[Event "CCC13: Semifinals (10|5)"] [Site "?"] [Date "2020.04.03"] [Round "1"] [White "Stockfish"] [Black "Komodo"] [Result "1-0"] [ECO "E60"] [Annotator "Bojkov,Dejan"] [PlyCount "261"] [EventDate "2020.??.??"] [Source "ChessBase"] [TimeControl "600+5"] {[%evp 0,261,16,28,29,-16,63,17,15,17,19,19,20,20,33,-2,36,35,37,34,13,18,72, -9,32,23,42,20,-1,-29,14,-35,-26,-26,-25,1,0,3,11,7,7,7,10,10,7,12,11,3,3,1,-6, 1,24,-11,7,-3,26,5,29,-3,29,7,31,-43,-36,-19,-10,-26,-19,0,0,0,0,0,0,0,0,0,0,0, 0,5,0,0,0,0,0,0,0,0,0,8,7,12,18,21,21,24,24,24,24,27,24,24,36,33,34,33,40,40, 40,27,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40,40, 40,34,51,40,40,34,47,40,40,47,47,40,47,47,47,47,47,47,47,47,47,47,47,47,47,47, 60,55,55,55,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57,57, 57,57,57,57,57,57,57,57,57,57,57,0,0,0,0,0,0,0,0,18,28,28,47,68,78,70,71,67,72, 102,98,115,103,103,103,97,136,129,137,152,129,113,138,138,161,151,158,133,181, 197,274,306,290,0,428,1914,29981,29982,29983,29984,29985,29986,29987,29988, 29989,29990,29991,29992,29993,29994,29995,29996,29997,29998,29999,-30000]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c5 7. d5 e6 8. O-O exd5 9. cxd5 Re8 10. Re1 a6 11. a4 Nbd7 12. Bf4 ({Two top grandmasters recently discussed the consequences of the line:} 12. e4 Ng4 13. Nd2 Nge5 14. Re3 Nb6 15. Qf1 a5 16. h3 c4 17. Kh2 Bd7 18. f4 Nd3 19. Nxc4 Nxc1 20. Rxc1 Nxc4 21. Qxc4 Qb6 {Ding,L (2805)-Navara,D (2734) Prague 2019}) 12... Ng4 13. a5 Nde5 14. Ne4 h6 15. Qc1 g5 16. Bxe5 Nxe5 17. Nxe5 Bxe5 18. Nd2 Qf6 $146 {A novelty upon (not-surprisingly) an email game.} ({An earlier, also engine-generated game saw:} 18... Bd7 19. Nc4 Qe7 20. Ra3 Bg7 21. Re3 Qf8 22. Rb3 Bb5 23. e4 Rab8 24. Bh3 Bd4 25. Bf5 Qe7 {and eventually ended in a draw, Malchev,E (2437)-Fischer, W (2439) ICCF email 2018}) 19. Nc4 Bd7 20. Ra3 (20. Nb6 {only pushes the bishop to a better position:} Bb5) 20... Bb5 21. Nxe5 Rxe5 {The opening is over, and Black seemingly cannot complain of the outcome. In the Benoni, the trades give Black enough room to maneuver and here he (sorry, it) can easily build kingside blockade.} 22. e4 Rae8 23. Rae3 {White's play is on the kingside, therefore:} g4 $1 24. h3 ({The opening of the opposite wing only helps Black:} 24. b4 cxb4 25. Qb1 Rc8 26. Qxb4 Rc2) 24... h5 25. Qc3 {Now both sides prepare for the opening of the f-file.} Qg7 26. h4 ({Not much is changed after:} 26. Kh2 R8e7) 26... R8e7 27. Kh2 {A curious position. Black does not have such a large choice as it seems.} Qh8 ({To start with, he cannot move the rooks:} 27... Re8 $6 28. b4 cxb4 29. Qxb4 Qf6 30. f4 gxf3 31. Rxf3 Qe7 32. Qd2 {is advantageous for the first player as Black lost stability on the kingside.