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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/YZLOkdm8"] [Date "2025.11.21"] [White "Garyd"] [Black "David3"] [Result "1-0"] [UTCDate "2025.11.21"] [UTCTime "21:04:33"] [WhiteElo "1533"] [BlackElo "1531"] [WhiteRatingDiff "+7"] [BlackRatingDiff "-10"] [WhiteTitle "GM🙌"] [BlackTitle "IM🔱"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Queen's Pawn Game: Mason Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Bf4 { D00 Queen's Pawn Game: Mason Variation } c6 3. e3 Bf5 4. Nc3 e6 5. Nf3 Nf6 6. Bd3 Bd6 7. Bxd6 Qxd6 8. Bxf5 exf5 9. Ne5 O-O 10. Qf3 Nbd7? { (-0.24 → 1.25) Mistake. g6 was best. } (10... g6 11. Nd3 h5 12. Ne2 Qe7 13. Nef4 Re8 14. h4 a5 15. a4 Nbd7 16. Qd1 Ne4 17. g3) 11. Qxf5 Rfe8 12. Nxd7 Nxd7 13. Qf3?? { (1.67 → 0.10) Blunder. Qd3 was best. } (13. Qd3) 13... Nf6? { (0.10 → 1.14) Mistake. Qb4 was best. } (13... Qb4 14. O-O-O b5 15. Ne2 a5 16. Kb1 Qe7 17. h4 Nb6 18. Nf4 b4 19. h5 h6 20. Nd3) 14. O-O-O? { (1.14 → 0.10) Mistake. a3 was best. } (14. a3 Re6 15. Ne2 Ne4 16. Ng3 Rae8 17. Nxe4 dxe4 18. Qe2 Rg6 19. g3 Qd5 20. c4 Qa5+) 14... Ne4? { (0.10 → 1.44) Mistake. b5 was best. } (14... b5) 15. Rd3? { (1.44 → 0.12) Mistake. Nxe4 was best. } (15. Nxe4 Rxe4) 15... Re7 16. Qf4?? { (0.60 → -7.30) Blunder. Qe2 was best. } (16. Qe2 Qg6) 16... Qxf4 17. exf4 Nxf2 18. Rdd1 Nxh1 19. Rxh1 Rae8 20. Rd1 Re1 21. Kd2 R1e7 22. a4 a6 23. b3 b5 24. axb5 axb5 25. b4 Re6 26. g3 g6 27. Rf1 f6 28. Rd1 g5 29. f5 Re4?? { (-7.19 → 0.29) Blunder. Re3 was best. } (29... Re3 30. Rf1 h5 31. Rf2 Re1 32. Ne2 Rb1 33. h4 gxh4 34. gxh4 Rh1 35. Rg2+ Kf7 36. Nf4) 30. Nxe4 Rxe4 31. Kd3 Rg4?? { (0.30 → 4.95) Blunder. h5 was best. } (31... h5 32. Ra1 h4 33. Ra6 Rg4 34. Rxc6 hxg3 35. hxg3 Rxg3+ 36. Ke2 Rg4 37. c3 Rf4 38. Rxf6) 32. Re1?! { (4.95 → 3.78) Inaccuracy. Re1 was best. } (32. Re1 h5 33. Re3 h4 34. c3 hxg3 35. hxg3 Kf7 36. Ke2 Re4 37. Rxe4 dxe4 38. Ke3 Ke7) 32... Kf7? { (3.78 → 6.98) Mistake. h5 was best. } (32... h5 33. c3) 33. Re6?? { (6.98 → 0.99) Blunder. Re3 was best. } (33. Re3) 33... h6? { (0.99 → 2.48) Mistake. h5 was best. } (33... h5 34. Rxc6 h4 35. Rc7+ Ke8 36. gxh4 Rxh4 37. Rc5 Rxh2 38. Ke3 Kf8 39. Kf3 Ke7 40. Rxb5) 34. Rxc6 Ke7?? { (2.92 → 6.45) Blunder. h5 was best. } (34... h5 35. Rc5) 35. Rc5 Kd6 36. Rxb5 Kc6?! { (6.17 → 10.36) Inaccuracy. h5 was best. } (36... h5 37. Rb6+ Kc7 38. Rxf6 h4 39. gxh4 Rxh4 40. Rg6 Rh3+ 41. Kd2 Rxh2+ 42. Kc3 Rh3+ 43. Kb2) 37. Rc5+ Kd6 38. b5 Re4 39. b6 Re8 40. c4 dxc4+ 41. Kxc4 Kd7 42. Kb5 Rb8 43. d5 Kd6 44. Rc6+ Kxd5 45. Rxf6 Re8 46. b7 Rb8 47. Ka6 Kc5 48. Ka7 Rxb7+ 49. Kxb7 Kd5 50. Rxh6 Ke5 51. f6 Ke6 52. Rg6 Kf7 53. Rxg5 Kxf6 54. Rg8 Kf7 55. Rc8 Kg6 56. Rc7 Kg5 57. Rc4 Kh5 58. h3 Kg5 59. Rg4+ Kh5?! { (61.93 → Mate in 6) Checkmate is now unavoidable. Kh6 was best. } (59... Kh6 60. h4 Kh5 61. Rg5+ Kh6 62. g4 Kh7 63. h5 Kh6 64. Rg6+ Kh7 65. g5 Kh8 66. h6) 60. Rh4+?! { (Mate in 6 → 67.82) Lost forced checkmate sequence. Kc6 was best. } (60. Kc6 Kh6 61. Kd5 Kh5 62. Ke6 Kh6 63. Kf7 Kh5 64. Kf6 Kh6 65. Rh4#) 60... Kg5 61. Rh8 Kg6 62. g4 Kg5 63. Kc6 Kg6 64. Kd6 Kg5 65. Ke7 Kg6 66. Ke6 Kg5 67. Ke5 Kg6 68. h4 Kg7 69. Rd8 Kg6 70. h5+ Kg5 71. Rd6 Kxg4 72. h6 Kg5 73. h7 Kh5 74. h8=Q+ Kg4 75. Rf6 Kg5 76. Qg7+ Kh5 77. Rh6# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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