 4... Bf5
5. Nc3 {Stockfish is happy to enter the "Slow Slav" through this move order.}
e6 6. Nh4 Bg6 7. Nxg6 hxg6 8. Bd2 Nbd7 9. Qb3 Qb6 10. Be2 Be7 11. Qxb6 axb6 12.
O-O {[#]} Ne4 $146 ({Predecessor:} 12... O-O 13. Rfd1 dxc4 14. a4 Bb4 15. Bxc4
Rfd8 16. Kf1 e5 17. h3 Ne8 18. Bb3 Nc7 19. Nb5 cxb5 20. Bxb4 exd4 21. exd4 bxa4
22. Rxa4 Rxa4 23. Bxa4 Nd5 24. Bd2 Nf8 25. h4 Ne6 26. Be3 Nec7 27. Bb3 Ra8 28.
Ke2 Ra5 29. Rd2 Rb5 30. Bc4 Rb4 31. Rc2 Ra4 32. Bxd5 Nxd5 33. Rc8+ Kh7 34. Rd8
Ra5 35. Bd2 Rb5 36. Kd3 Nf6 37. Bc3 Rf5 38. f3 Rh5 39. Rf8 Rxh4 40. Rxf7 Rh2
41. g4 Rh3 42. g5 {Lund,S (2481)-Akesson,J (2382) Sweden 2009 1-0}) 13. Nxe4
dxe4 14. a4 f5 15. Bc3 Kf7 16. b4 g5 17. h3 Ra7 18. Rfb1 Rha8 19. Bh5+ g6 20.
Bd1 Bd8 21. Kf1 Nf6 22. Ra2 b5 23. cxb5 cxb5 24. a5 Nd5 25. Bd2 b6 26. Rba1
bxa5 27. bxa5 b4 28. a6 Nc7 29. Bxb4 Rxa6 30. Rxa6 Rxa6 31. Rxa6 Nxa6 32. Be1
Bb6 33. f3 exf3 34. Bxf3 Ke8 35. Bd2 Nc7 {0.39}) 3. Nc3 c6 {An interesting
move order for Stockfish to prefer: it has a very risky reputation!} (3... Be7
{[d=67, 433681Mn]} 4. cxd5 exd5 5. Bf4 c6 6. Qc2 Nf6 7. h3 g6 8. e3 Bf5 9. Qb3
Qb6 10. g4 {[#]} Be6 $146 ({Predecessor:} 10... Qxb3 11. axb3 Bc2 12. Nf3 Ne4
13. Nxe4 Bxe4 14. Be2 Bb4+ 15. Kd1 Nd7 16. Rg1 Bxf3 17. Bxf3 O-O 18. h4 Rfe8
19. Be2 a6 20. Kc2 Bf8 21. Rad1 Bg7 22. Kb1 Nf8 23. Bg3 Ne6 24. Bd3 Rad8 25.
Bc2 Bf8 26. Be5 Bg7 27. Bxg7 Kxg7 28. b4 Nc7 29. Bd3 h6 30. Kc2 Re7 31. Rg3 Ne8
32. Kd2 Nd6 33. Ke2 Ra8 34. Ra1 Rae8 35. Rag1 Ra8 36. Ra1 Rae8 37. Rag1 Ra8 {
1/2-1/2 (37) Aleksandrov,A (2602)-Cheng,B (2507) Batumi 2018}) 11. Bh6 Ne4 12.
Bd3 Na6 13. Qxb6 axb6 14. Bxe4 dxe4 15. Nxe4 Nb4 16. Kd2 f5 17. Nc3 Nxa2 18. d5
Bxd5 19. Nxd5 cxd5 20. Bg7 Rg8 21. Bd4 Kd7 22. Ne2 Rgf8 23. Nf4 Bc5 24. Nxd5
Bxd4 25. exd4 Kc6 26. Nf4 Nb4 27. Rxa8 Rxa8 28. Rc1+ Kd6 29. Re1 fxg4 30. Re6+
Kd7 31. Rxb6 Rf8 32. Rxb7+ Kd6 33. Rxb4 Rxf4 34. hxg4 Rxg4 35. Ke3 h5 36. Rb8
Rg1 37. b4 h4 38. Rh8 g5 39. Rh5 Ke6 40. Ke4 Re1+ 41. Kd3 Rd1+ 42. Kc4 Rc1+ 43.
Kb5 Rd1 44. Rxg5 {0.28}) (3... Nf6 {[d=65, 104318Mn]} 4. cxd5 exd5 5. Bg5 Be7
6. e3 O-O 7. Bd3 h6 8. Bh4 Re8 9. Nge2 c6 10. O-O Nbd7 11. Qc2 Nh5 12. Bxe7
Qxe7 {Exactly the same approach as that used by AlphaZero against Stockfish 8
(see "Game Changer" and https://youtu.be/49VVjCeGFPE)} 13. a3 Nb6 14. h3 ({
Relevant:} 14. Rae1 Bd7 15. Nc1 Rad8 16. b4 Nf6 17. Nb3 Ne4 18. Bxe4 dxe4 19.
Nd2 f5 20. f3 exf3 21. Nxf3 Nc4 22. e4 f4 23. Qc1 Bg4 24. Nd2 Rxd4 25. Nxc4
Rxc4 26. Qxf4 Rxc3 27. Qxg4 Rxa3 28. e5 Qe6 29. Rf5 Rd3 30. Ref1 Re3 31. Rf8+
Kh7 32. Qxe6 Rxe6 33. R8f7 b5 34. Rxa7 R3xe5 35. Rff7 Rg6 36. Ra2 Re4 37. Rb2
Rc4 38. h3 Rf6 39. Rc7 h5 40. Kh2 h4 41. Re7 Rf1 42. Re5 g6 43. Rd2 Rxb4 {
Nabaty,T (2649)-Sargissian,G (2664) Terme Catez 2021 0-1 (70)}) 14... g6 {[#]}
15. b4 $146 ({Predecessor:} 15. Rac1 Ng7 16. Ng3 h5 17. Rfe1 Qg5 18. Kh1 Qf6
19. Rb1 {1/2-1/2 (19) Albano,A (2282)-Poetz,F (2297) ICCF email 2014}) 15... a6
16. a4 Ng7 17. b5 axb5 18. axb5 Bf5 19. bxc6 bxc6 20. Nf4 Bxd3 21. Qxd3 Nf5 22.
Rfb1 Rxa1 23. Rxa1 Rc8 24. Nb1 Qe8 25. Nd2 Nd6 26. Re1 Rb8 27. Qc3 Nbc4 28.
Nxc4 Nxc4 29. e4 Qd8 30. g3 Qa5 31. Qxa5 Nxa5 32. exd5 Rd8 33. dxc6 Nxc6 34. d5
Nb4 {0.43}) (3... c5 {[d=68, 112314Mn]} 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7.
Bg2 cxd4 8. Nxd4 Bc5 {A couple of surprises! First of all Stockfish doesn't
want the Komodo Dragon 6.dxc5 line (which is 100% safe for White with only
losing chances for Black) and prefers a line considered offbeat and poor in
the pre-computer age (8...Bc5) It was first played by Salwe in 1911 and then
taken by Frank Marshall. Recently it's been played a lot at the top level
(Dubov in particular)} 9. Nb3 Bb4 10. Bg5 O-O 11. O-O Bxc3 12. bxc3 h6 13. Bxf6
Qxf6 14. Qxd5 Qxc3 ({Relevant:} 14... Be6 15. Qf3 Qe7 16. Nd4 Rac8 17. Qe3 Na5
18. Nxe6 Qxe6 19. Qxe6 fxe6 20. Rac1 Rfd8 21. Rc2 b6 22. Be4 Kf7 23. h4 Rc5 24.
Rfc1 Ke7 25. Kg2 Nc4 26. Bd3 Rdc8 27. Bxc4 Rxc4 28. Kf3 Kf6 29. Ke3 b5 30. Kd3
a6 31. Rd2 Ra4 32. Rb2 Ke5 33. Kc2 Ra3 34. Kd2 Rc4 35. Rcc2 Rc6 36. Rb3 Ra4 37.
Rb4 Ra3 38. Rb3 Ra4 39. Rb4 Ra3 40. Rb3 Ra4 41. Kc1 Rac4 42. Kb2 Rd6 43. Rb4
Rc5 44. Rg4 {Tran,T (2529)-Petrosyan,M (2613) Moscow 2019 0-1 (74)}) 15. Qb5 {
[#]} Nd4 $146 ({Predecessor:} 15... Qf6 16. e3 Rb8 17. h3 Bd7 18. Rad1 Qe7 19.
Qc5 Rfe8 20. Rd2 Be6 21. Rfd1 Rec8 22. g4 Rc7 23. Qxe7 {1/2-1/2 (23) Graterol,
S (2315)-Gray,G (2337) ICCF email 2019}) 16. Nxd4 Qxd4 17. e3 Qf6 18. Qa5 Qe7
19. Rab1 b6 20. Rxb6 axb6 21. Qxa8 Be6 22. Qc6 Bxa2 23. Qxb6 Rd8 24. Ra1 Be6
25. Ra8 Rxa8 26. Bxa8 Bh3 27. Bg2 Bxg2 28. Kxg2 Qe4+ 29. Kg1 g6 30. Qb8+ Kg7
31. Qf4 Qb1+ 32. Kg2 Qa2 33. h3 Qa8+ 34. Kh2 Qc8 35. Qe5+ Kg8 36. Qd5 Qc2 37.
Kg2 Qb1 38. Qd8+ Kg7 39. Qd4+ Kg8 {0.50}) (3... a6 {[d=62/75, 143714Mn]} 4.
cxd5 exd5 5. Nf3 c6 ({Relevant:} 5... Nf6 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 Bd6 9.
Bh4 c6 10. Nd2 h6 11. Qf3 g5 12. Bg3 Bg4 13. Bxd6 Bxf3 14. Nxf3 Ne4 15. Bxe4
dxe4 16. Nxe4 Qa5+ 17. Nc3 f6 18. O-O Kf7 19. Nd2 Kg7 20. e4 Rae8 21. Nc4 Qd8
22. Ne3 Nb6 23. Bc5 Nd7 24. Bd6 Nf8 25. Rad1 Kh7 26. e5 Ng6 27. Ne4 Re6 28. d5
cxd5 29. Nxd5 f5 30. Ndf6+ Kg7 31. Ng3 Nf4 32. Nxf5+ Kg6 33. g4 Qb6 34. Nd5
Nxd5 35. Rxd5 {Dubov,D (2702)-Sarana,A (2668) Chess.com INT 2022 0-1}) 6. Bf4
Bd6 7. Bxd6 Qxd6 8. e3 Bf5 9. Nh4 {[#]} Be6 $146 ({Predecessor:} 9... Ne7 10.
Nxf5 Nxf5 11. Bd3 Ne7 12. O-O Nd7 13. a4 O-O 14. e4 dxe4 15. Nxe4 Qh6 16. Ra3
Nd5 17. Bb1 Nf4 18. Rf3 Rae8 19. Kh1 Re6 20. Qd2 Nd5 21. Ng5 Rg6 22. Bxg6 Qxg6
23. Nh3 N7f6 24. Re1 Ne4 25. Qd3 Re8 26. Kg1 Re6 27. Nf4 Nxf4 28. Rxf4 Nf6 29.
Qd1 Qc2 30. g3 Rxe1+ 31. Qxe1 Qxb2 32. d5 cxd5 33. Rb4 Qc2 34. Rxb7 h6 35. Qb1
Qxa4 36. Rb8+ Ne8 37. Qb7 Qa1+ 38. Kg2 Qe5 39. h3 {Vorobjov,D (2164)-Kozionov,
K (2399) Moscow 2014 1-0 (80)}) 10. Qb3 Qe7 11. Nf3 Nf6 12. Bd3 O-O 13. O-O Ne4
14. Na4 Nd6 15. Nc5 g6 16. Ne5 f6 17. Nf3 Nd7 18. Rac1 Rfe8 19. Rfe1 Kg7 20.
Qc3 Nxc5 21. dxc5 Ne4 22. Qa5 Ng5 23. Nd4 Bf7 24. h4 Ne6 25. Qc3 Nxd4 26. exd4
Qd7 27. g3 Qg4 28. Kg2 Qd7 29. Rxe8 Rxe8 30. Re1 Rxe1 31. Qxe1 h6 32. Qd1 Qe6
33. Qb3 Qg4 34. Qc3 Qd1 {0.48}) 4. Nf3 (4. e4 {[d=70, 113043Mn]} dxe4 5. Nxe4
Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Ne2 {[d=76, 236068Mn] chosen with increased
depth. This was also Komodo Dragon's final choice!} (8. Be2 Na6 9. Bd6 Qxg2 10.
Bf3 ({Relevant:} 10. Qd2 Qe4 11. Nf3 e5 12. Rg1 g6 13. Ng5 Qf4 14. Qxf4 exf4
15. Bxf4 Bf5 16. Rg3 h6 17. Re3+ Kf8 18. Bd6+ Kg7 19. Nf3 Nf6 20. Nd4 Ne4 21.
Nxf5+ gxf5 22. Be5+ f6 23. Bf4 Rad8 24. f3 Ng5 25. Re7+ Kg6 26. h4 Rh7 27. Rxh7
Nxh7 28. Kf2 Nf8 29. Rg1+ Kh7 30. Be3 Ne6 31. Bxa7 Nb4 32. a3 Nd3+ 33. Bxd3
Rxd3 34. Re1 Ng7 35. Re7 Rd2+ 36. Re2 Rd1 37. Re7 Rd2+ 38. Re2 Rd1 39. b4 Kg6 {
Navara,D (2681)-Anton Guijarro,D (2692) Prague 2022 1-0}) 10... Qg5 11. Ne2 Ne7
12. Ng3 {[#]} e5 $146 ({Predecessor:} 12... Qa5+ 13. Ke2 e5 14. b4 Qd8 15. b5
Be6 16. Rc1 Qb6 17. bxa6 Qxa6 18. Qd3 Ng6 19. Nh5 O-O-O 20. c5 Qa4 21. Be4 Bg4+
22. f3 Rxd6 23. cxd6 Bxh5 24. Kf2 Nf4 25. Qd2 Bg6 26. d7+ Kd8 27. Rhd1 Bxe4 28.
Qd6 Bd5 29. a3 Qb3 30. Rxd5 Qxd5 31. Qb8+ Ke7 {0-1 (31) Gandrud,V (2242)-Nezad,
H (2373) Caleta 2014}) 13. Qb3 Ng6 14. Be2 h5 15. Rd1 Rh6 16. c5 Nf4 17. h4 Qd8
18. Qc3 Nxe2 19. Nxe2 Be6 20. Bxe5 Bd5 21. Rh3 Rg6 22. Bd6 Be6 23. Rh1 Nc7 24.
Nf4 Nd5 25. Rxd5 Bxd5 26. Nxg6 fxg6 27. Qxg7 Qa5+ 28. Kd1 Bf3+ 29. Kc1 O-O-O
30. b4 Qa3+ 31. Kb1 Rd7 32. Qg8+ Rd8 33. Qe6+ Rd7 {0.00}) 8... Na6 9. Bf8 Ne7
10. Bxg7 Nb4 11. Qd6 ({Relevant:} 11. Bxh8 e5 12. Bf6 Nd3+ 13. Kd2 Bf5 14. f3
Qxc4 15. Qb3 Qc5 16. Qxb7 Rd8 17. Qxe7+ Qxe7 18. Bxe7 Kxe7 19. Ke3 Nxb2 20. Ng3
Bg6 21. Be2 f5 22. Kf2 Rd2 23. Rhc1 f4 24. Ke1 Rd6 25. Ne4 Bxe4 26. fxe4 Na4
27. Rab1 Nb6 28. a4 Rh6 29. a5 Nd7 30. h3 Rg6 31. Bf3 {1-0 (31) Indjic,A (2612)
-Harika,D (2511) Chess.com INT 2021}) 11... Nd3+ 12. Kd2 Nf5 13. Qxd3 Qxd3+ 14.
Kxd3 Nxg7 15. Kc3 c5 16. g4 b6 17. Bg2 Rb8 18. Rad1 Bb7 19. Bxb7 Rxb7 {[#]} 20.
a3 $146 ({Predecessor:} 20. Ng3 h5 21. Ne4 Ke7 22. h3 f5 23. gxf5 Nxf5 24. Rhg1
a5 25. a3 Rd7 26. b4 axb4+ 27. axb4 cxb4+ 28. Kxb4 Rxd1 29. Rxd1 Ra8 30. Kb5
Rb8 {1/2-1/2 (30) Szczepankiewicz,D (2373)-Zawadka,Z (2287) ICCF email 2021})
20... h5 21. g5 Nf5 22. Nf4 Nd4 23. b4 Ke7 24. Rhe1 Rd8 25. Rd3 h4 26. Re4 Rbd7
27. Rde3 Nf5 28. Nxe6 fxe6 29. Rxe6+ Kf8 30. Rf3 Kg8 31. Rxf5 Rd3+ 32. Kc2 cxb4
33. axb4 Rd2+ 34. Kc1 Rd1+ 35. Kc2 {0.00}) 4... Nf6 (4... dxc4 {[d=68,
238521Mn] The Noteboom is normally Black's main reason for playing this move
order. In human chess it's pretty effective as the resulting positions are
harder for White to play than Black (as I can say from bad personal
experience!)} 5. e3 b5 6. a4 Bb4 7. Bd2 a5 8. axb5 Bxc3 9. Bxc3 cxb5 10. b3 Bb7
11. bxc4 b4 12. Bb2 Nf6 13. Bd3 O-O 14. O-O Nbd7 15. Nd2 Nc5 ({Relevant:} 15...
e5 16. Bc2 Qc7 17. h3 Rfe8 18. Bb3 h6 19. Nf3 Ra6 20. Nxe5 Nxe5 21. dxe5 Nd7
22. f4 Nc5 23. Bc2 a4 24. f5 b3 25. Bb1 Raa8 26. e6 Qg3 27. Rf2 f6 28. Bd4 Ne4
29. Bxe4 Bxe4 30. Ra3 Rec8 31. c5 Kh7 32. Qd2 b2 33. Qxb2 Rab8 34. Qa2 Rb1+ 35.
Rf1 Rcb8 36. Qf2 Rxf1+ 37. Kxf1 Rb1+ 38. Ke2 Qb8 39. Qf4 Qb5+ 40. Kd2 Qb4+ 41.
Bc3 Qxa3 42. Qxe4 Qc1+ 43. Kd3 Qf1+ {0-1 (43) Donchenko,A (2668)-Firouzja,A
(2749) Wijk aan Zee 2021}) 16. Bc2 {The same setup that Koivisto chose.} Nce4
17. f3 Nxd2 18. Qxd2 Qc7 19. Rfc1 Rfc8 20. Bb3 Qd8 21. e4 h6 {[#]} 22. Qd1 $146
({Predecessor:} 22. d5 Nd7 23. Bd1 Nc5 24. Rcb1 Qb6 25. Kh1 a4 26. h3 f6 27.