} ) ({More interesting seems the human approach to clarify things once and for all with:} 27... f5 $5 28. exf5 Rxe3 29. fxe3 Qxc3 30. bxc3 Kf7 {White won a pawn, but after:} 31. e4 Kf6 {followed by Kf6-e5 and Re7-f7, the position seems a fortress to me.}) (27... Kh8 {is not as good as the game move as the pawn on h5 is not sufficiently defended in the line:} 28. f4 gxf3 29. Bxf3) 28. Qd2 Qg7 29. Qc3 Qh8 30. Qd2 {Now that is interesting $1 Stockfish repeats the moves once, like a human being. Is he trying to win some time on his clock $2 Or frustrate his opponent $4} Qg7 31. Qd1 f5 {And Black does not stand the pressure and starts attacking $1 This is what I would have written maybe, had this been played by mere mortals.} 32. Qc1 ({Not yet:} 32. exf5 $6 Rxe3 33. fxe3 Qxb2) 32... fxe4 33. Rxe4 Rxe4 ({More accurate than} 33... Bd3 34. Rxe5 Rxe5 35. Qd2 ({Not much yields:} 35. Rxe5 Qxe5 36. Qh6 Kf7 {as the squares around the king are well defended.}) 35... Bb5 36. Rxe5 Qxe5 37. Qh6 {and without the black bishop on the b1-h7 diagonal this is unpleasant for Black.}) 34. Rxe4 Rxe4 35. Bxe4 Qe5 36. Qf4 $1 {A very clever decision.} ({Nothing promises:} 36. f3 Be2) 36... Qxf4 37. gxf4 {The endgame is difficult for Black as the majority of his pawns are fixed on light squares and can be attacked. This is far more important than the doubled f-pawn that White created himself.} Be8 (37... Bc4 $2 {loses instantly to:} 38. Bg6 Bxd5 39. Bxh5) 38. Bf5 { Eyeing the queenside pawns.} ({Weaker would be:} 38. f3 gxf3 39. Bxf3 Kg7) 38... Bf7 39. f3 $1 ({The moves cannot be transposed as in the line:} 39. Be6 Bxe6 40. dxe6 d5 41. Kg3 d4 {The g4-pawn is a huge obstruction for the white pieces. In particular:} 42. f3 $2 {loses to:} d3 43. Kf2 g3+ $1) 39... gxf3 ({ Just as before, the endgame:} 39... Bxd5 40. fxg4 hxg4 41. Kg3 {favors White thanks to his more active king.}) 40. Be6 {Now White can offer the swap of the bishops.} f2 ({As the pawn endgame after:} 40... Bxe6 41. dxe6 d5 42. Kg3 { Is lost for the second player due to White's better pawns:} Kf8 43. Kxf3 Ke7 44. f5 Kf6 45. Kf4 d4 46. Ke4 Ke7 47. b4 $1) 41. Kg2 Kg7 42. Kxf2 Kf6 43. f5 Be8 44. Ke3 Ke5 45. Bc8 Bb5 ({The a-pawn marches through in the line:} 45... Kxd5 46. Bxb7+ Ke5 47. Bxa6 Kxf5 48. Bb7) 46. f6 $1 {Brilliant $1 the b7-pawn is not going anywhere. It is much more important to gain space for the king.} ( 46. Bxb7 Kxf5 47. Kf3 Ke5 {should be equal as the weaknesses on h5 and d5 level themselves.}) 46... Kxf6 47. Kf4 Be2 48. Bxb7 Bc4 49. Bc6 {Now Stockfish has a chance to hunt the h5 pawn.} Bf1 50. Be8 Be2 51. Ke3 {Forcing the bishop to chose which diagonal to defend.} Bg4 52. Ba4 {The bishop is transferred to the f1-a6 diagonal.