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Puzzles (3 cohencoins award for each match):

Puzzle Ddxrr: 350

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/wbxpNvTY"] [Date "2025.06.24"] [White "DeSMoNd"] [Black "Walker"] [Result "0-1"] [UTCDate "2025.06.24"] [UTCTime "20:26:44"] [WhiteElo "1113"] [BlackElo "1363"] [WhiteRatingDiff "-61"] [BlackRatingDiff "+3"] [BlackTitle "⚡"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C20"] [Opening "King's Pawn Game: King's Head Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. f3 e5 2. e4 { C20 King's Pawn Game: King's Head Opening } Nf6 3. d3 Nc6 4. b3?! { (-1.47 → -2.50) Inaccuracy. c4 was best. } (4. c4 Bc5 5. Nc3 a6 6. Nge2 d6 7. a3 O-O 8. g4 b5 9. h4 Be6 10. Nd5 Nd4) 4... Bc5 5. a4? { (-2.05 → -3.39) Mistake. Nc3 was best. } (5. Nc3 a5) 5... d6?! { (-3.39 → -2.50) Inaccuracy. d5 was best. } (5... d5 6. Ba3 Qe7 7. g3 Be6 8. Bh3 Bxh3 9. Nxh3 O-O-O 10. Nf2 h5 11. c3 dxe4 12. Bxc5) 6. h4 O-O 7. Nh3? { (-2.89 → -5.03) Mistake. g4 was best. } (7. g4 Nxg4) 7... Bb4+?? { (-5.03 → -0.48) Blunder. Nh5 was best. } (7... Nh5) 8. Ke2?? { (-0.48 → -8.14) Blunder. c3 was best. } (8. c3 Bc5) 8... Nd4+?? { (-8.14 → -2.77) Blunder. Nh5 was best. } (8... Nh5 9. Rh2) 9. Kf2 Ng4+?! { (-2.55 → -1.62) Inaccuracy. Bc5 was best. } (9... Bc5 10. b4 Bb6 11. a5 Nxc2+ 12. axb6 Nxa1 13. Bb2 axb6 14. Na3 Nh5 15. g3 b5 16. Qxa1) 10. Kg3? { (-1.62 → -3.50) Mistake. fxg4 was best. } (10. fxg4 Qxh4+ 11. g3 Bxg4 12. gxh4 Bxd1 13. Bd2 Bc5 14. b4 Nxc2+ 15. bxc5 Nxa1 16. Nc3 Bg4) 10... Ne3?? { (-3.50 → 4.54) Blunder. f5 was best. } (10... f5 11. fxg4) 11. Qe1?? { (4.54 → Mate in 7) Checkmate is now unavoidable. Bxe3 was best. } (11. Bxe3) 11... Nxf1+?? { (Mate in 7 → -6.36) Lost forced checkmate sequence. Bxe1+ was best. } (11... Bxe1+ 12. Nf2 Nxf1+ 13. Rxf1 Ne2+ 14. Kh2 Qxh4+ 15. Nh3 Bxh3 16. gxh3 Qg3+ 17. Kh1 Qxh3#) 12. Qxf1 Qf6?? { (-6.02 → -2.08) Blunder. Nxc2 was best. } (12... Nxc2 13. Ra2 Nd4 14. f4 exf4+ 15. Nxf4 d5 16. Nxd5 Bd6+ 17. Bf4 c6 18. Bxd6 Qxd6+ 19. Nf4) 13. c3?? { (-2.08 → -4.57) Blunder. Qd1 was best. } (13. Qd1 Be6) 13... Bxc3?? { (-4.57 → 3.55) Blunder. Nxb3 was best. } (13... Nxb3) 14. Nxc3 Qg6+ 15. Kf2 Nc2?! { (3.81 → 5.64) Inaccuracy. f5 was best. } (15... f5) 16. Nd5 Qe6 17. Ndf4?? { (5.87 → -2.77) Blunder. Ra2 was best. } (17. Ra2 c6) 17... Qh6?? { (-2.77 → 5.87) Blunder. Qxb3 was best. } (17... Qxb3 18. Bd2) 18. Ne6?? { (5.87 → -4.03) Blunder. Ra2 was best. } (18. Ra2) 18... Qxe6 19. Nf4? { (-4.08 → -8.91) Mistake. Rb1 was best. } (19. Rb1 Nd4) 19... Qh6?? { (-8.91 → 1.21) Blunder. exf4 was best. } (19... exf4 20. Bxf4) 20. Ne6?? { (1.21 → -9.28) Blunder. Nd5 was best. } (20. Nd5 Qe6 21. Ra2 c6 22. Nc7 Qe7 23. Nxa8 Nb4 24. Rb2 Be6 25. Bd2 Na6 26. b4 Rxa8) 20... Bxe6?? { (-9.28 → 5.15) Blunder. Qxe6 was best. } (20... Qxe6 21. Ra2 Nb4 22. Bd2 Na6 23. Rc2 Qe7 24. b4 c5 25. d4 h6 26. b5 Nc7 27. Bxh6) 21. d4?? { (5.15 → -9.13) Blunder. Bxh6 was best. } (21. Bxh6) 21... Qg6 22. f4 exf4 23. Kf3?! { (-11.80 → Mate in 4) Checkmate is now unavoidable. Qd3 was best. } (23. Qd3 Nxa1 24. d5 Qg3+ 25. Qxg3 fxg3+ 26. Kxg3 Bd7 27. Bf4 Nxb3 28. e5 dxe5 29. Bxe5 Rac8) 23... Nxa1?! { (Mate in 4 → -14.62) Lost forced checkmate sequence. Qg3+ was best. } (23... Qg3+ 24. Ke2 Nxd4+ 25. Kd2 Qe3+ 26. Kd1 Bxb3#) 24. Kxf4 Qg4+ 25. Ke3 Qg3+ 26. Ke2 Bg4+ 27. Kd2 Qf4+?? { (-22.07 → 1.06) Blunder. Nxb3+ was best. } (27... Nxb3+ 28. Kc2 Nxd4+ 29. Kb1 Qb3+ 30. Bb2 Qc2+ 31. Ka1 Qxa4+ 32. Kb1 Qc2+ 33. Ka1 Be6 34. Rh3) 28. Kd3?? { (1.06 → -12.48) Blunder. Qxf4 was best. } (28. Qxf4 Nxb3+) 28... Qxf1+ 29. Rxf1 Nxb3 30. e5 dxe5 31. dxe5 Nxc1+ 32. Rxc1 Rad8+ 33. Kc2 Rd5 34. e6 Rc5+ 35. Kd2 Rxc1 36. exf7+ Rxf7 37. Kxc1 g5 38. Kc2 gxh4 39. Kc3 h3 40. Kc4?! { (-71.25 → Mate in 5) Checkmate is now unavoidable. gxh3 was best. } (40. gxh3 Rf3+ 41. Kd4 Rxh3 42. Ke5 Ra3 43. Kf6 h5 44. Ke7 h4 45. Kd8 h3 46. Kxc7 h2) 40... h2 41. Kc5 h1=Q 42. g3 Qc1+ 43. Kd5 Qd1+ 44. Ke5 Rf5+ 45. Ke6 Qd6# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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