Bc1 b3 28. Ba3 e5 29. Kh2 Kh7 30. Qc3 Nd7 31. f4 exf4 32. Bg4 f3 33. Bxd7 Qc7+
34. e5 Qxd7 35. Qd3+ Kg8 36. e6 Qc7+ 37. d6 Qa5 38. d7 Qe5+ 39. g3 Be4 40.
dxc8=Q+ Rxc8 41. Qe3 Rxc4 42. Rb2 Qxe6 43. Rf2 Rc2 44. Rxc2 bxc2 45. Re1 Qd7
46. Bc1 Bc6 47. Rf1 f5 48. Qd2 Qxd2+ 49. Bxd2 a3 50. g4 fxg4 51. hxg4 g5 {
Wojcik,W (2337)-Plas,R (2375) ICCF email 2020 1-0 (65)}) 22... Bc6 23. Kh1 Be8
24. c5 Qe7 25. Ba4 Bxa4 26. Qxa4 e5 27. c6 exd4 28. Bxd4 Qd6 29. Bg1 Nh5 30.
Rc5 Nf4 31. Rd1 Qe6 32. Rxa5 Rxa5 33. Qxa5 Rxc6 34. Qxb4 Ne2 35. Qd2 Nxg1 36.
Kxg1 Kh7 37. h3 Qf6 38. Kh1 Rc8 39. Rc1 Rd8 40. Qc2 Qd6 41. Qc7 Qxc7 42. Rxc7
Kg6 43. Kh2 h5 44. Rc6+ f6 45. Kg3 Rd4 {0.27 (though a drawn R+4 vs R+3
endgame)}) 5. e3 (5. Bg5 {[d=67, 145824Mn] via 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3
e6 5.Bg5} h6 {Even after additional thinking [d=75, 651790Mn] Stockfish still
prefers 5...h6 and 6.Bxf6} (5... dxc4 {[d=78, 742724Mn]} 6. e4 b5 7. e5 h6 8.
Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Be7 {Just like Komodo Dragon, Stockfish also
prefers Smyslov's 10...Be7 to the mainstream 10...Nbd7!} 11. exf6 Bxf6 12. Bxf6
Qxf6 13. g3 Bb7 14. Ne4 Qe7 15. Bg2 Na6 16. O-O O-O-O 17. h4 ({Relevant:} 17.
a4 f5 18. axb5 cxb5 19. Rxa6 Bxa6 20. Nc5 Qxc5 21. dxc5 Rxd1 22. Rxd1 b4 23.
Ra1 b3 24. Bf1 Rd8 25. h4 Bb5 26. h5 a5 27. Rxa5 c3 28. bxc3 Bxf1 29. Ra8+ Kc7
30. Rxd8 Kxd8 31. h6 b2 32. h7 b1=Q 33. h8=Q+ Kc7 34. Qe5+ Kb7 35. c6+ Kxc6 36.
Qxe6+ Kb5 37. Qd5+ Ka4 38. Kh2 Be2 39. Qa8+ Kb3 40. Qb7+ Kc2 41. Qxb1+ Kxb1 42.
Kh3 Kc2 43. Kh4 Kd3 44. Kg5 Ke4 45. c4 Bxc4 46. f3+ Ke5 {Gukesh,D (2614)
-Erigaisi,A (2633) Kanpur 2022 1/2-1/2}) 17... c5 18. a4 Rxd4 19. Qe2 b4 20.
Rac1 Bd5 {[#]} 21. Rfe1 $146 ({Predecessor:} 21. Rfd1 Rxd1+ 22. Rxd1 Rd8 23.
Rc1 Nb8 24. Qe3 Nc6 25. Nxc5 Qf6 26. b3 c3 27. Qe2 Qd4 28. Qb5 Kc7 29. Na6+ Kd6
30. Bxd5 exd5 31. a5 Re8 32. Qb7 Re7 33. Qc8 Qd2 34. Nb8 Qxc1+ 35. Kg2 Nxb8 36.
Qxb8+ Kc5 37. Qc8+ Kd4 {0-1 (37) Melkumyan,H (2660)-Shankland,S (2722) Batumi
2018}) 21... Rd8 22. Ng5 Qf6 23. b3 Nb8 24. bxc4 Bxg2 25. Kxg2 Rd2 26. Qe3 Qf5
27. Qf3 Qxf3+ 28. Nxf3 Ra2 29. Rcd1 Nd7 30. Ng5 Rf8 31. Rd3 Rxa4 32. h5 Ra6 33.
h6 Rc6 34. h7 Rh8 35. Red1 Rc7 36. Rd6 Rb7 37. g4 e5 38. Rh1 Nf8 39. Rf6 Nxh7
40. Rxf7 b3 41. Rxb7 Kxb7 42. Ne4 Ka8 43. f3 b2 44. Nc3 a5 45. Rb1 Rb8 46. Nb5
Rf8 47. Rxb2 Ng5 48. Nc7+ Ka7 49. Rb5 a4 50. Rxc5 {0.46}) 6. Bxf6 {Rather
surprisingly, Stockfish - like Koivisto - has a strong penchant for this line
rather than the sharp anti-Moscow gambit with 6.Bh4 (though Koivisto also
chooses 6.Bh4 from time to time)} (6. Bh4 {So what does Stockfish think about
the anti-Moscow Gambit? [d=79, 340782Mn]} dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7
10. O-O Nbd7 11. Ne5 Bg7 12. Nxd7 Nxd7 13. Bd6 a6 14. Bh5 e5 15. f4 gxf4 16.
dxe5 {[#]} Nxe5 $146 ({Predecessor:} 16... Bxe5 17. Bxf7+ Kxf7 18. Qh5+ Ke6 19.
Rad1 Bxd6 20. Qg4+ Ke7 21. Qg7+ Ke6 22. Ne2 c5 23. Nxf4+ Bxf4 24. Rxf4 Rf8 25.
Rxf8 Nxf8 26. Rxd8 Rxd8 27. Qxb7 Rd1+ 28. Kf2 Rd2+ 29. Kg3 {1-0 (29) Agrest,E
(2570)-Kulaots,K (2557) Turin 2006 CBM 113 [Marin,M]}) 17. Rxf4 Rf8 18. Rf5
Qb6+ 19. Kh1 O-O-O 20. Bg4 Nxg4 21. Qxg4 Rxd6 22. Rxb5+ f5 23. Qxg7 cxb5 24.
Qxf8+ Rd8 25. Qxf5+ Kb8 26. h3 Rd2 27. Qf8+ Ka7 28. a4 bxa4 29. Rxa4 Qxb2 30.
Qc5+ Kb8 31. Qe5+ Ka8 32. Qf6 Rc2 33. Rxa6+ Bxa6 34. Qxa6+ Kb8 35. Qd6+ Kb7 36.
Nd5 Qa1+ 37. Kh2 Qg7 38. Qb6+ Kc8 39. Qc5+ Kb7 {0.00}) 6... Qxf6 7. e3 Nd7 8.
Be2 Qd8 9. O-O Be7 {[#]} 10. Rb1 $146 {Stockfish's main line after 600000Mn of
thinking.} (10. a3 O-O {[#]} 11. Rc1 $146 ({Predecessor:} 11. b4 dxc4 12. Bxc4
b5 13. Bd3 a5 14. Qb3 Nb6 15. Ne5 Bb7 16. Rac1 axb4 17. axb4 Qd6 18. Ne4 Qxb4
19. Qd1 f5 20. Rb1 Qa5 21. Ng3 Nd5 22. Ng6 Rfe8 23. Qh5 Qa3 24. e4 Qxd3 25.
exd5 Qxd4 26. dxe6 Qg4 27. Qxf5 Qxf5 28. Nxf5 Bc5 29. Rfc1 Ba3 30. Re1 Kh7 31.
Nf4 g6 32. Nd4 Ra4 33. Rbd1 g5 34. Nh5 Kg6 35. Nf5 Bf8 36. Nhg3 Bb4 37. Nd6
Bxd6 38. Rxd6 Re7 39. Rd7 Rxd7 40. exd7 Rd4 {Malec,S (2195)-Jarmula,P (2031)
Warsaw 2011 1-0}) 11... b6 12. b4 a5 13. Qb3 axb4 14. axb4 Bb7 15. Rfd1 Qb8 16.
c5 Ba6 17. Qc2 Bxe2 18. Nxe2 Rc8 19. g3 Rc7 20. Nc3 Rb7 21. Rb1 Ra3 22. Ra1
Rba7 23. Rxa3 Rxa3 24. Kg2 Qa8 25. e4 bxc5 26. bxc5 Qa5 27. Rc1 Bg5 28. Nxg5
hxg5 29. exd5 exd5 30. Nxd5 cxd5 31. c6 Qc7 32. cxd7 Qxd7 33. Qc8+ Qxc8 34.
Rxc8+ Kh7 35. Rd8 Rd3 36. Rxd5 Kg6 37. Rd7 g4 38. Rd8 Rd2 {0.07}) ({
Predecessor:} 10. Qc2) 10... O-O 11. b4 dxc4 12. Bxc4 b6 13. a3 Bb7 14. Qb3 Qc7
15. Rfc1 Rfc8 16. Ne2 Qd8 17. Re1 a5 18. Nf4 Ra7 19. Bxe6 fxe6 20. Qxe6+ Kh7
21. Qe4+ Kg8 {0.00}) 5... Nbd7 6. Qc2 {Amazingly, the 6.Qc2 Semi-Slav is
Stockfish's preference above any of the 5.Bg5 lines!} Bd6 7. Bd3 dxc4 (7... O-O
{is the main line Stockfish chooses through the 2...c6 3.Nf3 Nf6 4.Nc3 move
order!} 8. O-O e5 9. cxd5 cxd5 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 h6 13. Be3
exd4 14. Bh7+ Kh8 15. Bxd4 Nf6 16. Bf5 Qa5 17. Bxc8 Rfxc8 18. Qb3 Qd5 19. Qd1 (
{Relevant:} 19. Rfd1 Qxb3 20. axb3 Ne4 21. Kf1 Bc5 22. Bxc5 Rxc5 23. Rd4 Nf6
24. Rc4 Rb5 25. b4 Kg8 26. Ra5 Rb6 27. g3 a6 28. Rac5 Rd8 29. Ne5 Nd5 30. Rd4
Rbd6 31. Nc4 R6d7 32. Ne5 Rd6 33. Nc4 R6d7 34. Ne5 {1/2-1/2 (34) Bruzon
Batista,L (2701)-Robson,R (2615) Campinas 2013}) 19... Qf5 20. Re1 {[#]} Rd8
$146 ({Predecessor:} 20... Kg8 21. Nh4 Qg5 22. g3 Rd8 23. Qf3 Bf8 24. Rad1 Qd5
25. Bxf6 Qxf3 26. Nxf3 gxf6 27. Kg2 b6 28. Nh4 Rac8 29. Nf5 Kh7 30. Ne3 Bb4 31.
Rxd8 Rxd8 32. Rc1 Bc5 33. Rd1 Rxd1 34. Nxd1 Kg6 35. Ne3 f5 36. Nd5 f6 37. b4
Bd6 38. b5 Bc5 39. Kf3 Bd6 40. Nf4+ Kf7 41. g4 fxg4+ 42. Kxg4 Bc5 43. f3 Bf8
44. Kf5 Bd6 45. h3 Bf8 46. h4 Bd6 47. Nd3 Bf8 48. h5 Ba3 49. f4 Be7 50. Nf2 {
Visloguzov,V (2372)-Istomin,A (2183) ICCF email 2018 1-0 (69)}) 21. Qb3 Qd5 22.
Re3 Qxb3 23. Rxb3 b6 24. Bxf6 gxf6 25. g3 Bc5 26. Kg2 Rd5 27. Rc3 a5 28. Rc2
Re8 29. b3 Re6 30. Re1 Kg7 31. Rce2 Rxe2 32. Rxe2 Rd3 33. Rd2 Rc3 34. Nh4 a4
35. bxa4 Ra3 36. Kh3 Rxa4 37. Ng2 Kg6 38. Nf4+ Kg7 39. Kh4 Ra5 40. Kg4 Bb4 {
0.17}) 8. Bxc4 a6 9. O-O O-O 10. a4 c5 11. Rd1 cxd4 ({Relevant:} 11... Qc7 12.
Ne4 Nxe4 13. Qxe4 Nf6 14. Qh4 cxd4 15. Bd3 e5 16. exd4 e4 17. Bxe4 Nxe4 18.
Qxe4 Qd7 19. Bf4 Re8 20. Ne5 Qf5 21. Qxf5 Bxf5 22. Nd3 Bxd3 23. Bxd6 Bc2 24.
Rdc1 Rac8 25. a5 f6 26. f3 Bb3 27. Rxc8 Rxc8 28. Re1 Ba4 29. Ba3 Re8 30. Rxe8+
Bxe8 31. d5 Bf7 32. d6 Be8 33. Kf2 Kf7 34. Ke3 Ke6 35. Kd4 Bc6 36. h4 h5 37.
Bb4 Bb5 38. g4 hxg4 39. fxg4 Be2 40. Kc5 Kd7 41. Kb6 {So,W (2776)-Rapport,R
(2776) Bucharest 2022 1/2-1/2}) 12. exd4 Qc7 13. Qe2 b6 14. d5 Ne5 15. Nxe5
Bxe5 {[#]} 16. Bg5 $146 ({Predecessor:} 16. h3 Re8 17. Be3 Bxc3 18. d6 Qc6 19.
bxc3 Bb7 20. f3 Nd5 21. Bxd5 exd5 22. Qd2 Qxd6 23. Rab1 b5 24. axb5 axb5 25.
Rxb5 Bc6 26. Rb6 Ra4 27. Rdb1 h6 28. Bd4 Raa8 29. Qb2 Qc7 30. Qf2 Rab8 31. Qb2
Ra8 32. Kh1 Rac8 33. Bf2 Re7 34. Rb8 Ree8 35. Rxc8 Rxc8 36. Bd4 {1/2-1/2 (36)
Schmidt,H (2318)-Almeida,R (2334) ICCF email 2017}) 16... Bxc3 17. d6 Qc6 18.
bxc3 Bb7 19. f3 Rfd8 20. Bf4 Rac8 21. Bd3 Qxc3 22. Kh1 Rc5 23. Bg3 h6 24. h3 a5
25. Be1 Nh5 26. Rab1 Qa3 27. Rxb6 Nf4 28. Qd2 Qxd3 29. Qxd3 Nxd3 30. Rxd3 Bc6
31. Ra6 Rc1 32. Kh2 Rxe1 33. Rxc6 Ra1 {0.45} *
[Event "#5 - 1.d4 Nf6 main lines"]
[Site "?"]
[Date "2022.07.18"]
[Round "?"]
[White "Stockfish Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "A40"]
[Annotator "gmmat"]
[PlyCount "58"]
1. d4 Nf6 2. c4 e6 (2... g6 {[d=65/71, 307382Mn] Stockfish goes through a
whole range of setups against this line before for settling for something
traditional!} 3. Nc3 (3. h4 {[d=61, 139808Mn] Shocking!! Stockfish's best move
on move 3 for a lot of its analysis!} Bg7 4. Nc3 c5 5. d5 d6 6. e4 e6 7. Be2
exd5 8. exd5 Nbd7 {[#]} 9. Kf1 $146 ({Predecessor:} 9. Bf4 Ne5 10. Qd2 O-O 11.
Kf1 Re8 12. b3 Bf5 13. Rd1 a6 14. g3 b5 15. cxb5 axb5 16. Bxb5 Ne4 17. Nxe4
Bxe4 18. Bxe8 Qxe8 19. Bxe5 Qxe5 20. f3 Qf5 21. g4 Qf6 22. Kg2 Qe5 23. Qe2 Qf4
24. Qxe4 Rxa2+ 25. Kh3 Qf6 26. Re1 Qc3 27. Ne2 Qd2 28. Nf4 Qc3 29. Re3 Qb2 30.
Re2 Qxb3 31. Rxa2 Qxa2 32. Qe8+ Bf8 33. Re1 Qf2 34. Qe3 Qb2 35. g5 c4 36. Rc1
Bg7 37. Rxc4 Be5 38. Rc8+ Kg7 {Maghsoodloo,P (2699)-Abdusattorov,N (2661)
Chess.com INT 2022 1-0}) 9... h5 10. g3 O-O 11. Nh3 a6 12. a4 Ng4 13. Bg5 Qb6
14. Qc1 Re8 15. a5 Qc7 16. f3 Ngf6 17. Bf4 b6 18. axb6 Qxb6 19. Nf2 Rb8 20. Na4
Qc7 21. Ra3 Nh7 22. b3 Bd4 23. Nc3 Ne5 24. Kg2 Bf5 25. Qd2 Rb6 26. Nce4 Bxe4
27. Nxe4 Qe7 28. Bd1 Nf6 29. Re1 Nxe4 30. Rxe4 Reb8 31. Re1 Qb7 32. Bc2 Rb4 {
0.50}) (3. g3 {At [d=63, 273737Mn] another shock: suddenly Stockfish wants the
g3 system!} c6 4. Bg2 d5 5. Nf3 Bg7 6. O-O O-O 7. b3 dxc4 8. bxc4 c5 9. Bb2
cxd4 10. Nxd4 Qb6 11. Qc1 Rd8 ({Relevant:} 11... Bd7 12. Nd2 Nc6 13. Nc2 Rac8
14. Rb1 Qa6 15. Ne3 Rfd8 16. Ne4 Nxe4 17. Bxe4 Qxa2 18. Bxg7 Kxg7 19. Qc3+ Kg8
20. Nd5 Be6 21. Bf3 Bxd5 22. cxd5 Na5 23. Qe3 Nc4 24. Qxe7 Nd2 25. Rxb7 Nxf3+ {
1/2-1/2 (25) Korobov,A (2675)-Vachier Lagrave,M (2760) Chartres 2022}) 12. e3
Na6 13. Bc3 Rb8 14. Nd2 Qc5 {[#]} 15. N4b3 $146 ({Predecessor:} 15. N4f3 Ne8
16. Bxg7 Nxg7 17. Nd4 Ne6 18. N2b3 Qb4 19. Rb1 Qa4 20. h4 Nxd4 21. exd4 Qxa2
22. Qc3 Qa3 23. Rfc1 Qd6 24. Ra1 Qf6 25. Re1 h5 26. Re5 Bf5 27. Rae1 Rd7 28. d5
e6 29. Nd4 Nc5 30. Nxf5 gxf5 31. Qf3 b6 32. Qxh5 Kg7 33. Qf3 Rd6 34. Bh3 Nd7
35. R5e2 Nc5 36. Re5 Nd7 37. R5e3 Nc5 38. Qf4 Rbd8 39. Rf3 Qh6 40. Qe5+ Qf6 41.
Qe3 Rh8 42. Kh2 a5 43. Qf4 Rhd8 44. Qe3 Rh8 {Lebedev,A (2195)-Urbaniak,M (2023)
LSS email 2018 1/2-1/2}) 15... Qc7 16. Qb2 Ne8 17. Bxg7 Nxg7 18. Nd4 Ne6 19.
Nb5 Qb6 20. Nb3 Nec5 21. Rfd1 Be6 22. Bf1 Rxd1 23. Rxd1 Rc8 24. Qa3 Bg4 25. Rd4
Bf3 26. h3 Bc6 27. Rd2 Ra8 28. h4 Ne4 29. Rb2 e5 30. Nd6 Qc7 31. Nxe4 Bxe4 32.