} (52. Bb5 $4 {is a tad too soon:} axb5 53. a6 Bc8 54. a7 Bb7) 52... Kg7 $1 {The king hangs around the h5 pawn, thus securing both weaknesses.} (52... Ke5 53. Bb3 {followed by Bb3-c4 changes nothing as Black still needs to defend his kingside in the line:} Kf6 54. Bc4 Bc8 55. Be2 Kg6) 53. Be8 ({Or:} 53. Bb3 Kg6 54. Bc4 Bc8 {defending both weaknesses.}) 53... Kf6 54. Ba4 Kg6 55. Bc6 Bc8 56. Be8+ Kh6 57. Kf4 Bg4 58. Bc6 Kg6 59. Ke3 Bc8 60. Be8+ Kh6 61. Kf4 Bg4 62. Ba4 Kg6 63. Ke3 Bh3 64. Be8+ Kh6 65. Ba4 Kg7 66. Kf4 Kf6 67. Bd1 Kg6 68. Be2 Bc8 {[%CAl Ye2a6,Ye2h5] Ultimately White comes back to this set-up. But how to improve further $2} 69. Bd3+ Kf6 70. Be2 Kg6 71. Bd3+ Kf6 72. Bf1 {Three-step maneuver to force zugzwang.} Kg6 73. Be2 {But this does not seem enough as Black still has this useful move:} Bb7 74. Bd3+ Kf6 75. Be2 Kg6 76. Ke4 Bc8 77. Ke3 Bb7 78. Ke4 Bc8 79. Ke3 {Where is this king going $2} Bb7 80. Kd2 Bc8 (80... Bxd5 81. Bxa6 Kf5 82. Bc8+ Kf4 83. a6 Bc4 (83... Kg3 84. Bb7) 84. Bb7 Bxa6 85. Bxa6 Kg3 86. Kc3) 81. Kc3 Kh6 82. b4 {Ok, you can trade these. ..But how does this help you $2 The weaknesses are defended, the position is blocked...} cxb4+ 83. Kxb4 Kg6 84. Kb3 Bb7 85. Kc4 Bc8 86. Kb3 Bb7 (86... Kf5 {Danny}) 87. Kc3 Kh6 88. Bd3 Kg7 89. Kd4 Bc8 90. Be2 Kg6 91. Bd3+ Kg7 92. Be2 Kg6 93. Kd3 Kh6 94. Ke4 Kg6 95. Kf4 Bb7 (95... Kh6 96. Bd3 $1 Bb7 97. Kf5) 96. Bd3+ Kf6 97. Bc4 Bc8 (97... Kg6 98. Bd3+ Kf6 99. Bf5 {would transpose to the game.}) 98. Bd3 Bb7 99. Bf5 $3 {Unbelievable $1 Stockfish puts his opponent into zugzwang in order to force him to take his pawn $1} Bxd5 100. Bd3 Bb7 101. Bc4 {Now another fine zugzwang play starts.} Kg6 (101... Bc8 {would soon lead to the same.}) 102. Be2 Bc8 (102... Kf6 103. Bxh5 Bc8 104. Be2 Bb7 105. Bd3 Bc8 106. h5 Bb7 107. h6 Bc8 108. Ke3 Bb7 109. Kd4 Kf7 110. Be4) 103. Bf3 $1 {This forces the black bishop out of the c8-a6 diagonal.} Bf5 ( 103... Kh6 104. Be4 $1 {is proper zugzwang.}) 104. Ke3 Bc8 105. Kd4 Bg4 106. Be4+ ({Not:} 106. Bb7 Be2) 106... Kf7 107. Bd3 $1 {The most valuable Black pawn drops, and with it Komodo's hopes fall.} Ke8 ({The line:} 107... Bc8 108. Be2 (108. Kd5 Ke7 109. Kc6 {[%csl Ya6][%CAl Yc6c7]}) 108... Kg6 109. Kd5 { demonstrates the triumph of White's strategy. Without the d5-pawn, White crashes through and wins both the d6- and a6-pawns and the game $1}) 108. Bxa6 Kd8 109. Ke4 {The a6-pawn will keep the black king busy while White takes the second weakness: the h5-pawn.} Kc7 110. Bb5 Kb8 111. Kf4 Kc7 112. Be8 d5 ({Or: } 112... Kb8 113. Kg5 d5 114. Bxh5 {and the white king is the square of the pawn.}) 113. Ke5 Bf3 114. Bb5 Kb7 115. Kd6 Kb8 116. Kc6 {Threatening mate after Kc6-b6, followed by the a5 pawn-march and Bb5-c6.