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問題 675678: 黒 が 終盤で引き分けとするために

IM Nikolas Wachinger (2437) - Bennet Hagner (2224)
4th Bamberg Open 2022 Bamberg GER, 2022.07.31
  2. 1.e4
  3. e5
  4. 2.Nf3
  5. Nc6
  6. 3.Bb5
  7. a6
  8. 4.Ba4
  9. Nf6
  10. 5.O-O
  11. Be7
  12. 6.Re1
  13. b5
  14. 7.Bb3
  15. d6
  16. 8.c3
  17. O-O
  18. 9.h3
  19. Bb7
  20. 10.d4
  21. Re8
  22. 11.Nbd2
  23. Bf8
  24. 12.a3
  25. h6
  26. 13.Bc2
  27. Nb8
  28. 14.b3
  29. Nbd7
  30. 15.Bb2
  31. c6
  32. 16.Bd3
  33. Rb8
  34. 17.Qc2
  35. Ba8
  36. 18.a4
  37. Qc7
  38. 19.c4
  39. Qb7
  40. 20.axb5
  41. axb5
  42. 21.cxb5
  43. cxb5
  44. 22.Ra5
  45. Rbc8
  46. 23.Qb1
  47. exd4
  48. 24.Rxb5
  49. Qc7
  50. 25.Bxd4
  51. Bc6
  52. 26.Rf5
  53. Re7
  54. 27.Nf1
  55. Rce8
  56. 28.Ng3
  57. Qb7
  58. 29.Bxf6
  59. Nxf6
  60. 30.Rxf6
  61. gxf6
  62. 31.Nd4
  63. d5
  64. 32.Nh5
  65. dxe4
  66. 33.Bc4
  67. Kh8
  68. 34.Qb2
  69. Re5
  70. 35.Nxf6
  71. Bg7
  72. 36.Nxc6
  73. Qxc6
  74. 37.Nxe8
  75. Qxe8
  76. 38.Qd2
  77. f5
  78. 39.Qf4
  79. Qg6
  80. 40.Rd1
  81. Qg5
  82. 41.Qd2
  83. Re8
  84. 42.Qxg5
  85. hxg5
  86. 43.Rd5
  87. Re5
  88. 44.Rxe5
  89. Bxe5
  90. 45.Be6
  91. f4
  92. 46.Kf1
  93. e3
  94. 47.fxe3
  95. fxe3
  96. 48.Ke2
  97. Bd4
  98. 49.Kd3
  99. Kg7
  100. 50.Bg4
  101. Bb6
  102. 51.Ke4
  103. Kf6
  104. 52.b4
  105. Ba7
  106. 53.b5
  107. Bb6
  108. 54.Kd5
  109. Bc7
  110. 55.Kd4
  111. Bb6+
  112. 56.Ke4
  113. Ba7
  114. 57.Kd5
  115. Bb6
  116. 58.Kc6
  117. Bd4
  118. 59.b6
  119. Ke5
  120. 60.b7
  121. Ba7
  122. 61.Kc7
  123. Kf4
  124. 62.b8=Q
  125. Bxb8+
  126. 63.Kxb8
  127. Kg3
  128. 64.Bf3
    1. 解決策:64.Bf3
    2. Kf2
    3. 65.Kc7
      1. 65.Kc8
      2. e2
      3. 66.Bxe2
      4. Kxe2
      5. 67.Kd7
      6. Kf2
      7. 68.Ke7
      8. Kxg2
      1. 65.Ka8
      2. Kf1
      3. 66.Kb8
      4. e2
      5. 67.Bxe2+
      6. Kxe2
      7. 68.g4 with a drawn endgame, for example:
      8. Kf3
      9. 69.h4
      10. Kxg4
      11. 70.hxg5
      12. Kxg5
    5. 65...e2
    6. 66.Bxe2
    7. Kxe2
    8. 67.Kd7
      1. 67.Kd6
      2. Kf2
      3. 68.Ke6
      4. Kxg2
    10. 67...Kf2
    11. 68.Ke7
      1. 68.Ke6
      2. Kxg2
    13. 68...Kxg2
      1. 68...Kg3
      2. 69.Kf6
        1. 69.Kf7 with a drawn endgame, for example:
        2. Kxg2
        3. 70.Kf6
      4. 69...Kxg2
        1. 69...g4
        2. 70.hxg4
          1. 70.Ke6 with a drawn endgame, for example:
          2. gxh3
          3. 71.gxh3
          4. Kxh3
          1. 70.h4
          2. Kxh4
        4. 70...Kxg4
        5. 71.Kg6 with a drawn endgame, for example:
        6. Kh4
        7. 72.Kf5
        8. Kg3
        9. 73.Ke6
        10. Kxg2
      6. 70.Kxg5
      7. Kxh3
  130. 64...Kf2
  131. 65.Kc7
  132. e2
  133. 66.Bxe2
  134. Kxe2
  135. 67.Kd6
  136. Kf2
  137. 68.Ke5
  138. Kxg2
  139. 69.Kf5
  140. Kxh3
  141. 70.Kxg5
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