Nd2 {0.35}) (3. Nf3 Bg7 {[d=68, 200636Mn] Here Stockfish decides to go for the
8.Rb1 system against the Grunfeld: another frequent and popular choice.} 4. Nc3
O-O {A move forced by me: Stockfish (like all the other engines) would always
play 4...d5} 5. e4 d6 6. Be2 e5 7. O-O {With White committed to Nf3, Stockfish
likes the Classical variation the best.} h6 {[d=63/74, 72950Mn] Right from the
off, Stockfish goes for the very unusual 7...h6. Maybe it's not too surprising
then to see some top-level games in this line, particularly from Fabiano
Caruana!} 8. Re1 a5 ({Predecessor:} 8... Nbd7 9. Bf1 Re8 10. Rb1 a5 11. b3 b6
12. d5 Nh7 13. g3 Nc5 14. a3 a4 15. b4 Nb3 16. Be3 Bd7 17. Nd2 f5 18. Nxb3 axb3
19. Rxb3 f4 20. gxf4 Qh4 21. Qf3 exf4 22. Qxf4 Qe7 23. Qg3 g5 24. c5 Rf8 25. c6
Be8 26. f4 gxf4 27. Bxf4 Qf6 28. Ne2 Bh5 29. Bc1 Ng5 30. Nf4 Qf7 31. h4 Nf3+
32. Rxf3 Bxf3 33. Bh3 Rae8 34. Be6 Rxe6 35. dxe6 Qf6 36. Qxf3 Qxh4 37. Re2 Kh7
38. Be3 {Navara,D (2697)-Caruana,F (2792) Baku 2021 1-0}) 9. a3 {[#]} (9. dxe5
dxe5 10. Nxe5 Nxe4 11. Qxd8 Rxd8 12. Nxe4 (12. Nxf7 {[d=55, 9369Mn]} Kxf7 13.
Nxe4 a4 14. Rb1 Bf5 15. Bf3 Nc6 16. Bf4 Ne5 17. Bxe5 Bxe5 18. Re2 a3 19. bxa3
Rxa3 20. h3 Rda8 21. Rbe1 Kf8 22. Nc5 Bc3 23. Rd1 Rxa2 24. Rxa2 Rxa2 25. g4 Bb4
26. Nxb7 Be6 27. Bd5 Bxd5 28. cxd5 Rc2 29. Rd4 Be7 30. Kf1 Bh4 31. Rf4+ Ke7 32.
Re4+ Kf7 33. Re2 Rc1+ 34. Kg2 Rd1 35. Rc2 Be7 36. Rxc7 Rxd5 37. Kg3 h5 38. Rc6
Bb4 39. Kg2 {[%eval 8,55] [%wdl 23,963,14]}) {[d=53, 4551Mn]} 12... Bxe5 13.
Bxh6 Bxb2 14. Rab1 Be5 15. Bg5 Re8 16. Nf6+ Bxf6 17. Bxf6 Nd7 18. Bd4 Nb6 19.
h3 Bf5 20. Rbc1 Rad8 21. Be3 Nd7 22. g4 Be6 23. Rc3 f6 24. Rd1 Ne5 25. Rb1 Bc8
26. Kg2 g5 27. Kh2 Kf7 28. Kg3 Re7 29. Rbb3 Kg7 30. Rb2 Kf7 31. Rb1 Kg8 32. a3
Kf7 33. c5 Kg7 34. Rb5 Nc6 35. Rb2 Ne5 36. Rb1 Kf7 37. Bf1 c6 38. f4 gxf4+ 39.
Bxf4 {[%eval 65,53] [%wdl 125,873,2]}) 9... a4 $146 ({Predecessor:} 9... Nc6
10. d5 Ne7 11. Nd2 Nd7 12. Nf1 f5 13. f3 f4 14. Bd2 g5 15. b4 h5 16. Qc2 Ng6
17. bxa5 Nf6 18. h3 g4 19. hxg4 hxg4 20. fxg4 Bxg4 21. Nh2 Bxe2 22. Nxe2 Nh5
23. Qd3 Nh4 24. Qh3 Qg5 25. Nf3 Nxf3+ 26. Qxf3 Qg6 27. Kf2 Ng3 28. Ng1 Bf6 29.
Nh3 Bh4 30. Kg1 Nh5 31. Reb1 Nf6 32. Rxb7 Nxe4 33. Be1 Bd8 34. Nf2 Nc5 35. Rb2
Bh4 36. Rd1 Bxf2+ 37. Bxf2 e4 38. Qh3 e3 39. Be1 {Aguilar,N-Ramirez,H (2092)
Medellin 2007 1/2-1/2 (64)}) 10. Bf1 exd4 11. Nxd4 Nc6 12. Nxc6 bxc6 13. Nxa4
Ng4 14. h3 Ne5 15. f4 Nd7 16. Ra2 Re8 17. b3 c5 18. g3 Bb7 19. Bg2 Bc6 20. Bb2
Bxb2 21. Nxb2 Qf6 22. Qd3 Qd4+ 23. Qxd4 cxd4 24. Nd3 Nc5 25. Nxc5 dxc5 26. a4
f6 27. e5 Bxg2 28. Kxg2 Kf7 29. Kf3 Ra6 30. Ra3 f5 31. g4 Ke6 32. h4 Rea8 33.
Rf1 Rb8 34. a5 Rba8 35. h5 fxg4+ 36. Kxg4 Rxa5 37. Rxa5 {1.00}) 3... d5 (3...
Bg7 {Stockfish - like all the other engines - considers the Grunfeld to be
vastly superior to the King's Indian.[d=65/87, 435847Mn]} 4. e4 d6 5. h3 O-O 6.
Be3 {The Makogonov system without Nf3 is another very popular engine choice.}
c5 7. Nf3 cxd4 8. Nxd4 Qa5 9. Bd3 Nc6 10. O-O Be6 {[#]} ({Relevant:} 10... Nxd4
11. Bxd4 Bd7 12. Re1 Bc6 13. Rb1 Qh5 14. Be2 Qh4 15. Bf3 Nd7 16. Bxg7 Kxg7 17.
b4 Ne5 18. Be2 Rac8 19. b5 Bd7 20. Nd5 Be6 21. Qd4 Bxd5 22. cxd5 Rc5 23. b6 Qf6
24. Qe3 axb6 25. Rxb6 Ra8 26. a3 Nc4 27. Bxc4 Rxc4 28. Rxb7 Rc3 29. e5 Qxe5 30.
Qxe5+ dxe5 31. Rxe5 Rcxa3 32. Rexe7 Rf8 33. h4 Rd3 34. Red7 h5 35. g3 Kf6 36.
Kg2 Ke5 37. Re7+ Kf6 38. Red7 Ke5 39. Rb5 Kf6 40. Rb4 {Andreikin,D (2729)
-Sadhwani,R (2628) Chess.com INT 2022 0-1}) 11. Be2 $146 ({Predecessor:} 11.
Nxe6 fxe6 12. a3 Nd7 13. Rc1 Qd8 14. Bb1 Rc8 15. Ba2 Kh8 16. f4 a6 17. c5 Nxc5
18. e5 Nb8 19. b4 Ncd7 20. Ne4 Rxc1 21. Qxc1 dxe5 22. Ng5 Qc8 23. Nxe6 Re8 24.
Qe1 Bf6 25. g4 exf4 26. Bxf4 Qc3 27. Qxc3 Bxc3 28. Rc1 Be5 29. Bh6 Nc6 30. Rd1
Nb6 31. Ng5 e6 32. Nxe6 Re7 33. Rf1 Nd7 34. Kg2 Nd4 35. Ng5 Bg7 36. Nf7+ Kg8
37. Ne5+ Kh8 38. Nf7+ Kg8 39. Ng5+ Kh8 40. Bxg7+ Kxg7 {Studer,N (2558)-Anton
Guijarro,D (2703) Chess.com INT 2020 0-1 (81)}) 11... Nxd4 12. Bxd4 Rac8 13. b3
Nd7 14. Bxg7 Kxg7 15. Qc1 a6 16. a4 Qb4 17. Re1 a5 18. Bd1 f6 19. Re3 Rf7 20.
Rg3 Nc5 21. Qe3 Kh8 22. Rb1 Rcf8 23. Bg4 Bxg4 24. hxg4 Nd7 25. Nd5 Qc5 26. Qd2
b6 27. Rd1 Kg8 28. Rh3 Re8 29. Qe2 Qc6 30. Re3 Rg7 31. Rg3 Rc8 32. g5 fxg5 33.
Rxg5 e6 {0.86}) 4. cxd5 (4. Nf3 Bg7 5. Qb3 {[d=62, 172738Mn] At a slightly
higher depth, Stockfish suddenly plumps for the Russian variation 5.Qb3.} (5.
cxd5 {via the 3.Nf3 Bg7 move order!} Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb1 O-O 9.
Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. O-O Bg4 13. Be3 Nc6 14. d5 Bxf3 ({
Relevant:} 14... Na5 15. Bg5 Qa3 16. Re1 Bc3 17. Qd3 Rfc8 18. Red1 b6 19. h3
Bd7 20. Rdc1 f6 21. Bd2 Bb2 22. Rxc8+ Rxc8 23. Qa6 Qa2 24. Rxb2 Qxb2 25. Qxa7
Qa1+ 26. Kh2 Qa4 27. Bd1 Qxd1 28. Qxd7 Qc2 29. Qe6+ Kh8 30. d6 exd6 31. Qxf6+
Kg8 32. Bh6 Qc7 33. Qe6+ Kh8 34. Ng5 {1-0 (34) Carlsen,M (2863)-Nepomniachtchi,
I (2784) chess24.com INT 2020}) 15. Bxf3 Ne5 16. Rxb7 a5 17. Be2 Rfe8 18. Bc5
a4 19. Bb5 Rec8 20. Bxe7 a3 21. d6 Qe6 22. d7 a2 {[#]} 23. Qd5 $146 ({
Predecessor:} 23. dxc8=Q+ Qxc8 24. Qd8+ Qxd8 25. Bxd8 Rxd8 26. Ra7 Rb8 27. Ra5
Bf6 28. Rd1 h5 29. h3 Nc4 {1/2-1/2 (29) Slyusar,V (2301)-Palladino,M (2179)
ICCF email 2020}) 23... Nxd7 24. Qxe6 fxe6 25. Bxd7 a1=Q 26. Bxe6+ Kh8 27. Bxc8
Qa6 28. Rc1 Qe2 29. Rd7 h5 30. Rdd1 Qxe4 31. Re1 Qxe1+ 32. Rxe1 Rxc8 33. Kf1
Re8 34. Re3 Kg8 35. Bg5 Rxe3 36. fxe3 Kf7 37. Kf2 Ke6 38. Kf3 Kf5 39. Bf4 Bf8
40. Bc7 Bg7 41. Bg3 Bc3 42. e4+ Ke6 43. h3 Bb2 44. Bc7 Bg7 45. Bf4 Bf8 46. Bc1
Ke5 {0.28}) 5... dxc4 6. Qxc4 O-O 7. e4 a6 8. Be2 b5 9. Qb3 c5 10. dxc5 Be6 11.
Qc2 Nbd7 12. Be3 Rc8 13. Rd1 b4 {13...Qa5 is the hot move.} 14. Nd5 Bxd5 15.
exd5 Nxc5 16. O-O Nce4 17. Qd3 ({Relevant:} 17. Qb3 Qd6 18. g3 a5 19. Bf4 Qc5
20. Ne5 a4 21. Qxa4 Nxd5 22. Nd7 Nxf4 23. Nxc5 Nxe2+ 24. Kg2 Nxc5 25. Qxb4 e5
26. Qc4 Nd4 27. Rc1 Bh6 28. b4 Bxc1 29. Rxc1 Na4 30. Qxc8 Rxc8 31. Rxc8+ Kg7
32. Ra8 Nb6 33. Rb8 Nd5 34. b5 Nc3 35. b6 Nxa2 36. b7 Nc6 37. Rc8 Nab4 38. Kf3
f5 39. Ke2 e4 40. Kd2 Kf6 41. Kc3 Nd5+ 42. Kc4 Nde7 43. Kc5 Ne5 44. Rc7 N7c6
45. Rxc6+ {1-0 (45) Esipenko,A (2723)-Navara,D (2693) Chess.com INT 2022})
17... Qd6 18. g3 Rfd8 19. Bf4 Qxd5 20. Qxa6 Qa8 21. Qxa8 Rxa8 22. Rxd8+ Rxd8
23. Ne5 Nd5 24. Rd1 Rd6 25. Nxg6 Nxf4 26. Nxf4 Rxd1+ 27. Bxd1 Bxb2 28. Nd3 Bc3
{[#]} 29. Kf1 $146 ({Predecessor:} 29. Kg2 Kg7 30. f4 h6 31. g4 f5 32. gxf5 Nd6
33. Kf3 Kf6 34. Nf2 Kxf5 35. Ng4 Kg6 36. Bc2+ Kg7 37. Ne3 e6 38. Bb3 Nf5 39.
Ke4 {1/2-1/2 (39) Giri,A (2797)-Grischuk,A (2810) Tbilisi 2015 CBM 165 [CB]})
29... e6 30. Ke2 Kg7 31. Bb3 Nd6 32. Ba4 Kf6 33. f4 h5 34. Nc5 Ke7 {0.34, but
this will simply be drawn.}) 4... Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 {The Be3
system was a favourite of AlphaZero (it won some lovely queenless middlegames
from Stockfish 8) and is also favoured by many other engines.} c5 8. Qd2 Qa5 9.
Rc1 cxd4 10. cxd4 Qxd2+ 11. Bxd2 O-O 12. Nf3 Bg4 {The main line 12...Bg4
scores better than 12...e6.} 13. Be3 Rd8 ({Relevant:} 13... Nc6 14. d5 Bxf3 15.
gxf3 Nd4 16. Bh3 f5 17. Rc7 Nxf3+ 18. Ke2 Nd4+ 19. Bxd4 Bxd4 20. exf5 gxf5 21.
Rg1+ Kh8 22. Rxe7 Rae8 23. Re6 Rxe6+ 24. dxe6 Rf6 25. Kd3 Bxf2 26. Rf1 Bc5 27.
Bxf5 Kg7 28. Ke4 Rh6 29. h3 Rh4+ 30. Kd5 b6 31. Bg4 h5 32. Rf7+ Kg6 33. Bf5+
Kg5 34. Be4 Rxh3 35. e7 Bxe7 36. Rxe7 Ra3 37. Ke5 Rxa2 38. Rg7+ Kh4 39. Kf4 Kh3
40. Rg1 b5 41. Rh1+ Rh2 42. Rb1 a6 43. Rb3+ {Carlsen,M (2863)-Ding,L (2791)
chess24.com INT 2020 1/2-1/2 (64)}) 14. Be2 Na6 15. Bxa6 bxa6 16. Ne5 Bxe5 17.
dxe5 {[#]} Rac8 $146 ({Predecessor:} 17... Be6 18. a4 Rdb8 19. f3 Rb4 20. Bg5
Rxa4 21. Bxe7 Ra2 22. O-O Re8 23. Bf6 a5 24. Rc7 a6 25. Ra7 Rc8 26. Rd1 a4 27.
Rxa6 Bb3 28. h4 Bxd1 {0-1 (28) Sundqvist,C-Lahdenmaeki,L (1986) ICCF email 2019
}) 18. Rxc8 Rxc8 19. h4 Kf8 20. f3 Be6 21. a4 a5 22. Kf2 Ke8 23. Rb1 Bd7 24.
Bg5 Bc6 25. Bd2 Bxa4 26. Bxa5 Bd7 27. Ke3 Rc5 28. Rb8+ Rc8 29. Rb7 Bc6 30. Rb1
h6 31. g4 g5 32. Rh1 Rb8 33. hxg5 Rb3+ 34. Kd4 hxg5 35. e6 fxe6 36. Rh8+ Kf7
37. Rh7+ Kg6 38. Rxe7 Rxf3 39. Rxe6+ Rf6 40. Rxf6+ Kxf6 {0.30... but just a
dead draw of course}) (2... c5 3. d5 b5 {[d=70, 929942Mn] Again Stockfish
surprises by heading for a Blumenfeld-type situation! See 2...e6 3.Nf3 c5 4.d5
b5 for more details! The line here is} 4. cxb5 a6 5. e3 e6) (2... e5 {[d=62/81,
105509Mn]} 3. dxe5 Ng4 {Book exit} 4. e3 Nxe5 5. f4 {A line that first came to
prominence in the TCEC when it was played in the Season 17(!) SuperFinal. Both
games ended in draws but Black (Stockfish in particular) was suffering
enormously the whole game.} Nec6 6. Nc3 ({Relevant:} 6. Ne2 Bc5 (6... d6 7. b3
Bg4 8. Nbc3 Be7 9. g3 Bf6 10. Bd2 Bf3 11. Rg1 h6 12. Kf2 Bh5 13. g4 Bg6 14. Rg2
O-O 15. Rc1 Nd7 16. Ng3 Nc5 17. Kg1 a5 18. Nd5 Ne4 19. a3 Nxd2 20. Qxd2 Kh8 21.
Bd3 Bh4 22. Qc3 Ne7 23. Nf5 Nxf5 24. gxf5 c6 25. fxg6 cxd5 26. cxd5 Bf6 27. Qc4
fxg6 28. Qe4 Qe8 29. Qxg6 Qxe3+ 30. Kh1 Qxc1+ 31. Rg1 Qxg1+ 32. Kxg1 Kg8 33.
Bf5 Ra7 34. Qh7+ Kf7 35. Be6+ Ke7 36. Kg2 b6 37. Qc2 Rb8 38. Bg4 Kd8 39. Qc6
Ke7 40. a4 Rab7 41. Qc1 Bd4 42. Qc2 Kf8 43. Be6 Bf6 44. Bc8 Ra7 45. Kf3 Ke8 46.
Bf5 Kd8 47. Qc6 Ke7 48. Qc4 Kf8 49. Be6 Rab7 50. Qc6 Ke7 51. Qc4 Kf8 52. Qc6
Ke7 53. Bh3 Ra7 54. Qc2 Kd8 55. Qc6 Be7 56. Qc1 Bf6 57. Qc6 Ke7 58. Kg2 h5 59.
Qc1 Kd8 60. Qa3 Ke7 61. Qc1 Kd8 62. Qc6 Ke7 63. Kf3 Rab7 64. Qc1 Kd8 65. Qc6
Ke7 66. Ke4 g5 67. fxg5 Bxg5 68. Be6 Bf6 69. Qc1 Rf8 70. Qc2 Be5 71. Ke3 Rh8
72. h4 Ra7 73. Ke2 Rb7 74. Kd2 Ra7 75. Ke2 Rb7 76. Ke3 Ra7 77. Kd2 Rb7 78. Ke2
Ra7 79. Ke3 Rb7 80. Kd2 Ra7 81. Kd1 Rb7 82. Ke2 Ra7 83. Kd1 Rb7 84. Ke1 Kf6 85.
Qf2+ Kg7 86. Qc2 Kf6 87. Qf2+ Kg7 88. Kd1 Rh6 89. Qc2 Re7 90. Qc8 Rg6 91. Qg8+
Kh6 92. Qf8+ Reg7 93. Bf5 Rg1+ 94. Ke2 R1g2+ 95. Ke1 Rg1+ 96. Kf2 R1g2+ 97. Kf1
Rg1+ 98. Kf2 R1g2+ 99. Ke3 R2g3+ 100. Kd2 Rg2+ 101. Kc1 Rg1+ 102. Kc2 R1g2+
103. Kd3 R2g3+ 104. Kc2 Rg2+ 105. Kd1 Rg1+ 106. Kd2 R1g2+ 107. Ke1 Rg1+ 108.
Ke2 R1g2+ 109. Ke3 R2g3+ 110. Kf2 {adjudication 1/2-1/2 (110) LCZero v0.