} Ka7 117. Bd3 Kb8 118. Kb6 Be4 119. Bb5 d4 120. a6 d3 ({Or:} 120... Bg2 121. a7+ Ka8 122. Be2 { and the white pawn marches.}) 121. a7+ Ka8 122. Ba6 d2 123. Be2 d1=N 124. Bxd1 Bb7 125. Bxh5 Bc6 126. Bd1 Bh1 127. h5 Bg2 128. h6 Bh1 129. h7 Bd5 130. h8=Q+ Bg8 131. Qxg8# 1-0 [Event "37th European Club Cup"] [Site "chess24.com"] [Date "2022.10.07"] [Round "5.3"] [White "Nihal Sarin"] [Black "Kuzubov, Yuriy"] [Result "1/2-1/2"] [ECO "C77"] [WhiteElo "2673"] [BlackElo "2612"] [Annotator "Sundararajan Kidambi"] [PlyCount "143"] [EventDate "2022.??.??"] [WhiteTeam "India"] [BlackTeam "Ukraine"] [WhiteTeamCountry "IND"] [BlackTeamCountry "UKR"] {[%evp 0,143,21,28,40,33,31,8,25,25,23,-21,13,1,-14,-14,-11,-27,-7,-39,-13,-23, -11,-29,-15,-34,-27,-35,-13,-16,-10,-11,-11,-8,0,-32,-18,-20,-3,-8,25,1,0,-33, -35,-51,-2,-59,-77,-75,-64,-59,-65,-79,-27,-48,-48,-66,-43,-64,-38,-38,-53,-79, 1,-43,-28,-32,-28,-24,-34,-23,0,-18,-26,-26,-26,-26,0,0,18,35,35,2,0,25,28,27, 43,48,48,42,63,76,66,87,83,102,102,111,88,85,101,74,131,113,84,59,59,79,97,97, 72,72,72,89,126,75,104,98,82,84,122,122,122,169,207,247,252,96,92,13,12,13,12, 9,8,10,7,8,7,7,6,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c3 g6 6. O-O Bg7 7. Re1 O-O 8. Nbd2 a6 9. Ba4 Re8 10. Nf1 b5 11. Bc2 a5 12. a4 b4 13. Bg5 h6 14. Bxf6 Bxf6 {[%csl Yb3,Yc4,Yd5]} 15. Ne3 Rb8 16. Bb3 Bg7 17. h4 Rf8 18. g3 {[%csl Yf7][%CAl Yh6h5,Yf3g5]} Kh8 19. h5 $1 g5 20. Rc1 Bd7 21. Bc2 Qc8 22. Nd2 Ne7 23. Ndc4 f5 24. Nxf5 Nxf5 25. exf5 Bxf5 26. Ne3 Bh7 27. d4 { [%CAl Yc2h7]} e4 (27... Bxc2 28. Rxc2) 28. Qd2 Qe8 29. Bd1 c5 30. dxc5 dxc5 31. Qd6 Rc8 32. Bg4 Rc6 33. Qd7 Qxd7 34. Bxd7 Rd6 35. Bb5 Rd2 36. Re2 Rxe2 37. Bxe2 Bg8 38. Bc4 bxc3 39. bxc3 Rb8 40. Bxg8 Kxg8 41. Nf5 (41. Nc4) 41... Rb3 42. Re1 Bxc3 43. Rxe4 Rb6 (43... Rb4 {[%CAl Yc3h8,Yc3a1,Ya5a1]}) 44. Kg2 Kf8 45. Kf3 Bb4 {[%csl Ra4,Ya5,Yc5]} 46. Ke2 Ba3 47. g4 $1 Rb2+ 48. Kd3 Rxf2 49. Nxh6 Bb4 50. Nf5 (50. Kc4 $1 {[%CAl Yc4d5]}) 50... Kf7 {[%csl Ya5,Yc5][%CAl Yf2h2,Yh5h8] } (50... Ra2 51. h6 Kg8 52. Re8+ Kh7 53. Re7+ Kh8 54. Rg7 (54. Kc4 Rxa4 55. Rg7 Bd2+ (55... Be1+ 56. Kd5 (56. Kb3 Rb4+ 57. Kc2 Rc4+ 58. Kd3)) 56. Kd3 {[%CAl Yf5e7,Ye7g6]} Bb4 57. Kc4 Bd2+ 58. Kb5 Rb4+ 59. Kc6 Bc3)) 51. h6 Rh2 52. Kc4 Kg6 {[%csl Yf8,Yg8]} 53. Re6+ Kh7 54. Re7+ Kh8 55. Re8+ Kh7 56. Re7+ Kh8 { [%csl Ra5,Yh6,Yh8]} 57. Kb5 Rh1 58. Re4 {[%CAl Yb4e7]} Kh7 {[%CAl Yh1f1,Yf1f4]} 59. Re7+ Kh8 60. Rc7 {[%csl Yc7][%CAl Yc7h7,Yc7c4]} Rg1 61. Nd6 {[%csl Ya5] [%CAl Yd6c4]} Rh1 62. Rc6 Kh7 63. Ne4 Rxh6 64. Nxg5+ (64. Rxh6+ $1 Kxh6 65. Nxc5 Kg6 66. Nb7 Kf6 67. Nxa5 Be1 68. Nc6 Ke6 69. Nd4+ {[%csl Yf6,Yg5][%CAl Yd4f3,Ya4a7]} Kd6 70. Nf3) 64... Kg7 65. Rxh6 Kxh6 66. Ne4 Kg6 67. Nxc5 Kg5 68. Nb3 Kxg4 69. Nxa5 Be1 70. Nc4 Kf5 71. a5 Bxa5 72. Nxa5 1/2-1/2 [Event "96: World Championship Match, Moscow"] [Site "?"] [Date "1984.10.05"] [Round "9"] [White "Karpov, A.."] [Black "Kasparov, G.."] [Result "1-0"] [ECO "D34"] [Annotator "Garry Kasparov"] [PlyCount "139"] [EventDate "1984.??.??"] [SourceTitle "Kasparov on Kasparov 1"] [Source "Everyman Chess"] [SourceDate "2012.11.28"] [SourceVersion "1"] [SourceVersionDate "2012.11.28"] [SourceQuality "1"] {[%evp 0,28,58,21,31,-7,-16,-9,45,32,28,23,10,-12,21,12,26,20,23,26,46,15,34, 24,62,68,55,50,53,-19,37]} 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. Nc3 Nc6 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Qb3 Na5 13. Qc2 Bg4 14. Nf5 Rc8 15. Bd4 Bc5 16. Bxc5 Rxc5 17. Ne3 Be6 18. Rad1 Qc8 19. Qa4 Rd8 20. Rd3 a6 21. Rfd1 Nc4 22. Nxc4 Rxc4 23. Qa5 Rc5 24. Qb6 Rd7 25. Rd4 Qc7 26. Qxc7 Rdxc7 27. h3 h5 28. a3 g6 29. e3 Kg7 30. Kh2 Rc4 31. Bf3 b5 32. Kg2 R7c5 33. Rxc4 Rxc4 34. Rd4 Kf8 35. Be2 Rxd4 36. exd4 Ke7 37. Na2 Bc8 38. Nb4 Kd6 39. f3 Ng8 40. h4 Nh6 41. Kf2 Nf5 42. Nc2 f6 43. Bd3 g5 44. Bxf5 Bxf5 45. Ne3 Bb1 46. b4 {All the attention of the two sides is focused on the kingside – the only part of the board where the white king may be able to break through. Is Black able to prevent this?} gxh4 $2 ({In expectation of the automatic reply} 46... gxh4 47. gxh4 {(the basis of our analysis), after which White cannot break through:} Bg6 48. Kg3 Ke6 49. Ng2 Kd6 50. Nf4 Bf7 51. Nd3 Be6 52. Nc5 Bc8 {with a draw.}) ({In view of Black's subsequent problems, other ways of defending should have been sought – for example,} 46... Ke6 $1 {. This was deemed to be the most accurate reply:} 47. Z0 ({, now} 47. hxg5 fxg5 48. f4 {fails to} g4 {with a draw.}) ({. But there are also other tries:} 47. g4 hxg4 48. hxg5 ({to Dvoretsky's recommendation} 48. Nxg4 gxh4 49. Kg2 { there is the satisfactory reply} Bf5 50. Ne3 Bg6 51. Kh3 Bh5 52. f4 Be2 53. Kxh4 Bf3) 48... gxf3 $1 49. gxf6 (49. Kxf3 fxg5 50. Kg4 Kf6 51. Nxd5+ Kg6 { with a draw – Nunn}) 49... Be4 $1 50. Ng4 Kf7 51. Kg3 Ke6 52. Ne5 ({or} 52. Kf4 Kf7 53. Ke5 Bg6 $1 54. Kxd5 Bh5 55. Nf2 Kxf6 {with a draw (Dvoretsky)}) 52... Kxf6 {and Black loses his a6-pawn, but gains a draw with the help of zugzwang.}) (47. Kg2 Bd3 48. g4 hxg4 ({the waiting move} 48... Bg6 {will also do}) 49. fxg4 Be4+ 50. Kg3 Kf7 $1 ({but not} 50... gxh4+ $2 51. Kxh4) 51. h5 Ke6 $1 52. Nd1 Bh7 53. Nc3 Bc2 54. Kf3 Kd6 55. Ke3 Ke6 56. Kd2 Bh7 {, when the white king cannot break through, and on its own the knight cannot win the game: } 57. a4 bxa4 58. Nxa4 f5 {etc. Thus 46...Ke6 would have given Black a simpler draw.