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Puzzles (3 cohencoins award for each match):

Puzzle xFNIh: 823

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/wcWQYWHj"] [Date "2026.01.18"] [White "xavi"] [Black "Ellie2"] [Result "1-0"] [UTCDate "2026.01.18"] [UTCTime "18:04:14"] [WhiteElo "1775"] [BlackElo "1472"] [WhiteRatingDiff "+2"] [BlackRatingDiff "-4"] [WhiteTitle "GM🥉"] [BlackTitle "🪐"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B50"] [Opening "Sicilian Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Nf3 d6 3. d4 { B50 Sicilian Defense } b6?? { (0.48 → 2.91) Blunder. cxd4 was best. } (3... cxd4) 4. dxc5 bxc5?? { (2.87 → 8.00) Blunder. e6 was best. } (4... e6 5. cxd6 Qxd6 6. Qxd6 Bxd6 7. Nc3 Nc6 8. Be3 Bb4 9. Bb5 Ne7 10. Ne5 Bb7 11. O-O-O) 5. Bc4?? { (8.00 → 1.70) Blunder. Qd5 was best. } (5. Qd5 Bd7 6. Qxa8 a6 7. Nc3 Bc6 8. Qa7 Nf6 9. Bc4 Nxe4 10. Nxe4 Bxe4 11. Bxf7+ Kxf7) 5... Bb7?! { (1.70 → 2.57) Inaccuracy. e6 was best. } (5... e6 6. Nc3) 6. Nc3?! { (2.57 → 1.65) Inaccuracy. Ne5 was best. } (6. Ne5 e6) 6... h6?? { (1.65 → 8.42) Blunder. Nc6 was best. } (6... Nc6 7. Bf4) 7. O-O?? { (8.42 → 1.41) Blunder. Bxf7+ was best. } (7. Bxf7+ Kxf7 8. Ne5+ dxe5 9. Qxd8 Na6 10. Qd7 Rb8 11. Nb5 Nf6 12. Nd6+ Kg8 13. Qe6+ Kh7) 7... Nc6 8. Nd5?! { (1.95 → 1.35) Inaccuracy. Qe2 was best. } (8. Qe2 e5) 8... e6?! { (1.35 → 1.96) Inaccuracy. g6 was best. } (8... g6) 9. Nc3?? { (1.96 → 0.09) Blunder. b4 was best. } (9. b4 Be7) 9... Nf6 10. Bb5 a6 11. Ba4 g5? { (0.03 → 1.35) Mistake. Nd7 was best. } (11... Nd7) 12. Be3? { (1.35 → 0.14) Mistake. e5 was best. } (12. e5) 12... Qb6?? { (0.14 → 1.71) Blunder. Qc7 was best. } (12... Qc7 13. Nd5) 13. Rb1 O-O-O? { (1.35 → 2.76) Mistake. Qc7 was best. } (13... Qc7 14. b4 Nd7 15. bxc5 dxc5 16. Qe2 Bd6 17. Rfd1 O-O-O 18. Bxc6 Qxc6 19. Rb3 Bc7 20. Rdb1) 14. Nd2?? { (2.76 → 0.15) Blunder. b4 was best. } (14. b4 Qc7) 14... d5 15. exd5?! { (-0.14 → -1.12) Inaccuracy. Qf3 was best. } (15. Qf3 Be7 16. exd5 Nd4 17. Qd1 Nf5 18. Qe2 exd5 19. b4 d4 20. Nc4 Qc7 21. bxc5 Qxc5) 15... exd5 16. Nb3?? { (-1.09 → -4.67) Blunder. b4 was best. } (16. b4 Nxb4) 16... d4 17. Bxd4? { (-4.12 → -8.52) Mistake. Qd3 was best. } (17. Qd3) 17... cxd4 18. Ne2 Bg7 19. Qd3 Nh5?? { (-5.83 → -0.58) Blunder. Nd7 was best. } (19... Nd7) 20. Qh3+ f5?! { (-0.93 → -0.39) Inaccuracy. Kb8 was best. } (20... Kb8 21. Qxh5 Ne5 22. Nbc1 Be4 23. Nd3 Nxd3 24. cxd3 Bxd3 25. Rbc1 Qa5 26. Qxf7 Qxa4 27. Qxg7) 21. Qxh5 f4?? { (-0.61 → 1.89) Blunder. Ne5 was best. } (21... Ne5 22. Rbd1 Qb4 23. Nexd4 Qxa4 24. Nc5 Qa5 25. Nde6 Rxd1 26. Rxd1 Bf6 27. Qh3 g4 28. Qe3) 22. Qg6 Be5?? { (1.87 → 6.23) Blunder. Qc7 was best. } (22... Qc7) 23. Bxc6?? { (6.23 → 1.32) Blunder. Qf5+ was best. } (23. Qf5+) 23... Bxc6?? { (1.32 → 7.17) Blunder. Qxc6 was best. } (23... Qxc6 24. Qxc6+ Bxc6 25. Rfd1 Bd5 26. Nexd4 g4 27. Re1 Rhe8 28. Nf5 f3 29. g3 h5 30. Rbd1) 24. Qe6+ Kc7 25. Qxe5+ Kc8 26. Qe6+ Kc7 27. Nexd4 Rhe8 28. Qxh6 g4 29. Qxf4+ Kc8 30. Nxc6 Qxc6 31. Qxg4+ Kc7 32. Qg7+ Rd7 33. Qg3+ Kc8 34. Rfe1 Rxe1+ 35. Rxe1 Qxc2 36. Re8+ Kb7 37. Qb8+ Kc6 38. Qa8+ Rb7 39. Nd4+ Kc5 40. Nxc2 Rxb2 41. Qd8 Rb1+ 42. Ne1 Kc4 43. Qc7+ Kd4 44. Qd6+ Kc4 45. Rc8+ Kb5 46. Qc5+ Ka4 47. Qc4+ Rb4 48. Qc2+ Ka3 49. Rc3+ Rb3 50. Qxb3# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting