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Puzzles (3 cohencoins award for each match):

Puzzle PstoO: 999999999

GM😈 Kristofer (1740) +8
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/3SshHbk1"] [Date "2026.02.27"] [White "RoWaN"] [Black "Kristofer"] [Result "0-1"] [UTCDate "2026.02.27"] [UTCTime "21:43:46"] [WhiteElo "1701"] [BlackElo "1740"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+8"] [WhiteTitle "NM🎼"] [BlackTitle "GM😈"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B32"] [Opening "Sicilian Defense: Accelerated Dragon"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6?! { (0.44 → 0.98) Inaccuracy. Nf6 was best. } { B32 Sicilian Defense: Accelerated Dragon } (4... Nf6 5. Nc3) 5. Bc4? { (0.98 → -0.06) Mistake. c4 was best. } (5. c4 Nf6 6. Nc3 Bg7 7. Be3 Ng4 8. Qxg4 Nxd4 9. Qd1 e5 10. Bd3 d6 11. b3 Qa5) 5... Bg7 6. c3?! { (0.24 → -0.38) Inaccuracy. Be3 was best. } (6. Be3 Qa5+ 7. c3 Nf6 8. Nd2 O-O 9. O-O Ne5 10. Bb3 d5 11. exd5 Nxd5 12. Bg5 h6) 6... Nxd4?! { (-0.38 → 0.34) Inaccuracy. Nf6 was best. } (6... Nf6) 7. cxd4 d6 8. O-O a6 9. Nc3 Nf6?! { (1.43 → 2.04) Inaccuracy. b5 was best. } (9... b5 10. Bb3) 10. Re1?! { (2.04 → 1.07) Inaccuracy. e5 was best. } (10. e5) 10... O-O 11. Bf4?! { (1.35 → 0.51) Inaccuracy. Bb3 was best. } (11. Bb3 Bg4 12. f3 Bd7 13. Bg5 Ne8 14. Qd2 a5 15. e5 dxe5 16. dxe5 a4 17. Nd5 axb3) 11... Nd7 12. e5 dxe5 13. dxe5 Nb6 14. Bb3 Bf5? { (0.75 → 2.06) Mistake. Be6 was best. } (14... Be6 15. Qf3) 15. Nd5?? { (2.06 → 0.03) Blunder. Qf3 was best. } (15. Qf3 Be6 16. Qxb7 Nc4 17. Rad1 Qc8 18. Qe4 Rb8 19. Nd5 Bxd5 20. Qxd5 Nxb2 21. e6 fxe6) 15... e6? { (0.03 → 1.16) Mistake. Nxd5 was best. } (15... Nxd5 16. Bxd5 Qb6 17. Qb3 Qxb3 18. axb3 e6 19. Bf3 Rab8 20. Rec1 Bd3 21. h4 h6 22. Rc3) 16. Nxb6?! { (1.16 → 0.32) Inaccuracy. Nf6+ was best. } (16. Nf6+ Bxf6) 16... Qxb6 17. Rc1 Rfd8 18. Qf3 Rd3 19. Re3 Rad8?? { (0.02 → 5.62) Blunder. Rxe3 was best. } (19... Rxe3 20. Bxe3 Qb4 21. Bc5 Qe4 22. Qxe4 Bxe4 23. f4 Rc8 24. Be3 Rxc1+ 25. Bxc1 g5 26. g3) 20. h3?? { (5.62 → 0.71) Blunder. g4 was best. } (20. g4) 20... g5?? { (0.71 → 5.85) Blunder. Rxe3 was best. } (20... Rxe3 21. Bxe3) 21. Bxg5 Bg6?! { (5.75 → 8.55) Inaccuracy. Rxe3 was best. } (21... Rxe3 22. Bxd8 Qxb3 23. fxe3 Qxb2 24. Rc8 Qb1+ 25. Qf1 h5 26. Bf6+ Kh7 27. Qxb1 Bxb1 28. Bxg7) 22. Bxd8 Qxd8 23. Rxd3 Qxd3 24. Rd1 Qxf3 25. Rd8+ Bf8 26. gxf3 Kg7 27. Kg2 Bc5 28. a3 Kh6 29. f4 Kh5 30. Kg3 Bf5 31. Rg8 Kh6 32. Bd1 Bd4 33. b4 Bg6 34. Rc8 Kg7 35. Bc2 Bh5 36. Be4 b6 37. Ra8 Be2 38. Bf3 Bb5 39. Bd1 Bc4 40. Rc8 Bd5 41. Be2 a5 42. bxa5 bxa5 43. Bc4 Be4 44. Rd8 Bc5 45. a4 Kg6 46. Rc8 Bd4 47. f3 Bf5 48. Ra8 h5 49. Bf1 h4+ 50. Kxh4?? { (5.81 → Mate in 1) Checkmate is now unavoidable. Kg2 was best. } (50. Kg2 Be3) 50... Bf2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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