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Ratkaise 998024: Valkea voittaa loppupelin

FM Onno Elgersma (2310) - R. Van Helvoort (2098)
59th Groningen Open 2023 Groningen NED, 2023.12.28
  2. 1.e4
  3. e6
  4. 2.d4
  5. d5
  6. 3.Rd2
  7. dxe4
  8. 4.Rxe4
  9. Ld7
  10. 5.Rf3
  11. Lc6
  12. 6.Ld3
  13. Rd7
  14. 7.O-O
  15. Rgf6
  16. 8.Rg3
  17. Le7
  18. 9.Te1
  19. O-O
  20. 10.c3
  21. Lxf3
  22. 11.Dxf3
  23. c6
  24. 12.Lc2
  25. Te8
  26. 13.a4
  27. a5
  28. 14.Ld2
  29. c5
  30. 15.dxc5
  31. Rxc5
  32. 16.Tad1
  33. Dd5
  34. 17.De2
  35. Dc6
  36. 18.Dc4
  37. Db6
  38. 19.Lc1
  39. Tac8
  40. 20.De2
  41. Dc6
  42. 21.Td4
  43. Ted8
  44. 22.Th4
  45. g6
  46. 23.Lg5
  47. Td5
  48. 24.De3
  49. Txg5
  50. 25.Dxg5
  51. Rd5
  52. 26.Dh6
  53. Lxh4
  54. 27.Dxh4
  55. Db6
  56. 28.Tb1
  57. Dc7
  58. 29.Re2
  59. Rd7
  60. 30.Rd4
  61. e5
  62. 31.Rf3
  63. Kg7
  64. 32.Td1
  65. R7b6
  66. 33.De4
  67. Rf6
  68. 34.Dxe5
  69. Rc4
  70. 35.Dxc7
  71. Txc7
  72. 36.Tb1
  73. Td7
  74. 37.Rd4
  75. Rd5
  76. 38.g3
  77. Rb4
  78. 39.Td1
  79. Rxc2
  80. 40.Re6+
  81. Kf6
  82. 41.Txd7
  83. Kxe6
  84. 42.Txb7
  85. Re1
  86. 43.b4
  87. Rd3
  88. 44.bxa5
  89. Rxa5
  90. 45.Tb5
  91. Rc6
  92. 46.a5
  93. Kd6
  94. 47.Tb7
  95. Rxa5
  96. 48.Txf7
  97. Rb3
  98. 49.Txh7
  99. Ke5
  100. 50.f4+
  101. Kf5
  102. 51.Kf1
  103. Ke4
  104. 52.Ke2
  105. Rdc1+
  106. 53.Kd1
  107. Rd3
  108. 54.Te7+
  109. Kf3
  110. 55.Kc2
  111. Rbc5
  112. 56.Te8
  113. Rf2
  114. 57.Tg8
  115. Rg4
  116. 58.Txg6
  117. Re4
  118. 59.h3
  119. Re3+
  120. 60.Kd3
  121. Rf2+
  122. 61.Kd4
  123. Rf5+
  124. 62.Ke5
  125. Rxg3
  126. 63.Txg3+
  127. Kxg3
  128. 64.f5
  129. Kxh3
  130. 65.f6
  131. Rg4+
  132. 66.Ke6
  133. Rh6
  134. 67.c4
  135. Kg4
    1. Ratkaisu:67...Kg4
    2. 68.c5
    3. Kf4
      1. 68...Kg5
      2. 69.c6
      3. Kg6 with a winning endgame, for example:
      4. 70.c7
      5. Rf5
      6. 71.c8=Q
      1. 68...Rf5 with a winning endgame, for example:
      2. 69.f7
      3. Rd4+
      4. 70.Kd5
      5. Re2
      6. 71.f8=Q
    5. 69.c6
      1. 69.Kd5
      2. Kf5
      3. 70.f7
      4. Rxf7
      5. 71.c6
      6. Re5
        1. 71...Kf4
        2. 72.c7
        3. Rg5
        4. 73.c8=Q
        1. 71...Kg4
        2. 72.c7
        3. Kf4
        4. 73.c8=Q
        1. 71...Kf6
        2. 72.c7
        3. Kg5
        4. 73.c8=Q
      8. 72.c7
      9. Rg4
        1. 72...Kf4
        2. 73.c8=Q
        1. 72...Rf3
        2. 73.c8=Q+
        1. 72...Kf6
        2. 73.c8=Q
      11. 73.c8=Q+
      1. 69.Kd7
      2. Kf5
      3. 70.c6
      4. Kxf6
      5. 71.c7
      6. Rf5
      7. 72.c8=Q
    7. 69...Kg5 with a winning endgame, for example:
      1. 69...Rf5 with a winning endgame, for example:
      2. 70.c7
      3. Rd4+
      4. 71.Kd5
      5. Rf5
      6. 72.c8=Q
      1. 69...Ke3 with a winning endgame, for example:
      2. 70.c7
      3. Kf3
      4. 71.c8=Q
    9. 70.c7
    10. Rf5
    11. 71.f7
    12. Rd4+
    13. 72.Kd7
    14. Rf3
    15. 73.f8=Q
  137. 68.c5
  138. Kg5
  139. 69.f7
  140. Rxf7
  141. 70.Kxf7
  142. Kf5
  143. 71.c6
1-0
Seuraava ? Apua