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Puzzles (3 cohencoins award for each match):

Puzzle EIMra: 376

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/DiZMGxd2"] [Date "2026.05.27"] [White "PJ"] [Black "Trekker"] [Result "1/2-1/2"] [UTCDate "2026.05.27"] [UTCTime "20:30:02"] [WhiteElo "2010"] [BlackElo "1735"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+7"] [WhiteTitle "GM"] [BlackTitle "GM🎅"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B03"] [Opening "Alekhine Defense: Exchange Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 Nf6?! { (0.33 → 1.02) Inaccuracy. c5 was best. } (1... c5 2. Nf3 d6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nc6 6. O-O h6 7. Nd5 Nf6 8. Nxf6+) 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 { B03 Alekhine Defense: Exchange Variation } exd6 6. Nc3 Be7 7. Be3 O-O 8. Bd3 Bf6 9. Nf3 c6?! { (0.52 → 1.05) Inaccuracy. Nc6 was best. } (9... Nc6 10. O-O) 10. h4 Bg4?? { (0.73 → 3.81) Blunder. h6 was best. } (10... h6 11. Bb1 Re8 12. b3 h5 13. a4 Bg4 14. O-O d5 15. Qc2 g6 16. Ng5 Nc8 17. a5) 11. Bg5?? { (3.81 → -0.92) Blunder. Bxh7+ was best. } (11. Bxh7+ Kxh7 12. Ng5+ Kg8 13. Qxg4 Qd7 14. Qh5 Qf5 15. g4 Qg6 16. Qxg6 fxg6 17. Ne6 Rf7) 11... Bxf3?? { (-0.92 → 1.75) Blunder. Re8+ was best. } (11... Re8+ 12. Be3) 12. Qxf3 Bxg5?? { (1.65 → 4.25) Blunder. N8d7 was best. } (12... N8d7) 13. hxg5 g6?! { (3.78 → 5.30) Inaccuracy. h6 was best. } (13... h6 14. gxh6 g6 15. Qf4 N8d7 16. Qxd6 Re8+ 17. Kf1 Re6 18. Qg3 Qf6 19. c5 Nd5 20. Nxd5) 14. Ne4 Re8?! { (4.38 → 6.71) Inaccuracy. N8d7 was best. } (14... N8d7 15. Qh3 h5 16. g4 d5 17. gxh5 Kg7 18. cxd5 Nxd5 19. O-O-O Qc7 20. Kb1 Rh8 21. Qf3) 15. O-O? { (6.71 → 3.61) Mistake. Rxh7 was best. } (15. Rxh7 Rxe4+ 16. Bxe4 Qe7 17. Rh4 N8d7 18. Qh3 Qxg5 19. Rh8+ Kg7 20. Qh7+ Kf6 21. Rxa8 Nxa8) 15... Kg7 16. Kh2?? { (4.17 → 1.05) Blunder. Rae1 was best. } (16. Rae1) 16... Re6?! { (1.05 → 2.13) Inaccuracy. d5 was best. } (16... d5 17. cxd5) 17. Rh1?! { (2.13 → 1.23) Inaccuracy. Qh3 was best. } (17. Qh3 d5) 17... N8d7 18. Kg1 d5 19. Rxh7+?? { (1.64 → 0.00) Blunder. cxd5 was best. } (19. cxd5 cxd5) 19... Kxh7 20. Qxf7+ Kh8 21. Qxe6 