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Puzzles (3 cohencoins award for each match):

Puzzle 7nH8b: 666

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/fBNCnNI3"] [Date "2025.08.09"] [White "Daniel6"] [Black "Liam7"] [Result "0-1"] [UTCDate "2025.08.09"] [UTCTime "17:42:01"] [WhiteElo "1315"] [BlackElo "1256"] [WhiteRatingDiff "-94"] [BlackRatingDiff "+18"] [WhiteTitle "NM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Van't Kruijs Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e3 { A00 Van't Kruijs Opening } d5 2. Nf3 Nc6?! { (0.14 → 0.69) Inaccuracy. Nf6 was best. } (2... Nf6 3. c4 e6 4. b3 c5 5. cxd5 exd5 6. Bb2 Nc6 7. Bb5 Bd6 8. O-O O-O 9. d4) 3. Na3?? { (0.69 → -0.89) Blunder. d4 was best. } (3. d4 Bg4 4. Bb5 Qd7 5. Nbd2 a6 6. Be2 f5 7. h3 Bh5 8. a3 Nf6 9. b4 e6) 3... e5 4. b3?! { (-0.76 → -1.51) Inaccuracy. d4 was best. } (4. d4 Bg4) 4... Bg4?! { (-1.51 → -0.82) Inaccuracy. h5 was best. } (4... h5 5. c4) 5. Nb1?? { (-0.82 → -3.16) Blunder. h3 was best. } (5. h3 Bxf3 6. Qxf3 e4 7. Qd1 h5 8. Bb2 a6 9. d4 Qg5 10. c3 Nf6 11. Nb1 Bd6) 5... Qf6? { (-3.16 → -1.56) Mistake. e4 was best. } (5... e4 6. h3) 6. h3? { (-1.56 → -3.07) Mistake. Bb2 was best. } (6. Bb2 O-O-O 7. h3 Bf5 8. d4 exd4 9. Nxd4 Nxd4 10. Bxd4 Qg6 11. Nc3 Ne7 12. Qd2 Nc6) 6... Bxf3?? { (-3.07 → -0.56) Blunder. e4 was best. } (6... e4 7. d4 Qh6 8. hxg4 Qxh1 9. Ne5 h5 10. Bb2 hxg4 11. Qxg4 Nxe5 12. dxe5 c6 13. Nd2) 7. gxf3?? { (-0.56 → -2.32) Blunder. Qxf3 was best. } (7. Qxf3 Qe6) 7... e4?! { (-2.32 → -1.70) Inaccuracy. d4 was best. } (7... d4 8. Bb2 O-O-O 9. Bd3 Nge7 10. Qe2 Nb4 11. Be4 Qe6 12. h4 f5 13. a3 d3 14. Bxd3) 8. fxe4?? { (-1.70 → -5.21) Blunder. Nc3 was best. } (8. Nc3 Ne5) 8... Qxa1 9. Ba3?! { (-5.16 → -7.30) Inaccuracy. exd5 was best. } (9. exd5 Nb4) 9... dxe4 10. Bb2 Qxb2 11. Bg2 Nf6 12. Nc3 O-O-O 13. O-O Bb4 14. Bxe4 Nxe4 15. Nxe4 Rhe8 16. Qg4+ Kb8 17. Ng3 Rxd2 18. Kh2 Qxc2 19. h4 Rxf2+ 20. Rxf2 Qxf2+ 21. Kh3 Qf1+?? { (-17.39 → -0.84) Blunder. g6 was best. } (21... g6) 22. Nxf1 g6 23. e4 Ne5 24. Qg3 Bf8?! { (-1.50 → -0.94) Inaccuracy. h5 was best. } (24... h5 25. Ne3 Bd6 26. Qg5 a6 27. Kg2 c6 28. Qf6 Bc7 29. Kf1 Re6 30. Qg7 Bb6 31. Nc4) 25. b4? { (-0.94 → -2.09) Mistake. Ne3 was best. } (25. Ne3 a6 26. Qg5 h6 27. Qf6 Bd6 28. Qf1 Re6 29. Kg2 Be7 30. Nc4 Nxc4 31. bxc4 Rxe4) 25... Bxb4 26. a4 f5? { (-2.20 → -0.67) Mistake. Re6 was best. } (26... Re6 27. Ne3 h5 28. Kg2 a5 29. Nd5 Bd6 30. Qb3 Ng4 31. Qf3 f6 32. Nf4 Bxf4) 27. Ne3?? { (-0.67 → -4.15) Blunder. exf5 was best. } (27. exf5 Bd6) 27... fxe4 28. Nd5 Bd6 29. a5?! { (-4.33 → -6.92) Inaccuracy. Kg2 was best. } (29. Kg2 a6) 29... c5?? { (-6.92 → 0.00) Blunder. Nd3 was best. } (29... Nd3) 30. Nf6?! { (0.00 → -0.79) Inaccuracy. a6 was best. } (30. a6 Rf8 31. Kg2 Rf3 32. Qg5 Kc8 33. axb7+ Kxb7 34. Qd8 Kc6 35. Nf6 Rxf6 36. Qxf6 Kd5) 30... Rc8? { (-0.79 → 0.53) Mistake. Rf8 was best. } (30... Rf8 31. Nd7+ Nxd7 32. Qxd6+ Kc8 33. a6 bxa6 34. Qc6+ Kd8 35. Qxe4 Kc7 36. h5 gxh5 37. Qxh7) 31. Nxh7?? { (0.53 → -4.62) Blunder. Nxe4 was best. } (31. Nxe4 Kc7 32. Qb3 Rd8 33. Kg2 Nc6 34. a6 bxa6 35. Nf6 Be7 36. Nd5+ Rxd5 37. Qxd5 Bxh4) 31... c4 32. Qxg6? { (-5.02 → -16.77) Mistake. Qc3 was best. } (32. Qc3 e3) 32... Nxg6 33. h5 Nf4+ 34. Kg4 Nd5 35. Kg5 Rf8 36. Nxf8 Bxf8 37. Kg6 e3 38. Kf7 Bh6 39. Kg6 Bf4 40. Kf5 e2 41. Ke4 e1=Q+ 42. Kxd5 Qxa5+ 43. Kxc4 Qxh5 44. Kd3 Qe5 45. Kc4 b5+ 46. Kb4 Bd2+ 47. Ka3 Qc3+ 48. Ka2 Bc1 49. Kb1 Qb2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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