24-sv-t60-3010 (3840)-Stockfish 20200407DC (3851) https://tcec-chess.com/
#season 2020}) 7. Nec3 O-O 8. Bd3 Qh4+ 9. g3 Qh3 10. Kf2 Re8 11. Nd5 Na6 12.
Nbc3 Ncb4 13. Bf1 Qh6 14. a3 Nxd5 15. cxd5 Qb6 16. Qd3 Be7 17. b4 c5 18. b5 c4
19. Qxc4 Nc5 20. a4 Qh6 21. Ba3 b6 22. Bg2 d6 23. Bxc5 bxc5 24. h4 Bd8 25. a5
Qf6 26. Ra2 Bd7 27. Bh3 Qe7 28. Bxd7 Qxd7 29. b6 axb6 30. axb6 Rxa2+ 31. Nxa2
Bxb6 32. Nc3 h5 33. Qb5 Qe7 34. Re1 Bc7 35. Re2 Rb8 {Grischuk,A (2745)
-Ponkratov,P (2631) Chess.com INT 2022 0-1 (68)}) 6... d6 {[#]} 7. b3 $146 ({
Predecessor:} 7. Nf3 g6 8. b3 Bg7 9. Bb2 a5 10. a3 Na6 11. Bd3 Nc5 {1/2-1/2
(11) Bluebaum,M (2642)-Nisipeanu,L (2652) Terme Catez 2022}) 7... g6 8. Bb2 (8.
Be2 Bg7 9. Bb2 a5 10. Bf3 Na6 11. Nge2 Nc5 12. O-O Nb4 13. Nc1 O-O 14. a3 Nba6
15. b4 Nd7 16. Nd3 axb4 17. axb4 Nb6 18. b5 Nxc4 19. Qc1 Nc5 20. Nxc5 Rxa1 21.
Bxa1 dxc5 22. Nd5 Nb6 23. Rd1 Nxd5 24. Rxd5 Qh4 25. Bxg7 Kxg7 26. Rxc5 c6 27.
bxc6 bxc6 28. Rxc6 Be6 29. h3 Qg3 30. Rc5 h6 31. Qb2+ Kh7 32. Qf2 Qxf2+ 33.
Kxf2 Rc8 34. Rxc8 Bxc8 35. e4 g5 36. f5 Kg7 37. Ke3 Kf6 38. Kd4 Ba6 39. Kd5 Ke7
40. e5 f6 41. Ke4 Bf1 42. e6 h5 43. g4 h4 44. Ke3 Kd6 45. Bd1 Bb5 46. Be2 Ba4
47. Bd3 Kd5 48. Be4+ Ke5 49. Bd3 Bc6 50. Be2 Bg2 51. Bf3 Bf1 52. Be2 Bg2 53.
Bf3 Bf1 54. Kf2 Bb5 55. Be2 Bc6 56. Bf3 Ba4 57. Ke3 Kd6 58. Kd4 Bb5 59. Bg2 Be2
60. Ke4 Ba6 61. Ke3 Bb5 62. Bb7 Bf1 63. Kf2 Bb5 64. Be4 Ke5 65. Ke3 Kd6 66. Bf3
Be8 67. Kd4 Bb5 68. Ke3 Ba4 69. Be2 Bc6 70. Bd1 Be8 71. Be2 Bc6 72. Bd3 Bg2 73.
Bc4 Bc6 74. Bf1 Ba4 75. Kd4 Bb3 {adjudication 1/2-1/2 (75) Stockfish
20200407DC (3851)-LCZero v0.24-sv-t60-3010 (3840) https://tcec-chess.com/
#seaso 2020}) 8... Bg7 9. Qd2 O-O 10. Be2 a5 11. Bf3 Na6 12. Nge2 Nc5 13. O-O
Nb4 14. Nd1 Bxb2 15. Qxb2 Qe7 16. a3 Nba6 17. Qc3 c6 18. Nf2 Re8 19. e4 f5 20.
exf5 Bxf5 21. b4 Na4 22. Qb3 Nb6 23. bxa5 Nd7 24. Ng3 Nac5 25. Qb4 Qh4 26. Nxf5
gxf5 27. g3 Qd8 28. Bg2 Rxa5 29. Bh3 Ra4 30. Qb1 Rxc4 31. Bxf5 Qe7 32. Qa2 Qe2
33. Rfe1 Qxa2 34. Rxe8+ Kf7 35. Rxa2 Kxe8 36. Bxh7 Kf7 37. Nh3 Nf8 38. Ng5+ Kf6
39. Bc2 Rc3 40. Kg2 d5 41. Nf3 {1.00}) 3. Nf3 (3. g3 {[d=64/76, 237907Mn]} Bb4+
{Stockfish prefers this move order although there doesn't seem to be a big
difference with 3...d5 and 4...Bb4+} (3... d5 4. Bg2 Bb4+ 5. Bd2 {is
Stockfish's main reply with similar play to 3...Bb4+. At [d=65/75, 234114Mn]
however, Stockfish sudenly switched to 5.Nd2 (before switching back to 5.Bd2)}
(5. Nd2 O-O 6. a3 ({Relevant:} 6. Ngf3 b6 7. O-O Bb7 8. b3 Nbd7 9. Bb2 Rc8 10.
Rc1 Qe7 11. e3 c5 12. cxd5 Bxd5 13. Qe2 cxd4 14. Nxd4 Bxg2 15. Kxg2 Ne5 16. e4
Rfd8 17. Rxc8 Rxc8 18. f4 Ng6 19. Nc4 Qb7 20. a3 Bc5 21. Re1 b5 22. Nd2 a6 23.
N2f3 Ne7 24. Qd3 h6 25. Re2 Bb6 26. h3 Rd8 27. Qc2 Rc8 28. Qd3 Rd8 29. Qc2 h5
30. h4 Ng4 31. Qc3 Nf6 32. Qc2 Rc8 33. Qd3 Ng4 34. b4 Qd7 35. Rd2 Rc4 {
Radjabov,T (2753)-Ding,L (2806) Madrid 2022 1/2-1/2}) 6... Bxd2+ 7. Bxd2 dxc4
8. Nf3 Nc6 9. e3 b5 10. b3 Bb7 11. O-O Ne7 12. bxc4 bxc4 13. Qc2 a5 14. Rfe1 c5
{[#]} 15. Qxc4 $146 ({Predecessor:} 15. dxc5 Rc8 16. Bc3 Be4 17. Qb2 Rxc5 18.
Bxf6 gxf6 19. Qxf6 Ng6 20. Qxd8 Rxd8 21. Nd4 Bxg2 22. Kxg2 e5 23. Nf3 f6 24.
Rec1 Ne7 25. Rc2 Nd5 26. Rb1 c3 27. e4 Nc7 28. Rbc1 Rd3 29. Ne1 Rd4 30. Rxc3
Rxc3 31. Rxc3 Nb5 32. Rb3 Nd6 33. f3 Nc4 34. Rc3 Kf7 35. Kh3 Nd2 36. Nc2 Ra4
37. Kg2 Kg6 38. Kf2 Nb1 39. Rb3 Nd2 40. Rd3 Nc4 41. Ke2 f5 42. exf5+ Kxf5 43.
Rc3 Ke6 44. Kd3 Nb2+ {Yankelevich,L (2420)-Arnold,M (2260) Riga 2018 1-0})
15... Ne4 16. Red1 Nxd2 17. Rxd2 cxd4 18. Qxd4 Qc7 19. Rb1 Rac8 20. Qe5 Bd5 21.
Qxc7 Rxc7 22. Ne5 Rfc8 23. e4 Bb7 24. h4 Ng6 25. Nxg6 hxg6 26. Rb5 a4 27. e5
Bxg2 28. Kxg2 Rc3 29. Ra5 Rxa3 30. Kh3 Rb8 31. Ra7 Rf8 32. Rd4 Ra2 33. f4 Ra3
34. Rdxa4 Rxa4 35. Rxa4 Rb8 36. Ra2 Kf8 37. Rc2 Rd8 38. Kg4 Rd3 {0.20})) 4. Bd2
Be7 5. Bg2 d5 6. Nf3 c6 7. Qc2 b6 8. O-O O-O 9. Ne5 (9. cxd5 {Stockfish's
choice through the 3...d5 4.Bg2 Bb4+ move order!} cxd5 10. Rc1 Bb7 11. Ne5 Ne4
{[#]} ({Relevant:} 11... Nfd7 12. Nd3 Nc6 13. e3 Rc8 14. Nc3 Na5 15. Qd1 Nc4
16. Be1 Nd6 17. a4 a5 18. Nb5 Rxc1 19. Rxc1 Qb8 20. b4 Nc4 21. bxa5 bxa5 22. e4
Ndb6 23. exd5 Bxd5 24. Bxd5 exd5 25. Ne5 Qb7 26. Bxa5 Bg5 27. Bxb6 Bxc1 28. Bc5
Ra8 29. Nxc4 dxc4 30. Qxc1 Rxa4 31. Nc3 Ra5 32. h4 Qa8 33. Qb2 Ra1+ 34. Nb1 c3
35. Qb3 h6 36. d5 Qc8 37. Kg2 Qxc5 38. Nxc3 Ra8 39. Ne2 Rd8 40. Nf4 Qd4 41. h5
{Ding,L (2791)-Carlsen,M (2863) chess24.com INT 2020 0-1}) 12. a3 $146 ({
Predecessor:} 12. Be1 Nd7 13. Nc6 Bxc6 14. Qxc6 Rc8 15. Qxc8 Qxc8 16. Rxc8 Rxc8
17. Nc3 Nxc3 18. Bxc3 b5 19. Rc1 Nb6 20. Bd2 Rxc1+ 21. Bxc1 Kf8 22. e3 Ke8 23.
Bf1 a6 24. Bd3 g6 25. Kf1 Kd7 26. Ke2 Kc6 27. b3 a5 28. Bd2 a4 29. f3 Ba3 30.
g4 Be7 31. Be1 Na8 32. Bg3 Nb6 33. h4 axb3 34. axb3 b4 35. g5 Bd6 36. Be1 Nc8
37. e4 Na7 38. Ke3 Kb6 39. exd5 exd5 40. f4 Nc6 41. f5 Na5 {Kulpruethanon,T
(2294)-Habla,J (2209) Phuket 2022 1/2-1/2}) 12... Nd6 13. Qd1 Nd7 14. Nc6 Bxc6
15. Rxc6 Nf6 16. Be1 Qd7 17. Rc1 Nfe4 18. e3 Rfc8 19. Nc3 Nxc3 20. Bxc3 g6 21.
h4 h5 22. a4 a5 23. Bf1 Rc6 24. Bd3 Rac8 25. Qb3 R8c7 26. Rc2 Rc8 27. Kg2 R8c7
28. Ba6 Qd8 29. Be2 Qc8 30. Rac1 Qb7 31. Be1 Rc4 32. Bd3 Rxc2 33. Rxc2 Rc6 34.
Bc3 Bf6 35. Rc1 Rc8 36. Qc2 Qd7 37. Qd1 Be7 38. Ba6 Ra8 39. Bf1 Rc8 {0.17})
9... Bb7 10. Bf4 Nbd7 11. Rd1 Nh5 12. Bd2 Nhf6 13. cxd5 cxd5 14. Nc6 Qe8 15.
Nxe7+ Qxe7 16. Rc1 Rfc8 17. Nc3 Ne4 18. Be1 {[#]} Nxc3 $146 ({Predecessor:}
18... a5 19. Qd1 {1/2-1/2 (19) Fluit,J (2327)-Engelhard,C (2336) ICCF email
2020}) 19. Bxc3 Nf6 20. Qd1 a5 21. Rc2 Ne4 22. Rac1 Ba6 23. Be1 Rxc2 24. Rxc2
h6 25. h3 Nd6 26. g4 Rc8 27. Bf1 Qd7 28. Bd2 Rxc2 29. Qxc2 Qc8 30. Qxc8+ Nxc8
31. b3 Kf8 32. e3 Bxf1 33. Kxf1 Ke8 34. f3 Nd6 35. Ke2 f5 36. Be1 Nf7 37. Bg3
Kd7 38. Bf4 Kc6 {0.01}) (3. Nc3 Bb4 {[d=65, 176554Mn]} (3... c5 {[d=64/80,
272676Mn]} 4. d5 d6 {Just like the other engines, Stockfish wants to avoid the
flick-knife 4..exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+. Allowing 5.e4 and
allowing White to recapture on d5 with the e-pawn with a solid structural plus
is still a better choice!}) 4. e3 {Like all the other engines, Stockfish
considers Rubinstein's 4.e3 to give the best chance of a (very slight)
advantage.} (4. a3 {[d=61, 962606Mn]} Bxc3+ 5. bxc3 b6 6. e4 {Stockfish's main
line is the same as Koivisto's! Both engines want to clarify the situation as
soon as possible!} ({Relevant:} 6. f3 Nc6 7. e4 Na5 8. Nh3 d6 9. Bg5 h6 10. Bh4
Qd7 11. Bxf6 gxf6 12. Nf4 h5 13. Bd3 Ba6 14. Qe2 Qa4 15. O-O Bxc4 16. Rfb1 c5
17. Bc2 Qc6 18. Qf2 h4 19. d5 Qd7 20. Bd3 Bxd3 21. Nxd3 O-O-O 22. h3 e5 23. a4
Rdg8 24. Rb5 Rg3 25. Kh2 Rhg8 26. Ne1 f5 27. Rab1 Nc4 28. a5 Na3 29. axb6 Nxb5
30. bxa7 Qxa7 31. Rxb5 Kc7 32. exf5 Rb8 33. Rxb8 Qxb8 34. Qd2 Qb1 35. Nd3 Rg8 {
Grischuk,A (2742)-Caruana,F (2781) Chess.com INT 2022 0-1}) 6... Nxe4 7. Qg4 f5
8. Qxg7 Qf6 9. Qxf6 Nxf6 10. Nf3 {[#]} Ba6 $146 ({Predecessor:} 10... Rg8 11.
Nd2 Nc6 12. f3 Na5 13. Kf2 Ba6 14. a4 Rc8 15. Ba3 c5 16. Rc1 Kf7 17. h3 f4 18.
dxc5 bxc5 19. Re1 d6 20. Bd3 Rg7 21. Rhg1 Rcg8 22. Bc1 e5 23. Ba3 Ke6 24. Bc2
Nh5 25. Bd3 Ng3 26. Rd1 Bb7 27. Rb1 Bc6 28. Bc2 Nf5 29. Bxf5+ Kxf5 30. Bc1 h5
31. Rb2 h4 32. Ra2 Bd7 33. Ba3 Be6 {0-1 (33) Unal,A-Holroyd,K ICCF email 2010})
11. Bg5 Ne4 12. h4 Nc6 13. d5 Nd8 14. Nd4 O-O 15. dxe6 Nxe6 16. Nxe6 dxe6 17.
Bf4 e5 18. Bxe5 f4 19. Bd3 Rae8 20. Bxe4 Rxe5 21. f3 Bxc4 22. Kf2 Kg7 23. Rad1
Be6 24. Rd4 Ra5 25. Ra1 Rf6 26. Bd3 Rc5 27. Rc1 Bf7 28. Bf1 a5 29. Bd3 Rd6 30.
Rxd6 cxd6 31. g3 fxg3+ 32. Kxg3 Bh5 33. Kf2 b5 34. Ke3 Bg6 35. Kd2 Kh6 {-0.22})
(4. Qc2 {[d=76, 345155Mn] From the very start, Stockfish only considers 1 line.
} O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Nf3 b6 8. Bg5 dxc4 9. Qxc4 Ba6 10. Qa4 h6 11.
Bh4 c5 12. dxc5 bxc5 {[#]} 13. Nd2 $146 ({Relevant:} 13. Rd1 Qb6 14. Bxf6 gxf6
15. e3 Bxf1 16. Kxf1 Nc6 17. Rb1 Rad8 18. Ke2 Rd5 19. Rhc1 Rb8 20. b4 Ne5 21.
Nxe5 Rxe5 22. Kf1 Qb5+ 23. Qxb5 Rxb5 24. Ke2 cxb4 25. Rxb4 Rxb4 26. axb4 Rb5
27. Rc4 a5 28. bxa5 Rxa5 29. g3 Kg7 30. Rg4+ Kf8 31. Rc4 {1/2-1/2 (31) Giri,A
(2761)-So,W (2776) Stavanger 2022}) 13... Qd4 14. Qxd4 cxd4 15. Nb3 Rc8 16. g4
Rc2 17. Bxf6 gxf6 18. Nxd4 Rxb2 19. Bg2 Bb7 20. O-O Bxg2 21. Kxg2 Nd7 22. Rfb1
Rd2 23. Rd1 Rxd1 24. Rxd1 Ne5 25. h3 Rd8 26. e3 h5 27. gxh5 Nc6 28. Rd2 Nxd4
29. Rxd4 Rxd4 30. exd4 Kh7 31. Kg3 Kh6 32. Kh4 f5 33. a4 a5 34. f3 f6 35. f4
Kh7 36. h6 Kxh6 37. Kg3 Kh5 38. Kg2 Kh6 39. Kf3 Kh5 40. Kg3 Kh6 41. Kf2 {0.00})
(4. f3 {[d=68, 149188Mn]} c5 {Just like Komodo Dragon, Stockfish only really
considers this move against 4.f3} 5. d5 d6 6. e4 b5 7. Bd2 ({Relevant:} 7. Nge2
bxc4 8. Nf4 e5 9. Nfe2 Nbd7 10. g4 h5 11. Ng3 g6 12. Bxc4 Bxc3+ 13. bxc3 Qa5
14. Qd3 Nb6 15. Bb5+ Bd7 16. Bxd7+ Nbxd7 17. g5 h4 18. Ne2 Nh5 19. O-O Rb8 20.
f4 Qa4 21. f5 gxf5 22. Rxf5 c4 23. Qe3 Qd1+ 24. Rf1 Qd3 25. Qf2 Qxe4 26. Qxf7+
Kd8 27. Qf3 Qxf3 28. Rxf3 Rb5 29. Be3 Rxd5 30. Rb1 Ra5 31. Rb7 Ke7 32. Rxa7
Rxa7 33. Bxa7 Ra8 34. Bf2 Rxa2 35. Kf1 Nf8 36. Bxh4 Ng6 {Vachier Lagrave,M
(2761)-So,W (2778) Berlin 2022 0-1}) 7... Bxc3 8. Bxc3 b4 9. Bd2 O-O 10. Be3
exd5 11. cxd5 Nfd7 12. Ne2 {[#]} Nb6 $146 ({Predecessor:} 12... f5 13. exf5
Rxf5 14. Ng3 Re5 15. Kf2 Qh4 16. Qd2 Nf6 17. Rc1 Ba6 18. b3 Nxd5 19. Rc4 Qe7
20. Re4 Qe6 21. Bf4 Nxf4 22. Qxf4 Bxf1 23. Rxe5 dxe5 24. Qe4 Nc6 25. Rxf1 c4
26. Nf5 cxb3 27. Qxc6 Qxc6 28. Ne7+ Kf8 29. Nxc6 bxa2 30. Nxb4 Rb8 31. Ra1 Rxb4
32. Rxa2 Rb7 33. Ke3 Ke7 34. Ra6 {1/2-1/2 (34) Aronian,L (2758)-Carlsen,M
(2876) Douglas 2019}) 13. Ng3 f5 14. exf5 Bxf5 15. Nxf5 Rxf5 16. Bd3 Re5 17.