})) 47. Ng2 $3 {(14) This unexpected and brilliant move, which we overlooked in our home analysis, left me in a state of shock and my resistance almost collapsed. I intuitively sensed that now Black's position was hopeless.. .} hxg3+ {(14)} 48. Kxg3 {White quickly picks up the h5-pawn and breaks through with his king.} Ke6 ({As was shown by Marin, it was no better to play} 48... Bg6 49. Nf4 Bf7 50. Kh4 Ke7 51. Nxh5 Ke6 (51... Bxh5 52. Kxh5 {and wins}) 52. Ng7+ Ke7 53. Kg4 {, when after} Kd6 ({while} 53... Bg6 54. Nh5 Bc2 55. Nf4 Kd6 56. Kh5 Bd1 57. Kg6 Ke7 $1 {leads to a position from the game (where} 58. Nh5 $1 {etc. is decisive)}) 54. Nh5 {Black loses his f-pawn and with it the game.}) 49. Nf4+ Kf5 50. Nxh5 Ke6 {(forced, in view of the threat of Ng7-e8-c7) } 51. Nf4+ Kd6 52. Kg4 Bc2 53. Kh5 Bd1 54. Kg6 Ke7 $1 ({Of course, not} 54... Bxf3 $2 55. Kxf6 {, winning the d5-pawn and the game.}) 55. Nxd5+ $2 {A blunder: the d5-pawn was merely hindering Black!} (55. Nh5 $1 {, which the commentators also overlooked at the time, is far stronger.} Z0 ({. Now} 55... Bc2+ {is insufficient:} 56. Kg7 Ke6 57. Nxf6 Bb1 (57... Kf5 58. Nxd5 {– Dvoretsky}) 58. Ng4 Kf5 59. Kf7 Kf4 60. Ke6 Kxf3 61. Nf6 Ke3 62. Kxd5 {and wins (Marin).}) ({. Black must play} 55... Bxf3 56. Nxf6 Be4+ $1 (56... Ke6 { is worse:} 57. Ne8 Kd7 58. Ng7 Ke7 59. Kf5 Kd6 60. Kf6 {and wins}) 57. Kg5 Bd3 $1 (57... Bg2 58. Kf5 {, driving back the king and winning the d5-pawn}) { , but a joint analysis by Marin and Dvoretsky (2005) demonstrates a pretty win for White after} 58. Ng4 $1 Bf1 $1 59. Ne5 Bh3 60. Kg6 $1 Ke6 61. Nc6 Kd6 62. Na5 Ke7 63. Nb3 Bd7 64. Nc5 Bc8 65. Kg7 $1 Bf5 66. Nxa6 Bd3 67. Nb8 Bc2 68. Nc6+ $1 Ke6 ({and if Black defends against the raid along the 8th rank –} 68... Kd7 69. Ne5+ Ke7 {, White converts his extra pawn by} 70. Ng4 {and Ne3, and then 'he cannot be prevented from bringing back his king and, after playing his knight to c3 at a convenient moment, advancing a3-a4' (Dvoretsky)}) 69. Kf8 $1 Bg6 70. Na7 Bd3 71. Ke8 Be2 72. Nc6 $1 Kd6 73. Ne7 $1 Ke6 74. Kd8 Kd6 (74... Bf1 75. Nc6) 75. Nf5+ Ke6 76. Ne3 Kd6 77. Kc8 Kc6 78. Kb8 {, when the king breaks through to the b5-pawn, after which a3-a4 proves decisive. But this was established only twenty years after the match, under the watchful eye of a computer...})) 55... Ke6 ({Immediately after the game I regretted that I had not played} 55... Kd6 $5 {. Soviet commentators diplomatically remarked that after} 56. Nxf6 ({and} 56. Nc3 Bxf3 57. Kxf6 Bg2 {(c6) would have reduced the game to a drawn position discovered by the analysts}) 56... Bxf3 {'the win is still not so simple', which translated into modern language means 'the position is a dead draw':} 57. Kf5 Bg2 58. Kf4 Bh3 59. Ke3 Bf5 60. Ne4+ Kd5 61. Nc5 Bc8 62. Kd3 Bf5+ {and ...Bc8.