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Puzzles (3 cohencoins award for each match):

Puzzle qa3aa: 685

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/wQ5EYS8e"] [Date "2026.05.06"] [White "Ioana"] [Black "Maria"] [Result "0-1"] [UTCDate "2026.05.06"] [UTCTime "20:37:27"] [WhiteElo "826"] [BlackElo "1160"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+3"] [BlackTitle "❦"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C42"] [Opening "Russian Game: Italian Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Bc4?! { (0.60 → -0.05) Inaccuracy. Nf3 was best. } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Nf6 3. Nf3?! { (-0.07 → -0.82) Inaccuracy. d3 was best. } { C42 Russian Game: Italian Variation } (3. d3 c6) 3... Bc5?? { (-0.82 → 1.80) Blunder. Nxe4 was best. } (3... Nxe4 4. Nc3 Nxc3 5. dxc3 f6 6. Nh4 g6 7. f4 Qe7 8. f5 Qg7 9. Be3 d6 10. a4) 4. O-O? { (1.80 → 0.28) Mistake. Nxe5 was best. } (4. Nxe5) 4... Nxe4 5. d3 Qe7?? { (0.19 → 7.45) Blunder. Nf6 was best. } (5... Nf6 6. Nxe5 O-O 7. d4 Bb6 8. a4 c6 9. c3 d6 10. Nf3 h6 11. Bd3 d5 12. Re1) 6. dxe4 Qf6 7. Nxe5?? { (9.22 → 1.96) Blunder. Bg5 was best. } (7. Bg5 Qd6) 7... Qxe5 8. Bf4?? { (1.82 → -6.83) Blunder. Nc3 was best. } (8. Nc3 O-O 9. Qf3 Bd6 10. Qh3 Bc5 11. Nd5 c6 12. Bf4 Qe6 13. Nc7 Qxc4 14. Nxa8 Na6) 8... Qxf4 9. g3 Qxe4?? { (-7.82 → 3.89) Blunder. Qe5 was best. } (9... Qe5 10. Nd2) 10. c3?? { (3.89 → -10.14) Blunder. Re1 was best. } (10. Re1 Qe7 11. Rxe7+ Bxe7 12. Nc3 O-O 13. Qh5 c6 14. Re1 d5 15. Rxe7 dxc4 16. a3 Be6) 10... Nc6?? { (-10.14 → 1.60) Blunder. Qxc4 was best. } (10... Qxc4 11. Re1+) 11. Nd2?? { (1.60 → -6.40) Blunder. Re1 was best. } (11. Re1 Qe7 12. Rxe7+ Bxe7 13. Nd2 O-O 14. Bb3 a5 15. a4 d6 16. Nc4 Bd7 17. Ne3 Rfe8) 11... Ne5?? { (-6.40 → 7.52) Blunder. Qf5 was best. } (11... Qf5) 12. Re1?? { (7.52 → -6.37) Blunder. Nxe4 was best. } (12. Nxe4 O-O) 12... Nf3+?? { (-6.37 → 9.34) Blunder. Qf5 was best. } (12... Qf5 13. Qf3) 13. Kg2?? { (9.34 → Mate in 5) Checkmate is now unavoidable. Nxf3 was best. } (13. Nxf3 Qe6) 13... Nxe1+ 14. Kf1 Nf3?? { (Mate in 2 → 6.88) Lost forced checkmate sequence. Qg2+ was best. } (14... Qg2+ 15. Kxe1 Qxf2#) 15. Nxf3?? { (6.88 → -12.07) Blunder. Nxe4 was best. } (15. Nxe4) 15... Qxc4+ 16. Ke1 Qe4+ 17. Kd2 Bxf2 18. Qb1 Qe3+ 19. Kc2 Qe2+ 20. Kc1?! { (-14.15 → Mate in 2) Checkmate is now unavoidable. Nd2 was best. } (20. Nd2 d6 21. Qd1 Bf5+ 22. Kc1 Qxd1+ 23. Kxd1 Kd7 24. Ke2 Bb6 25. Kf3 g5 26. Nc4 Be6) 20... Be3+ 21. Nd2 Qxd2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting