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問題 950741: 黒 が 終盤で引き分けとするために

IM Dejan S Pavlovic (2370) - CM Jose Esteban Marin Masis (1938)
Titled Tuesday 22nd Dec chess.com INT (3), 2020.12.22
  2. 1.e4
  3. c5
  4. 2.Nf3
  5. g6
  6. 3.d4
  7. cxd4
  8. 4.Nxd4
  9. Nc6
  10. 5.Nc3
  11. Bg7
  12. 6.Be3
  13. Nf6
  14. 7.Bc4
  15. O-O
  16. 8.Bb3
  17. Qa5
  18. 9.O-O
  19. d6
  20. 10.h3
  21. Nxd4
  22. 11.Bxd4
  23. Be6
  24. 12.Qd3
  25. Rfc8
  26. 13.f4
  27. Bxb3
  28. 14.axb3
  29. Qd8
  30. 15.f5
  31. Nd7
  32. 16.fxg6
  33. hxg6
  34. 17.Bxg7
  35. Kxg7
  36. 18.Qd4+
  37. Ne5
  38. 19.Rxa7
  39. Rxa7
  40. 20.Qxa7
  41. Qc7
  42. 21.Qd4
  43. Qc5
  44. 22.Qxc5
  45. Rxc5
  46. 23.Ra1
  47. b5
  48. 24.Ra5
  49. b4
  50. 25.Rxc5
  51. dxc5
  52. 26.Na4
  53. Nd7
  54. 27.Kf2
  55. Kf6
  56. 28.Ke3
  57. Ke5
  58. 29.c3
  59. e6
  60. 30.Kd3
  61. f5
  62. 31.exf5
  63. exf5
  64. 32.Kc4
  65. Kf4
  66. 33.Nxc5
  67. Nxc5
  68. 34.Kxc5
  69. bxc3
  70. 35.bxc3
  71. Kg3
  72. 36.b4
  73. Kxg2
  74. 37.b5
  75. f4
  76. 38.b6
  77. f3
  78. 39.b7
  79. f2
  80. 40.b8=Q
  81. f1=Q
  82. 41.Qe5
  83. Qf5
  84. 42.Kd4
  85. Qd7+
  86. 43.Kc5
  87. Qc8+
  88. 44.Kd5
  89. Qb7+
  90. 45.Ke6
  91. Qc8+
  92. 46.Kf7
  93. Qf5+
  94. 47.Qf6
  95. Kxh3
  96. 48.c4
  97. Qd7+
  98. 49.Kxg6
    1. 解決策:49.Kxg6
    2. Qg4+ 黒のクイーンが、マス f5を守っている白のキングを攻撃します。
    3. 50.Kf7
    4. Qd7+
      1. 50...Qxc4+
      2. 51.Qe6+
      3. Qxe6+
        1. 51...Qg4
        2. 52.Qxg4+
        3. Kxg4
    6. 51.Qe7
    7. Qf5+
    8. 52.Qf6
    9. Qd7+
      1. 52...Kg4
      2. 53.Kg7
        1. 53.Qxf5+
        2. Kxf5
        3. 54.c5 反復による引き分け
        1. 53.Ke7
        2. Qc5+
        3. 54.Qd6
        4. Qxc4
        5. 55.Qe6+
        6. Qxe6+
      4. 53...Qg5+
        1. 53...Qd7+ 反復による引き分け
      6. 54.Qxg5+
      7. Kxg5
      8. 55.Kf7
        1. 55.c5
        2. Kf5
        3. 56.Kh6 with a drawn endgame, for example:
        4. Ke6
        5. 57.Kg6
        6. Kd5
        7. 58.Kf7
        8. Kxc5
        1. 55.Kf8 with a drawn endgame, for example:
        2. Kf4
        3. 56.Kf7
        4. Ke5
        5. 57.c5
        6. Kd5
        7. 58.Ke7
        8. Kxc5
      10. 55...Kf5
      11. 56.c5
        1. 56.Ke7
        2. Ke5
        3. 57.Kf7 with a drawn endgame, for example:
        4. Kd4
        5. 58.Ke7
        6. Kxc4
      13. 56...Ke5
      14. 57.Ke7
        1. 57.c6
        2. Kd6
        3. 58.c7 with a drawn endgame, for example:
        4. Kxc7
        1. 57.Ke8
        2. Kd5
