g15713: E. 1.0
Black to move at 23
 click for larger viewChess 'User: perfidious comments:
<"One would have thought that, after Tal's 23rd move, even with an extra pawn in the double rook ending, his winning chances were small; but this game provides an object example of the idea that in such endings, in which both sides possess weaknesses, active play is of utmost importance."> Stockfish gives the following analysis after 25-minute evaluation 1) =0.00 (42 ply) 23...Re6 24.Kg2 Rae8 25.Re1 Rh6 26.Rd5 Rf6 27.e5 dxe5 28.Rexe5 Ref8 29.Re2 Rf4 30.Rc5 Rg4+ 31.Kh3 Rff4 32.Rc8+ Kf7 33.Rb2 Rh4+ 34.Kg3 Rhg4+ 35.Kh3 2) =0.00 (42 ply) 23...Re5 24.Rf5 Rxf5 25.exf5 Rc8 26.h6 gxh6 27.Kf2 Kf7 28.Ke3 Rc5 29.Kd3 Ke7 30.Re4+ Kf7 31.Re6 d5 32.cxd5 Rxd5+ 33.Ke4 Ra5 34.Rxh6 Rxa4+ 35.Ke5 Ra5+ 36.Kf4 Rxa2 37.Rxh7+ Kf6 38.Rxb7 Ra4+ 39.Kg3 Kxf5 40.Rf7+ Kg6 41.Rc7 Ra2 42.h4 Ra3+ 43.Kg4 Ra4+ 44.Kh3 Ra3+ 45.Kg4 3) +0.08 (41 ply) 23...Rac8 24.h6 gxh6 25.Rf6 Re7 26.Rfxd6 Rce8 27.Rd8 Rxe4 28.Rxe8+ Rxe8 29.Kf2 h5 30.Kf3 Re7 31.Rd5 h4 32.h3 Kf7 33.c5 Kg6 34.Kf4 Kf7 35.Kf5 Ke8 36.Rd4 Rc7 37.Rxh4 Rxc5+ 38.Ke6 Rc6+ 39.Kd5 h6 40.Rb4 Rc7 41.Rb2 Kd8 42.h4 Kc8 43.Rb6 Rc2 44.Rxh6 Rxa2 45.Rh8+ Kd7 Line 3 could continue 46. h5 Rxa4 and one has
E. 1.1
White to move
 click for larger viewSyzygy says it is a tablebase draw
'https://syzygy-tables.info/?fen=7R/... Game continued:
23...Rac8 24.Rb1 Rc5 25.Rxb7
E. 1.2
Black to move at 25
 click for larger viewComputer annotated analysis says better is
25...Rf8 26.Rb2 Rf6 27.Rf2 Re6 28.h6 gxh6 29.Kg2 Ra5 = +0.18 (28) ply Game continued:
25...Rxh5 26.Rxd6 Rf8 27.Rb3
E. 1.3
Black to move at 27
 click for larger viewI would have preferred 27...Rg5+ 28. Rg3 Ra5
E. 1.4
White to move
 click for larger viewStockfish gives the following analysis after 25-minute evaluation 1) +0.55 (35 ply) 29.Rc6 g6 30.a3 Rf4 31.Rc8+ Kg7 32.Rc7+ Kf6 33.Rxh7 Rxe4 34.Rc7 Rxa4 35.Rc6+ Re6 36.Rxe6+ Kxe6 37.Kf2 Ke7 38.Kg2 a5 39.Kh3 Rxc4 40.Rxg6 Syzygy says it is now a tablebase draw
'https://syzygy-tables.info/?fen=8/4... Game continued with 27...Rh4 28.Rd4 Rg4+ 29.Rg3 Rgf4 30.h3 E. 1.5
Black to move
 click for larger viewStockfish gives the following analysis after 25-minute evaluation 1) +0.18 (34 ply) 30...Rf1+ 31.Kh2 Rc1 32.Rg5 Rc3 33.Kg2 Rb8 34.Rf5 h5 35.Rd2 Rxc4 36.Re2 h4 37.a5 Re8 38.Kf3 Re6 39.Rf4 Ra4 40.Rxh4 Ra3+ 41.Kf4 Kf7 42.Rh5 Rf6+ 43.Kg4 Rg6+ 44.Kh4 Rgg3 45.Rc5 Rxh3+ 46.Kg5 Ke6 47.Rg2 Kd6 48.Rd5+ Ke6 49.Rg4 Rh6 50.Kf4 Rf6+ 51.Kg5 Rxa2 Game continued with 30...g6 and Black eventually lost;
23...Rac8 was not the losing move. |