Be4 N8d7 18. O-O Nf6 19. Bf4 Re8 20. Bg5 Re5 21. Bf4 {0.00}) 4... O-O (4... c5
{[d=69/87, 107645Mn]} 5. Nge2 d5 6. a3 Ba5 {One of the lines that caused me
headaches in analysis for many years though I never had to face it!} 7. dxc5
dxc4 8. Bd2 b6 ({Relevant:} 8... Nbd7 9. Ng3 Nxc5 10. Bxc4 Bc7 11. Qc2 O-O 12.
O-O b6 13. Nb5 Bb8 14. b4 Ncd7 15. Rac1 a6 16. Nd4 Bb7 17. Be2 Bxg3 18. hxg3
Rc8 19. Qb2 b5 20. Rxc8 Qxc8 21. Rc1 Qa8 22. f3 Nb6 23. e4 Rc8 24. Nb3 Rxc1+
25. Qxc1 Qc8 26. Nc5 Nfd7 27. Nxb7 Qxb7 28. Qc3 Qc8 29. Qxc8+ Nxc8 30. a4 Nd6
31. a5 f6 32. Kf2 Kf7 33. Ke3 Ne5 34. Kd4 Nb7 35. f4 Nc6+ 36. Kd3 Nd6 37. Bc3
e5 38. Bd1 {Wojtaszek,R (2696)-Moranda,W (2630) Kruszwica 2022 1/2-1/2}) 9. Ng3
O-O 10. Bxc4 bxc5 11. Qc2 Bb7 12. O-O Nbd7 13. Rad1 {[#]} Ne5 $146 ({
Predecessor:} 13... h5 14. Nge4 Qc7 15. Nxf6+ Nxf6 16. f3 Qe5 17. Ne2 Bxd2 18.
Qxd2 Bd5 19. Bxd5 exd5 20. b4 c4 21. Nc3 Rfd8 22. Rfe1 Rab8 23. Qd4 Qe7 24. b5
Rd7 25. a4 Qb4 26. Ra1 Qa5 27. Ne2 Qc7 28. Nc3 Qa5 29. Ne2 Qc7 30. Nc3 Qa5 31.
Ne2 Qc7 32. Reb1 Rd6 33. a5 Re6 34. Nf4 Rd6 35. Ne2 Re6 36. Nc3 Qe7 37. Re1 Qc7
38. Reb1 Qe7 39. Re1 Qc7 40. Ra2 Rbe8 41. h4 Kh7 42. Ree2 Kg8 43. Ra1 {Nihal,S
(2620)-Keymer,V (2591) Biel 2021 1/2-1/2}) 14. Be2 c4 15. Nce4 Bxe4 16. Nxe4
Nxe4 17. Qxe4 Bxd2 18. Qxe5 Rc8 19. Qe4 c3 20. bxc3 Rxc3 21. Qb4 Rd3 22. Bxd3
Bxb4 23. Bxh7+ Kxh7 24. Rxd8 Rxd8 25. axb4 Rb8 26. Ra1 Rxb4 27. h3 g5 28. Ra6
Rb7 29. Kh2 Kg6 30. Kg3 Kf6 31. Ra5 Rc7 32. Kg4 Rc4+ 33. Kf3 Rc7 34. Ra4 Kg6
35. g4 Rc1 36. Kg3 Re1 37. Ra3 a6 38. Rxa6 Re2 39. Kf3 Re1 40. Kg2 Kf6 41. Ra5
Re2 42. Ra7 Rb2 43. Kg3 Re2 44. Ra3 Re1 45. f4 Kg6 46. fxg5 Kxg5 {0.33 (though
a dead draw of course)}) 5. Nf3 b6 (5... c5 6. Bd3 d5 7. cxd5 cxd4 (7... exd5 {
[d=70, 107875Mn]} 8. dxc5 Bg4 9. O-O Bxc5 10. h3 Bh5 11. g4 Bg6 12. Bxg6 {[#]}
fxg6 $146 ({Predecessor:} 12... hxg6 13. g5 Ne4 14. Qxd5 Nxc3 15. Qxc5 Ne4 16.
Qe5 Re8 17. Qf4 Nc6 18. a3 Qd5 19. h4 Rad8 20. Ne1 Nc5 21. b4 Re4 22. Qg3 Nb3
23. Rb1 Ncd4 24. exd4 Nxd4 25. Rb2 Rxe1 26. Rxe1 Nf3+ 27. Kf1 Nxe1 28. Qb3 Qh1+
29. Ke2 Nd3 {0-1 (29) Ozturk Orenli,K (2235)-Lomineishvili,M (2364) Chakvi 2015
}) 13. g5 Ne4 14. Nxe4 dxe4 15. Qxd8 Rxd8 16. Nd2 Re8 17. a3 Bf8 18. b4 a5 19.
bxa5 Rxa5 20. h4 Rd5 21. a4 Nc6 22. Rb1 Ra5 23. Rxb7 Rxa4 24. Bb2 Ne7 25. Kh2
Nf5 26. Kh3 Rd8 27. Bc3 Ra2 28. Nxe4 Ra4 29. Bd4 Nxd4 30. exd4 Raxd4 31. Re1
Rb4 32. Rc7 Rdd4 33. f3 Rd3 34. Kg2 Rb2+ 35. Kg3 Rb8 36. Rec1 Rbb3 37. Rf1 Rd8
38. Rf2 Ba3 39. Kg2 Rb4 40. Rfc2 Rb2 41. R7c3 Rxc2+ 42. Rxc2 Kf7 43. Kh3 Be7
44. Kg4 Rd3 45. Rc7 Ke6 46. Rc8 Kf7 47. Kg3 {0.21}) 8. exd4 exd5 9. O-O h6 ({
Relevant:} 9... Bg4 10. h3 Bh5 11. Bg5 Bxc3 12. bxc3 Nbd7 13. c4 dxc4 14. Bxc4
h6 15. Bh4 Re8 16. g4 Bg6 17. Re1 Qa5 18. Bxf6 gxf6 19. Nh4 Nf8 20. Rxe8 Rxe8
21. Qf3 Re1+ 22. Rxe1 Qxe1+ 23. Bf1 Be4 24. Qe3 Qb1 25. f3 Bd5 26. Kf2 Qxa2+
27. Kg3 Be6 28. Bd3 Qa1 29. Be4 Qd1 30. Bxb7 a5 31. Bc6 a4 32. Qa3 Qe1+ 33. Kg2
Qxh4 34. d5 Ng6 35. Qe3 Bxd5 36. Bxd5 Kg7 37. Bc6 a3 38. Bd5 Qg5 39. Qxg5 {
Naiditsch,A (2654)-Salem,A (2690) Sharjah 2022 0-1}) 10. Ne5 Nc6 11. Bc2 {[#]}
Be6 $146 ({Predecessor:} 11... Re8 12. Bf4 Be6 13. Qd3 Rc8 14. Rac1 Ne7 15. Ba4
Nc6 16. a3 Bf8 17. h3 Qb6 18. Bxc6 bxc6 19. Na4 Qb5 20. Qxb5 cxb5 21. Nc5 Bf5
22. b4 g5 23. Bh2 Ne4 24. Rfd1 f6 25. Ned3 Nd6 26. Ra1 Nc4 27. Kf1 a5 28. g4
Bg6 29. Bg3 a4 30. Ra2 h5 31. Nd7 Kf7 32. Kg1 hxg4 33. hxg4 Be4 34. N3c5 Bf3
35. Rf1 Bxg4 36. f4 gxf4 37. Rxf4 f5 38. Raf2 Kg6 39. Ne5+ Nxe5 40. dxe5 Rxc5
41. bxc5 {Ehlvest,J (2600)-Berkes,F (2545) Panormo 2002 0-1 (66)}) 12. Nxc6
bxc6 13. Bf4 Bd6 14. Bg3 Rc8 15. Qd3 c5 16. dxc5 Rxc5 17. Rad1 Bxg3 18. fxg3
Re8 19. h3 Qc7 20. Bb3 a5 21. Rf4 Qe5 22. Rd2 Nh5 23. Rf3 Nf6 24. Re3 Qc7 25.
Qe2 Rb8 26. Rd1 d4 27. Rxd4 Bxb3 28. axb3 Rxb3 29. Kh2 Qb8 30. Ne4 Rxe3 31.
Qxe3 Nxe4 32. Qxe4 Re5 33. Qf3 Qb5 34. Rd8+ Re8 35. Rxe8+ Qxe8 36. Qf5 {
0.07. Dead equal of course}) 6. Bd3 d5 7. O-O c5 8. dxc5 dxc4 9. Bxc4 Qxd1 10.
Rxd1 Bxc5 {A Queen's Gambit Accepted-type of result!} 11. b3 Bb7 12. Bb2 Nc6
13. Nb5 {[#]} ({Relevant:} 13. Kf1 Rfd8 14. Ke2 Be7 15. Rxd8+ Rxd8 16. Rd1 Rxd1
17. Nxd1 Kf8 18. Nc3 h6 19. h3 Nd7 20. Ne4 Nb4 21. Nc3 Nc6 22. Bb5 Nc5 23. Kd2
Nb4 24. Bf1 Nd5 25. Kc2 Nxc3 26. Bxc3 Be4+ 27. Kd1 Nd3 28. Bxd3 Bxd3 29. Ne5
Be4 30. f3 Bb7 31. Nd3 Ba6 32. Kd2 f6 33. e4 e5 34. Ke3 Kf7 35. h4 h5 36. Bb4
Bxd3 37. Bxe7 Bf1 38. Bd6 Bxg2 39. Bb8 a6 40. Bc7 b5 41. f4 exf4+ 42. Kxf4 Ke6
{Ivanchuk,V (2722)-Cheparinov,I (2677) Sibenik 2016 1/2-1/2}) 13... Rad8 $146 (
{Predecessor:} 13... Rfd8 14. Ne5 a5 15. Nxc6 Bxc6 16. Be5 Kf8 17. Bd4 Nd7 18.
Bxc5+ Nxc5 19. f3 Ke7 20. Kf2 Rxd1 {1/2-1/2 (20) Beeck,M (2126)-Koll,L (1993)
Osnabrueck 2018}) 14. Nc7 Rxd1+ 15. Rxd1 Na5 16. Bb5 Rc8 17. Bxf6 gxf6 18. Rd7
Bc6 19. Bxc6 Nxc6 20. Na6 Nb4 21. Rxa7 Nxa2 22. Nxc5 Rxc5 23. g4 Nc1 24. Nd4 h5
25. gxh5 Rxh5 26. Rb7 e5 27. Nf3 Nxb3 28. Rxb6 e4 29. Ne1 Nc5 30. Rxf6 Ne6 31.
f3 {0.00}) 3... d5 {transposes back to a 1.d4 d5 opening line} (3... c5 {
[d=65, 532297Mn] I was frankly amazed by Stockfish's choice. It settled for
this line almost right away. After a brief flirtation with a more normal
approach, it went once again for... the Blumenfeld!} 4. d5 b5 (4... exd5 {
At [d=58, 108394Mn] Stockfish chooses for the standard Modern Benoni} 5. cxd5
d6 6. e4 g6 7. Nfd2 Bg7 8. Nc3 O-O 9. Be2 Na6 10. O-O Nc7 11. a4 a6 12. f3 ({
Relevant:} 12. Kh1 Qe7 13. f4 h5 14. h3 Rd8 15. Ra3 Rb8 16. a5 Bd7 17. Rb3 Nb5
18. Bxb5 axb5 19. Nxb5 Bxb5 20. Rxb5 Nxe4 21. Qf3 Nf6 22. Nc4 Qe4 23. Qxe4 Nxe4
24. Kh2 h4 25. Be3 Ng3 26. Re1 Nf5 27. Bf2 Bd4 28. Kg1 Re8 29. Kf1 Bxf2 30.
Kxf2 Rxe1 31. Kxe1 Re8+ 32. Kd2 Re7 33. Rb6 Rd7 34. Ne3 Nxe3 35. Kxe3 f5 36.
Kf3 Kf7 37. g3 hxg3 38. Kxg3 Kf6 39. h4 Kg7 40. Rb3 Re7 41. Rb6 Rd7 {Vidit,S
(2726)-Adhiban,B (2660) Krasnaya Polyana 2021 1/2-1/2}) 12... Rb8 13. a5 Bd7
14. Nc4 Bb5 {[#]} 15. Bg5 $146 ({Predecessor:} 15. Be3 Re8 16. Qd2 Qe7 17. Rfe1
Nd7 18. Kh1 Qf8 19. Nb6 Qe7 20. Nc4 Bxc4 21. Bxc4 b5 22. axb6 Rxb6 23. Ra2 Reb8
24. Bf1 Rb4 25. Rea1 Ne5 26. Qc2 Nc4 27. Bc1 Qf6 28. Nd1 Qh4 29. g3 Qf6 30. f4
Ne5 31. Bd2 Nf3 32. Bxb4 Rxb4 33. e5 Qe7 34. Bg2 Ne1 35. Qe2 Nxg2 36. Qxg2 dxe5
37. fxe5 Qxe5 38. Nc3 Qd6 39. Rd1 Bd4 40. Ne4 Qd8 41. Nc3 Rb6 42. Raa1 Ne8 43.
Rd2 Nd6 44. Qe2 Qg5 {Kozak,M (2280)-Vasilchenko,O (2385) Pardubice 1992 0-1})
15... Bxc4 16. Bxc4 Qe8 17. Re1 Nd7 18. f4 b5 19. axb6 Nxb6 20. Bf1 Qd7 21. Qd2
Rfe8 22. h3 Ra8 23. Ra5 f5 24. Raa1 Kh8 25. Kh1 fxe4 26. Nxe4 Rf8 27. Be2 Ncxd5
28. Bg4 Qb5 29. Bf3 Qxb2 30. Qxb2 Bxb2 {1.17}) 5. dxe6 fxe6 6. cxb5 a6 ({
Relevant:} 6... d5 7. Nc3 Nbd7 8. e4 d4 9. e5 Ng4 10. Ne4 Ngxe5 11. Nxe5 Nxe5
12. Qh5+ Nf7 13. Bc4 Be7 14. O-O O-O 15. Re1 g6 16. Qh3 e5 17. Qb3 Kg7 18. Bxf7
Rxf7 19. Bh6+ Kg8 20. Rac1 Bb7 21. Qe6 Bxe4 22. Rxe4 Bd6 23. f4 exf4 24. Rce1
Qd7 25. Qd5 Rd8 26. Bg5 f3 27. Kh1 f2 28. Rf1 Bf8 29. Qc4 Qd5 30. Qxd5 Rxd5 31.
Bh4 d3 {0-1 (31) Ding,L (2799)-Mamedyarov,S (2765) Chess.com INT 2021}) 7. e3
d5 8. Be2 (8. Nc3 {Stockfish's main line at [d=64, 396484Mn]} c4 ({Relevant:}
8... Be7 9. Be2 O-O 10. O-O axb5 11. Bxb5 Bb7 12. Qe2 Nc6 13. Rd1 Qc7 14. h3
Rad8 15. Bd3 Nb4 16. Bb1 Ba6 17. Qe1 Nd7 18. a3 Nc6 19. Nh2 c4 20. Bd2 Nc5 21.
Ne2 e5 22. Bc3 Nb3 23. Ba2 Nxa1 24. Rxa1 d4 25. Bd2 Kh8 26. Ng3 Qb6 27. Rb1 Bc5
28. Ng4 dxe3 29. Nxe3 Bxe3 30. Bxe3 Nd4 31. Qc3 Qc6 32. Kh2 Qd5 33. Rg1 Rb8 34.
Rc1 Rfc8 35. Re1 Bb7 36. f3 Ba8 37. Ne4 h6 38. Qc1 {Kukhmazov,A (2482)-Demidov,
M (2571) Sochi 2022 0-1}) 9. Be2 axb5 10. Nxb5 Na6 11. O-O Nc5 12. Nbd4 Bd6 13.
b3 {[#]} cxb3 $146 ({Predecessor:} 13... e5 14. Nb5 Nxb3 15. Ba3 Rxa3 16. axb3
Rxa1 17. Qxa1 e4 18. Ne5 cxb3 19. Nxd6+ Qxd6 20. Bb5+ Ke7 21. Nc6+ Kf7 22. h3
Rf8 23. Rb1 Bd7 24. Nd4 g6 25. Rxb3 Rb8 26. Qa7 Kg8 27. Bxd7 Rxb3 28. Be6+ Kh8
29. Nxb3 Qxe6 30. Qc7 Kg8 31. Nd4 Qd7 32. Qb8+ Kg7 33. Qg3 Kf8 34. Qf4 Kg7 35.
Qe5 Kf7 36. Ne2 Qe7 37. Qd4 Qd6 38. g3 Nd7 39. Nc3 Nf6 40. Kg2 Qe6 41. Qc5 Qd7
42. Ne2 h5 43. Qc3 {Frenzel,L (1745)-Fuss,H (1742) GER email 2015 1/2-1/2}) 14.
Nxb3 Na4 15. Nbd4 O-O 16. Nb5 Ne4 17. Qc2 Be7 18. Nd2 Nd6 19. Ba3 Nc3 20. Nxc3
Rxa3 21. Qb2 (21. Bd3 Bf6 22. Nb3 h6 23. Rac1 Bxc3 24. Qxc3 Rxa2 25. Bb1 Ra7
26. Nc5 Rc7 27. Qd3 Nf5 28. h3 Qe7 29. Nb3 Ra7 30. Qd2 Bd7 31. Nd4 Nd6 32. f4
Rfa8 33. Nf3 Be8 34. Rfe1 Rb7 35. Kh2 Rab8 36. Qc3 Qf6 37. Qa3 Qe7 38. Qc5 Nc4
39. Qxe7 Rxe7 40. Bd3 Nd6 41. Ra1 Nf5 42. Ra6 Bh5 43. Ne5 {0.96}) 21... Ra8 22.
a4 Bf6 23. Nf3 Bd7 24. Nd4 Qa5 25. Rfc1 Rfc8 26. Bg4 Nc4 27. Qb7 Rc7 28. Qb3
Nd2 29. Qd1 Rxc3 30. Qxd2 Rc4 31. Qd1 Bxd4 32. exd4 Rxa4 33. Rxa4 Qxa4 34. Qd2
Rc8 35. Rxc8+ Bxc8 36. g3 Qe8 37. Qb4 Bd7 38. Qd6 Qf7 {1.14}) 8... Bd6 9. O-O
Bb7 10. Nc3 O-O {[#]} 11. a3 $146 ({Predecessor:} 11. a4 Kh8 12. b3 e5 13. Ng5
Qe7 14. f4 a5 15. Bg4 Nbd7 16. Bf5 d4 17. exd4 cxd4 18. Nce4 Bxe4 19. Nxe4 Nxe4
20. Bxe4 Rad8 21. Bd2 exf4 22. Bf3 Bb4 23. Re1 Ne5 24. Bxb4 Nxf3+ 25. Qxf3 Qxb4
26. Qd3 Rfe8 27. Rxe8+ Rxe8 28. Rd1 Qd6 {1/2-1/2 (28) Schoch,T (2308)-Balzert,
A (2300) ICCF email 2017}) 11... Qe7 12. b4 cxb4 13. axb4 Bxb4 14. Bb2 axb5 15.
