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Puzzles (3 cohencoins award for each match):

Puzzle QMD0Y: 567

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/ztm7gLaR"] [Date "2025.07.16"] [White "Christian1"] [Black "Harry2"] [Result "1-0"] [UTCDate "2025.07.16"] [UTCTime "23:04:25"] [WhiteElo "1561"] [BlackElo "1629"] [WhiteRatingDiff "+9"] [BlackRatingDiff "-7"] [WhiteTitle "NM🐍"] [BlackTitle "GM🏆"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B72"] [Opening "Sicilian Defense: Dragon Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Nc3 d6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 g6?! { (0.49 → 1.08) Inaccuracy. a6 was best. } (5... a6 6. f3 e6 7. Be3 b5 8. a3 Bb7 9. Qd2 Nbd7 10. O-O-O h6 11. h4 d5 12. exd5) 6. Be3 { B72 Sicilian Defense: Dragon Variation } Bg7 7. Bb5+?! { (0.97 → 0.39) Inaccuracy. f3 was best. } (7. f3) 7... Nbd7 8. O-O O-O 9. h3 a6 10. Bc4 b5?! { (-0.27 → 0.72) Inaccuracy. Qc7 was best. } (10... Qc7 11. Bb3) 11. Bb3? { (0.72 → -0.60) Mistake. Nc6 was best. } (11. Nc6 Qe8) 11... Nc5?! { (-0.60 → 0.00) Inaccuracy. Bb7 was best. } (11... Bb7 12. f3) 12. Bd5? { (0.00 → -1.35) Mistake. Nc6 was best. } (12. Nc6 Qc7 13. e5 dxe5 14. Bxc5 Qxc6 15. Bxe7 Bb7 16. f3 Qb6+ 17. Kh1 Nh5 18. Ne4 Bxe4) 12... Nxd5 13. Nxd5 Bb7 14. Qf3?? { (-1.43 → -4.74) Blunder. f3 was best. } (14. f3 Na4 15. Rb1 Qd7 16. c3 e6 17. Nb4 Rfc8 18. Re1 a5 19. Nd3 e5 20. Nb3 Qc7) 14... Nxe4?? { (-4.74 → 1.65) Blunder. e6 was best. } (14... e6 15. Nb4 Qd7 16. Qe2 Nxe4 17. Rfd1 a5 18. Nd3 e5 19. Nb3 Qc6 20. f3 Nf6 21. Qe1) 15. Qxe4 e6?? { (1.74 → 5.55) Blunder. Kh8 was best. } (15... Kh8 16. Rad1 Re8 17. Nf3 e6 18. Ng5 Kg8 19. Qf4 f6 20. Nxe6 Rxe6 21. Bb6 Qd7 22. Nc7) 16. Nxe6?? { (5.55 → 0.68) Blunder. Nf6+ was best. } (16. Nf6+ Qxf6 17. Qxb7 Rfb8 18. Qf3 Qxf3 19. gxf3 b4 20. Rfd1 Rc8 21. Rac1 f5 22. c3 bxc3) 16... fxe6? { (0.68 → 2.25) Mistake. Qe8 was best. } (16... Qe8 17. Nxg7 Qxe4 18. Nf6+ Kxg7 19. Nxe4 Bxe4 20. c3 Rfe8 21. Rfd1 Re6 22. Rac1 g5 23. c4) 17. Qxe6+ Kh8?! { (2.05 → 2.70) Inaccuracy. Rf7 was best. } (17... Rf7 18. Nb6) 18. Qe4?? { (2.70 → -4.43) Blunder. c3 was best. } (18. c3 Rf5) 18... Re8?? { (-4.43 → 1.25) Blunder. Rf5 was best. } (18... Rf5 19. Rad1) 19. Qd3 Qa5?? { (1.42 → 6.13) Blunder. Bxd5 was best. } (19... Bxd5 20. Qxd5) 20. Bd4? { (6.13 → 3.18) Mistake. Bb6 was best. } (20. Bb6 Qa4) 20... Bxd4?? { (3.18 → 8.72) Blunder. Bxd5 was best. } (20... Bxd5 21. Bxg7+) 21. Qxd4+ Kg8 22. Nf6+ Kf8 23. Nxe8 Rxe8 24. Qf6+ Kg8 25. Qxd6 b4 26. Rfe1 Rd8 27. Qe6+ Kh8?! { (10.33 → Mate in 4) Checkmate is now unavoidable. Kg7 was best. } (27... Kg7 28. Qe7+) 28. Qf7? { (Mate in 4 → 9.27) Lost forced checkmate sequence. Qf6+ was best. } { Black resigns. } (28. Qf6+ Kg8 29. Re7 Rd1+ 30. Rxd1 Qxa2 31. Rd8#) 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting