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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/7dLJCm1x"] [Date "2025.08.29"] [White "RoWaN"] [Black "Harry2"] [Result "0-1"] [UTCDate "2025.08.29"] [UTCTime "20:04:54"] [WhiteElo "1688"] [BlackElo "1594"] [WhiteRatingDiff "-13"] [BlackRatingDiff "+7"] [WhiteTitle "NM🎼"] [BlackTitle "GM🏆"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B50"] [Opening "Sicilian Defense: Modern Variations"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Nf3 d6 { B50 Sicilian Defense: Modern Variations } 3. Bc4?! { (0.53 → -0.08) Inaccuracy. d4 was best. } (3. d4 Nf6) 3... Nf6 4. Nc3 g6?! { (0.07 → 0.76) Inaccuracy. e6 was best. } (4... e6 5. d4 cxd4 6. Nxd4 a6 7. a4 Be7 8. O-O O-O 9. a5 d5 10. exd5 exd5 11. Bb3) 5. Ng5?! { (0.76 → 0.00) Inaccuracy. e5 was best. } (5. e5 dxe5 6. Nxe5 e6 7. Qf3 Bg7 8. Bb5+ Nbd7 9. Bxd7+ Bxd7 10. Qxb7 O-O 11. d3 Qc8) 5... e6 6. d4 Bg7?? { (-0.07 → 1.83) Blunder. cxd4 was best. } (6... cxd4 7. Qxd4) 7. d5?? { (1.83 → 0.05) Blunder. dxc5 was best. } (7. dxc5) 7... O-O?? { (0.05 → 5.44) Blunder. exd5 was best. } (7... exd5 8. Nxd5) 8. O-O?? { (5.44 → 0.22) Blunder. dxe6 was best. } (8. dxe6) 8... a6?? { (0.22 → 6.74) Blunder. exd5 was best. } (8... exd5 9. Nxd5) 9. dxe6 Bxe6 10. Bxe6 fxe6 11. Nxe6 Qe7 12. Nxf8 Qxf8 13. Nd5 Qf7 14. Nxf6+ Bxf6 15. Qf3 Nc6 16. c3 Ne5 17. Qe2 b5 18. Rd1 Rd8 19. f4 Nc4 20. b3 Bxc3 21. bxc4?? { (4.76 → 0.70) Blunder. Rb1 was best. } (21. Rb1 Na5 22. Qf3 Bd4+ 23. Kh1 Nc6 24. Be3 Qe6 25. f5 gxf5 26. exf5 Qxe3 27. Qxc6 Be5) 21... Bxa1 22. Bb2? { (0.57 → -0.90) Mistake. Be3 was best. } (22. Be3 Bg7 23. cxb5 axb5 24. Qxb5 Qxa2 25. e5 Qc2 26. Rd2 Qc1+ 27. Qf1 Qc3 28. Rd3 Qc2) 22... Bxb2 23. Qxb2 Qxc4 24. e5?? { (-1.24 → -5.68) Blunder. Qf6 was best. } (24. Qf6 Rd7) 24... Qe4?? { (-5.68 → -0.31) Blunder. Qxf4 was best. } (24... Qxf4 25. Qe2 Re8 26. e6 c4 27. g3 Qe5 28. Qxe5 dxe5 29. Rd6 Kg7 30. Rxa6 Rc8 31. e7) 25. Qb3+?? { (-0.31 → -2.77) Blunder. Qf2 was best. } (25. Qf2 Rd7) 25... c4 26. Qb4?! { (-2.45 → -3.80) Inaccuracy. Qh3 was best. } (26. Qh3 Qxf4) 26... Qc2? { (-3.80 → -1.95) Mistake. d5 was best. } (26... d5 27. h3 d4 28. Qe7 Rf8 29. Rf1 Qe3+ 30. Kh1 Rxf4 31. Rg1 Rf8 32. e6 c3 33. Qd7) 27. Rxd6?? { (-1.95 → -7.56) Blunder. Qe1 was best. } (27. Qe1 d5) 27... Qc1+ 28. Kf2 Qxf4+ 29. Ke2?! { (-6.30 → -74.86) Inaccuracy. Kg1 was best. } (29. Kg1 Qe3+ 30. Kf1 Rf8+ 31. Rf6 Rxf6+ 32. exf6 Qf4+ 33. Ke2 Qxf6 34. Qc5 Kf7 35. Kd2 Ke6) 29... Qxe5+ 30. Kf3 Rxd6 31. Qa5 Rd3+ 32. Kg4 Qe4+ 33. Kg5 Rd5+ 34. Kh6 Qh4# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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