Alexander Kostiuchenko vs Semyon Gershman (1964)

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Alexander Kostiuchenko vs Semyon Gershman
Ukrainian Championship (1964), Kiev URS, rd 6, Apr-21
Hungarian Opening: General (A00) · 1/2-1/2

ANALYSIS [x]

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May-04-23		Straclonoor: What's a game! click for larger view <26...Rxe4> good move but 26....Ba6!! best one Analysis by Stockfish 070222: 1. -+ (-10.07): 26...Ba6 27.Rxb6 Bxe2 28.Re1 Nxb6 29.Rxe2 Be7 30.h3 c4 31.Nc3 Bb4 32.Rb2 Bxc3 33.Rxb6 Rd1+ 34.Kh2 Bxe5 35.Rc6 c3 36.h4 R1d2 37.f4 c2 38.fxe5 h5 39.Kh3 R8d4 40.Rc8+ Kh7 41.Bf1 g5 42.hxg5 Kg6 43.Rc7 Kxg5 44.Rxf7 Rd1 45.Rc7 R4d2 2. -+ (-8.04): 26...Rxe4 27.Rxb6 Rxe2 28.Rxb7 Rxe5 29.gxh4 Nf4 30.Rfb1 g6 31.Bf1 Kg7 32.R7b5 Rd2 33.R5b2 Ne2+ 34.Kg2 Rxb2 35.Rxb2 Nd4 36.Bd3 Rh5 37.Kg3 Nf5+ 38.Bxf5 Rxf5 39.Rb7 Rd5 40.Rc7 Rd3+ 41.Kg2 Rc3 42.Rc8 h6 43.Rc6 Kf6 44.Rc7 Rc4 45.Kg3 Rc1 46.Kg2 Rc3 47.Rc6 Rc4 48.Rc7 h5 49.Kg3 Rg4+ 50.Kh3 click for larger view <28....Bxe4?> why not 28....Qxb5! or Nxb5! with big advantage? Analysis by Stockfish 070222: 1. -+ (-8.92): 28...Qxb5 29.Qxh7+ Kf8 30.Qh8+ Ke7 31.Qxh4+ Kd7 32.Bxb7 Ne2+ 33.Kg2 Qxb7+ 34.f3 Nc3 35.Qh7 Kc6 36.Qc2 Nd5 37.Kh1 Nb4 38.Qg2 Kb6 39.h4 Rd3 40.g4 Qd5 41.h5 Rd2 42.Rf2 Rd1+ 43.Rf1 Qd3 44.Rxd1 Qxd1+ 45.Kh2 c4 46.Qg1+ Qxg1+ 47.Kxg1 c3 48.Kf2 c2 49.Ke3 c1Q+ 50.Ke2 Qc5 51.Kd1 Qxe5 2. -+ (-7.65): 28...Nxb5 29.Qxh7+ Kf8 30.Qh8+ Ke7 31.Qxh4+ Kd7 32.Bxb7 Qxb7 33.Rb1 Qc6 34.Qa4 Nd4 35.Rb7+ Ke8 36.Qxc6+ Nxc6 37.Rc7 Nxe5 38.Rxc5 Rd5 39.Rc1 Rd2 40.Rc3 Rd1+ 41.Kg2 Ke7 42.Re3 Ng4 43.Re2 Nf6 44.h4 g6 45.f3 Kf8 46.g4 Rd3 47.Re1 Nd5 48.Kg3 Kg7 49.Re5 Ra3 50.h5 gxh5 click for larger view <33.Qh6> Second line of SF analysis, 33.Qe3! - first Analysis by Stockfish 070222: 1. +- (8.52): 33.Qe3 Ne4 34.f3 Bc4 35.Rb8+ Kg7 36.fxe4 Bxf1 37.Kxf1 Rd8 38.Rb7 