Rxa8 Bxa8 16. Nxb5 Nbd7 17. Qb3 Bc5 18. Ra1 Bb7 19. Bd3 h6 20. Rc1 Rc8 21. h3
Bb6 22. Nbd4 Rxc1+ 23. Bxc1 Bc8 24. Ba3 Bc5 25. Bxc5 Nxc5 26. Qa3 Nfd7 27. Bg6
Qd6 28. h4 Bb7 29. h5 Qa6 30. Qc3 Qd6 31. g4 Ne4 32. Qb3 Ba6 33. Qa4 Nec5 34.
Qa3 Nf8 35. Kg2 Ne4 36. Qa5 Nf6 {1.08}) (3... b6 {[d=64, 246946Mn]} 4. g3 {
As with most engines, 4.g3 is the only move that Stockfish considers.} Ba6 5.
b3 d5 6. Bg2 Bb4+ 7. Bd2 Be7 8. O-O O-O 9. Ne5 c6 10. Bc3 Bb7 11. Nd2 Nbd7 12.
e4 Nxe4 13. Nxe4 Nxe5 14. dxe5 dxe4 {Funnily enough, we also saw this line in
an AlphaZero-Stockfish 8 game!} 15. Qxd8 ({Relevant:} 15. Bxe4 Qc7 16. Qf3 Rab8
17. b4 (17. Rfd1 c5 18. Rd3 Bxe4 19. Qxe4 Rfd8 20. Rad1 Rxd3 21. Rxd3 Qb7 22.
Qxb7 Rxb7 23. f4 h5 24. Kf2 Kf8 25. h3 Ke8 26. Ke2 Rd7 27. Rxd7 Kxd7 28. g4
hxg4 29. hxg4 g6 30. Kf3 Kc6 31. Ke4 a6 32. Be1 Bd8 33. Kf3 Kd7 34. Bc3 Bh4 35.
Bd2 Kc6 36. Be3 Be1 37. Bf2 Bd2 38. Bh4 Kd7 39. Ke4 Bc1 40. Bf6 Bd2 41. Bh4 Bc1
42. f5 gxf5+ 43. gxf5 Bb2 44. Bg5 Bc3 {Ivanchuk,V (2720)-Duda,J (2658)
Reykjavik 2015 1/2-1/2}) 17... a6 18. Rfd1 c5 19. b5 Bxe4 20. Qxe4 axb5 21.
cxb5 Rbd8 22. a4 Rxd1+ 23. Rxd1 g6 24. h4 h5 25. Qf3 Rb8 26. Rd2 Kf8 27. Qe3
Qb7 28. Rd6 Bxd6 29. exd6 Ke8 30. Qf4 Rd8 31. Bf6 Rc8 32. Be5 f5 33. Qe3 Rd8
34. Qh6 Qf7 35. Qf4 Qb7 36. Kh2 Qd5 37. Qg5 Rxd6 38. Qxg6+ Kd7 39. Qh7+ Kd8 40.
Qg8+ Kc7 41. Qf7+ Kd8 42. Qf6+ Kd7 43. Bxd6 Qxd6 44. Qg7+ Qe7 45. Qh8 {1/2-1/2
(196) AlphaZero-Stockfish 8 London, UK 2018}) 15... Rfxd8 16. Bxe4 Rd7 {[#]}
17. Rad1 $146 ({Predecessor:} 17. Rfd1 Rad8 18. Rxd7 Rxd7 19. Kf1 Kf8 20. Ke2
c5 21. Bxb7 Rxb7 22. Rd1 Ke8 23. Bd2 Rd7 24. g4 Bh4 25. Be3 Rxd1 26. Kxd1 Kd7
27. Ke2 h6 28. Kf3 Kc6 29. Kg2 Kd7 30. Kh3 Bd8 31. Bf4 Kc6 32. Kg3 Bc7 33. Kg2
Bd8 34. Bg3 b5 35. f4 g6 36. Be1 Be7 37. Kg3 bxc4 38. bxc4 Kd7 39. Bd2 Bf8 40.
Kf3 Be7 41. Be3 a6 42. Bf2 Kc6 43. Ke4 Bd8 44. Be1 Be7 45. Ba5 Bh4 46. Kf3 Kb7
{Tleptsok,R (2527)-Jedrzejowski,M (2498) ICCF email 2018 1/2-1/2 (89)}) 17...
Rad8 18. Rxd7 Rxd7 19. Rc1 c5 20. Bxb7 Rxb7 21. Rd1 Kf8 22. Kf1 Ke8 23. Ke2 Rd7
24. Rxd7 Kxd7 25. Kf3 Bd8 26. Ke4 Be7 27. Kf4 Bd8 28. Bd2 Bc7 29. Ke4 Bd8 30.
Bf4 Be7 31. h3 a6 32. Bd2 Bd8 33. Be1 Be7 34. Kf4 Bd8 35. Ke3 Bc7 36. Ke4 Bd8
37. f3 g6 38. Kf4 {0.30}) (3... Bb4+ {[d=58/68, 75114Mn]} 4. Nbd2 b6 {is
Stockfish's best line with an evaluation of 0.54. Unfortunately Stockfish
chose this m,oment to only display this one move of its main line! We will
show the line it displayed at [d=55/65, 40492Mn]} (4... Be7 {At [d=57/66,
64994Mn] Stockfish liked this odd move which Koivisto had also favoured.} 5. e4
d5 6. e5 Nfd7 7. Bd3 c5 8. O-O Nc6 {[#]} 9. Re1 $146 ({Predecessor:} 9. Qe2
dxc4 10. Nxc4 cxd4 11. Rd1 O-O 12. Bc2 Qc7 13. Bf4 b5 14. Nd6 Nc5 15. Rac1 f5
16. Bb1 Nb7 17. Qxb5 Nbd8 18. Nxd4 Rb8 19. Rxc6 Nxc6 20. Qxc6 Qxc6 21. Nxc6
Bxd6 22. exd6 Rxb2 23. Bd3 Rxa2 24. Ne7+ Kf7 25. Nxc8 Ra4 26. Bg5 h6 27. Ne7
hxg5 28. Nc6 Kf6 29. d7 a5 30. d8=Q+ Rxd8 31. Nxd8 Rd4 32. Bc2 {1-0 (32)
Asquith,J (2450)-Avellan,G (2221) ICCF email 2006}) 9... O-O 10. Nb3 dxc4 11.
Bxc4 a5 12. a4 Nb6 13. Bb5 c4 14. Nbd2 Nxd4 15. Nxd4 Qxd4 16. Nxc4 Qxd1 17.
Rxd1 Nd5 18. b3 b6 19. Bc6 Rb8 20. Bxd5 exd5 21. Rxd5 Be6 22. Rb5 Rfc8 23. Be3
Bd8 24. Rb1 h6 25. Nd6 Rc2 26. Rc1 Rxc1+ 27. Bxc1 Bc7 28. Ba3 {0.55}) 5. e3 Bb7
6. Bd3 O-O 7. a3 Bxd2+ 8. Bxd2 d5 9. O-O dxc4 10. Bxc4 Nbd7 11. b4 ({Relevant:
} 11. Qe2 c5 12. Rfd1 Qe7 13. dxc5 Nxc5 14. b4 Nce4 15. Be1 Rfc8 16. Rac1 a6
17. Bd3 Rxc1 18. Rxc1 e5 19. Nh4 b5 20. f3 Nd6 21. e4 Re8 22. Qe3 h6 23. g4 Rd8
24. Be2 Kh7 25. Bg3 Nfe8 26. Rc5 f6 27. Qc3 Qd7 28. Ng2 Nf7 29. h4 Qd2 30. Qxd2
Rxd2 31. Kf1 Nd8 32. Ne3 Ne6 33. Rc2 Rxc2 34. Nxc2 h5 35. gxh5 Nd6 36. Ne3 Nd4
37. Bd1 Bc6 38. Be1 Be8 39. Nc2 Ne6 40. Bd2 Bxh5 {Saric,I (2574)-Damljanovic,B
(2459) Arandjelovac 2022 1/2-1/2}) 11... Ne4 12. Be1 Qe7 {[#]} 13. Bd3 $146 ({
Predecessor:} 13. Rc1 Rfd8 14. Qe2 a6 15. Bd3 Rdc8 16. Ne5 Nxe5 17. dxe5 f5 18.
exf6 Nxf6 19. Bc3 c5 20. bxc5 bxc5 21. Ba1 a5 22. Rfd1 Kh8 23. Qb2 Bd5 24. Bc4
Rd8 25. Qe2 Rac8 26. Be5 a4 27. Qc2 Nd7 28. Ba1 Nb6 29. Ba2 Bxa2 30. Rxd8+ Rxd8
31. Qxa2 Rd3 32. Bc3 Qd6 33. Qa1 Qd7 34. h3 h6 35. Qb1 Nc4 36. Qb8+ Kh7 37.
Bxg7 Rd1+ 38. Kh2 Rxc1 39. Qh8+ Kg6 40. Qxh6+ Kf7 41. Qf6+ Kg8 42. Qf8+ Kh7 {
Berend,E (2370)-Polaczek,R (2427) Luxembourg 2014}) 13... Nd6 14. Rc1 Rfc8 15.
Qe2 c5 16. dxc5 bxc5 17. e4 c4 18. Bb1 Nb6 19. Qe3 e5 20. Bc3 f6 21. Nh4 Na4
22. Ba1 a5 23. f4 axb4 24. axb4 c3 25. fxe5 Qxe5 26. Nf3 Nc4 27. Qe1 Qe6 28.
Bxc3 Nxc3 29. Rxc3 Ne5 30. Qe3 Ba6 31. Rxc8+ Rxc8 {0.55}) 4. Nc3 Bb4 5. Bg5 h6
6. Bxf6 Qxf6 7. e3 O-O 8. Qb3 c5 9. cxd5 exd5 10. dxc5 Bxc3+ 11. Qxc3 Qxc3+ 12.
bxc3 Nd7 13. Rd1 Nf6 14. Nd4 Bd7 15. f3 Rfc8 16. Nb3 Ba4 17. Rd4 Bxb3 18. axb3
Rxc5 19. Kd2 {Many Stockfish 8 - AlphaZero games were played in this variation
- amazing how little some best choices for engines have changed since that
match!} a5 (19... Ra5 {was AlphaZero's choice that also led to many draws.})
20. Bd3 Rac8 21. Rc1 {[#]} R8c7 $146 ({Relevant:} 21... Kf8 22. g4 Ke7 23. h4
g6 24. b4 axb4 25. Rxb4 R8c7 26. Rcb1 Rxc3 27. Rxb7 h5 28. g5 Nd7 29. Rxc7 Rxc7
30. f4 Ra7 31. Bc2 Kd6 32. e4 dxe4 33. Bxe4 Ra4 34. Ke3 Ra3+ 35. Kd4 Rh3 36.
Rh1 Rg3 37. Rd1 Nf8 38. f5 Rh3 39. Ra1 gxf5 40. Ra6+ Ke7 41. Ra7+ Kd6 42. Ra6+
Ke7 43. Ra7+ {1/2-1/2 (43) Swiercz,D (2647)-Caruana,F (2800) Riga 2021}) 22.
Rc2 Kf8 23. h4 g5 24. hxg5 hxg5 25. Ra4 Ke7 26. b4 axb4 27. cxb4 Rxc2+ 28. Bxc2
Kd6 29. Bb3 Kc6 {0.13} *
[Event "#6 - Other stuff / Crazy stuff!"]
[Site "?"]
[Date "2022.07.21"]
[Round "?"]
[White "Stockfish Opening Repertoire"]
[Black "?"]
[Result "*"]
[ECO "C36"]
[Annotator "gmmat"]
[PlyCount "48"]
[EventDate "2022.07.21"]
1. Nc3 {[d=62, 137039Mn]} (1. e4 e5 (1... c5 2. d4 (2. b4 cxb4 3. Nf3 e6 4. a3
a6 ({Relevant:} 4... b3 5. cxb3 d5 6. e5 Nc6 7. d4 Bd7 8. Bd3 Qb6 9. Be3 Nh6
10. Nc3 Na5 11. b4 Nc6 12. O-O Be7 13. Rc1 O-O 14. Qc2 Rac8 15. Bxh7+ Kh8 16.
Bd3 Ng4 17. Qe2 Nxe3 18. fxe3 g6 19. Qf2 Kg7 20. Na4 Qd8 21. Nc5 Rc7 22. Qg3
Bc8 23. h4 b6 24. Nb3 Rh8 25. Ng5 Bxg5 26. hxg5 Ne7 27. Qf2 Ng8 28. Qf4 Re7 29.
g4 Bd7 30. Kg2 Be8 31. Rh1 Rxh1 32. Rxh1 Rc7 33. Nd2 Rc3 34. Bb1 {Bernadskiy,V
(2629)-Jobava,B (2603) Chess.com INT 2020 1-0}) 5. d4 d5 6. e5 bxa3 7. c3 Bd7
8. Nxa3 Nc6 9. Bd3 Na5 10. O-O Rc8 11. Nb1 {[#]} Qb6 $146 ({Predecessor:} 11...
Be7 12. Qc2 Nh6 13. Bxh6 gxh6 14. Rc1 h5 15. Nbd2 h4 16. h3 h5 17. Qa2 Nc6 18.
Qb1 Rc7 19. Bf1 Na7 20. c4 dxc4 21. Rxc4 Bc6 22. Bd3 Nb5 23. Qe1 Bxf3 24. Rxc7
Nxc7 25. Nxf3 Nd5 26. Be4 Qd7 {1/2-1/2 (26) Prakash,O (1443)-Nepomuk,H (1118)
LSS email 2011}) 12. Bc2 h6 13. h4 Ne7 14. h5 Nf5 15. Ra2 Be7 16. Kh2 Bb5 17.
Rg1 Qd8 18. Na3 Bd7 19. Nb1 Nc4 20. Nbd2 Nb6 21. Nb1 Bb5 22. Na3 Bc6 23. g4 Nh4
24. Nxh4 Bxh4 25. Rg2 Be7 26. Rg3 Kd7 27. Be3 Kc7 28. Bd3 Qf8 {-0.61}) 2...
cxd4 3. c3 {[d=62, 87139Mn]} dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. O-O a6 8.
Bf4 Nf6 9. Qe2 Nh5 10. Be3 Be7 11. Rfd1 Bd7 12. Nd4 g6 13. Nxc6 Bxc6 14. Bh6 {
[#]} Bg5 $146 ({Predecessor:} 14... Qa5 15. Qf3 Bf6 16. Rab1 Qb4 17. Qe2 Ng7
18. a3 Qb6 19. Rbc1 Be5 20. Be3 Qd8 21. f4 Bf6 22. Bc5 Be7 23. Qe3 b5 24. Bd4
O-O 25. Bb3 a5 26. Rc2 Rb8 27. Ne2 Ba8 28. Ng3 a4 29. Ba2 Re8 30. f5 Bg5 31.
Qf2 Bh4 32. Rcd2 exf5 33. Bc3 d5 34. Bxd5 Bxd5 35. Rxd5 Qb6 36. Bd4 Qc6 37.
Bxg7 Bxg3 38. hxg3 Kxg7 39. exf5 {1/2-1/2 (39) Cook,D (2287)-Ilyasov,A (2367)
ICCF email 2017}) 15. Bxg5 Qxg5 16. Rxd6 Ke7 17. Rad1 Rhd8 18. Rxd8 Rxd8 19.
Rxd8 Kxd8 20. g3 Qc1+ 21. Kg2 Nf6 22. Bxa6 Nxe4 23. Nxe4 bxa6 24. f3 Bxe4 25.
fxe4 Ke7 26. Qxa6 Qxb2+ 27. Kf3 Qc3+ 28. Kg2 Qb4 29. Qe2 Kf6 30. h4 Kg7 31. Qe3
h6 32. a3 Qc4 33. g4 Qa4 34. Kf3 Qd1+ 35. Kg3 {-0.33}) 2. f4 {[d=60, 196112Mn]}
exf4 3. Nf3 Nf6 4. Nc3 d5 5. exd5 Nxd5 6. Bb5+ ({Relevant:} 6. Nxd5 Qxd5 7. d4
Be7 8. Bd3 g5 9. Qe2 Bf5 10. c4 Bxd3 11. Qxd3 Qe6+ 12. Kf2 Qg6 13. Qxg6 hxg6
14. Bd2 Bf6 15. Bc3 Nd7 16. Rae1+ Kf8 17. Nd2 Rd8 18. Ne4 Be7 19. d5 Rh5 20. h3
f5 21. Nd2 Nc5 22. Kf3 c6 23. Bb4 Bd6 24. Bxc5 Bxc5 25. Nb3 Be3 26. Rd1 cxd5
27. cxd5 Rh7 28. Nd4 Bxd4 29. Rxd4 Re7 30. Rd3 Re4 31. Rc1 Ke7 32. Rc7+ Rd7 33.
Rc8 Rb4 34. Rd2 Rb5 35. Re2+ Kf7 {Balog,I (2578)-Svane,R (2615) Tornelo INT
2021 0-1}) 6... c6 7. Qe2+ Be6 8. Nxd5 Qxd5 9. Ba4 Qd8 10. Bb3 Qf6 {[#]} 11.
O-O $146 ({Predecessor:} 11. d4 Bd6 12. Bxe6 fxe6 13. Bd2 Nd7 14. O-O-O O-O 15.
Rde1 Rae8 16. Ne5 Qe7 17. Rhf1 Bxe5 18. dxe5 Rf5 19. Bxf4 Ref8 {1/2-1/2 (19)
Green,P (2241)-Tomasa,I (2263) ICCF email 2020}) 11... Bd6 12. Re1 Na6 13. Bxe6
fxe6 14. Qxe6+ Qxe6 15. Rxe6+ Kd7 16. Re4 Rae8 17. Rxe8 Rxe8 18. a3 h6 19. b4
g5 20. h3 Ke6 21. Bb2 Nc7 22. Re1+ Kf7 23. Rxe8 Nxe8 24. Kf1 Kg6 25. Bd4 a6 26.
d3 Nc7 27. Nd2 Be7 28. Bb2 h5 29. Nb3 Bf6 30. Bxf6 Kxf6 31. c4 Ne6 32. Na5 Nd8
33. Nb3 Ke5 {-0.63}) (1. b4 {[d=62/75, 81134Mn]} e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4.
Nf3 O-O 5. c4 d5 6. e3 c5 ({Relevant:} 6... Nc6 7. Bb2 Re8 8. a3 Bd6 9. cxd5
Nxd5 10. Be2 Qd7 11. Qc2 Qf5 12. Qxf5 Bxf5 13. Nc3 Nxc3 14. Bxc3 Ne5 15. Nh4
Be4 16. d4 Ng6 17. Nxg6 Bxg6 18. Bf3 Rab8 19. Bb4 Rec8 20. Rc1 a5 21. Bxd6 cxd6
22. Kd2 b5 23. Bb7 Rc4 24. Bd5 Ra4 25. Ra1 b4 26. axb4 Raxb4 27. Rhc1 a4 28.
Ke1 h5 29. Bc6 Rc8 30. d5 Rc7 31. Rc3 Be4 32. Rca3 Ra7 33. f3 Bc2 34. Kd2 Bb3
35. e4 g5 36. Rc1 {Nakamura,H (2736)-Swiercz,D (2649) Lichess.org INT 2020 1/
2-1/2 (70)}) 7. cxd5 Nxd5 8. a3 Ba5 9. Qc2 Nc6 10. Bb2 Bg4 11. Be2 Rc8 12. h3
Bh5 13. O-O a6 14. Nc3 Bg6 15. Qb3 Bxc3 16. Bxc3 b5 17. Qb2 f6 18. Rac1 {[#]}
Bf7 $146 ({Predecessor:} 18... Qd6 19. Rfd1 Bf7 20. d3 Nxc3 21. Rxc3 Ne7 22.
