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Puzzles (3 cohencoins award for each match):

Puzzle OTh61: 999999999

IM Vincent3 (1291) +6
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/bZFqQGid"] [Date "2026.04.14"] [White "Blaze"] [Black "Vincent3"] [Result "0-1"] [UTCDate "2026.04.14"] [UTCTime "14:43:26"] [WhiteElo "1045"] [BlackElo "1291"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+6"] [BlackTitle "IM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Hungarian Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. g3 { A00 Hungarian Opening } e5 2. h4? { (0.26 → -1.09) Mistake. c4 was best. } (2. c4 Nf6) 2... Nf6 3. Bg2?! { (-0.72 → -1.25) Inaccuracy. c4 was best. } (3. c4 c6 4. Bg2 d5 5. cxd5 cxd5 6. d4 Bb4+ 7. Bd2 Bxd2+ 8. Qxd2 e4 9. Nh3 Nc6) 3... d5 4. b4? { (-1.07 → -2.71) Mistake. Nf3 was best. } (4. Nf3 Bd6 5. d3 O-O 6. Nc3 h6 7. O-O c6 8. Nh2 Be6 9. e4 Re8 10. f4 exf4) 4... Bxb4 5. Bb2 Qe7 6. c3 Bc5? { (-3.71 → -2.30) Mistake. Bd6 was best. } (6... Bd6 7. c4) 7. d4 exd4 8. cxd4 Bb4+ 9. Kf1?! { (-2.43 → -3.53) Inaccuracy. Nc3 was best. } (9. Nc3 c6 10. a3 Ba5 11. Qc2 O-O 12. Nf3 Nbd7 13. O-O Re8 14. Nd2 Bxc3 15. Qxc3 Qxe2) 9... Bg4?! { (-3.53 → -2.80) Inaccuracy. O-O was best. } (9... O-O) 10. f3 Ne4?? { (-3.32 → -0.34) Blunder. Bc8 was best. } (10... Bc8 11. Nc3) 11. fxe4 Qf6+ 12. Bf3?! { (-0.33 → -1.01) Inaccuracy. Nf3 was best. } (12. Nf3 dxe4 13. Qb3 exf3 14. exf3 Na6 15. a3 Be7 16. Nd2 Bd7 17. Nc4 Qc6 18. Rc1 Qb5) 12... Bxf3?? { (-1.01 → 3.83) Blunder. dxe4 was best. } (12... dxe4 13. Qb3 exf3 14. exf3 Na6 15. d5 Qf5 16. Kg2 Bh5 17. g4 Bxg4 18. Qe3+ Be7 19. fxg4) 13. Nxf3?? { (3.83 → -0.60) Blunder. exf3 was best. } (13. exf3 dxe4 14. Kg2 exf3+ 15. Nxf3 O-O 16. Qd3 Re8 17. a3 Bf8 18. Nc3 Nd7 19. Rhf1 Qc6) 13... Nc6?? { (-0.60 → 8.46) Blunder. dxe4 was best. } (13... dxe4 14. Qb3) 14. g4?? { (8.46 → -4.20) Blunder. exd5 was best. } (14. exd5 O-O 15. dxc6 Qxc6 16. Nbd2 Qe6 17. Qb3 Qxb3 18. axb3 f5 19. Rc1 Bd6 20. Nc4 b5) 14... g5?? { (-4.20 → 9.19) Blunder. dxe4 was best. } (14... dxe4) 15. hxg5 Qf4 16. Rh4?? { (9.08 → 0.00) Blunder. exd5 was best. } (16. exd5 Ne7) 16... Qxe4?? { (0.00 → 5.34) Blunder. dxe4 was best. } (16... dxe4 17. Nd2) 17. a3 Bd6 18. Bc3?? { (6.98 → 2.37) Blunder. Nc3 was best. } (18. Nc3) 18... Bg3 19. Nbd2?? { (2.37 → -5.85) Blunder. Rh6 was best. } (19. Rh6 O-O-O) 19... Qe3 20. Qc2?? { (-5.63 → Mate in 1) Checkmate is now unavoidable. Kg2 was best. } (20. Kg2 Bxh4 21. Nxh4 Qxc3 22. Nf5 O-O-O 23. Nb3 Rhe8 24. Rc1 Qb2 25. Kf2 Kb8 26. Nc5 Qxa3) 20... Qf2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting