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Puzzles (3 cohencoins award for each match):

Puzzle JHJ7z: 438

FEN
[Event "MrCohenOS Arena"] [Site "https://cohenchessclub.com/sSj7W16M"] [Date "2025.12.27"] [White "Vladimir"] [Black "Christian1"] [Result "0-1"] [UTCDate "2025.12.27"] [UTCTime "18:49:00"] [WhiteElo "1367"] [BlackElo "1754"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+1"] [WhiteTitle "GM🐧"] [BlackTitle "NM🐍"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Three Knights Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4?! { (0.18 → 0.88) Inaccuracy. Nf6 was best. } { C46 Three Knights Opening } (3... Nf6 4. Bb5 Nd4 5. Nxd4 exd4 6. e5 dxc3 7. exf6 Qxf6 8. dxc3 Qe5+ 9. Qe2 Qxe2+ 10. Kxe2) 4. Bd3 Nf6 5. O-O O-O 6. a3?! { (0.62 → -0.03) Inaccuracy. Nd5 was best. } (6. Nd5 Re8 7. c3 Bf8 8. Bc2 d6 9. d4 h6 10. Re1 exd4 11. Nxf6+ Qxf6 12. Nxd4 Nxd4) 6... Bxc3 7. bxc3? { (0.16 → -0.97) Mistake. dxc3 was best. } (7. dxc3) 7... d5 8. exd5 Qxd5 9. Bb2?? { (-1.01 → -4.70) Blunder. c4 was best. } (9. c4 Qc5) 9... e4 10. Ne1?! { (-4.85 → -7.90) Inaccuracy. c4 was best. } (10. c4 Qf5 11. Bxf6 gxf6 12. Nh4 Qg5 13. Bxe4 Qxh4 14. Bxc6 bxc6 15. Qf3 Bd7 16. Rae1 Rae8) 10... exd3 11. Nxd3 Qd6 12. Nf4 Qxf4 13. c4 Ng4 14. g3 Qxc4 15. d3 Qd5 16. a4 Nf6 17. Qd2 Bh3 18. Rfe1?! { (-11.27 → Mate in 1) Checkmate is now unavoidable. f3 was best. } (18. f3 Bxf1) 18... Qg2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting