問題 321711: 黒 が 終盤を勝つとするために

CM David Okike (2177) - FM Maksim Omariev (2304)
Titled Tuesday 22nd Dec chess.com INT (7), 2020.12.22
  1. 1.e4
  2. c5
  3. 2.Nf3
  4. d6
  5. 3.d4
  6. cxd4
  7. 4.Nxd4
  8. Nf6
  9. 5.Nc3
  10. a6
  11. 6.Bg5
  12. Nbd7
  13. 7.f3
  14. b5
  15. 8.Qd2
  16. Bb7
  17. 9.O-O-O
  18. Rc8
  19. 10.h4
  20. e6
  21. 11.Kb1
  22. Be7
  23. 12.Bd3
  24. b4
  25. 13.Nce2
  26. d5
  27. 14.Bxf6
  28. Bxf6
  29. 15.Qxb4
  30. Qc7
  31. 16.exd5
  32. Bxd5
  33. 17.Rc1
  34. Rb8
  35. 18.Qa3
  36. Nc5
  37. 19.c4
  38. Ba8
  39. 20.Bc2
  40. O-O
  41. 21.Rhd1
  42. Rb6
  43. 22.b3
  44. Rfb8
  45. 23.g4
  46. Be7
  47. 24.Qb2
  48. Na4
  49. 25.Qa1
  50. Ba3
  51. 26.Bd3
  52. Bxc1
  53. 27.Kxc1
  54. Nc5
  55. 28.Bc2
  56. Qe5
  57. 29.Qc3
  58. a5
  59. 30.f4
  60. Qc7
  61. 31.Qxa5
  62. Be4
  63. 32.Qc3
  64. Bxc2
  65. 33.Qxc2
  66. Rd8
  67. 34.h5
  68. Rbd6
  69. 35.g5
  70. Qb7
  71. 36.g6
  72. hxg6
  73. 37.hxg6
  74. fxg6
  75. 38.Qxg6
  76. Qe4
  77. 39.Qxe4
  78. Nxe4
  79. 40.Kc2
  80. Kf7
  81. 41.b4
  82. g5
  83. 42.c5
  84. Rd5
  85. 43.fxg5
  86. e5
  87. 44.Nc3
  88. Nxc3
  89. 45.Kxc3
  90. Rxd4
  91. 46.Rf1+
  92. Kg6
  93. 47.a4
  94. Rd3+
  95. 48.Kc4
  96. R8d4+
  97. 49.Kb5
  98. Rb3
  99. 50.Rf6+
  100. Kxg5
  101. 51.Re6
  102. Rdxb4+
  103. 52.Kc6
  104. Kf5
  105. 53.Kd6
  106. Rxa4
  107. 54.Rxe5+
  108. Kf4
  109. 55.Rd5
  110. Ra6+
  111. 56.c6
  112. Rc3
  113. 57.Rc5
    1. 解決策:57.Rc5
    2. Rg3
    3. 58.Kd5
      1. 58.Rc4+
      2. Kf5
    4. 58...Rg5+
    5. 59.Kc4
      1. 59.Kd4
      2. Rg8
    6. 59...Ra8
    7. 60.Rxg5
      1. 60.c7
      2. Rc8
    8. 60...Kxg5
    9. 61.Kd5
      1. 61.Kc5
      2. Kf6
      3. 62.Kd6
      4. Rd8+
      5. 63.Kc7
      6. Ke7
    10. 61...Kf6
    11. 62.c7
    12. Ke7
    13. 63.Kc5 with a winning endgame, for example:
      1. 63.Kc6 with a winning endgame, for example:
      2. Rc8
      3. 64.Kb7
      4. Kd7
      5. 65.Kb6
      6. Rxc7
      1. 63.c8=B
      2. Rxc8
    14. 63...Rc8
    15. 64.Kc6
    16. Re8
    17. 65.Kb7
    18. Kd7
    19. 66.Kb6
    20. Re5
    21. 67.Kb7
    22. Rb5+
    23. 68.Ka6
    24. Rb1
    25. 69.c8=Q+
    26. Kxc8
  114. 57...Rxc5
  115. 58.Kxc5
  116. Ke5
  117. 59.c7
  118. Ra1
  119. 60.Kc6
  120. Rc1+
  121. 61.Kd7
  122. Rd1+
  123. 62.Ke7
  124. Rc1
  125. 63.Kd7
  126. Rxc7+
  127. 64.Kxc7
1/2-1/2
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