[Event "URS-ch34 Final"]
[Site "Tbilisi"]
[Date "1967.01.12"]
[Round "9"]
[White "Polugaevsky, Lev"]
[Black "Vasiukov, Evgeni"]
[Result "1-0"]
[ECO "E91"]
[Annotator "V.Poghosyan"]
[SetUp "1"]
[FEN "1R6/4p1k1/6pp/8/4r2P/6K1/1P3PP1/8 w - - 0 41"]
[PlyCount "33"]
[EventDate "1966.12.29"]
[EventType "tourn"]
[EventRounds "21"]
[EventCountry "URS"]
[SourceTitle "URS-ch"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

{[%evp 0,33,121,142,175,196,188,170,166,133,234,219,276,292,290,327,325,325,332,325,325,325,325,368,426,484,484,496,505,505,505,505,527,527,537,554]} {[#]} 41. b4 e5 {Shereshevsky, Endgame Strategy, 2022 -" In his comments, Polugaevsky wrote that during the adjourment he found out that White could fetter Black’s rook and king by playing his b-pawn to b7, winning the e5-pawn next by a triangulation of his king. But to win, he still needed to create a second passed pawn on the f-file. Therefore, Black’s g6-pawn had to be removed by playing h4-h5". Polugaevsky - "During the game, I was going to play h4-h5 on the next move, but during the analysis I was convinced that my hopes were unrealizable. After all, now it is Black’s turn, and before placing the rook in the rear of the b-pawn, he could radically prevent all aggressive thoughts of the opponent on the kingside, by playing 42...h5!."} 42. b5 ({Shereshevsky "These notes by Grandmaster Lev Polugaevsky are already half a century old. Alas, today’s computer programs easily detect a ‘hole’: 42.h5 gxh5 43.b5 Rf4! 44.f3 h4+ 45.Kf2 h3! 46.gxh3 e4 47.Ke3 exf3! with a draw".} 42. h5 gxh5 $1 43. b5 Rf4 44. f3 h4+ 45. Kf2 h3 46. gxh3 e4 47. Ke3 exf3 $11) {Shereshevsky, Thinking (2025) - "42.b5?! Now Vasiukov, instead of 42...h5! with a drawn position, replied: 42...Rb4".} 42... Rb4 $11 {VP This is not a decisive mistake} 43. h5 gxh5 44. b6 (44. Kf3 {Shereshevsky - Correct was 44.Kf3!. For example, such a variation is possible: 44...Rb3+ 45.Ke4 Rb2 46.Ke3 Rb3+ 47.Kd2 Rb2+ 48.Kc3 Rxf2 49.Re8, and White should win. VP =} h4 $1 ({Shereshevsky} 44... Rb3+ $2 {VP ?} 45. Ke4 $1 Rb2 46. Ke3 Rb3+ 47. Kd2 Rb2+ 48. Kc3 Rxf2 49. Re8 $18) 45. b6 {Transposition} h3 $1 {Transposition} ({Polugaevsky} 45... Kg6 46. b7 $1 Kh5 47. g4+ $1 hxg3 48. fxg3 $1 $18) 46. gxh3 Kg6 $1 47. Ke3 (47. b7 Kh5 48. Ke3 Kh4 $1 49. Kd3 Kxh3 50. Kc3 Rb1 51. Kc4 h5 $1 (51... e4 $2 52. Kd5 Rb4 53. Kc6 Rc4+ 54. Kb5 $18)) 47... Kh5 48. Kd3 Kh4 $1 49. Kc3 Rb1 $1 50. Kc4 Kxh3 51. Kd5 h5 $1 52. Kxe5 h4 53. f4 Kg3 (53... Kg2 $2 54. b7 $1 Kf3 55. f5 $1 Rb5+ 56. Ke6 $1 Rb6+ 57. Kd5 h3 58. f6 $1 Rxf6 59. Rh8 $1 $18) 54. f5 h3 55. f6 h2 56. Rg8+ Kf3 $1 57. f7 h1=Q $1 58. f8=Q+ Ke2 $1) 44... h4+ (44... Rb3+ {Shereshevsky "Polugaevsky had found a ‘surprising, study-like draw’ with 44...Rb3+! 