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Puzzles (3 cohencoins award for each match):

Puzzle yAE6s: 571

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/481hIg7Y"] [Date "2025.10.05"] [White "Gideon"] [Black "Diego"] [Result "0-1"] [UTCDate "2025.10.05"] [UTCTime "17:16:04"] [WhiteElo "1363"] [BlackElo "1349"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+49"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B13"] [Opening "Caro-Kann Defense: Exchange Variation"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. e4 c6 2. d4 d5 3. exd5 { B13 Caro-Kann Defense: Exchange Variation } cxd5 4. Nf3 Bf5 5. Bb5+ Nc6 6. O-O Nf6 7. Re1 e6 8. Bg5?! { (0.50 → -0.20) Inaccuracy. c4 was best. } (8. c4) 8... Be7 9. Ne5 Qc7 10. Nxc6? { (0.26 → -1.08) Mistake. Bf4 was best. } (10. Bf4 Qb6 11. Nc3 O-O 12. Bxc6 bxc6 13. Na4 Qb5 14. c3 Ne4 15. f3 Nd6 16. Nc5 Nc4) 10... bxc6 11. Ba6?? { (-1.20 → -6.61) Blunder. Bd3 was best. } (11. Bd3 Bxd3 12. cxd3 Qb6 13. Qa4 O-O 14. Re2 h6 15. Bf4 Qb5 16. Qxb5 cxb5 17. Rc2 g5) 11... O-O?? { (-6.61 → -2.24) Blunder. Ng4 was best. } (11... Ng4 12. Bxe7) 12. Qf3 Qb6 13. Bd3 Qxb2 14. Nd2 Qxd4? { (-2.91 → -1.49) Mistake. Bxd3 was best. } (14... Bxd3 15. Qxd3) 15. Qg3?? { (-1.49 → -7.23) Blunder. Bxf5 was best. } (15. Bxf5 exf5 16. c3 Qc5 17. Qxf5 Qd6 18. Bf4 Qd8 19. Rab1 h6 20. g3 Bd6 21. Bxd6 Qxd6) 15... Qg4?! { (-7.23 → -4.58) Inaccuracy. Nh5 was best. } (15... Nh5 16. Bxe7 Nxg3 17. hxg3 Bxd3 18. Nb3 Qb6 19. Bxf8 Rxf8 20. Rec1 Be4 21. c4 Qb4 22. cxd5) 16. Bxf5?! { (-4.58 → -5.87) Inaccuracy. Qxg4 was best. } (16. Qxg4 Bxg4) 16... Qxf5 17. Bh6 Qg6 18. Bf4 Nh5 19. Qh4?! { (-5.56 → -13.22) Inaccuracy. Qxg6 was best. } (19. Qxg6) 19... Nxf4 20. Qxf4 Bg5 21. Qg4 Bxd2 22. Qe2 Bxe1 23. Qxe1 Qxc2 24. Rd1 Qxa2 25. Rd4 Qb2 26. Rg4 Qf6 27. Qe3?! { (-10.26 → Mate in 2) Checkmate is now unavoidable. g3 was best. } (27. g3 c5) 27... Qh6?? { (Mate in 2 → 7.73) Lost forced checkmate sequence. Qa1+ was best. } { Black wins on time. } (27... Qa1+ 28. Qc1 Qxc1#) 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting