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問題 990714: 白 が 終盤を勝つとするために

FM Samuel-Timotei Ghimpu (2355) - WIM Viktoriya Tarasova (2226)
Titled Tuesday 1st June chess.com INT (1), 2021.06.01
  2. 1.d4
  3. Nf6
  4. 2.c4
  5. e6
  6. 3.Nc3
  7. Bb4
  8. 4.Qc2
  9. d5
  10. 5.cxd5
  11. exd5
  12. 6.Bf4
  13. O-O
  14. 7.e3
  15. c6
  16. 8.Nf3
  17. Bg4
  18. 9.Bd3
  19. Nbd7
  20. 10.Ne5
  21. Bh5
  22. 11.Nxd7
  23. Qxd7
  24. 12.Be5
  25. Bg6
  26. 13.Bxf6
  27. gxf6
  28. 14.O-O-O
  29. a5
  30. 15.Ne2
  31. a4
  32. 16.a3
  33. Bd6
  34. 17.h4
  35. c5
  36. 18.dxc5
  37. Rfc8
  38. 19.Kb1
  39. Rxc5
  40. 20.Qd2
  41. Rac8
  42. 21.h5
  43. Bxd3+
  44. 22.Qxd3
  45. Qb5
  46. 23.Qxb5
  47. Rxb5
  48. 24.Rd3
  49. Be5
  50. 25.Nd4
  51. Rbc5
  52. 26.Rhd1
  53. Kf8
  54. 27.Nf3
  55. Rc2
  56. 28.R3d2
  57. Rxd2
  58. 29.Rxd2
  59. Rc5
  60. 30.Ne1
  61. Ke7
  62. 31.f4
  63. Bb8
  64. 32.Nd3
  65. Rb5
  66. 33.Nb4
  67. Ke6
  68. 34.Nc2
  69. Ba7
  70. 35.Kc1
  71. Kf5
  72. 36.Kd1
  73. Ke4
  74. 37.Nb4
  75. d4
  76. 38.exd4
  77. Bxd4
  78. 39.Re2+
  79. Kf5
  80. 40.Kc2
  81. Ba7
  82. 41.g3
  83. Kg4
  84. 42.Re7
  85. Rxh5
  86. 43.Rxf7
  87. Bc5
  88. 44.Nd3
  89. Bd4
  90. 45.Rd7
  91. Kxg3
  92. 46.Rxd4
  93. Rh2+
  94. 47.Kc3
  95. Kf3
  96. 48.Rxa4
  97. Ke3
  98. 49.f5
  99. h5
  100. 50.Nf4
  101. h4
  102. 51.Rb4
  103. Kf3
  104. 52.a4
  105. Rh1
  106. 53.Kb3
  107. Ra1
  108. 54.Rb5
  109. Kg3
  110. 55.Rb4
  111. h3
  112. 56.Nxh3
  113. Kxh3
  114. 57.Rxb7
  115. Kg4
  116. 58.Kb4
  117. Kxf5
  118. 59.a5
  119. Ke4
  120. 60.Kb5
  121. f5
  122. 61.Re7+
  123. Kf3
  124. 62.a6
  125. f4
  126. 63.a7
  127. Kg2
  128. 64.b4
  129. f3
  130. 65.Kb6
  131. f2
  132. 66.Rf7
  133. f1=Q
  134. 67.Rxf1
  135. Kxf1
  136. 68.b5
  137. Ke2
    1. 解決策:68...Ke2
    2. 69.Kb7
    3. Ra5
      1. 69...Rf1 with a winning endgame, for example:
      2. 70.a8=Q
      1. 69...Rg1 with a winning endgame, for example:
      2. 70.a8=Q
      1. 69...Kd3 with a winning endgame, for example:
      2. 70.a8=Q
      1. 69...Re1 with a winning endgame, for example:
      2. 70.a8=Q
    5. 70.b6
      1. 70.a8=Q
      2. Rxa8
      3. 71.Kxa8
      4. Ke3 with a winning endgame, for example:
        1. 71...Kd3 with a winning endgame, for example:
        2. 72.b6
        3. Kc4
        4. 73.b7
        5. Kb5
        6. 74.b8=Q+
      6. 72.b6
      7. Kd4
      8. 73.b7
      9. Kd5
      10. 74.b8=Q
      1. 70.Kb6
      2. Ra1
    7. 70...Kd3 with a winning endgame, for example:
      1. 70...Ra1 with a winning endgame, for example:
      2. 71.a8=Q
      1. 70...Rf5 with a winning endgame, for example:
      2. 71.a8=Q
    9. 71.a8=Q
  139. 69.Kb7
  140. Kd3
  141. 70.b6
  142. Kc4
  143. 71.a8=Q
  144. Rxa8
  145. 72.Kxa8
  146. Kc5
  147. 73.b7
  148. Kd6
  149. 74.b8=Q+
  150. Kc5
  151. 75.Qb2
  152. Kc4
  153. 76.Kb7
  154. Kd3
  155. 77.Kc6
  156. Ke3
  157. 78.Kd5
  158. Kf3
  159. 79.Ke5
  160. Kg3
  161. 80.Ke4
  162. Kg4
  163. 81.Qf2
  164. Kg5
  165. 82.Qf7
  166. Kg4
  167. 83.Qg6+
  168. Kh3
  169. 84.Kf3
  170. Kh2
  171. 85.Qg2#
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