        3. 58.Kd7
        4. Kxc5
      16. 57...Kd5
      17. 58.Kd7
        1. 58.c6
        2. Kxc6
        1. 58.Kd8 with a drawn endgame, for example:
        2. Kxc5
      19. 58...Kxc5
    11. 53.Qe7
    12. Qf5+
    13. 54.Qf6
    14. Qd7+ 反復による引き分け
      1. 54...Kg4
      2. 55.Kg7
        1. 55.Qxf5+
        2. Kxf5
        3. 56.c5
        4. Ke5
        5. 57.Kg6
        6. Kd5
        7. 58.Kf7 with a drawn endgame, for example:
        8. Kxc5
        1. 55.Ke7
        2. Qc5+
        3. 56.Qd6
        4. Qxc4
        5. 57.Qe6+
        6. Qxe6+
      4. 55...Qg5+
        1. 55...Qd7+
        2. 56.Kh6 with a drawn endgame, for example:
          1. 56.Qf7 with a drawn endgame, for example:
          2. Qd4+
          3. 57.Kh7
          4. Qe5
          5. 58.Kh6
          6. Qh8+
          7. 59.Kg6
          8. Qh5+
          9. 60.Kf6
          10. Qxf7+
          11. 61.Kxf7
          12. Kf5
          13. 62.c5
          14. Ke5
          15. 63.Ke7
          16. Kd5
          17. 64.c6
          18. Kxc6
        4. 56...Qd2+
        5. 57.Kg7
        6. Qd7+
        7. 58.Qf7
        8. Qd4+
        9. 59.Kh7
        10. Qe5
        11. 60.Kh6
        12. Qh8+
        13. 61.Kg6
        14. Qh5+
        15. 62.Kf6
        16. Qxf7+
        17. 63.Kxf7
        18. Kf5
        19. 64.c5
        20. Ke5
        21. 65.Ke7
        22. Kd5
        23. 66.c6
        24. Kxc6
      6. 56.Qxg5+
      7. Kxg5
      8. 57.c5
        1. 57.Kf7
        2. Kf5
        3. 58.c5
        4. Ke5
        5. 59.Kg6
        6. Kd5
        7. 60.Kf7 with a drawn endgame, for example:
        8. Kxc5
        1. 57.Kf8 with a drawn endgame, for example:
        2. Kf4
        3. 58.Kf7
        4. Ke5
        5. 59.c5
        6. Kd5
        7. 60.Ke7
        8. Kxc5
      10. 57...Kf5
      11. 58.Kf7
        1. 58.Kf8 with a drawn endgame, for example:
        2. Ke5
        3. 59.c6
        4. Kd6
        5. 60.c7
        6. Kxc7
      13. 58...Ke5
      14. 59.Ke7
        1. 59.c6
        2. Kd6
        3. 60.c7 with a drawn endgame, for example:
        4. Kxc7
        1. 59.Ke8
        2. Kd5
        3. 60.Kd7
        4. Kxc5
      16. 59...Kd5
      17. 60.Kd7
        1. 60.c6
        2. Kxc6
        1. 60.Kd8 with a drawn endgame, for example:
        2. Kxc5
      19. 60...Kxc5
  100. 49...Qe8+
  101. 50.Qf7
  102. Qc6+
  103. 51.Kg7
  104. Qg2+
  105. 52.Kf8
  106. Qa8+
  107. 53.Ke7
  108. Qb7+
  109. 54.Kf6
  110. Qc6+
  111. 55.Qe6+
1-0
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