Rc2 Nd5 23. Nd2 Nb6 24. Ne4 Qe7 25. Rdc1 Na4 26. Qb1 Be6 27. Nc3 Nxc3 28. Rxc3
Rc7 29. Bg4 f5 30. Bd1 Kh8 31. Bb3 Bd7 32. Ba2 Qd6 33. Qb3 Rfc8 34. h4 h6 35.
g3 Qe5 36. Qd5 {1/2-1/2 (36) Whittaker,I (2138)-Sneddon,I (2367) ICCF email
2021}) 19. Rfd1 Qe7 20. Qc2 Rfd8 21. Bd3 h6 22. Bh7+ Kh8 23. Bf5 Be6 24. Bxe6
Qxe6 25. Ba1 Na5 26. d3 Kg8 27. Kh1 Nb6 28. Bc3 Nc6 29. Be1 Na4 30. Bd2 {-0.45}
) (1. g3 e5 2. c4 {is Stockfish's line, transposing back into 1.c4.}) (1. f4 {
[d=54, 102770Mn]} d5 2. e3 c5 3. b3 Nf6 4. Bb2 g6 5. Be2 Bg7 {Basically a
classical response to the Dutch reversed.} 6. Nf3 O-O 7. O-O b6 8. Ne5 Bb7 9.
d4 ({Relevant:} 9. d3 Nfd7 10. Nd2 Nc6 11. Ndf3 f6 12. Nxc6 Bxc6 13. e4 Kh8 14.
Qe1 e6 15. f5 exf5 16. exf5 d4 17. fxg6 hxg6 18. Qg3 Qe8 19. Rae1 Ne5 20. Bc1
Bxf3 21. Bxf3 Rd8 22. Bb7 Qd7 23. Qh4+ Kg8 24. Ba6 g5 25. Qh5 Rfe8 26. a4 Qf7
27. Qd1 Qg6 28. Bb5 Rf8 29. Qe2 f5 30. h3 Kh7 31. Qf2 Rd6 32. Re2 Re6 33. Rfe1
Rd8 34. Bd2 Rdd6 35. a5 g4 36. Qh4+ Kg8 37. axb6 Rxb6 38. Rxe5 Rxe5 {Gabuzyan,
H (2557)-Xu,Y (2554) Tornelo INT 2021 1-0}) 9... e6 10. Nd2 Nc6 11. Rc1 {[#]}
Ne7 $146 ({Predecessor:} 11... Rc8 12. c3 Qe7 13. Qe1 Nd7 14. Ndf3 f6 15. Nxd7
Qxd7 16. c4 Ne7 17. Qf2 Nf5 18. g4 Nd6 19. Nd2 f5 20. g5 cxd4 21. exd4 Ne4 22.
Nxe4 fxe4 23. Rfd1 Rf7 24. Ba3 Bf8 25. Bb2 Bd6 26. cxd5 Bxd5 27. Qg2 Bxf4 28.
Rxc8+ Qxc8 29. Rf1 Qc2 {0-1 (29) Kuegel,T (2244)-Riazantsev,A (2634) Chess.com
INT 2021}) 12. g4 Qc7 13. Qe1 Ne4 14. Nxe4 dxe4 15. dxc5 Qxc5 16. Bd4 Qc7 17.
Rd1 Rad8 18. h4 f6 19. Nc4 Nd5 20. a4 a6 21. Rf2 e5 22. fxe5 fxe5 23. Rxf8+
Rxf8 24. Bb2 b5 25. Ba3 Rf3 26. Bxf3 exf3 27. axb5 axb5 28. e4 {-0.52}) (1. b3
{[d=64, 164644Mn]} e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4 f6 6. Qh5+ g6 7. Qh4
exf4 8. Nc3 Nge7 ({Relevant:} 8... a6 9. Bxc6+ bxc6 10. exf4 d4 11. Ne4 c5 12.
Nxd6+ Qxd6 13. O-O-O Ne7 14. Nf3 Bb7 15. Rde1 O-O-O 16. Rhf1 Nd5 17. f5 g5 18.
Qg3 Rde8 19. Kb1 a5 20. Ba3 a4 21. Re6 Rxe6 22. fxe6 Nf4 23. Re1 Re8 24. e7 d3
25. c4 Rxe7 26. Rxe7 Qxe7 27. Qf2 Qe2 28. Qxc5 Bxf3 29. Qf8+ Kd7 30. Qf7+ Kc6
31. gxf3 Qd1+ 32. Kb2 Qxd2+ 33. Kb1 Qd1+ 34. Kb2 Qc2+ 35. Ka1 Qc3+ 36. Kb1 Qe5
37. Bc1 axb3 38. axb3 {Bluebaum,M (2642)-Grischuk,A (2758) Chess.com INT 2022
1/2-1/2 (90)}) 9. Qxf6 Rf8 10. Qh4 fxe3 11. dxe3 Qd7 12. Nf3 Qg4 13. Qf2 Bd7
14. O-O-O O-O-O 15. Kb1 Kb8 16. Nxd5 Nxd5 17. Rxd5 a6 18. Bc4 Be6 19. h3 Qe4
20. Rxd6 cxd6 21. Ng5 Qxc4 22. Qxf8 Rxf8 23. bxc4 Bxc4 {[#]} 24. Nxh7 $146 ({
Predecessor:} 24. Ba3 Kc7 {1/2-1/2 (24) Sneppe,H (2436)-Iermito,S (2424) ICCF
email 2020}) 24... Rf1+ 25. Rxf1 Bxf1 26. Nf8 Bxg2 27. Nxg6 Bxh3 28. Nf4 Bf1
29. Bd4 Kc7 30. Kb2 Bc4 31. a3 Bf7 32. Kc3 Na5 33. Nd3 Bg8 34. Nb2 b6 35. Nd3
Nb7 36. Bf6 Kc6 37. Nf2 a5 38. Ne4 Kd5 39. Ng5 Nc5 {-0.08}) (1. h3 e5 2. e4 Nf6
({Relevant:} 2... Bc5 3. Nf3 d6 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb6 7. Bd3 O-O 8.
O-O Nc6 9. Bc2 Re8 10. Nc3 h6 11. a3 a6 12. Re1 Na5 13. b4 Nc4 14. Qd3 d5 15.
e5 Ne4 16. Nxe4 dxe4 17. Rxe4 Be6 18. Rh4 Qd5 19. Qh7+ Kf8 20. Be4 Qb5 21. a4
Qxb4 22. d5 Qc5 23. dxe6 Qxf2+ 24. Kh2 Nxe5 25. Ba3+ c5 26. Rf4 Bc7 27. Kh1
Rxe6 28. Qh8+ Ke7 29. Qxa8 Nxf3 30. Rxf3 Qd4 31. Raf1 {1-0 (31) Nakamura,H
(2736)-Ten Hertog,H (2517) Chess.com INT 2021}) 3. Nf3 Nxe4 4. d3 {[#]} Nd6
$146 ({Predecessor:} 4... Nf6 5. Nxe5 d5 6. Be2 Bd6 7. Nf3 O-O 8. O-O Nc6 9.
Re1 Re8 10. c3 h6 11. Na3 a6 12. Nc2 Ne7 13. b4 a5 14. b5 Bd7 15. Rb1 c5 16.
bxc6 bxc6 17. Ba3 c5 18. d4 Qc8 19. Bd3 c4 20. Bxd6 cxd3 21. Ne3 Nf5 22. Be5
Nxe3 23. Rxe3 Bf5 24. Bxf6 Rxe3 25. fxe3 gxf6 26. Qd2 Bg6 27. Ne1 Qc4 28. Rd1
Bh5 29. g4 Bg6 30. Nxd3 Bxd3 31. Qxd3 Qxa2 32. Rd2 Qa1+ 33. Rd1 Qa4 34. Rf1 {
Krohs,T-Schleef,H freechess.de 2021 0-1}) 5. Nxe5 Qe7 6. Qe2 Nf5 {A reversed
Carlsen-Caruana Petroff!} 7. Nf3 Nc6 8. Qxe7+ Bxe7 9. Nc3 Nfd4 10. Nxd4 Nxd4
11. Nd5 Nxc2+ 12. Kd1 Nxa1 13. Nxc7+ Kd8 14. Nxa8 b6 15. Bf4 d6 16. Kd2 Bb7 17.
d4 g5 18. Be3 Bxa8 19. f3 Bb7 20. Bd3 h5 21. Rxa1 Rg8 22. Bf5 d5 23. Rc1 h4 24.
a3 Bd6 25. b4 a5 26. Rb1 Bc6 27. bxa5 bxa5 28. Kc2 Bc7 29. Kd1 Ke7 30. Kc2 {
-0.12}) (1. a3 c5 {was Stockfish's favourite with a 0.00 evaluation!}) (1. d4
d5 (1... Nf6 2. c4 (2. Bg5 {[d=64, 144546Mn]} d5 3. e3 c5 4. c3 Qb6 5. Qb3 c4
6. Qxb6 axb6 7. Bxf6 exf6 8. Ne2 Be6 9. Nf4 b5 {[#]} 10. Nd2 $146 ({
Predecessor:} 10. g3 g5 11. Nxe6 fxe6 12. Bg2 f5 13. Nd2 b4 14. g4 fxg4 15. e4
Ra5 16. O-O Bd6 17. Rfe1 O-O 18. exd5 exd5 19. Nf1 bxc3 20. bxc3 Bf4 21. Rab1
Rf7 22. Re8+ Kg7 23. Rd8 Nd7 24. Rxb7 Nf6 25. Rb2 Re7 26. Rc8 Rea7 27. Rc5 h5
28. Rb7+ Rxb7 29. Rxa5 Rb1 30. Ra7+ Kg6 31. Ra6 Kf5 32. Ra5 h4 33. Bxd5 Nxd5
34. Rxd5+ Ke4 35. Rd7 Kd3 36. d5 Kxc3 37. a4 Kd3 38. f3 c3 39. d6 gxf3 {
Hakobyan,A (2129)-Sarana,A (2355) Moscow 2014 0-1}) 10... Bd6 11. g3 Nd7 12.
Bg2 Nb6 13. a3 Kd7 14. O-O-O Bxf4 15. gxf4 g5 16. Rde1 gxf4 17. exf4 Rhg8 18.
Bf3 Bg4 19. Rhg1 Bxf3 20. Nxf3 Rxg1 21. Rxg1 b4 22. axb4 Nc8 23. Kc2 Nd6 24.
Nd2 Ke6 25. Rg3 Ra1 26. Rh3 Rg1 27. Rg3 {0.00}) (2. Bf4 {[d=61, 102424Mn]} g6
3. c3 d6 4. Nd2 Nbd7 5. Ngf3 Nh5 {[#]} 6. Bg5 $146 ({Predecessor:} 6. Bg3 Nxg3
7. hxg3 Bg7 8. e3 Nf6 9. Bd3 c5 10. dxc5 dxc5 11. Qc2 Bd7 12. Ne5 Be6 13. Bb5+
Kf8 14. Ndf3 Qc7 15. Bc4 Nd5 16. Qb3 Bxe5 17. Bxd5 c4 18. Qb5 Bxd5 19. Qxd5 Bf6
20. O-O Rd8 21. Qe4 Kg7 22. Rfd1 h5 23. Rxd8 Rxd8 24. Qc2 Qd7 25. Kf1 b5 26. a3
a6 27. Re1 e6 28. Ke2 Qc6 29. Rd1 Rh8 30. Rg1 a5 31. Nd2 Rd8 32. Nf3 Qc5 33.
Rc1 Rh8 34. Qe4 Rd8 35. Rc2 Qd5 {Svaljek,R (2130)-Jelica,M (2200) Tucepi 1996
1/2-1/2 (65)}) 6... h6 7. Bh4 c5 8. e3 Bg7 9. a4 O-O 10. Bd3 cxd4 11. cxd4 Re8
12. Bc4 Rf8 13. Ng1 Qb6 14. Ne2 g5 15. Bg3 Nxg3 16. a5 Qxb2 17. Nxg3 Nf6 18.
Ra2 Qb4 19. Ra4 Qb2 {0.08}) (2. Nf3 d5 3. Bf4 {[d=70, 220129Mn]} c5 4. e3 Nc6
5. Nbd2 Qb6 6. dxc5 Qxb2 7. c4 (7. Rb1 {has been played a lot at the TCEC and
even by AlphaZero! See https://youtu.be/c0vSapMg0Ys and https://youtu.be/
VC1H3aVqsJM for videos explaining some of these games!}) 7... e6 8. cxd5 Nxd5
9. Rb1 Qxa2 10. Be5 Qa5 11. Bb5 f6 {[#]} 12. Nd4 $146 ({Predecessor:} 12. Bd4
Bd7 13. O-O Be7 14. Nc4 Qd8 15. e4 Nc7 16. Ba4 Nxd4 17. Nxd4 O-O 18. Bxd7 Qxd7
19. Nf5 Qd8 20. Qxd8 Bxd8 21. Nfd6 Na6 {1/2-1/2 (21) Garcia Gonzalvez,J (1990)
-Zawadka,Z (2187) ICCF email 2018}) 12... Nc3 13. Nxc6 Qxb5 14. Qh5+ g6 15.
Rxb5 gxh5 16. Bxc3 bxc6 17. Ra5 e5 18. Ne4 Be7 19. O-O Rg8 20. f4 Bh3 21. Ng3
h4 22. fxe5 fxe5 23. gxh3 hxg3 24. Bxe5 Rg5 25. Bd4 gxh2+ 26. Kxh2 a6 27. Rfa1
Kd7 28. Rxa6 Rxa6 29. Rxa6 Bxc5 30. Bxc5 Rxc5 31. Ra7+ Kd6 32. Rxh7 Re5 33. Kg3
Rxe3+ {New game}) 2... e5 (2... Nc6 {[d=63, 350612Mn]} 3. Nf3 e6 4. e3 d5 5.
Nbd2 ({Relevant:} 5. Nc3 Be7 6. c5 O-O 7. Bb5 Bd7 8. O-O b6 9. Qa4 Qe8 10. b4
a6 11. Bxc6 Bxc6 12. Qb3 Ne4 13. Bb2 Nxc3 14. Qxc3 Bb5 15. Rfc1 Bc4 16. Nd2 b5
17. a4 c6 18. axb5 axb5 19. Rxa8 Qxa8 20. Ra1 Qb7 21. Qa3 Rb8 22. Qa7 h5 23. f3
Kf8 24. Qxb7 {1-0 (24) Nakamura,H (2760)-Van Foreest,J (2702) Chess.com INT
2022}) 5... Bd6 6. Bd3 O-O 7. O-O Re8 8. e4 dxe4 9. Nxe4 {[#]} h6 $146 ({
Predecessor:} 9... e5 10. d5 Nd4 11. Be3 Nxf3+ 12. Qxf3 Be7 13. Rfd1 Bg4 14.
Qg3 Bxd1 15. Rxd1 Bd6 16. Bh6 Nh5 17. Qg4 g6 18. Bg5 f5 19. Bxd8 fxg4 20. Bg5
Kg7 21. a3 h6 22. Be3 c6 23. Nxd6 Red8 24. Nxb7 Rf8 25. dxc6 Rae8 26. Nd6 Re6
27. c5 e4 28. Bc4 Ref6 29. Bd4 Nf4 30. Bxf6+ Kxf6 31. c7 Ke7 32. c8=Q Rxc8 33.
Nxc8+ Kf6 34. c6 {1-0 (34) Dalnodar,M-Czipin,M Mureck 2008}) 10. Re1 e5 11.
Nxd6 cxd6 12. d5 Ne7 13. h3 Bf5 14. Bf1 Rc8 15. Nh4 Bh7 16. a4 a5 17. Ra3 Kh8
18. Rf3 Neg8 19. g3 Rf8 20. b3 Ne4 21. Bd3 Ng5 22. Rf5 g6 23. f4 gxf5 24. fxg5
Ne7 25. Rf1 hxg5 26. Nxf5 f6 27. Qh5 Nxf5 28. Bxf5 Rc7 29. Be3 Kg8 30. Be6+ Kg7
31. Bb6 Bg6 32. Qf3 f5 33. Bxa5 f4 34. gxf4 gxf4 {0.67})) (1... f5 {[d=59,
126168Mn]} 2. Nf3 {Stockfish started off liking 2.Bg5, then 2.Nf3 e6 3.Bf4 but
eventually settled on the classical g3. As always whenever the Dutch and
engines collide, we have a Stonewall by preference!} Nf6 3. g3 e6 (3... g6 {
[+/- 75000Mn]} 4. Bg2 Bg7 5. c4 O-O 6. Nc3 d6 7. O-O c6 8. Re1 Na6 9. a3 {[#]}
e5 $146 ({Relevant:} 9... Ne4 10. Qb3 Kh8 11. Be3 Nxc3 12. bxc3 e5 13. Bg5 Qe8
14. e4 f4 15. gxf4 h6 16. fxe5 hxg5 17. exd6 g4 18. Nd2 Qf7 19. Re2 Nc5 20.
dxc5 Be5 21. Rb1 Rb8 22. Qa4 a6 23. Qa5 Bd7 24. Qc7 Rfc8 25. Qa5 Be6 26. Nf1
Bxc4 27. Reb2 Bxf1 28. Kxf1 Rf8 29. Qc7 Qc4+ 30. Kg1 Qxc5 31. Rd1 b5 32. Qe7
Rf6 33. Rf1 Rbf8 34. Rd2 Bxd6 35. Qd7 Qe5 36. f4 gxf3 37. Qh3+ Kg8 38. Bxf3
Qxc3 39. Rg2 {Studer,N (2581)-Kamsky,G (2658) Biel 2021 0-1}) 10. dxe5 dxe5 11.
Nxe5 Qxd1 12. Nxd1 Nc5 13. b4 Nfe4 14. f4 Nb3 15. Rb1 Nxc1 16. Rxc1 Re8 17.
Bxe4 fxe4 18. Ne3 Bxe5 19. fxe5 Rxe5 20. Red1 Be6 21. Rd4 Kf7 22. Rf1+ Ke7 23.
Rf4 a5 24. Rdxe4 Rxe4 25. Rxe4 axb4 26. axb4 Ra4 27. c5 Kf6 28. Kf2 g5 29. h4
h6 30. Ng4+ Bxg4 31. Rxg4 Kf5 32. Rd4 {0.91}) 4. c4 Be7 5. Bg2 d5 6. O-O Nbd7 (
{Relevant:} 6... Ne4 7. Nc3 c6 8. Qc2 Nd7 9. Rb1 a5 10. a3 O-O 11. Bf4 g5 12.
Bd2 Bf6 13. e3 Rf7 14. Rfc1 h5 15. cxd5 exd5 16. b4 Nb6 17. Bf1 axb4 18. axb4
h4 19. b5 hxg3 20. hxg3 Rh7 21. bxc6 Nxd2 22. Nxd2 bxc6 23. Bd3 Rf7 24. Ne2 f4
25. exf4 Bg4 26. Qxc6 Rb8 27. Kg2 Bd7 28. Qc5 gxf4 29. Nxf4 Bg5 30. Rh1 Bxf4
31. gxf4 Rg7+ 32. Kf1 Rc8 33. Qb4 Qf6 34. Ke1 Nc4 35. Nxc4 dxc4 36. Bxc4+ {
Caruana,F (2792)-Rapport,R (2763) Baku 2021 1/2-1/2}) 7. Bg5 O-O 8. Qc2 c6 9.
cxd5 cxd5 {[#]} 10. Rc1 $146 ({Predecessor:} 10. Nbd2 Ne4 11. Bxe7 Qxe7 12.
