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問題 859102: 白 が 終盤で引き分けとするために

FM L. R Srihari (2414) - GM N. R Visakh (2516)
Titled Tuesday 22nd Sept chess.com INT (6), 2020.09.22
  2. 1.d4
  3. Nf6
  4. 2.Bg5
  5. g6
  6. 3.Bxf6
  7. exf6
  8. 4.e3
  9. d5
  10. 5.g3
  11. Bd6
  12. 6.Bg2
  13. c6
  14. 7.Ne2
  15. O-O
  16. 8.O-O
  17. h5
  18. 9.h4
  19. Bg4
  20. 10.Nd2
  21. Nd7
  22. 11.c4
  23. dxc4
  24. 12.Nxc4
  25. Bc7
  26. 13.Qc2
  27. Nb6
  28. 14.Na5
  29. Rb8
  30. 15.Nb3
  31. Kg7
  32. 16.Nc3
  33. Bf5
  34. 17.Qe2
  35. Re8
  36. 18.Rfe1
  37. Be6
  38. 19.Nc5
  39. Bc8
  40. 20.Rac1
  41. Nd7
  42. 21.Nb3
  43. f5
  44. 22.d5
  45. cxd5
  46. 23.Nxd5
  47. Be5
  48. 24.Red1
  49. Re6
  50. 25.Nd4
  51. Ra6
  52. 26.a3
  53. Nf6
  54. 27.Nf3
  55. Bd6
  56. 28.Nc3
  57. Be6
  58. 29.Nd4
  59. Bd7
  60. 30.Ndb5
  61. Qe7
  62. 31.Nxd6
  63. Rxd6
  64. 32.Rxd6
  65. Qxd6
  66. 33.Rd1
  67. Qe7
  68. 34.Qd2
  69. Bc6
  70. 35.Qd4
  71. Bxg2
  72. 36.Kxg2
  73. b6
  74. 37.Kg1
  75. Re8
  76. 38.Nd5
  77. Qe5
  78. 39.Nxf6
  79. Qxf6
  80. 40.Qxf6+
  81. Kxf6
  82. 41.Rd6+
  83. Re6
  84. 42.Rd7
  85. a5
  86. 43.Kf1
  87. Rc6
  88. 44.Rd2
  89. Ke5
  90. 45.Ke2
  91. Rc1
  92. 46.Kf3
  93. Rb1
  94. 47.Rc2
  95. Kd6
  96. 48.Ke2
  97. f6
  98. 49.Kd2
  99. Kd5
  100. 50.Ke2
  101. b5
  102. 51.Rd2+
  103. Kc4
  104. 52.Kf3
  105. Kb3
  106. 53.Rd5
  107. Ka4
  108. 54.Rd4+
  109. b4
  110. 55.axb4
  111. axb4
  112. 56.Rd6
  113. Rxb2
  114. 57.Rxf6
  115. b3
  116. 58.Rxg6
  117. Rc2
  118. 59.Rb6
  119. Rc4
  120. 60.Ra6+
  121. Kb5
  122. 61.Ra1
  123. b2
  124. 62.Rb1
  125. Rc2
  126. 63.Kf4
  127. Rxf2+
  128. 64.Kg5
  129. Kc4
  130. 65.Kxh5
  131. Kc3
  132. 66.Kg5
  133. Rf3
  134. 67.h5
  135. Kc2
  136. 68.Rxb2+
  137. Kxb2
  138. 69.h6
  139. Rxg3+
  140. 70.Kxf5
  141. Rxe3
  142. 71.h7
  143. Rh3
    1. 解決策:71...Rh3
    2. 72.Kg6
    3. Kb3
      1. 72...Kc3
      2. 73.Kg7
      3. Rxh7+
      4. 74.Kxh7
    5. 73.Kg7
    6. Rg3+ with a drawn endgame, for example:
      1. 73...Kc3 with a drawn endgame, for example:
      2. 74.h8=Q
      3. Rxh8
      4. 75.Kxh8
      1. 73...Rxh7+
      2. 74.Kxh7
    8. 74.Kh8
    9. Rd3
    10. 75.Kg8
    11. Rd8+
    12. 76.Kg7
    13. Ra8
    14. 77.h8=Q
    15. Rxh8
    16. 78.Kxh8
  145. 72.Kg6
  146. Kc3
  147. 73.Kg7
  148. Rxh7+
  149. 74.Kxh7
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