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問題 300770: 黒 が 防御とするために

FM Vinicius Tine Martins (2299) - CM Guillermo Andres Ribero (1875)
Titled Tuesday 18th May chess.com INT (2), 2021.05.18
  2. 1.d4
  3. Nf6
  4. 2.c4
  5. c5
  6. 3.e3
  7. d5
  8. 4.Nf3
  9. e6
  10. 5.Nc3
  11. Nc6
  12. 6.b3
  13. dxc4
  14. 7.Bxc4
  15. cxd4
  16. 8.exd4
  17. Bb4
  18. 9.Bb2
  19. Qa5
  20. 10.Qd3
  21. Ne4
  22. 11.Qxe4
  23. Bxc3+
  24. 12.Bxc3
  25. Qxc3+
  26. 13.Ke2
  27. O-O
  28. 14.Rac1
  29. Qb2+
  30. 15.Rc2
    1. 解決策:15.Rc2
      1. 脅威を与える:
      2. 16.Rxb2
    3. Qa3
    4. さて、もし16.Rb2
    5. Qxb2+
  32. 15...Qa3
  33. 16.Rd2
  34. Qe7
  35. 17.h4
  36. a6
  37. 18.Bd3
  38. f5
  39. 19.Qf4
  40. Qf6
  41. 20.Ne5
  42. Ne7
  43. 21.g3
  44. Nd5
  45. 22.Qf3
  46. b5
  47. 23.Rc1
  48. Bb7
  49. 24.Kf1
  50. f4
  51. 25.Nd7
  52. Qe7
  53. 26.Nxf8
  54. Ne3+
  55. 27.fxe3
  56. Bxf3
  57. 28.Nxh7
  58. fxe3
  59. 29.Rdc2
  60. Qd6
  61. 30.Ng5
  62. Qxg3
  63. 31.Rc8+
1-0

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