問題 937824: 黒 が 終盤で引き分けとするために

R. Lahaye (2411) - GM J. Van der Wiel (2394)
11th dMP Batavia Blitz Amsterdam NED, 2019.03.02
  1. 1.c3
  2. Nf6
  3. 2.g3
  4. d5
  5. 3.Bg2
  6. c6
  7. 4.d3
  8. Bg4
  9. 5.Nd2
  10. Nbd7
  11. 6.h3
  12. Bh5
  13. 7.g4
  14. Bg6
  15. 8.f4
  16. e6
  17. 9.Ndf3
  18. Bd6
  19. 10.d4
  20. Ne4
  21. 11.e3
  22. h5
  23. 12.g5
  24. Ng3
  25. 13.Rh2
  26. h4
  27. 14.Ne2
  28. Nf5
  29. 15.Rh1
  30. f6
  31. 16.Rf1
  32. Qc7
  33. 17.b3
  34. e5
  35. 18.gxf6
  36. gxf6
  37. 19.fxe5
  38. fxe5
  39. 20.Ng5
  40. Nf8
  41. 21.e4
  42. Ne7
  43. 22.Rxf8+
  44. Rxf8
  45. 23.Ne6
  46. Qd7
  47. 24.Nxf8
  48. Kxf8
  49. 25.Bg5
  50. Bxe4
  51. 26.Bxe4
  52. Qxh3
  53. 27.dxe5
  54. Bxe5
  55. 28.Qd3
  56. Qg4
  57. 29.Qf3+
  58. Qxf3
  59. 30.Bxf3
  60. h3
  61. 31.Kf2
  62. h2
  63. 32.Bf4
  64. Ng6
  65. 33.Bxe5
  66. Nxe5
  67. 34.Rh1
  68. Ke7
  69. 35.Rxh2
  70. Rf8
  71. 36.Rh3
  72. Kd6
  73. 37.Ke3
  74. a5
  75. 38.Nd4
  76. a4
  77. 39.b4
  78. Nc4+
  79. 40.Kd3
  80. Re8
  81. 41.Rh6+
  82. Kc7
  83. 42.Re6
  84. Rg8
  85. 43.Re7+
  86. Kb6
  87. 44.Re2
  88. Rg1
  89. 45.Ne6
  90. Rd1+
  91. 46.Kc2
  92. Ra1
  93. 47.Kd3
  94. Rd1+
  95. 48.Kc2
  96. Ra1
  97. 49.Nd4
  98. Rxa2+
  99. 50.Kb1
  100. Ra3
  101. 51.Rc2
  102. c5
  103. 52.Bxd5
  104. Ne3
  105. 53.bxc5+
  106. Kxc5
  107. 54.Bxb7
  108. Nxc2
  109. 55.Kxc2
  110. Ra2+
  111. 56.Kd3
  112. Rh2
  113. 57.Bf3
  114. a3
  115. 58.Nb3+
  116. Kb5
  117. 59.Be2
  118. Rxe2
  119. 60.Kxe2
    1. 解決策:60.Kxe2
    2. Kc4
    3. 61.Na1
      1. 61.Nd2+
      2. Kxc3
      3. 62.Nb1+ with a drawn endgame, for example:
      4. Kb3
      5. 63.Nxa3
      1. 61.Nc1
      2. Kxc3
      3. 62.Ke3 with a drawn endgame, for example:
      4. Kb2
      5. 63.Kd2
      6. a2
      7. 64.Nxa2
    4. 61...Kxc3
    5. 62.Kd1 with a drawn endgame, for example:
      1. 62.Ke3 with a drawn endgame, for example:
      2. Kb2
      3. 63.Kd2
      4. Ka2
      5. 64.Kc2
      6. Kxa1
      7. 65.Kb3
    6. 62...Kb2
    7. 63.Nc2
    8. Ka2
    9. 64.Kd2
    10. Kb2
    11. 65.Nxa3
  120. 60...Kc4
  121. 61.Na1
  122. Kxc3
  123. 62.Kd1
  124. Kb2
  125. 63.Nc2
  126. a2
  127. 64.Kd2
  128. a1=Q
  129. 65.Nxa1
  130. Kxa1
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