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問題 850230: 黒 が 終盤を勝つとするために

GM Erik Blomqvist (2510) - GM Aram Hakobyan (2620)
Airthings Masters Play-In chess.com INT (8), 2023.02.03
  2. 1.e4
  3. e5
  4. 2.Nf3
  5. Nc6
  6. 3.Bb5
  7. Nf6
  8. 4.O-O
  9. Nxe4
  10. 5.Re1
  11. Nd6
  12. 6.a4
  13. Be7
  14. 7.Nc3
  15. a6
  16. 8.Bf1
  17. e4
  18. 9.Nxe4
  19. Nxe4
  20. 10.Rxe4
  21. d5
  22. 11.Re1
  23. Bg4
  24. 12.h3
  25. Bh5
  26. 13.Be2
  27. O-O
  28. 14.d4
  29. Re8
  30. 15.c3
  31. Bd6
  32. 16.Bg5
  33. Qd7
  34. 17.Qc2
  35. h6
  36. 18.Be3
  37. Bg6
  38. 19.Bd3
  39. Be4
  40. 20.Nd2
  41. Bxd3
  42. 21.Qxd3
  43. Re6
  44. 22.b4
  45. Rae8
  46. 23.Nf3
  47. Ne7
  48. 24.b5
  49. axb5
  50. 25.axb5
  51. Nc8
  52. 26.c4
  53. dxc4
  54. 27.Qxc4
  55. Nb6
  56. 28.Qb3
  57. Nd5
  58. 29.Bd2
  59. Rxe1+
  60. 30.Rxe1
  61. Rxe1+
  62. 31.Bxe1
  63. Qf5
  64. 32.Bd2
  65. Qe4
  66. 33.Kf1
  67. g5
  68. 34.Qc4
  69. Kg7
  70. 35.Ne1
  71. Bf4
  72. 36.Nf3
  73. Bd6
  74. 37.Ne1
  75. Ne7
  76. 38.Qd3
  77. Qxd3+
  78. 39.Nxd3
  79. Kf6
  80. 40.Ke2
  81. Ke6
  82. 41.Nb2
  83. Nf5
  84. 42.Kd3
  85. Nxd4
  86. 43.b6
  87. Nc6
  88. 44.bxc7
  89. Ne5+
  90. 45.Kc3
  91. Bxc7
  92. 46.Kb4
  93. Bb6
  94. 47.Be1
  95. Bd4
  96. 48.Bc3
  97. Nc6+
  98. 49.Kc4
  99. b5+
  100. 50.Kb3
  101. Bxf2
  102. 51.Nd3
  103. Be3
  104. 52.g4
  105. f5
  106. 53.Bg7
  107. f4
  108. 54.Bxh6
  109. f3
  110. 55.h4
  111. Ne5
  112. 56.Kc2
  113. Nxg4
  114. 57.Bxg5
  115. Bxg5
  116. 58.hxg5
  117. f2
  118. 59.Nxf2
  119. Nxf2
  120. 60.Kc3
  121. Ne4+
  122. 61.Kb4
  123. Nd6
  124. 62.Kc5
  125. Kf7
  126. 63.Kd5
  127. Kg6
  128. 64.Kxd6
    1. 解決策:64.Kxd6
    2. b4
    3. 65.Ke5
      1. 65.Ke6
      2. b3
      3. 66.Ke5
      4. b2
      5. 67.Kd4
      6. b1=Q
      1. 65.Kd5
      2. b3
      3. 66.Kd4
      4. b2
      5. 67.Kd3
      6. b1=Q+
      1. 65.Kc5
      2. b3
      3. 66.Kb4
      4. b2
      5. 67.Kc4
      6. b1=Q
    5. 65...b3
    6. 66.Kf4 with a winning endgame, for example:
      1. 66.Ke4
      2. b2
      3. 67.Kd4
      4. b1=Q
      1. 66.Kd4
      2. b2
      3. 67.Kd3
      4. b1=Q+
    8. 66...b2
    9. 67.Ke3
    10. Kxg5
    11. 68.Kd3
    12. b1=Q+
  130. 64...b4
0-1
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