Re8 39.Qf4 Kf8 40.Ke1 Kg8 41.Kd2 c4 42.Kc2 h5 43.Ra7 Kf8 44.Kc3 Kg8 45.Rc7 Kf8 46.Rb7 Kg8 47.Kc2 Kf8 48.Qe3 Kg8 49.Qa7 Kf8 50.Rc7 c3 51.Rb7 g5 52.Rc7 h4 53.gxh4 Kg7 2. +- (5.33): 33.Qh6 Rb4 34.Qc1 Ne4 35.Rd1 h5 36.Rxb4 cxb4 37.Qc8+ Bf8 38.Rxd5 exd5 39.e6 Nd6 40.exf7+ Nxf7 41.Qe6 Kg7 42.Qxd5 Nh6 43.Qb7+ Kg8 44.Kg2 Nf5 45.Qd5+ Kg7 46.Qd7+ Kg8 47.Qb7 Nh6 48.Qb6 Kh7 49.Qc7+ Kg8 50.Qe5 Ng4 51.Qf4 Kg7 52.h3 Nh6 53.Qe3 Kh7 54.Qa7+ Kg8 55.Qa8 click for larger view <35.Rd1?> Now it's quite wretched! 35.f3! and 35.Rb8 keeps advantage for white Analysis by Stockfish 070222: 1. +- (13.03): 35.f3 Rc4 36.Qe3 Nd6 37.exd6 Bxd6 38.Ra1 h6 39.Ra7 g5 40.Rb6 Bf4 41.gxf4 Rxf4 42.Qxc5 Rxf3 43.Rb8+ Kg7 44.Qd4+ Kg6 45.Rg8+ Kh5 46.Qg7 Kg4 47.Qxh6 f6 48.Rh8 e5 49.Ra4+ e4 50.h3+ Kg3 51.Qh5 Kf4 52.Qg4+ Ke5 53.Re8+ Kd6 54.Ra7 Kc5 55.Rc8+ Kb4 56.Rb8+ Kc5 2. +- (8.61): 35.Rb8 Kg7 36.Rxf8 Nd2 37.Qxc5 Nf3+ 38.Kh1 Nxe5+ 39.f3 Nxf3 40.Rxf3 Bxf3+ 41.Kg1 Bd5 42.Qe7 e5 43.Rb8 Rd1+ 44.Kf2 Be6 45.Qf8+ Kf6 46.Qh8+ Kf5 47.g4+ Ke4 48.Qf6 Rd2+ 49.Ke1 Rc2 50.Rb5 Bd5 51.Rb4+ Bc4 52.Qh4 Rg2 53.Qh3 f5 54.Qxg2+ Kd4 55.gxf5 gxf5 click for larger view <37.h4?> final mistake 37.f3! (again!) or 37.Rxd5 exd5 38.f3! white wins Analysis by Stockfish 070222: 1. +- (9.53): 37.f3 h6 38.Rxd5 exd5 39.fxe4 Rxe4 40.Ra2 Rxe5 41.Ra8 Kg7 42.Qb2 Bd6 43.Qb6 Be7 44.Qb8 Kf6 45.Qh8+ Kf5 46.Ra2 Bd6 47.Rf2+ Ke4 48.Qxh6 Re6 49.Qh4+ Kd3 50.Qg5 d4 51.Qd2+ Kc4 52.Qa2+ Kc3 53.Rc2+ Kd3 54.Qc4+ Ke4 55.Rf2 Ke5 56.Qe2+ Kd5 57.Qf3+ Re4 58.Qxf7+ Kc6 59.Rf6 d3 60.Qxg6 Re1+ 61.Kf2 Re2+ 62.Kf3 2. +- (7.81): 37.Rxd5 exd5 38.f3 Bg7 39.fxe4 Bxe5 40.Kg2 Rxe4 41.Ra2 Rb4 42.Ra7 Rb2+ 43.Kh3 Rb8 44.Qxc5 Rf8 45.Qxd5 Bf6 46.Qd6 Kg7 47.Ra6 Bb2 48.Kg2 Bc3 49.Qc7 Bf6 50.Qf4 Bc3 51.Qc4 Bf6 52.Ra7 Be5 53.Rb7 h6 54.Qc5 Bf6 55.Qd5 Kg8 56.Qd6 Bc3 57.Qc6 Bg7 58.Qc1 h5

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