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Puzzles (3 cohencoins award for each match):

Puzzle IXWp6: 818

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/Kx5tuqu7"] [Date "2026.02.18"] [White "Alexander9"] [Black "LuNa"] [Result "1-0"] [UTCDate "2026.02.18"] [UTCTime "21:04:46"] [WhiteElo "944"] [BlackElo "845"] [WhiteRatingDiff "+11"] [BlackRatingDiff "-13"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C42"] [Opening "Russian Game"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nf6 3. Nxe5 { C42 Russian Game } Qe7 4. d3?? { (0.89 → -3.54) Blunder. d4 was best. } (4. d4 Nc6) 4... Nxe4?? { (-3.54 → 1.12) Blunder. Qxe5 was best. } (4... Qxe5 5. Be2 c6 6. f4 Qa5+ 7. Bd2 Qd8 8. Nc3 Be7 9. e5 Nd5 10. Ne4 d6 11. c4) 5. dxe4 Qxe5 6. Nc3 Qh5?? { (0.80 → 13.09) Blunder. Bb4 was best. } (6... Bb4 7. Bd2) 7. f3?? { (13.09 → 1.64) Blunder. Qxh5 was best. } (7. Qxh5 Bd6 8. Nb5 O-O 9. Nxd6 cxd6 10. Bf4 g6 11. Qd5 Nc6 12. Bxd6 Re8 13. Bc4 Re6) 7... g6?? { (1.64 → 8.30) Blunder. Bd6 was best. } (7... Bd6 8. Be3 Nc6 9. a3 Be5 10. Qd2 Bxc3 11. Qxc3 Qe5 12. Qb3 d6 13. O-O-O O-O 14. h4) 8. g4?? { (8.30 → 0.75) Blunder. Nd5 was best. } (8. Nd5) 8... Qh4+ 9. Ke2 d5?? { (0.54 → 5.70) Blunder. Bg7 was best. } (9... Bg7 10. Bf4 Bxc3 11. bxc3 d6 12. Qd4 O-O 13. Qd2 f6 14. Bg3 Qg5 15. h4 Qxd2+ 16. Kxd2) 10. Qxd5? { (5.70 → 2.87) Mistake. Qd4 was best. } (10. Qd4 f6 11. Nxd5 Bd6 12. Qxf6 Qxf6 13. Nxf6+ Kf7 14. Nd5 Nc6 15. Bf4 Ne5 16. g5 Be6) 10... Be6?! { (2.87 → 4.25) Inaccuracy. Be7 was best. } (10... Be7 11. Qe5) 11. Qxb7 Bc4+?! { (3.79 → 6.01) Inaccuracy. Bc5 was best. } (11... Bc5 12. Be3 O-O 13. Bxc5 Bc4+ 14. Kd2 Rd8+ 15. Nd5 Bxd5 16. exd5 Nd7 17. Bxa7 Nb6 18. Bxb6) 12. Ke3?? { (6.01 → -8.68) Blunder. Kd1 was best. } (12. Kd1) 12... Qg5+?? { (-8.68 → 7.95) Blunder. Bc5+ was best. } (12... Bc5+) 13. Kf2 Bc5+ 14. Kg2 Bxf1+ 15. Rxf1 Be3 16. Qxa8 O-O 17. Qxb8?? { (9.74 → -0.35) Blunder. Qxa7 was best. } (17. Qxa7 Bxc1 18. Raxc1 h5 19. h3 Qe5 20. Rcd1 c6 21. a3 f6 22. Rd3 Qe6 23. Qc5 hxg4) 17... Rxb8 18. f4?? { (-0.23 → -7.53) Blunder. h4 was best. } (18. h4 Qc5 19. Bxe3 Qxe3 20. Nd5 Qh6 21. Kg3 Qg7 22. b3 c6 23. Ne3 h5 24. Rad1 Qe5+) 18... Qxg4+ 19. Kh1 Qf3+?? { (-7.39 → 11.50) Blunder. Bd4 was best. } (19... Bd4 20. Be3) 20. Rxf3 Bxc1 21. Rxc1 Re8 22. Nd1 Rxe4 23. Nc3 Re8 24. Rd3 g5 25. fxg5 h5 26. Rh3 Re7 27. Rxh5 { White wins on time. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting