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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/vAfDhkhl"] [Date "2026.03.21"] [White "Vladimir"] [Black "Landen"] [Result "1-0"] [UTCDate "2026.03.21"] [UTCTime "17:05:57"] [WhiteElo "1295"] [BlackElo "1500"] [WhiteRatingDiff "+6"] [BlackRatingDiff "-439"] [WhiteTitle "GM🐧"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Four Knights Game: Italian Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 { C46 Four Knights Game: Italian Variation } Bb4?! { (0.05 → 0.64) Inaccuracy. Nxe4 was best. } (4... Nxe4 5. Nxe4) 5. Ng5? { (0.64 → -0.78) Mistake. Nd5 was best. } (5. Nd5 Nxe4 6. O-O Nf6 7. Nxb4 Nxb4 8. Nxe5 O-O 9. d3 d6 10. Bd2 Nbd5 11. Nf3 Re8) 5... d6?? { (-0.78 → 6.53) Blunder. O-O was best. } (5... O-O) 6. Nxf7 Qd7 7. Nxh8 d5 8. exd5 Na5 9. a3 Bxc3 10. dxc3? { (6.77 → 3.43) Mistake. Ba2 was best. } (10. Ba2 Bd4 11. c3 Bb6 12. O-O Qb5 13. b4 Nc4 14. d3 Nd6 15. c4 Bg4 16. cxb5 Bxd1) 10... Nxc4 11. Bg5? { (3.29 → 1.63) Mistake. b3 was best. } (11. b3) 11... h6?? { (1.63 → 8.27) Blunder. Kf8 was best. } (11... Kf8 12. Qe2 Qg4 13. Qxg4 Bxg4 14. b3 Nd6 15. c4 Kg8 16. Bxf6 gxf6 17. c5 Nb5 18. f3) 12. Bxf6 gxf6 13. Qf3?? { (8.61 → 3.29) Blunder. Qh5+ was best. } (13. Qh5+ Kd8 14. Qxh6 Qe7 15. Ng6 Qf7 16. O-O-O Bg4 17. Qh8+ Kd7 18. Qxa8 Qxg6 19. Qxb7 Nd6) 13... Nxb2?? { (3.29 → 7.86) Blunder. Qf5 was best. } (13... Qf5 14. h4 h5 15. O-O-O Bd7 16. Rhe1 Qxf3 17. gxf3 Ke7 18. b3 Nd6 19. Ng6+ Kf7 20. Nxe5+) 14. Qxf6 Qxd5 15. Ng6 Qe4+ 16. Kd2 Nc4+ 17. Kc1 Bf5?! { (10.07 → Mate in 1) Checkmate is now unavoidable. Kd7 was best. } (17... Kd7 18. Rd1+ Nd6 19. Nxe5+ Ke8 20. g4 Bf5 21. gxf5 Qxf5 22. Rxd6 cxd6 23. Qxf5 dxe5 24. Rb1) 18. Qe7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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