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الغاز 785322: أسود إلى فوز في النهاية

GM Ermes Espinosa Veloz (2485) - IM Aleksandr Ostrovskiy (2431)
Titled Tuesday 30th Mar chess.com INT (10), 2021.03.30
  2. 1.e4
  3. c6
  4. 2.d4
  5. d5
  6. 3.e5
  7. c5
  8. 4.Nf3
  9. Bg4
  10. 5.c4
  11. cxd4
  12. 6.cxd5
  13. Qxd5
  14. 7.Nc3
  15. Qa5
  16. 8.Qxd4
  17. Bxf3
  18. 9.gxf3
  19. Nc6
  20. 10.Bb5
  21. Qxb5
  22. 11.Nxb5
  23. Nxd4
  24. 12.Nxd4
  25. e6
  26. 13.Nb5
  27. Rd8
  28. 14.Nxa7
  29. Rd5
  30. 15.Be3
  31. Ne7
  32. 16.Rc1
  33. Kd7
  34. 17.f4
  35. g5
  36. 18.fxg5
  37. Nf5
  38. 19.O-O
  39. Bg7
  40. 20.Rfd1
  41. Nxe3
  42. 21.fxe3
  43. Bxe5
  44. 22.e4
  45. Rxd1+
  46. 23.Rxd1+
  47. Ke7
  48. 24.Nb5
  49. Bxb2
  50. 25.Kf2
  51. h6
  52. 26.gxh6
  53. Rxh6
  54. 27.Kg2
  55. Be5
  56. 28.h3
  57. Rg6+
  58. 29.Kf2
  59. Rg3
  60. 30.Rh1
  61. Rd3
  62. 31.a4
  63. Rd2+
  64. 32.Kf3
  65. Ra2
  66. 33.h4
  67. Ra3+
  68. 34.Ke2
  69. Rxa4
  70. 35.Kd3
  71. Rb4
  72. 36.Na7
  73. Rb3+
  74. 37.Kc4
  75. Re3
  76. 38.h5
  77. Rxe4+
  78. 39.Kd3
  79. Rd4+
  80. 40.Ke3
  81. Rd8
  82. 41.Nb5
  83. f5
  84. 42.Kf3
  85. Kf6
  86. 43.h6
  87. Kg6
  88. 44.h7
  89. Rh8
  90. 45.Re1
  91. Kf6
  92. 46.Rh1
  93. Bb8
  94. 47.Rh6+
  95. Kg5
  96. 48.Rxe6
  97. Rxh7
  98. 49.Nd4
  99. Rh3+
  100. 50.Kg2
  101. Rd3
  102. 51.Nf3+
  103. Kf4
  104. 52.Ne1
  105. Rd2+
  106. 53.Kf1
  107. Ba7
  108. 54.Ng2+
  109. Kg3
  110. 55.Rg6+
  111. Kf3
  112. 56.Nh4+
  113. Ke4
  114. 57.Re6+
  115. Kd5
  116. 58.Re7
  117. Rb2
  118. 59.Nxf5
  119. Rf2+
  120. 60.Ke1
  121. Rxf5
  122. 61.Rxb7
  123. Bc5
  124. 62.Ke2
  125. Kc4
  126. 63.Rd7
  127. Rf2+
  128. 64.Ke1
  129. Rh2
  130. 65.Kf1
  131. Bd4
  132. 66.Re7
    1. حل:66.Re7
    2. Rf2+
    3. 67.Ke1
      1. 67.Kg1
      2. Re2+
      3. 68.Kf1
      4. Rxe7
    5. 67...Kd3
    6. 68.Re8 with a winning endgame, for example:
      1. 68.Kd1 with a winning endgame, for example:
      2. Rh2
      3. 69.Re8
      4. Rb2
      5. 70.Rc8
      6. Bb6
      7. 71.Rc6
      8. Be3
      9. 72.Rd6+
      10. Bd4
      11. 73.Rc6
      12. Rd2+
      13. 74.Kc1
      14. Rf2
      15. 75.Kb1
      16. Rb2+
      17. 76.Kc1
      18. Rb5
      19. 77.Rd6
      20. Ra5
      21. 78.Kd1
      22. Ra1#
      1. 68.Rh7 with a winning endgame, for example:
      2. Rf3
      3. 69.Rh1
      4. Be3
      5. 70.Rh2
      6. Rg3
      7. 71.Rh1
      8. Rg4
      9. 72.Kf1
      10. Kd2
      11. 73.Rh2+
      12. Kd1
      13. 74.Rh1
      14. Rg5
      15. 75.Rh2
      16. Rg1#
    8. 68...Rf7
    9. 69.Kd1
    10. Rf1+
    11. 70.Re1
    12. Rf2
    13. 71.Re7
    14. Rh2
    15. 72.Re8
    16. Rb2
    17. 73.Rc8
    18. Bb6
    19. 74.Rc6
    20. Be3
    21. 75.Rd6+
    22. Bd4
    23. 76.Rc6
    24. Rd2+
    25. 77.Kc1
    26. Rf2
    27. 78.Kb1
    28. Rb2+
    29. 79.Kc1
    30. Rb5
    31. 80.Rd6
    32. Ra5
    33. 81.Kd1
    34. Ra1#
  134. 66...Kd3
  135. 67.Rd7
  136. Rf2+
  137. 68.Ke1
  138. Rf8
  139. 69.Rd6
  140. Rf7
  141. 70.Rd8
  142. Ke3
  143. 71.Kd1
  144. Rb7
  145. 72.Kc2
  146. Rb2+
  147. 73.Kc1
  148. Ra2
  149. 74.Re8+
  150. Kd3
0-1

This puzzle is part of the following Puzzle Academy skills:
  • Rook & Bishop vs. Rook: Winning (Level 4)
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