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Puzzles (3 cohencoins award for each match):

Puzzle f6lXz: 522

🌊 BENJAMIN4 (1644) +1
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/4uGOVjdH"] [Date "2025.07.23"] [White "BENJAMIN4"] [Black "Maria"] [Result "1-0"] [UTCDate "2025.07.23"] [UTCTime "20:13:18"] [WhiteElo "1644"] [BlackElo "1226"] [WhiteRatingDiff "+1"] [BlackRatingDiff "-2"] [WhiteTitle "🌊"] [BlackTitle "❦"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A48"] [Opening "London System"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nf6 2. Bf4 g6 3. Nf3 { A48 London System } Ng4?? { (0.14 → 2.00) Blunder. Bg7 was best. } (3... Bg7 4. e3 c5 5. c3 Qb6 6. Qc1 d6 7. h3 O-O 8. Be2 Be6 9. a4 Nc6 10. O-O) 4. e3?! { (2.00 → 1.26) Inaccuracy. e4 was best. } (4. e4 d6 5. Nc3 c6 6. Qd2 Bg7 7. h3 Nf6 8. Bh6 O-O 9. Bxg7 Kxg7 10. g4 b5) 4... Bg7 5. h3 Nf6 6. Bd3 Nd5?! { (0.90 → 1.53) Inaccuracy. d6 was best. } (6... d6 7. c4) 7. Bg3 O-O 8. c4 Nb4 9. Nc3?! { (1.79 → 1.05) Inaccuracy. Be2 was best. } (9. Be2 d6) 9... Nxd3+ 10. Qxd3 e6 11. O-O Nc6 12. Ne5?! { (1.21 → 0.67) Inaccuracy. e4 was best. } (12. e4 d6 13. Rad1 b6 14. e5 dxe5 15. Qe4 Bb7 16. dxe5 Qe8 17. Bh4 Na5 18. Qf4 Bxf3) 12... Nxe5? { (0.67 → 1.87) Mistake. Ne7 was best. } (12... Ne7) 13. Bxe5?! { (1.87 → 0.84) Inaccuracy. dxe5 was best. } (13. dxe5) 13... Bxe5?! { (0.84 → 1.37) Inaccuracy. f6 was best. } (13... f6 14. Bg3) 14. dxe5 f6 15. exf6?! { (1.54 → 0.90) Inaccuracy. f4 was best. } (15. f4) 15... Qxf6 16. Ne4? { (1.14 → -0.23) Mistake. a4 was best. } (16. a4 d6) 16... Qxb2 17. Qc3?? { (-0.15 → -3.03) Blunder. Rac1 was best. } (17. Rac1 b6) 17... Qxc3 18. Nxc3 d6?! { (-3.11 → -1.86) Inaccuracy. Rf5 was best. } (18... Rf5) 19. Rad1?? { (-1.86 → -4.29) Blunder. a4 was best. } (19. a4 a5 20. Nb5 Rf7 21. f4 b6 22. e4 Ba6 23. e5 dxe5 24. fxe5 Rxf1+ 25. Rxf1 Rd8) 19... Bd7?? { (-4.29 → -1.10) Blunder. Rf5 was best. } (19... Rf5 20. g4) 20. Nb5?? { (-1.10 → -3.16) Blunder. c5 was best. } (20. c5 d5) 20... c6?? { (-3.16 → 1.75) Blunder. a6 was best. } (20... a6 21. Nd4) 21. Nxd6 Rf6?? { (1.90 → 7.84) Blunder. b5 was best. } (21... b5) 22. Nxb7?! { (7.84 → 5.27) Inaccuracy. Ne4 was best. } (22. Ne4 Rf7) 22... Raf8?! { (5.27 → 8.38) Inaccuracy. Be8 was best. } (22... Be8) 23. Rxd7 R8f7 24. Rxf7 Rxf7 25. Nd6 Rf6 26. Ne4 Rf5 27. Nd6 Rc5 28. Rd1 Ra5 29. Nc8 Rxa2 30. Rd8+ Kf7 31. Nd6+ Ke7 32. Rh8?? { (7.53 → 0.00) Blunder. Nb7 was best. } (32. Nb7 a5 33. Rh8 a4 34. Rxh7+ Kf6 35. Nc5 a3 36. Ra7 g5 37. Ne4+ Kg6 38. Kh2 Ra1) 32... Kxd6?! { (0.00 → 0.79) Inaccuracy. Kxd6 was best. } (32... Kxd6 33. Rxh7 a5 34. h4 a4 35. Ra7 Kc5 36. g4 Kb4 37. h5 gxh5 38. gxh5 a3 39. Rb7+) 33. Rxh7?! { (0.79 → 0.00) Inaccuracy. Rxh7 was best. } (33. Rxh7 a5) 33... Ra4?? { (0.00 → 1.78) Blunder. a5 was best. } (33... a5 34. Ra7 Kc5 35. g4 a4 36. h4 Kb6 37. Ra8 Kb7 38. Ra5 Kb6) 34. Rh6 Rxc4 35. Rxg6 a5 36. Kf1?? { (1.55 → 0.00) Blunder. Rg8 was best. } (36. Rg8 c5) 36... a4 37. Rg8 a3 38. Ra8 Rc3?? { (1.10 → 3.68) Blunder. Rc1+ was best. } (38... Rc1+ 39. Ke2 Ra1 40. g4 a2 41. g5 Rg1 42. Rxa2 Rxg5 43. Rd2+ Ke7 44. h4 Rh5 45. Rd4) 39. Ke2?? { (3.68 → 1.02) Blunder. g4 was best. } (39. g4 Ke5) 39... Rc2+?? { (1.02 → 3.91) Blunder. Kc5 was best. } (39... Kc5 40. h4) 40. Kd3?? { (3.91 → 0.00) Blunder. Kf3 was best. } (40. Kf3) 40... Rxf2 41. Rxa3 Rxg2 42. h4 Rh2 43. Ra4 c5 44. e4 Rxh4?? { (-0.12 → 53.13) Blunder. Rh3+ was best. } (44... Rh3+ 45. Kd2 Ke5 46. Rc4 Rxh4 47. Rxc5+ Kd4 48. Ra5 Rh2+ 49. Kd1 Ke3 50. Ra3+ Kf4 51. Ra4) 45. e5+ Kxe5 46. Rxh4 Kd5 47. Kc3 e5 48. Kd3 e4+ 49. Rxe4 Kc6 50. Kc4 Kd6 51. Re1 Kc6 52. Rd1 Kb6 53. Rd5 Kc6 54. Rxc5+ Kd6 55. Kd4 Ke6 56. Rd5 Kf6 57. Re5 Kg6 58. Ke4 Kf6 59. Kf4 Kg6 60. Rf5 Kg7 61. Kg5 Kh7 62. Rf6 Kg7 63. Kf5 Kh7 64. Rg6 Kh8 65. Rg1 Kh7 66. Kf6 Kh6 67. Rh1# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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