Rfc1 Ndf6 13. Nxe4 fxe4 14. Ne5 Qe8 15. Bh3 Qh5 16. Kg2 Ng4 17. Nxg4 e5 18. Qb3
Bxg4 19. Bxg4 Qxg4 20. Qxd5+ Kh8 21. Rc2 Qf5 22. Rf1 Rf6 23. Qxe5 Qg4 24. h3
Qg6 25. Rc7 Raf8 26. Rxb7 Rf5 27. Rb8 Kg8 28. Rxf8+ Kxf8 29. Qxe4 Qh5 30. g4
Qg5 31. Qxf5+ Qxf5 32. gxf5 Kf7 33. e4 Kf6 34. f4 g6 35. e5+ Kxf5 36. d5 g5 37.
e6 Kf6 38. fxg5+ Ke7 39. Rf7+ {1-0 (39) Romero,P-Sampson,H (1790) ICCF email
2015}) 10... Nb6 11. Nbd2 Bd7 12. Ne5 Bd6 13. Nd3 Qe7 14. Bf4 Bxf4 15. Nxf4
Rfc8 16. Qd1 g5 17. Nd3 h6 18. Nf3 Bb5 19. h4 Bxd3 20. Qxd3 Ne4 21. hxg5 hxg5
22. Ne5 Kg7 23. Qe3 Nd6 24. b3 Nf7 25. Nd3 Rxc1+ 26. Rxc1 Rc8 27. Nc5 Rc6 28.
b4 Nc8 29. b5 {0.95}) (1... Nc6) (1... b5 {[d=52, 60187Mn] This line got
tested in TCEC Season 22 SuperFinal and SubFinal!} 2. e4 a6 3. Nd2 e6 4. a4 b4
5. Bd3 Bb7 {[#]} (5... d5 6. c4 dxe4 7. Bxe4 Ra7 8. Nb3 Nf6 9. Bf3 Be7 10. Be3
c5 11. Nxc5 Bxc5 12. dxc5 Rd7 13. Qb3 Bb7 14. Bxb7 Rxb7 15. Nf3 Qc7 16. Nd4 O-O
17. Nb5 axb5 18. cxb5 Rc8 19. Rc1 Nc6 20. O-O Nd5 21. Qd3 Nce7 22. c6 Rbb8 23.
Rfe1 Nxe3 24. Qxe3 Nd5 25. Qc5 h6 26. b3 Nf4 27. Rcd1 Nd5 28. Rd4 Rd8 29. h3
Kh8 30. Ra1 Ra8 31. Rh4 Kg8 32. Rd4 Kh8 33. Rad1 Rac8 34. Rf1 Rb8 35. Rd2 Rbc8
36. Ra1 Ra8 37. g3 Qa5 38. Kg2 Rac8 39. Rd4 Kh7 40. Rad1 Kh8 41. Ra1 Kh7 42.
Kg1 Kh8 43. Kh1 Kh7 44. Kg2 Kg8 45. Kh2 Kh7 46. Rad1 Kh8 47. Ra1 g6 48. Kh1 Kg7
49. Kh2 h5 50. h4 Kh7 51. Rad1 Kg7 52. Rf1 Qc7 53. Rfd1 Qa5 54. R1d2 Kh7 55.
Rb2 Kg7 56. Rc4 Qc7 57. Rd2 Qa5 58. Rb2 Qc7 59. Ra2 Qa5 60. Rac2 Kg8 61. Rd2
Kg7 62. Kh3 Kg8 63. Kg2 Qc7 64. Ra2 Qa5 65. Rac2 Kh7 66. Rc1 Qc7 67. R1c2 f5
68. Re2 Qf7 69. Kh2 f4 70. Rce4 Rf8 71. Rxe6 fxg3+ 72. fxg3 Qf3 73. Qc2 Nf6 74.
Kg1 Rce8 75. Rf2 Qg4 76. Rxe8 Rxe8 77. Rxf6 Qxg3+ 78. Qg2 Re1+ 79. Rf1 Qxh4 80.
Rxe1 Qxe1+ 81. Qf1 Qg3+ 82. Kh1 Qxb3 83. b6 Qd5+ 84. Kg1 b3 85. b7 Qc5+ 86. Qf2
Qb4 87. Qa7 Qe1+ 88. Kg2 Qe4+ 89. Kf1 Qd3+ 90. Kg2 {adjudication 1/2-1/2 (90)
LCZero 0.30-dev+_782753 (3594)-KomodoDragon 2909.00 (3590) https://tcec-chess.
com/#seaso 2022}) (5... Nf6 6. e5 Nd5 7. Ne4 d6 8. Nf3 a5 9. Qe2 Be7 10. h4 Ba6
11. Bxa6 Nxa6 12. Rh3 Nb6 13. Kf1 h6 14. c4 bxc3 15. Nxc3 Nb4 16. Rg3 g6 17.
Kg1 N6d5 18. Bd2 Kf8 19. Nb5 Kg7 20. Rc1 Rb8 21. Qe4 Qd7 22. h5 g5 23. Nh2 c6
24. Nxd6 Bxd6 25. exd6 Qxd6 26. Ng4 f5 27. Qe5+ Qxe5 28. Nxe5 Rb6 29. Rb3 Ra6
30. g3 Rha8 31. Rc5 R8a7 32. Kf1 Kf6 33. Ra3 Kg7 34. b3 Rb7 35. Be1 Rba7 36.
Ra1 Rb7 37. Kg2 Rb8 38. Rd1 Rb7 39. Kf1 Rc7 40. Bd2 Rca7 41. Rdc1 Ra8 42. Ke2
Rb8 43. Bxb4 Rxb4 44. Rxc6 Rxc6 45. Rxc6 Kf6 46. Nd7+ Kf7 47. Nc5 Rxd4 48. Rxe6
Nc3+ 49. Ke3 Rd5 50. Rc6 f4+ 51. gxf4 gxf4+ 52. Kxf4 Rxh5 53. Nb7 Nd5+ 54. Kg3
Rg5+ 55. Kf3 h5 56. Nxa5 Ne7 57. Ra6 Rf5+ 58. Kg2 Rg5+ 59. Kh1 Rf5 60. b4 Nd5
61. b5 Rxf2 62. Rd6 Rf1+ 63. Kh2 Ne3 64. b6 Rf2+ 65. Kg3 Rb2 66. Rc6 Nf5+ 67.
Kh3 Ne7 68. Rh6 Ng8 69. Rd6 Ke7 70. Rc6 Nf6 71. Rxf6 Kxf6 72. Nc4 Rb3+ 73. Kh2
Rc3 74. a5 Rc2+ 75. Kg1 Rc1+ 76. Kf2 Rc2+ 77. Ke1 Ke6 78. b7 Rc1+ 79. Kd2 Rb1
80. a6 h4 81. a7 Rxb7 {adjudication 1-0 (81) KomodoDragon 2894.00 (3600)
-Stockfish dev15_20220401 (3617) https://tcec-chess.com/#seaso 2022}) 6. Nh3
$146 ({Predecessor:} 6. Ngf3 Nf6 7. O-O d5 8. e5 Nfd7 9. Re1 c5 10. c3 c4 11.
Bb1 Nc6 12. Nf1 Be7 13. Ng3 bxc3 14. bxc3 Qc7 15. Ng5 h6 16. Nh3 Na5 17. Nh5 g6
18. N5f4 O-O-O 19. Bxg6 fxg6 20. Nxe6 Qc6 21. Nxd8 Bxd8 22. Nf4 g5 23. Nh5 Nb3
24. Ra2 Nf8 25. Ba3 Ne6 26. Qg4 Kb8 27. Bd6+ Ka7 28. Qxe6 {1-0 (28) Kouzari,M
(2574)-Wheeler,C (2406) Chess.com INT 2018}) 6... d5 7. O-O c5 8. Re1 cxd4 9.
Nf4 Nf6 10. e5 Ne4 11. Nh5 h6 12. Nxe4 dxe4 13. Bxe4 Bxe4 14. Rxe4 Nc6 15. Qf3
Qd5 16. Bd2 O-O-O 17. Nf4 Qa5 18. Nd3 Qd5 19. h4 Kb8 20. h5 a5 21. Rae1 Rd7 22.
Qe2 Rg8 23. Nf4 Qc5 24. Rc1 Qb6 25. Nd3 Bc5 26. b3 Rc8 27. Qg4 Bf8 28. Nb2 Qc5
29. Nc4 Rdd8 30. Rce1 Rd5 {New game}) 2. c4 (2. Bf4 {[d=70, 230569Mn]} c5 3. e3
cxd4 4. exd4 Nc6 5. Nf3 Bf5 6. Be2 ({Relevant:} 6. c4 e6 7. c5 Bg4 8. Nbd2 g6
9. Qb3 Bxf3 10. Qxb7 Nxd4 11. Bb5+ Nxb5 12. Qxb5+ Qd7 13. c6 Qc8 14. c7+ Qd7
15. Qb8+ Qc8 16. Nxf3 Ne7 17. O-O f6 18. Qb5+ Qd7 19. Qa6 g5 20. Bg3 Nf5 21.
Rac1 Rc8 22. Rc6 Kf7 23. Re1 Nxg3 24. hxg3 Bg7 25. Rexe6 Rxc7 26. Nd4 Rxc6 27.
Rxc6 Re8 28. Qd3 Re4 29. Ra6 Re1+ 30. Kh2 Qg4 31. Rxa7+ Kg8 32. Ra8+ Bf8 33.
Qf5 Qxd4 34. Qc8 Qb4 35. Qd7 Qe7 {Aronian,L (2765)-Gavrilescu,D (2518) Warsaw
2022 1/2-1/2}) 6... e6 7. O-O h6 8. c3 Nf6 9. Qb3 Qc8 10. h3 Be7 11. Nbd2 O-O
12. Rfe1 Bd8 13. Qd1 Bc7 14. Bxc7 Qxc7 15. Nb3 {[#]} Nd7 $146 ({Predecessor:}
15... b6 16. Bd3 Bxd3 17. Qxd3 Rac8 18. Ne5 Rfe8 19. Nxc6 Qxc6 20. Nd2 Qc7 21.
Re3 Qd6 22. Rae1 Nh5 23. Qe2 Nf6 24. g4 Qf4 25. Rf3 Qg5 26. Rg3 Qg6 27. Kh2 Qc2
28. Nb3 Qxe2 29. Rxe2 Ne4 30. Rg2 Rc7 31. f3 Nd6 32. Nd2 Nc4 33. Nxc4 Rxc4 34.
f4 b5 35. a3 a5 36. Rg3 b4 37. axb4 axb4 38. f5 bxc3 39. bxc3 Rc6 40. Rge3 Kf8
41. Kg3 Ke7 42. Ra2 Rec8 43. Ra7+ Kf6 44. fxe6 fxe6 45. Rf3+ {Gorban,
D-Khoperia,N Kiev 2004 1/2-1/2}) 16. Nc1 Qb6 17. Qb3 Qc7 18. Bd3 Bxd3 19. Nxd3
Rfc8 20. Qd1 a5 21. a4 Ne7 22. Qe2 Nf6 23. Nc5 Ng6 24. g3 b6 25. Nd3 Ne4 26. h4
Rab8 27. Kg2 Qd8 28. Rg1 Ne7 29. Nf4 Nf5 30. Ne5 Ned6 31. Rh1 Rc7 32. Rhe1 Rbb7
33. Nf3 Rb8 {0.00}) 2... e5 (2... c5 {[d=64/80, 100093Mn]} 3. cxd5 Qxd5 4. Nf3
cxd4 5. Nc3 Qa5 6. Nxd4 Nf6 7. a3 e5 ({Relevant:} 7... g6 8. Nb3 Qh5 9. Bf4 Bg7
10. e4 Qxd1+ 11. Rxd1 O-O 12. Be2 Nc6 13. O-O Rd8 14. Rxd8+ Nxd8 15. Rd1 Be6
16. Nc5 b6 17. Nxe6 Nxe6 18. Be3 Ne8 19. Nd5 Bxb2 20. Nxe7+ Kf8 21. Nd5 Bxa3
22. Ra1 Bb2 23. Ra2 Bd4 24. Nxb6 Rd8 25. Bh6+ Bg7 26. Bxg7+ Kxg7 27. Nd5 Rd7
28. g3 Nd6 29. f3 Nd4 30. Kf2 f5 31. Bd3 fxe4 32. Bxe4 Nc6 33. Ra6 Ne5 34. Ke3
Nxe4 35. Kxe4 Nxf3 36. Kxf3 Rxd5 37. Rxa7+ {Ding,L (2799)-Mamedyarov,S (2767)
chess24.com INT 2022 1/2-1/2}) 8. Nb3 Qc7 9. e4 Be6 10. Bg5 {[#]} Nbd7 $146 ({
Predecessor:} 10... Nfd7 11. Rc1 Nc6 12. Nd5 Qb8 13. Bb5 h6 14. Be3 a6 15. Rxc6
bxc6 16. Bxc6 Ra7 17. Na5 Rc7 18. O-O Bd6 19. b4 O-O 20. Nxc7 Qxc7 21. Qd3 Nb8
22. Bd5 Re8 23. Bxe6 Rxe6 24. Rc1 Qd7 25. g3 Kh7 26. Kg2 Be7 27. Qxd7 Nxd7 28.
Kf3 Nf6 29. Rc8 h5 30. h3 g6 31. Nc6 Kg7 32. a4 Bf8 33. a5 Ne8 34. Bc5 Bd6 35.
Ke2 Bxc5 36. bxc5 Nf6 37. Kd3 Nh7 38. h4 g5 39. Nb4 gxh4 40. gxh4 {Wiaderek,P
(2098)-Laduke,M (1900) FICGS email 2021 1-0}) 11. Rc1 Qd8 12. Bb5 a6 13. Bxd7+
Qxd7 14. Qc2 Be7 15. Bxf6 Bxf6 16. Nc5 Qc6 17. Nxe6 fxe6 18. Qd1 Rc8 19. Qh5+
Ke7 20. O-O Qe8 21. Qe2 Rf8 22. g3 h6 23. Kg2 Kf7 24. Na2 Be7 25. Rxc8 Qxc8 26.
Rc1 Qd7 27. Rc2 Rc8 28. Nc1 Rxc2 29. Qxc2 Kf6 30. Qc3 Qa4 31. b4 Bd6 32. Kf3 a5
33. Nd3 axb4 34. axb4 Kf7 35. Ke3 Ke7 36. h4 {0.74}) 3. dxe5 d4 {[d=62/85,
120740Mn]} 4. Nf3 Nc6 5. a3 Nge7 ({Relevant:} 5... Bg4 6. Bf4 Nge7 7. Nbd2 Ng6
8. g3 f6 9. Bg2 fxe5 10. Bg5 Be7 11. Bxe7 Qxe7 12. Ne4 O-O 13. O-O Rad8 14. Qd3
Kh8 15. b4 b6 16. Rac1 Rd7 17. c5 Nd8 18. Nfd2 Ne6 19. Rfe1 Qd8 20. Qc4 Rdf7
21. e3 dxe3 22. fxe3 Ng5 23. Nxg5 Qxg5 24. Ne4 Qh5 25. cxb6 axb6 26. Rf1 Bf3
27. Nd2 e4 28. Nxe4 Ne5 29. Qc2 Bxg2 30. Qxg2 Nf3+ 31. Kh1 Nxh2 32. Rxf7 Nf3+ {
0-1 (32) Studer,N (2579)-Nepomniachtchi,I (2789) Chess.com INT 2021}) 6. b4 Ng6
7. Bb2 a5 8. b5 Ncxe5 9. Nxe5 Nxe5 10. Bxd4 Nxc4 11. e3 Be6 {[#]} 12. Qc1 $146
({Predecessor:} 12. Qc2 Nd6 13. Bd3 Qg5 14. Nc3 Qxg2 15. O-O-O Qh3 16. Kb1 a4
17. Ne4 Qh5 18. Qxc7 Qd5 19. Qc2 Nxb5 20. Bxb5+ Qxb5+ 21. Ka1 Rc8 22. Qb2 Qxb2+
23. Bxb2 Rc6 24. Rd4 b5 25. Rhd1 Be7 26. Nd6+ Bxd6 27. Rxd6 Rxd6 28. Rxd6 O-O
29. Rb6 Bc4 30. Be5 f6 31. Bd6 Rd8 32. Rb8 Rxb8 33. Bxb8 Kf7 34. Kb2 Ke6 35. e4
Bd3 36. f3 Be2 37. f4 Bd3 38. e5 f5 39. Kc3 Bc4 40. Kd4 h6 41. h4 {1/2-1/2 (41)
Gelfand,B (2738)-Morozevich,A (2770) Astana 2012}) 12... Nd6 13. Nd2 Nf5 14.
Bc3 Be7 15. Be2 O-O 16. O-O Re8 17. a4 c6 18. Rd1 Qc7 19. bxc6 bxc6 20. Qc2 Bb4
21. Nf3 Qe7 22. Bd3 Bxc3 23. Qxc3 Nh4 24. Nxh4 Qxh4 25. Qxc6 g6 26. Bb5 Red8
27. Qb6 Rxd1+ 28. Rxd1 Qb4 29. h3 Rc8 30. Qd6 h5 31. Kh2 Qb2 32. Rd2 Rc2 33.
Qd8+ Kh7 34. Rxc2 Qxc2 35. f4 Qe4 36. Qxa5 Qxe3 {1.22}) 1... d5 2. d4 Nf6 3.
Bf4 a6 4. e3 e6 5. g4 Bb4 6. Nge2 O-O 7. a3 Be7 8. g5 {This line is
recommended in Simon Williams' book on the Jobava London System (into which
this transposes) but only mentions 8...Nh5.} Nfd7 {[#]} 9. e4 $146 ({
Predecessor:} 9. h4 c5 10. Bg2 Nc6 11. Rg1 Re8 12. h5 cxd4 13. exd4 Bxg5 14.
Bxg5 Qxg5 15. Bxd5 Qh6 16. Bf3 e5 17. Bxc6 bxc6 18. Qd2 Qxd2+ 19. Kxd2 Nf6 20.
dxe5 Rxe5 21. h6 Bg4 22. Nf4 g6 23. Rae1 Rxe1 24. Rxe1 Kf8 25. Nd3 Bf5 26. Ne5
Rd8+ 27. Kc1 Re8 28. Kd2 c5 29. f3 Ng8 30. Na4 f6 31. Nc4 Rxe1 32. Kxe1 Bxc2
33. Nxc5 Nxh6 34. Ne3 Bb1 35. Nxa6 Nf5 36. Nxf5 Bxf5 37. b4 Ke7 38. Nc5 Kd6 {
Tologontegin,S (2358)-Aleksandrov,A (2574) Cheliabinsk 2021 1/2-1/2}) 9... Bxg5
10. Rg1 Bxf4 11. Nxf4 Qh4 12. Qf3 dxe4 13. Qxe4 Qh6 14. Qe3 Nc6 15. O-O-O Ne7
16. Bd3 Nf6 17. Kb1 Ng6 18. Nce2 Re8 19. Bxg6 fxg6 20. Qe5 Rf8 21. Qxc7 Qxh2
22. f3 Qf2 23. Rgf1 Qh4 24. Rh1 Qf2 {0.00} *