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Puzzle 940530: Zwart naar winst in het eindspel

FM M. G Gahan (2265) - FM Olzhas Khamzin (2301)
Titled Tuesday 9th Mar chess.com INT (8), 2021.03.09
  2. 1.e4
  3. e6
  4. 2.b3
  5. d5
  6. 3.Bb2
  7. dxe4
  8. 4.Nc3
  9. Nf6
  10. 5.g4
  11. Bd7
  12. 6.Bg2
  13. Bc6
  14. 7.Qe2
  15. h5
  16. 8.h3
  17. Nd5
  18. 9.Bxe4
  19. hxg4
  20. 10.Qxg4
  21. Nxc3
  22. 11.Bxc3
  23. Qh4
  24. 12.Qxh4
  25. Rxh4
  26. 13.Bxc6+
  27. Nxc6
  28. 14.Nf3
  29. Rh5
  30. 15.O-O-O
  31. g6
  32. 16.h4
  33. Bb4
  34. 17.Ng5
  35. Bxc3
  36. 18.dxc3
  37. Rd8
  38. 19.Rde1
  39. Ke7
  40. 20.Re4
  41. Rdh8
  42. 21.Nf3
  43. Rf5
  44. 22.Rh3
  45. Rhh5
  46. 23.Kd2
  47. Ne5
  48. 24.Nxe5
  49. Rxe5
  50. 25.Ke3
  51. Rxe4+
  52. 26.Kxe4
  53. g5
  54. 27.Kf3
  55. Rxh4
  56. 28.Rxh4
  57. gxh4
  58. 29.Kg4
  59. Kf6
  60. 30.Kxh4
  61. Kf5
  62. 31.Kg3
  63. Ke4
  64. 32.a4
  65. c5
  66. 33.Kg4
  67. e5
  68. 34.Kg5
  69. Kf3
  70. 35.Kf5
  71. Kxf2
  72. 36.Kxe5
  73. Ke3
  74. 37.b4
  75. c4
  76. 38.b5
  77. f5
  78. 39.Kxf5
  79. Kd2
  80. 40.Ke4
  81. Kxc3
  82. 41.Kd5
  83. Kb4
  84. 42.Kd4
  85. b6
  86. 43.Kd5
  87. Kc3
  88. 44.Kc6
  89. Kxc2
  90. 45.Kb7
  91. Kb3
  92. 46.Kxa7
  93. c3
  94. 47.a5
    1. Oplossing:47.a5
    2. c2
    3. 48.axb6
      1. 48.a6 with a winning endgame, for example:
      2. Kb4
      3. 49.Kb8
      4. Kxb5
      5. 50.a7
      6. c1=Q
      1. 48.Kb8
      2. bxa5
      3. 49.b6 with a winning endgame, for example:
      4. c1=Q
      1. 48.Kxb6 with a winning endgame, for example:
      2. c1=Q
      3. 49.a6
      4. Qc8
      5. 50.a7
      6. Kc4
      7. 51.Ka5
      8. Qc5
      9. 52.a8=Q
      10. Qxb5#
    5. 48...c1=Q
    6. 49.b7 with a winning endgame, for example:
      1. 49.Ka8 with a winning endgame, for example:
      2. Qa3+
      3. 50.Kb8
      4. Kc4
      5. 51.b7
      6. Kxb5
      1. 49.Kb8 with a winning endgame, for example:
      2. Ka4
      3. 50.Ka8
      4. Kxb5
    8. 49...Qc7
    9. 50.b6
    10. Qd7
    11. 51.Ka8
    12. Qa4+
    13. 52.Kb8
    14. Qa5
    15. 53.Kc7
    16. Qc5+
    17. 54.Kb8
    18. Qxb6
  96. 47...c2
  97. 48.axb6
  98. c1=Q
  99. 49.b7
  100. Qc5+
  101. 50.Ka8
  102. Qd5
  103. 51.Ka7
  104. Qd7
  105. 52.Ka8
  106. Qd5
  107. 53.Ka7
  108. Qc5+
  109. 54.Ka8
  110. Qa3+
  111. 55.Kb8
  112. Kc4
  113. 56.b6
  114. Kb5
  115. 57.Kc7
  116. Qe7+
  117. 58.Kc8
  118. Kc6
  119. 59.b8=Q
  120. Qd7#
0-1
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