A45: Trompowsky Attack
1.d4 g6 2.e3 Bg7 3.Bd3 Nf6 4.Nd2 0-0 5.f4 [5.Ngf3 d6= ]
5...b6 6.Ngf3= Bb7 7.0-0 d5 8.Ne5 Nbd7 9.Qf3 c5 10.c3 c4? this could have been immediately punished [10...Qc7= ]
11.Bc2? mutual blindness [11.Bxc4+/- ]
11...a5 12.a4 here it doesn't quite work [12.Ndxc4? Ba6~~ ]
12...Ne8? [12...Qc7 13.Qh3+/= ]
13.Ndxc4! dxc4? [>=13...Nxe5 14.Nxe5 Nd6+/- ; the most testing line is 13...Ba6?! 14.Nc6 Qc7 15.Nxe7+ Kh8 16.b3 dxc4 17.Qxa8 where White has to be careful with his queen 17...Bb7 18.Qa7 cxb3 19.Bxb3 Nef6 20.Ba3! absolutely necessary (20.d5?! has a labyrinth of compliations 20...Nc5 21.Ba3 Nxb3 22.Rab1 Nd2 23.Qxb6 Qxb6 24.Rxb6 Nxf1 25.e4! Nxe4 26.Rxb7 Ne3 27.Nc6 Nxd5 the d-pawn is too dangerous 28.Bxf8 Bxf8=/+ ) 20...Ra8 21.Bd6 Qxd6 22.Qxb7 Rb8 23.Nxg6+ fxg6 24.Qf3+- and White has enough extra pawns to win]
14.Qxb7+- Nxe5 15.fxe5 e6?! not the greatest defence [15...Rb8 16.Qa6 Qc7+- ]
16.b3 Rb8 17.Qe4 f5 18.exf6 Rxf6 19.Rxf6 Qxf6 20.Ba3 Qf5 21.bxc4 Nf6 22.Qxf5 exf5? [22...gxf5+- better holds of White's center pawns]
23.Bd6 [23.Rb1+- is better]
23...Rc8 24.Be5 Ng4!? maybe not best, but it has a point [>=24...Ne4 25.Bf4 Nxc3+- ]
25.Bxg7? White's eagerness to trade backfires - White has a lot of pawns hanging now [>=25.Bf4 Bh6 26.Re1+- ]
25...Kxg7+/- 26.e4 Ne3 27.Bd3?! [27.Bb3 fxe4 28.Kf2 Nxc4 29.Bxc4 Rxc4 30.Ra3+- and White is in good shape]
27...Nxc4? Black misses a great chance to get back into the game [>=27...fxe4 28.Bxe4 Rxc4+/= ]
28.exf5+- Nb2 29.Be4?! [>=29.Bb5 Rxc3 30.fxg6 Kxg6 31.d5+- ]
29...Rxc3+/= 30.fxg6 hxg6 31.Ra2 Rc1+ 32.Kf2 Nd1+ 33.Kf3 Nc3 [33...Rc4+/= ]
34.Rc2!+/- Rf1+ 35.Ke3 Nxe4 36.Kxe4 Rb1 37.Rc4 [37.d5 Kf6 38.Rc6+ Kf7+- ]
37...g5 [37...Rb2 38.d5 Re2+ 39.Kd4+/- ]
38.d5 [38.Kf5 Kf7+- ]
38...b5 [38...Kf6 39.Rc6+ Ke7 40.h3+/- ]
39.axb5+- Rxb5 40.d6?! the pawn strays a ltitle too far [>=40.Rc7+ Kf6 41.Rc6+ Ke7 42.Ra6+- ]
40...Kf7 41.Rd4?! [41.d7 Ke7 42.Rc7+/= ]
41...Rb4!= this move should have saved the game
42.Rxb4 axb4 43.Kd4 Ke6 44.Kc4 Kxd6 45.Kxb4 Kd5 because of Black's King position he should be able to hold this game
46.Kc3 Ke4 47.Kd2 Kf4? the difference because a draw and a loss is very subtle in this ending [>=47...Kd4! 48.h3 Ke4= and Black draws, i.e. 49.Ke2 Kf4 50.Kf2 g4 51.g3+ Kg5 52.h4+ Kf5 53.Ke3 Ke5 54.h5 Kf5 55.h6 Kg6 56.Kf4 Kxh6 57.Kxg4 Kg6 58.Kf4 Kf6 59.g4 Kg6= and Black holds]
48.Kd3+- mate in 24 according to Fritz
48...g4 49.Kd4 Kf5 50.g3 Kg6 51.Ke4 Kg5 52.Ke5 Kh6 53.Kf5 Kg7 54.Kxg4-+ with this second pawn a computer is no longer necessary to understand what's going on
54...Kg6 55.h3 Kh6 56.Kf5 Kh5 57.g4+ Kh6 58.Kf6 Kh7 59.g5 Kg8 1-0