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Puzzle 207725: Zwart naar winst in het eindspel

Rosalie Werner (1397) - Amy Charlize Bress (1655)
Girls U12 German Championship Willingen (10), 2017.06.09
  2. 1.e4
  3. c5
  4. 2.Nf3
  5. e6
  6. 3.d4
  7. cxd4
  8. 4.Nxd4
  9. Nf6
  10. 5.Nc3
  11. Bb4
  12. 6.Bg5
  13. Bxc3+
  14. 7.bxc3
  15. Qa5
  16. 8.Nb5
  17. Nxe4
  18. 9.Qh5
  19. Nxg5
  20. 10.Qxg5
  21. O-O
  22. 11.Qg3
  23. Nc6
  24. 12.Be2
  25. a6
  26. 13.Nd6
  27. Qc7
  28. 14.Bf3
  29. b5
  30. 15.Bxc6
  31. Qxc6
  32. 16.O-O
  33. Bb7
  34. 17.Nxb7
  35. Qxb7
  36. 18.Rfe1
  37. Rac8
  38. 19.Re3
  39. Qc7
  40. 20.Qh4
  41. Qd8
  42. 21.Qh5
  43. Qf6
  44. 22.Qh3
  45. Rc4
  46. 23.Rd1
  47. d5
  48. 24.Rdd3
  49. Rh4
  50. 25.Qg3
  51. Qf4
  52. 26.Qxf4
  53. Rxf4
  54. 27.Rd4
  55. Rxd4
  56. 28.cxd4
  57. Rc8
  58. 29.Re2
  59. Rc4
  60. 30.Rd2
  61. a5
  62. 31.Kf1
  63. b4
  64. 32.Ke2
  65. Kf8
  66. 33.Kd1
  67. Ke7
  68. 34.Kc1
  69. Kd6
  70. 35.f4
  71. a4
  72. 36.Kb2
  73. Kc6
  74. 37.Rd3
  75. h6
  76. 38.c3
  77. bxc3+
  78. 39.Rxc3
  79. Rxc3
  80. 40.Kxc3
  81. Kb5
  82. 41.a3
  83. g5
  84. 42.g3
  85. f6
  86. 43.Kd3
  87. gxf4
  88. 44.gxf4
  89. h5
  90. 45.h4
  91. e5
  92. 46.fxe5
  93. fxe5
  94. 47.dxe5
  95. Kc5
  96. 48.Kc3
  97. d4+
  98. 49.Kd3
  99. Kd5
  100. 50.e6
  101. Kxe6
  102. 51.Kxd4
  103. Kf5
  104. 52.Kd5
  105. Kg4
  106. 53.Ke4
  107. Kxh4
  108. 54.Kf4
  109. Kh3
  110. 55.Kf3
  111. h4
  112. 56.Kf2
  113. Kg4
  114. 57.Kg2
  115. Kf4
  116. 58.Kh3
  117. Ke4
  118. 59.Kxh4
  119. Kd4
  120. 60.Kg4
  121. Kc4
  122. 61.Kf4
    1. Oplossing:61.Kf4
    2. Kb3
    3. 62.Ke3
      1. 62.Ke5
      2. Kxa3
      3. 63.Ke4 with a winning endgame, for example:
      4. Kb2
      5. 64.Kd3
      6. a3
      7. 65.Kc4
      8. a2
      9. 66.Kb4
      10. a1=Q
      1. 62.Ke4
      2. Kxa3
      3. 63.Kd3
    5. 62...Kxa3
    6. 63.Kd3
      1. 63.Ke4 with a winning endgame, for example:
      2. Kb2
      3. 64.Kd3
      4. a3
      5. 65.Kc4
      6. a2
      7. 66.Kb4
      8. a1=Q
      1. 63.Kd4
      2. Kb2
      3. 64.Kc4
    8. 63...Kb2
      1. 63...Kb3
      2. 64.Kd2
      3. a3
        1. 64...Kb2
        2. 65.Kd3
        3. a3
          1. 65...Kb1
          2. 66.Kc3
            1. 66.Kc4
            2. a3
            3. 67.Kb3
            4. a2
            5. 68.Ka3
            6. a1=Q+
            1. 66.Kd2
            2. a3
            3. 67.Kc3
            4. a2
            5. 68.Kb3
            6. a1=Q
          4. 66...a3
          5. 67.Kb3
            1. 67.Kb4
            2. a2
            3. 68.Kc4
            4. a1=Q
          7. 67...a2
          8. 68.Ka3
          9. a1=Q+
            1. 68...a1=R+
          1. 65...Kb3
          2. 66.Kd2
        5. 66.Kc4 with a winning endgame, for example:
          1. 66.Kd2
          2. a2
          3. 67.Kd1
          4. a1=Q+
        7. 66...a2
        8. 67.Kb4
        9. a1=Q
      5. 65.Kc1
        1. 65.Kd3
        2. a2
        3. 66.Kd2
        4. a1=Q
      7. 65...a2
      8. 66.Kd2
        1. 66.Kd1
        2. a1=Q+
      10. 66...a1=Q
        1. 66...a1=R
    10. 64.Kc4
    11. a3
    12. 65.Kb4
      1. 65.Kb5 with a winning endgame, for example:
      2. a2
      3. 66.Kc4
      4. a1=Q
    14. 65...a2
      1. 65...Ka2
      2. 66.Ka4
      3. Kb2
      4. 67.Kb4
    16. 66.Ka4
    17. a1=Q+
      1. 66...a1=R+
  124. 61...Kb3
  125. 62.Ke4
  126. Kxa3
  127. 63.Kd3
  128. Kb2
  129. 64.Kc4
  130. a3
  131. 65.Kd5
  132. a2
  133. 66.Ke5
  134. a1=Q
  135. 67.Ke4
  136. Qd1
  137. 68.Ke3
  138. Qg4
  139. 69.Kd3
  140. Kb3
  141. 70.Ke3
  142. Kc4
  143. 71.Kd2
  144. Qf3
  145. 72.Ke1
  146. Qg2
  147. 73.Kd1
  148. Kd3
  149. 74.Ke1
  150. Qe2#
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