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Puzzles (3 cohencoins award for each match):

Puzzle OeELd: 354

Puzzle tkbtq: 719

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/wpoIuacy"] [Date "2025.10.15"] [White "Ioana"] [Black "Graysen"] [Result "0-1"] [UTCDate "2025.10.15"] [UTCTime "20:14:13"] [WhiteElo "837"] [BlackElo "1439"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+1"] [BlackTitle "🏯"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C24"] [Opening "Bishop's Opening: Berlin Defense, Greco Gambit"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Bc4?! { (0.60 → -0.05) Inaccuracy. Nf3 was best. } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Nf6 3. f4? { (-0.03 → -1.11) Mistake. Nc3 was best. } { C24 Bishop's Opening: Berlin Defense, Greco Gambit } (3. Nc3 Bc5 4. Nf3 d6 5. Na4 Nxe4 6. Nxc5 Nxc5 7. d4 exd4 8. Bg5 Qd7 9. Qe2+ Ne6) 3... Bd6?? { (-1.11 → 3.78) Blunder. Nxe4 was best. } (3... Nxe4 4. d3 d5 5. Bb5+ c6 6. dxe4 Qa5+ 7. Bd2 Qxb5 8. Nc3 Qc5 9. Nf3 d4 10. Ne2) 4. Nf3?? { (3.78 → 1.54) Blunder. fxe5 was best. } (4. fxe5 Bxe5) 4... Qe7?? { (1.54 → 4.00) Blunder. Be7 was best. } (4... Be7 5. fxe5 Nxe4 6. Bd5 Ng5 7. d4 O-O 8. O-O Ne6 9. Bb3 d6 10. exd6 Bxd6 11. Nc3) 5. O-O?? { (4.00 → 1.66) Blunder. fxe5 was best. } (5. fxe5 Bxe5) 5... exf4?? { (1.66 → 5.52) Blunder. Bc5+ was best. } (5... Bc5+ 6. Kh1 d6 7. fxe5 dxe5 8. d4 exd4 9. c3 d3 10. b4 Bb6 11. e5 Ne4 12. Qxd3) 6. g3?? { (5.52 → -1.11) Blunder. e5 was best. } (6. e5) 6... fxg3 7. hxg3?? { (-0.73 → -2.66) Blunder. e5 was best. } (7. e5 gxh2+) 7... Qxe4?? { (-2.66 → 6.34) Blunder. Bxg3 was best. } (7... Bxg3 8. e5) 8. d3?? { (6.34 → -3.48) Blunder. Re1 was best. } (8. Re1 Qe7) 8... Qc6?? { (-3.48 → 1.90) Blunder. Qg4 was best. } (8... Qg4 9. Qe2+ Kf8 10. Nc3 Nc6 11. Qg2 Bc5+ 12. Kh1 d6 13. Bg5 Qh5+ 14. Qh2 Qxh2+ 15. Nxh2) 9. d4?? { (1.90 → -6.76) Blunder. Qe2+ was best. } (9. Qe2+) 9... Qxc4 10. b3 Qe6?? { (-7.24 → -1.23) Blunder. Qa6 was best. } (10... Qa6) 11. Nh4?? { (-1.23 → -8.00) Blunder. Re1 was best. } (11. Re1 O-O 12. Rxe6 dxe6 13. Bf4 Bxf4 14. gxf4 b6 15. Ne5 Bb7 16. c4 Nc6 17. Qf3 Nxe5) 11... Qh3 12. Re1+ Be7 13. c4 Qxg3+ 14. Kf1 O-O 15. d5 Qxh4 16. Rxe7 Qh1+ 17. Ke2 Qh5+ 18. Ke3 Qxd1 19. Na3 Ng4+ 20. Kf4 h5 21. Kg5?! { (-26.50 → Mate in 5) Checkmate is now unavoidable. Nb5 was best. } (21. Nb5 Qf1+) 21... d6?! { (Mate in 5 → -36.98) Lost forced checkmate sequence. Ne5 was best. } (21... Ne5 22. Kf4 Qf3+ 23. Kxe5 d6+ 24. Kd4 c5+ 25. dxc6 Nxc6#) 22. c5?! { (-36.98 → Mate in 3) Checkmate is now unavoidable. Be3 was best. } (22. Be3 Qxa1) 22... dxc5?! { (Mate in 3 → -75.49) Lost forced checkmate sequence. Ne5 was best. } (22... Ne5 23. Kf4 Qf3+ 24. Kg5 Qg4#) 23. b4?! { (-75.49 → Mate in 3) Checkmate is now unavoidable. Be3 was best. } (23. Be3 Qxa1) 23... cxb4?! { (Mate in 3 → -40.58) Lost forced checkmate sequence. Ne5 was best. } (23... Ne5 24. Kf4 Qf3+ 25. Kxe5 Qf5#) 24. Nc2?! { (-40.58 → Mate in 5) Checkmate is now unavoidable. Be3 was best. } (24. Be3 Qxa1 25. Kf4 Qf6+ 26. Ke4 Qxe7+ 27. Kd3 Qe5 28. Nb5 Qxd5+ 29. Kc2 Qxa2+ 30. Kd1 Qd5+) 24... Qxc2 25. d6 cxd6 26. a4 bxa3 27. Rxa3 Nc6 28. Rg3 Qxc1+ 29. Kxh5 Nf6+ 30. Kh4 Nxe7 31. Rxg7+ Kxg7 32. Kg3 Ne4+ 33. Kh2 Qc2+ 34. Kg1 Qc1+ 35. Kg2 Bh3+ 36. Kxh3 Nf2+ 37. Kh4 Nf5+ 38. Kh5 Qh6# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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