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Puzzles (3 cohencoins award for each match):

Puzzle nuo0I: 800

Puzzle SNTpW: 999999999

IM🧁 Sasha (1491) +5
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/vcAIIhrK"] [Date "2026.02.01"] [White "Sasha"] [Black "Gideon"] [Result "1-0"] [UTCDate "2026.02.01"] [UTCTime "18:30:58"] [WhiteElo "1491"] [BlackElo "1269"] [WhiteRatingDiff "+5"] [BlackRatingDiff "-7"] [WhiteTitle "IM🧁"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D02"] [Opening "Queen's Pawn Game: Chigorin Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Nf3 Nc6 { D02 Queen's Pawn Game: Chigorin Variation } 3. Bf4 Nf6 4. e3 e6 5. c3 Bd6 6. Bxd6 cxd6 7. Nbd2 O-O 8. Bd3 e5 9. dxe5 dxe5 10. O-O?? { (-0.61 → -8.05) Blunder. e4 was best. } (10. e4 h6 11. O-O Be6 12. Re1 Rc8 13. exd5 Nxd5 14. Nc4 f6 15. Ne3 Nxe3 16. Rxe3 Ne7) 10... e4 11. Bxe4 dxe4 12. Nd4 Nxd4 13. exd4 Ng4 14. h3 Ne5?? { (-7.38 → 1.87) Blunder. Nf6 was best. } (14... Nf6 15. Qe2 Re8 16. f3 e3 17. Ne4 Bf5 18. Qxe3 Nxe4 19. fxe4 Rxe4 20. Rfe1 Rxe3 21. Rxe3) 15. Nxe4?? { (1.87 → -4.19) Blunder. dxe5 was best. } (15. dxe5 e3 16. Ne4 Qxd1 17. Rfxd1 exf2+ 18. Kxf2 Re8 19. Rd5 f6 20. Nd6 Rxe5 21. Rxe5 fxe5) 15... Nc4 16. Qb3?! { (-4.24 → -5.37) Inaccuracy. b3 was best. } (16. b3) 16... Na5 17. Qb5 b6 18. b4?! { (-3.66 → -4.70) Inaccuracy. Rfe1 was best. } (18. Rfe1 Bd7) 18... Nb7 19. Qh5 g6? { (-5.81 → -3.18) Mistake. Nd6 was best. } (19... Nd6 20. Rfe1 Nxe4 21. Rxe4 Bb7 22. Re3 a5 23. Qe5 Qd7 24. c4 Rfe8 25. Qg3 Rxe3 26. fxe3) 20. Qh6 Bf5?? { (-3.75 → 6.99) Blunder. f6 was best. } (20... f6 21. Qf4 Bf5 22. Ng3 Nd6 23. Rfc1 Rc8 24. c4 Nxc4 25. Nxf5 gxf5 26. Qxf5 Qxd4 27. Rd1) 21. Ng5 f6?? { (7.00 → Mate in 1) Checkmate is now unavoidable. Qxg5 was best. } (21... Qxg5 22. Qxg5 Rad8 23. Qf4 Nd6 24. Rfe1 h5 25. g4 hxg4 26. hxg4 Be4 27. f3 Bc6 28. Qe5) 22. Qxh7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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