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問題 994859: 黒 が 終盤を勝つとするために

WIM Amina Mezioud (2056) - WIM Amna Nouman (1909)
Olympiad Women 2018 Batumi GEO, 2018.09.30
  2. 1.e4
  3. e5
  4. 2.Nf3
  5. Nc6
  6. 3.Bc4
  7. Bc5
  8. 4.d3
  9. d6
  10. 5.c3
  11. Nf6
  12. 6.O-O
  13. O-O
  14. 7.Bb3
  15. h6
  16. 8.Nbd2
  17. a6
  18. 9.Nc4
  19. Ba7
  20. 10.Ne3
  21. Be6
  22. 11.Bc2
  23. d5
  24. 12.Qe2
  25. Re8
  26. 13.Rd1
  27. d4
  28. 14.Nf1
  29. Qd6
  30. 15.h3
  31. b5
  32. 16.Ng3
  33. Qd7
  34. 17.Kh2
  35. Qd6
  36. 18.Bb3
  37. a5
  38. 19.Nh4
  39. a4
  40. 20.Bxe6
  41. fxe6
  42. 21.Bd2
  43. Rf8
  44. 22.Rf1
  45. dxc3
  46. 23.bxc3
  47. Rad8
  48. 24.Ng6
  49. Rf7
  50. 25.Be3
  51. Kh7
  52. 26.Bxa7
  53. Kxg6
  54. 27.Be3
  55. Qxd3
  56. 28.Qxd3
  57. Rxd3
  58. 29.Rab1
  59. Rxc3
  60. 30.Rxb5
  61. Nxe4
  62. 31.Nxe4
  63. Rxe3
  64. 32.fxe3
  65. Rxf1
  66. 33.Rc5
  67. Nb4
  68. 34.a3
  69. Nd5
  70. 35.Rc4
  71. Nb6
  72. 36.Rxc7
  73. Ra1
  74. 37.Rc3
  75. Nd5
  76. 38.Rd3
  77. Re1
  78. 39.Nc5
  79. Rxe3
  80. 40.Rxe3
  81. Nxe3
  82. 41.Nxa4
  83. Nc4
  84. 42.Nc5
  85. Nxa3
  86. 43.Nxe6
  87. Kf6
  88. 44.Nc5
  89. Kf5
  90. 45.g4+
  91. Kf6
  92. 46.Kg3
  93. Nb5
  94. 47.h4
  95. Nd6
  96. 48.Kf3
  97. Ke7
  98. 49.Ke3
  99. g6
  100. 50.Kf3
  101. h5
  102. 51.g5
  103. Nf5
  104. 52.Ke4
  105. Nxh4
  106. 53.Kxe5
  107. Nf3+
  108. 54.Kf4
  109. Nd4
  110. 55.Ke5
  111. Nf3+
  112. 56.Kf4
  113. Nd2
  114. 57.Ke5
  115. Nc4+
  116. 58.Kf4
  117. Nd6
  118. 59.Ke5
  119. Nf7+
  120. 60.Kf4
  121. Nd8
  122. 61.Ke5
  123. Nf7+
  124. 62.Kf4
  125. Nd6
  126. 63.Ke5
  127. Nf5
  128. 64.Kf4
  129. Nd4
  130. 65.Ke5
  131. Ne2
  132. 66.Nd3
  133. Kf7
  134. 67.Nf2
  135. Ng1
  136. 68.Nd3
  137. Nh3
  138. 69.Ne1
  139. Nxg5
  140. 70.Ng2
  141. Nh3
  142. 71.Ne3
  143. Kg7
  144. 72.Ng2
  145. Nf2
  146. 73.Ne3
  147. Kh6
  148. 74.Kf4
  149. g5+
  150. 75.Kf3
  151. Nd3
  152. 76.Ke4
  153. Nc5+
  154. 77.Kf5
  155. Nd7
  156. 78.Nc4
  157. h4
  158. 79.Nd6
  159. Kh5
  160. 80.Ne4
  161. h3
  162. 81.Nf2
    1. 解決策:81.Nf2
    2. h2
    3. 82.Ke4
    4. g4
      1. 82...Ne5
      2. 83.Kxe5
        1. 83.Nh1
        2. Kh4
        3. 84.Kxe5
        4. Kh3
        5. 85.Kd4
        6. Kg2
        7. 86.Ke3
        8. Kxh1
        9. 87.Kf2
        10. g4
        11. 88.Kg3
        12. Kg1
        13. 89.Kxg4
        14. h1=Q
      4. 83...Kh4
      5. 84.Kf5
        1. 84.Nh1
        2. Kh3
        3. 85.Kd4
        4. Kg2
        5. 86.Ke3
        6. Kxh1
        7. 87.Kf2
        8. g4
        9. 88.Kg3
        10. Kg1
        11. 89.Kxg4
        12. h1=Q
      7. 84...g4
        1. 84...Kg3
        2. 85.Ne4+ with a winning endgame, for example:
          1. 85.Ng4
          2. h1=Q
          1. 85.Nh1+
          2. Kg2
          3. 86.Kxg5
          4. Kxh1
          5. 87.Kg6
          6. Kg1
          7. 88.Kh7
          8. h1=Q+
        4. 85...Kg2
        5. 86.Nxg5
        6. h1=Q
      9. 85.Kf4
        1. 85.Nxg4
        2. h1=Q
        1. 85.Nh1
        2. g3
        3. 86.Ke4
        4. g2
        5. 87.Nf2
        6. g1=Q
      11. 85...g3
      12. 86.Nh1
        1. 86.Ng4 with a winning endgame, for example:
        2. h1=Q
        1. 86.Ne4
        2. g2
        3. 87.Ng5 with a winning endgame, for example:
        4. h1=Q
      14. 86...g2
      15. 87.Nf2 with a winning endgame, for example:
        1. 87.Ng3 with a winning endgame, for example:
        2. g1=Q
      17. 87...g1=Q
  164. 81...h2
  165. 82.Ke4
  166. g4
  167. 83.Kf4
  168. Kh4
  169. 84.Nh1
  170. Kh3
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