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問題 794658: 黒 が 終盤で引き分けとするために

GM Alexandr Fier (2564) - IM Semetey Tologontegin (2377)
Titled Tuesday 28th Sept chess.com INT (6), 2021.09.28
  2. 1.d4
  3. Nf6
  4. 2.Bg5
  5. d5
  6. 3.Bxf6
  7. gxf6
  8. 4.c4
  9. c6
  10. 5.cxd5
  11. cxd5
  12. 6.Nc3
  13. Nc6
  14. 7.e3
  15. f5
  16. 8.Bd3
  17. e6
  18. 9.Nge2
  19. Bd6
  20. 10.g3
  21. a6
  22. 11.Nf4
  23. Bxf4
  24. 12.gxf4
  25. Bd7
  26. 13.Rc1
  27. Qh4
  28. 14.Qb3
  29. b5
  30. 15.Nb1
  31. Rg8
  32. 16.Nd2
  33. Rg2
  34. 17.Rf1
  35. Qxh2
  36. 18.Qa3
  37. Qh4
  38. 19.Qd6
  39. Rc8
  40. 20.a4
  41. Qe7
  42. 21.Qc5
  43. Nb4
  44. 22.Qxe7+
  45. Kxe7
  46. 23.Rxc8
  47. Nxd3+
  48. 24.Ke2
  49. Nxf4+
  50. 25.exf4
  51. Bxc8
  52. 26.a5
  53. Bd7
  54. 27.Rh1
  55. Rg7
  56. 28.b4
  57. f6
  58. 29.Nb3
  59. Kd6
  60. 30.Nc5
  61. Bc8
  62. 31.Rh6
  63. Ke7
  64. 32.Ke3
  65. Kf7
  66. 33.Kf3
  67. Ke7
  68. 34.Ke3
  69. Kf7
  70. 35.Rh1
  71. Ke7
  72. 36.Kf3
  73. Kd6
  74. 37.Rh2
  75. Ke7
  76. 38.Rh1
  77. Kd6
  78. 39.Rc1
  79. Rg8
  80. 40.Nd3
  81. Bd7
  82. 41.Rh1
  83. Rg7
  84. 42.Rh6
  85. Ke7
  86. 43.Nc1
  87. Be8
  88. 44.Nd3
  89. Bd7
  90. 45.Ke3
  91. Bc8
  92. 46.Nc1
  93. Rf7
  94. 47.Ne2
  95. Kf8
  96. 48.Rh1
  97. Kg7
  98. 49.Rc1
  99. Bb7
  100. 50.Ng3
  101. Kg6
  102. 51.Rg1
  103. h5
  104. 52.Ne4+
  105. Kh6
  106. 53.Nd6
  107. Rd7
  108. 54.Ne8
  109. Rf7
  110. 55.Rg8
  111. Bc6
  112. 56.Nd6
  113. Rg7
  114. 57.Rh8+
  115. Rh7
  116. 58.Rc8
  117. Bd7
  118. 59.Rc7
  119. h4
  120. 60.Kf3
  121. Kg6
  122. 61.Kg2
  123. e5
  124. 62.fxe5
  125. fxe5
  126. 63.dxe5
  127. f4
  128. 64.Kh2
  129. f3
  130. 65.Nb7
  131. d4
  132. 66.Nc5
  133. Bf5
  134. 67.Rc6+
  135. Kg5
  136. 68.Rxa6
  137. d3
  138. 69.Rd6
  139. Kf4
  140. 70.Nxd3+
  141. Bxd3
  142. 71.Rxd3
  143. Kxe5
  144. 72.Ra3
  145. Ra7
  146. 73.Kh3
  147. Kd4
  148. 74.Kxh4
  149. Kc4
  150. 75.Rxf3
  151. Kxb4
  152. 76.Kg5
  153. Rxa5
  154. 77.Rf8
  155. Kb3
  156. 78.Rb8
  157. b4+
  158. 79.Kg6
  159. Ka3
  160. 80.f4
  161. b3
  162. 81.f5
  163. b2
  164. 82.f6
  165. Ra6
  166. 83.Kg7
  167. Rxf6
  168. 84.Kxf6
    1. 解決策:84.Kxf6
    2. Ka2
    3. 85.Ra8+
      1. 85.Rxb2+
      2. Kxb2
      1. 85.Ke5 with a drawn endgame, for example:
      2. Kb1
      3. 86.Kd4
      4. Kc2
      5. 87.Rc8+
      6. Kb3
      7. 88.Rb8+
      8. Kc2
      9. 89.Kc4
      10. Kc1
      11. 90.Rg8
      12. b1=Q
      13. 91.Rg1+
    5. 85...Kb3
      1. 85...Kb1
      2. 86.Ke6
        1. 86.Kf5
        2. Kc1
        3. 87.Rc8+ with a drawn endgame, for example:
        4. Kb1
        5. 88.Ke6
        6. Ka1
        7. 89.Ra8+
        8. Kb1
        9. 90.Kd6
        10. Kc1
        11. 91.Rb8
        12. b1=R
        13. 92.Rxb1+
        14. Kxb1
        1. 86.Ke5
        2. Kc1
        3. 87.Rf8 with a drawn endgame, for example:
        4. b1=Q
        5. 88.Rf1+
      4. 86...Kc2
        1. 86...Kc1
        2. 87.Rc8+ with a drawn endgame, for example:
          1. 87.Rg8 with a drawn endgame, for example:
          2. Kb1
          3. 88.Rg2
          4. Kc1
          5. 89.Rg1+
          6. Kc2
          7. 90.Kd6
          8. b1=Q
          9. 91.Rxb1
          10. Kxb1
          1. 87.Rb8 with a drawn endgame, for example:
          2. b1=Q
          3. 88.Rxb1+
          4. Kxb1
        4. 87...Kb1
        5. 88.Rc6
        6. Ka2
        7. 89.Ra6+
        8. Kb1
        9. 90.Kd6
        10. Kc1
        11. 91.Rc6+
        12. Kb1
        13. 92.Rb6
        14. Kc1
        15. 93.Kc6
        16. b1=Q
        17. 94.Rxb1+
        18. Kxb1
      6. 87.Rc8+ with a drawn endgame, for example:
        1. 87.Rb8
        2. b1=Q
        3. 88.Rxb1
        4. Kxb1
      8. 87...Kb1
      9. 88.Rc6
      10. Ka2
      11. 89.Ra6+
      12. Kb1
      13. 90.Kd6
      14. Kc1
      15. 91.Rc6+
      16. Kb1
      17. 92.Rb6
      18. Kc1
      19. 93.Kc6
      20. b1=Q
      21. 94.Rxb1+
      22. Kxb1
    7. 86.Rb8+ with a drawn endgame, for example:
    8. Ka2
    9. 87.Ke5
    10. Kb1
    11. 88.Kd4
    12. Kc2
    13. 89.Rc8+
    14. Kb3
    15. 90.Rb8+
    16. Kc2
    17. 91.Kc4
    18. Kc1
    19. 92.Rg8
    20. b1=Q
    21. 93.Rg1+
  170. 84...Ka2
  171. 85.Ra8+
  172. Kb3
  173. 86.Rb8+
  174. Ka2
  175. 87.Ke5
  176. b1=Q
  177. 88.Ra8+
  178. Kb2
  179. 89.Rb8+
  180. Kc1
  181. 90.Rxb1+
  182. Kxb1
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