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Puzzle 961877: Zwart naar winst in het eindspel

IM Nguyen Van Huy (2468) - IM Ariel Erenberg (2482)
FSGM November 2019 Budapest HUN, 2019.11.05
  2. 1.d4
  3. Nf6
  4. 2.c4
  5. e6
  6. 3.Nf3
  7. b6
  8. 4.g3
  9. Ba6
  10. 5.Qa4
  11. Bb7
  12. 6.Bg2
  13. c5
  14. 7.dxc5
  15. bxc5
  16. 8.O-O
  17. Be7
  18. 9.Nc3
  19. O-O
  20. 10.Bf4
  21. Qb6
  22. 11.Rfd1
  23. d6
  24. 12.Rd2
  25. h6
  26. 13.Qb5
  27. Qc7
  28. 14.Rad1
  29. e5
  30. 15.Be3
  31. a6
  32. 16.Qb3
  33. Nc6
  34. 17.Nh4
  35. Rab8
  36. 18.Bxc6
  37. Bxc6
  38. 19.Qc2
  39. Rfd8
  40. 20.Nf5
  41. Bf8
  42. 21.f3
  43. Rd7
  44. 22.Bf2
  45. g6
  46. 23.Ne3
  47. Qc8
  48. 24.b3
  49. Rdb7
  50. 25.Rb1
  51. h5
  52. 26.Qd1
  53. Qe6
  54. 27.Ned5
  55. Bxd5
  56. 28.Nxd5
  57. Nxd5
  58. 29.Rxd5
  59. Be7
  60. 30.e4
  61. h4
  62. 31.g4
  63. Rb6
  64. 32.Be3
  65. f5
  66. 33.h3
  67. fxg4
  68. 34.fxg4
  69. a5
  70. 35.a4
  71. Qc8
  72. 36.Qd3
  73. Bf8
  74. 37.Bg5
  75. Qb7
  76. 38.Bxh4
  77. Rxb3
  78. 39.Rxb3
  79. Qxb3
  80. 40.Qxb3
  81. Rxb3
  82. 41.Bd8
  83. Rxh3
  84. 42.Bxa5
  85. Ra3
  86. 43.Bc7
  87. Rxa4
  88. 44.Bxd6
  89. Bxd6
  90. 45.Rxd6
  91. Rxc4
  92. 46.Rxg6+
  93. Kf7
  94. 47.Rc6
  95. Rxe4
  96. 48.Rxc5
  97. Rxg4+
  98. 49.Kf2
  99. Ke6
  100. 50.Rc3
  101. Ra4
  102. 51.Rb3
  103. Kf5
  104. 52.Ke2
  105. Ra2+
  106. 53.Ke1
  107. Kf4
  108. 54.Rb4+
  109. e4
  110. 55.Rb3
  111. Ke5
  112. 56.Rh3
  113. Kd4
  114. 57.Rg3
  115. Ra1+
  116. 58.Kd2
    1. Oplossing:58.Kd2
    2. e3+
    3. 59.Kc2
      1. 59.Ke2
      2. Ra2+
      3. 60.Ke1
      4. Ra1+
      5. 61.Ke2
      1. 59.Rxe3
      2. Ra2+
      3. 60.Kc1
      4. Kxe3
    5. 59...e2
      1. 59...Ra2+
      2. 60.Kb1 with a winning endgame, for example:
        1. 60.Kb3 with a winning endgame, for example:
        2. e2
        3. 61.Rg1
        4. Ra7
        5. 62.Kc2
        6. Ke3
        7. 63.Rh1
        8. Rc7+
        9. 64.Kb3
        10. Kd2
        11. 65.Rh2
        12. Kd1
        13. 66.Rh1+
        14. e1=Q
        1. 60.Kc1 with a winning endgame, for example:
        2. e2
        3. 61.Rg1
        4. Ra1+
        5. 62.Kd2
        6. Rxg1
        1. 60.Kd1
        2. Kd3
        3. 61.Kc1 with a winning endgame, for example:
        4. Rh2
        5. 62.Rg7
        6. Rh1+
        7. 63.Kb2
        8. e2
        9. 64.Rd7+
        10. Kc4
        11. 65.Rc7+
        12. Kd4
        13. 66.Rd7+
        14. Kc5
        15. 67.Re7
        16. e1=Q
      4. 60...Rf2
      5. 61.Rg7
      6. e2
      7. 62.Rd7+
      8. Kc3
      9. 63.Rc7+
      10. Kd2
      11. 64.Rd7+
      12. Ke1
      13. 65.Rh7
      14. Kf1
      15. 66.Rh1+
      16. Kg2
      17. 67.Rc1
      18. Rf1
      19. 68.Kb2
      20. Rxc1
      1. 59...Ke4
      2. 60.Rg8 with a winning endgame, for example:
      3. e2
      4. 61.Re8+
      5. Kf3
      6. 62.Rf8+
      7. Kg4
      8. 63.Rg8+
      9. Kf5
      10. 64.Rf8+
      11. Kg6
      12. 65.Re8
      13. e1=Q
    7. 60.Rd3+
      1. 60.Rg4+ with a winning endgame, for example:
      2. Kd5
      3. 61.Rg5+
      4. Ke6
      5. 62.Rg6+
      6. Kf7
      7. 63.Rg4
      8. e1=Q
    9. 60...Ke4
      1. 60...Kc4
      2. 61.Rc3+ with a winning endgame, for example:
      3. Kd4
      4. 62.Rd3+
      5. Ke4
      6. 63.Rd7
      7. Ra2+
      8. 64.Kb3
      9. Ra5
      10. 65.Re7+
      11. Re5
      12. 66.Rc7
      13. e1=Q
      1. 60...Kc5
      2. 61.Rc3+ with a winning endgame, for example:
        1. 61.Re3
        2. e1=R
        3. 62.Rxe1
        4. Rxe1
      4. 61...Kd4
      5. 62.Rd3+
      6. Ke4
      7. 63.Rd7
      8. Ra2+
      9. 64.Kb3
      10. Ra5
      11. 65.Re7+
      12. Re5
      13. 66.Rc7
      14. e1=Q
    11. 61.Rd7 with a winning endgame, for example:
      1. 61.Rd8 with a winning endgame, for example:
      2. Ra2+
      3. 62.Kb3
      4. Ra5
      5. 63.Rg8
      6. e1=Q
      1. 61.Rb3 with a winning endgame, for example:
      2. e1=Q
      1. 61.Kb3
      2. Kxd3
    13. 61...Ra2+
    14. 62.Kb3
    15. Ra5
    16. 63.Re7+
    17. Re5
    18. 64.Rc7
    19. e1=Q
  118. 58...Ra2+
  119. 59.Ke1
  120. Rc2
  121. 60.Ra3
  122. Rc3
  123. 61.Rxc3
  124. Kxc3
  125. 62.Ke2
  126. Kd4
  127. 63.Kd2
  128. e3+
  129. 64.Ke2
  130. Ke4
  131. 65.Ke1
  132. Kd3
  133. 66.Kd1
  134. e2+
  135. 67.Ke1
  136. Ke3 stalemate
1/2-1/2
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