45.f3 e4 46.b7 (46.Kf2 Rb2+ 47.Ke3 Rxg2 48.b7 Rb2 49.fxe4 h4, and the h4-pawn becomes too strong) 46...h4+ 47.Kf2 h3 and here also, the h-pawn saves Black, whilst after 47.Kxh4 e3 48.Kg3 ‘he has the extremely subtle 48...Rb4!!, and White is in zugzwang."} 45. Kh4 {"Therefore White would have to meet 44...Rb3+ by trusting to luck – 45.Kh4. However, after 45...e4! (also possible is 45...Rb2) the tempting 46.Kxh5 leads to a draw after the quiet 46...Rb4!!, and White is condemned to fight without his king, because it cannot cross the “mined” 4th rank. The thematic 47.f4 is one tempo too late: 47...e3 48.f5 e2 49.Re8 Rxb6 50.Rxe2 Rb1. Nor is anything changed by 47.g4: the advance g4-g5 is not possible because of the reply 47...Rb5+!!".} (45. f3 e4 $1 46. b7 (46. Kf2 Rb2+ 47. Ke3 Rxg2 48. b7 Rb2 $1 49. fxe4 h4 $1 $11) 46... h4+ 47. Kxh4 (47. Kf2 h3 $11) 47... e3 48. Kg3 Rb4 $11 ({VP} 48... Rb1 49. f4 e2 $1 50. Re8 $1 $11) 49. f4 e2 $1 $11) 45... e4 $2 {VP ? Given ! by Polugayevsky} ({Polugaevsky} 45... Rb2 $1 $11 {VP !}) 46. Kxh5 $2 ({VP} 46. b7 $1 Rb5 (46... Kh7 47. f4 $1 e3 48. Kg3 $1 $18) 47. f4 e3 48. Kg3 $1 e2 49. Kf2 $1 Rb2 50. f5 $18) 46... Rb4 $2 {VP ? Given !! mark by Polugaevsky who believs that it draws.} ({VP} 46... Rb2 $1 $11) 47. g4 ({Polugaevsky} 47. f4 $2 {VP ?} e3 $1 48. f5 e2 49. Re8 Rxb6 50. Rxe2 Rb1 $1 $11) ({VP} 47. Rb7+ Kf6 48. Rh7 Rb2 49. b7 (49. Rxh6+ $6 Kg7 50. g4 Rxf2 51. Rc6 $1 Rb2 (51... e3 52. b7 Rb2 53. Rc7+ $1 Kf6 54. g5+ $1 Ke5 55. g6 Kd6 56. Rc3 $1 e2 57. Re3 $1 $18) 52. Rc7+ $1 Kf6 53. g5+ $1 Kf5 54. Rf7+ $1 Ke6 55. Kg6 $1 Rb1 56. b7 Rb2 57. Kg7 e3 58. Rf3 $1 Rxb7+ 59. Kh6 $1 Rb3 60. g6 $1 e2 61. g7 $1 Ke7 (61... e1=Q 62. g8=Q+ Kd6 63. Qd8+ Kc6 64. Rf6+ Kc5 65. Rf5+ Kc4 66. Qd5+ Kb4 67. Qa5+ Kc4 68. Rf4+ Kd3 69. Qxe1 Rb6+ 70. Kg5 Rb5+ 71. Kg4 Rc5 72. Qg3+ Kc2 73. Rf2+ Kb1 74. Qd3+ Ka1 75. Qf1+ Rc1 76. Qxc1#) 62. g8=Q Rxf3 63. Qg7+ $18) 49... e3 50. fxe3 (50. Rxh6+ Kg7 51. Rg6+ Kh7 52. fxe3 Rxb7 53. Re6 Rb5+ 54. Kg4 Kg7 55. Kf4) 50... Rb1 51. e4 Rh1+ 52. Kg4 Rb1 53. Kf4 Rf1+ 54. Ke3 $18) 47... Rb5+ {Given !! mark by Polugaevsky who beleived that this poistion is drawn.} (47... Rb2 48. g5 hxg5 49. Kxg5 $18) {VP} 48. Kh4 $1 Rb3 (48... Rb4 49. Kg3 Rb2 50. Kf4 Rxf2+ 51. Kxe4 $18) 49. g5 $1 $18) 45. Kf3 {Transposition} Kh7 $2 ({VP} 45... h3 $1 $11 {Transposition}) 46. b7 ({Müller Lamprecht 2001} 46. Ke3 $6 h3 47. gxh3 $1 Kg6 48. b7 Kh5 49. Kd3 Kh4 50. Kc3 $1 Rb1 51. Kc4 {VP White wins} Kxh3 (51... e4 52. Kd5 Rb4 53. Kc5 Rb1 54. Kc6 Rc1+ 55. Kd5 $18) 52. Kd5 $1 h5 53. Kxe5 $1 h4 54. f4 $1 Rb5+ 55. Ke4 Rb4+ 56. Kd3 Kh2 57. f5 Rb6 58. Kd4 h3 59. Kc5 $18) 46... Kg7 47. Ke3 e4 48. Kf4 Kh7 49. Ke5 Kg7 50. Kd5 Rb2 51. Kxe4 Rb4+ 52. Kd3 Rb3+ 53. Kc4 Rb1 54. f4 Rc1+ 55. Kd3 Rb1 56. f5 Rb6 57. f6+ 1-0