dxe4 22. Bxe4 Qxg5?? { (-0.07 → 2.44) Blunder. Nf8 was best. } (22... Nf8 23. Qe5+) 23. c5 Nf8 24. Qh3+ Kg7 25. cxb6 axb6 26. Qc3 Qf6 27. d5 Qxc3 28. bxc3 Re8?! { (1.96 → 2.72) Inaccuracy. cxd5 was best. } (28... cxd5 29. Bxd5 Nd7 30. Re1 Nc5 31. Rb1 Rd8 32. c4 Ra8 33. Rxb6 Rxa2 34. Rb5 Nd3 35. Rxb7+) 29. Bf3 Nd7 30. dxc6 Ne5 31. cxb7 Nxf3+ 32. gxf3 Rb8 33. Rb1 Rxb7?! { (2.41 → 3.14) Inaccuracy. Rxb7 was best. } (33... Rxb7) 34. a4?! { (3.14 → 1.92) Inaccuracy. Rb4 was best. } (34. Rb4) 34... Ra7?! { (1.92 → 3.08) Inaccuracy. Rc7 was best. } (34... Rc7 35. Rxb6 Rxc3 36. Kg2 g5 37. Rb4 Kf6 38. Kg3 Kf5 39. Rb5+ Kg6 40. Rb2 Ra3 41. Rb4) 35. Rxb6 Rxa4 36. Rb7+?! { (2.63 → 1.85) Inaccuracy. Rb4 was best. } (36. Rb4 Ra1+ 37. Kg2 Rc1 38. Rc4 Kf6 39. f4 Ke6 40. Kf3 Kf5 41. Rc5+ Ke6 42. Rc6+ Kd7) 36... Kf6 37. Kg2? { (2.25 → 0.82) Mistake. Rb6+ was best. } (37. Rb6+) 37... Rc4 38. Rb6+ Kg5 39. Rb5+ Kh6 40. Rb3 g5 41. Kg3 Kh5 42. Ra3 Kg6 43. Ra6+?! { (0.77 → 0.20) Inaccuracy. Kg2 was best. } (43. Kg2 Kf5 44. Kf1 Ke5 45. Rb3 Ke6 46. Ke2 Kd6 47. Ra3 Ke6 48. Kd3 Rf4 49. Ra6+ Ke7) 43... Kh5 44. Ra8?! { (0.57 → 0.00) Inaccuracy. Ra3 was best. } (44. Ra3 Kg6 45. Kg2 Kf5 46. Kf1 Ke5 47. Ke1 Kd6 48. Ke2 Ke7 49. Kd2 Rf4 50. Ke3 Rc4) 44... Rxc3 45. Rh8+ Kg6 46. Kg4 Kf6 47. Rh6+ Ke5 48. Rh5 Kf6 49. Rxg5 Rc4+ 50. Kh5 Rf4 51. Rg3 Rf5+ 52. Kh6 Rf4 53. Rg6+ Kf5 54. Rg5+ Kf6 55. Rg8?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Rg6+ was best. } (55. Rg6+ Kf5 56. Rg8 Rxf3 57. Rf8+ Ke4 58. Rxf3 Kxf3 59. Kg5 Kxf2 60. Kf4 Ke2 61. Ke5 Ke3) 55... Kf5?? { (Mate in 1 → 0.00) Lost forced checkmate sequence. Rh4# was best. } (55... Rh4#) 56. Rf8+ Ke5 57. Re8+ Kf5 58. Re3 Kf6 59. Kh5 Kf5 60. Ra3 Kf6 61. Ra6+ Kf5 62. Ra5+ Kf6 63. Ra8 Kf7 64. Ra3 Kf6 65. Ra6+ Kf5 66. Rg6 Rxf3 67. Rg3 Rxf2 68. Kh4 Kf4 69. Rg4+ Kf3 70. Rg3+ Kf4 71. Rh3 Rg2 72. Kh5 Rg5+ 73. Kh6 Rg4 74. Rh5 Rg1 75. Ra5 Kf3 { Black offers draw } 76. Ra3+ Kf4 77. Ra4+ Kf5 78. Ra5+ Kf6 79. Ra6+ Kf7 80. Ra7+ Kf6 81. Ra6+ Kf7 82. Ra5 Kf6 83. Rb5 Rh1+ 84. Rh5 Rxh5+ 85. Kxh5 { The game is a draw. } 1/2-1/2
Computer analysisMove timesCrosstableFEN & PGN
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