}) 56. Nc7+ Kd7 $2 {Submissively giving up a second pawn. Alas, mentally I was already reconciled to defeat and I did not suspect how difficult things were for White!} (56... Kd6 {was far stronger, with the idea of} 57. Nxa6 ({or} 57. Ne8+ Ke7 ({but not} 57... Kd5 $2 58. f4 $1 ) 58. Nxf6 Bxf3 59. Kf5 Kd6 60. Kf4 Bg2 61. Ke3 Bh3 {– with the same draw as in the previous note}) 57... Bxf3 58. Kxf6 Kd5 {(Averbakh)} 59. Nc7+ Kxd4 60. Nxb5+ Kc4 {with a draw. But the most surprising thing is that, as a deep analysis shows, even though two pawns down Black is not lost!}) 57. Nxa6 Bxf3 58. Kxf6 Kd6 59. Kf5 Kd5 60. Kf4 Bh1 61. Ke3 Kc4 62. Nc5 $1 {(16)} Bc6 (62... Bg2 {(Geller)} 63. Nd3 Bh1 {(b7) was also suitable.}) 63. Nd3 Bg2 ({'There was the interesting idea} 63... Be8 64. Ne5+ Kd5 {with the hope of holding out two pawns down.' (Averbakh)}) 64. Ne5+ {(13)} Kc3 (64... Kd5 $5 {(Averbakh) came into consideration, for example:} 65. Nd7 ({or} 65. Ng4 Bh3 66. Nh6 Be6) 65... Bh1 66. Kd3 Be4+ 67. Kc3 Bf3 68. a4 bxa4 69. Nb6+ Kc6 70. Nxa4 Bh5 {(g4), and the two extra pawns do not bring success (as shown by the Tablebase).}) 65. Ng6 Kc4 66. Ne7 Bb7 $2 {(17) Only this is the decisive mistake: now Black loses because of zugzwang.} ({During the game many observers suggested that} 66... Bh1 $1 {would have been more tenacious, and here a win has still not yet been found:} 67. Z0 (67. Nf5 Kd5 $1 68. Ng3 (68. Kf4 Be4 $1 {– Marin}) 68... Bg2 69. Kd3 $5 {– to this move by Dvoretsky there is Müller's reply} Bf3 $5 70. Nf1 Be4+ 71. Kc3 Bf3 72. Ne3+ Ke4 73. Nc4 $1 Kd5 $1 74. Nb2 Kc6 75. a4 bxa4 76. Nxa4 Bh5 {(g4), with the same draw as in the note to Black's 64th move}) (67. Nc8 Kd5 68. Kd3 Be4+ 69. Kc3 Kc6 {(Timman), and my attempt} 70. Ne7+ Kd7 71. Ng8 Ke6 72. Nh6 Bf3 73. Kd3 Bh1 74. Ng4 {was parried by Dvoretsky with} Bf3 $1 ({with the idea of} 74... Bg2 $2 75. Nf2 $1 Bf3 ({or} 75... Bf1+ 76. Ke3 { and Nd3-f4, winning}) 76. Ne4) 75. Ne3 ({or} 75. Nf2 Kd5) 75... Kd6 {.}) (67. d5 $2 Bxd5 {with a draw.})) 67. Nf5 Bg2 $6 ({'And again} 67... Kd5 {would have set White more problems' (Averbakh). After} 68. Kd3 Ke6 $1 {to succeed White needs to transfer his knight to c3, and this aim is achieved only by the paradoxical move} 69. Ng7+ $3 {, found in 2005 by Müller (obviously at the board it would have been very hard, if at all possible, to find such a move), for example:} Kd6 ({or} 69... Kd7 70. Nh5 Bg2 (70... Kd6 71. Nf6 {and Ne4-c3}) 71. Nf4 $1 Bf1+ 72. Ke4 Kd6 73. Ke3 $1 Bc4 74. Ne2 Ke6 75. Nc3 {and wins}) 70. Ne8+ $1 Kd7 (70... Ke7 71. Nc7 Bc6 72. d5) 71. Nf6+ Ke6 72. Ne4 Bc6 73. Nc3 {.} ) 68. Nd6+ Kb3 69. Nxb5 Ka4 70. Nd6 $1 ({After} 70. Nd6 Kxa3 71. b5 {the bishop has to be given up for this pawn. Times: 3.25–3.55.}) 1-0