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Puzzles (3 cohencoins award for each match):

Puzzle JonBn: 838

IM🧁 Sasha (1506) +11
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/atMhTnTM"] [Date "2026.03.15"] [White "Sasha"] [Black "Allen"] [Result "1-0"] [UTCDate "2026.03.15"] [UTCTime "17:32:13"] [WhiteElo "1506"] [BlackElo "1563"] [WhiteRatingDiff "+11"] [BlackRatingDiff "-19"] [WhiteTitle "IM🧁"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D02"] [Opening "Queen's Pawn Game: London System"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nf6 2. Nf3 d5 3. Bf4 { D02 Queen's Pawn Game: London System } Bf5 4. c3 e6 5. e3 c5 6. Bd3 Bxd3 7. Qxd3 Nc6 8. Nbd2 c4 9. Qe2 Bd6 10. Bxd6 Qxd6 11. O-O O-O 12. Rfe1 Rfe8 13. g3 a5?! { (-0.30 → 0.25) Inaccuracy. Qc7 was best. } (13... Qc7) 14. a4 h6 15. e4 b6?? { (0.17 → 8.22) Blunder. e5 was best. } (15... e5 16. exd5 exd4 17. Qxc4 dxc3 18. bxc3 Qxd5 19. Rxe8+ Rxe8 20. Rb1 Re7 21. Rb5 Qxc4 22. Nxc4) 16. e5 Qe7 17. exf6 Qxf6 18. Ne5 Ne7 19. Qf3 Nf5 20. g4 Nh4 21. Qxf6?! { (7.37 → 5.48) Inaccuracy. Qg3 was best. } (21. Qg3 Reb8) 21... gxf6 22. Nef3 Nxf3+ 23. Nxf3 e5?! { (4.79 → 7.45) Inaccuracy. b5 was best. } (23... b5 24. axb5 Reb8 25. Kg2 Rxb5 26. Re2 a4 27. h4 Rb3 28. h5 Kh7 29. Ng1 Kg7 30. Ra2) 24. dxe5 fxe5 25. Nxe5 f6 26. Ng6 Rec8 27. Ne7+ { Black resigns. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting