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Puzzles (3 cohencoins award for each match):

Puzzle kn713: 999999999

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/dYQQlpeR"] [Date "2025.10.08"] [White "Harry2"] [Black "Junhee"] [Result "0-1"] [UTCDate "2025.10.08"] [UTCTime "23:25:53"] [WhiteElo "1571"] [BlackElo "1714"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+6"] [WhiteTitle "GM🏆"] [BlackTitle "GM⏳"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C44"] [Opening "Scotch Game: Scotch Gambit"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 { C44 Scotch Game: Scotch Gambit } h6? { (-0.22 → 0.80) Mistake. Nf6 was best. } (4... Nf6 5. e5 d5 6. Bb5 Nd7 7. O-O Be7 8. Bxc6 bxc6 9. Nxd4 Nxe5 10. Bf4 c5 11. Bxe5) 5. c3?! { (0.80 → 0.28) Inaccuracy. Nxd4 was best. } (5. Nxd4 Nf6 6. Nc3 Be7 7. Nxc6 dxc6 8. Qxd8+ Bxd8 9. f3 O-O 10. a4 a5 11. Be3 Be7) 5... dxc3 6. Nxc3 d6 7. Qd5?? { (0.51 → -1.50) Blunder. b4 was best. } (7. b4 Bg4 8. Qb3 Qd7 9. Be3 Nf6 10. h3 Bxf3 11. gxf3 g6 12. O-O-O Bg7 13. f4 O-O) 7... Be6 8. Qd3?? { (-1.25 → -4.36) Blunder. Qb5 was best. } (8. Qb5) 8... Bxc4?? { (-4.36 → -0.62) Blunder. Nb4 was best. } (8... Nb4 9. Qe2) 9. Qxc4 Qe7?! { (-0.48 → 0.43) Inaccuracy. g6 was best. } (9... g6 10. Bf4 Bg7 11. Rd1 Bxc3+ 12. Qxc3 Qf6 13. Qe3 g5 14. Bg3 Nge7 15. e5 dxe5 16. Nxe5) 10. O-O O-O-O? { (0.28 → 1.40) Mistake. Qd7 was best. } (10... Qd7 11. Be3) 11. Nd5 Qe6?! { (1.12 → 2.18) Inaccuracy. Qd7 was best. } (11... Qd7 12. Be3) 12. b4 Nce7?? { (2.88 → Mate in 1) Checkmate is now unavoidable. Nf6 was best. } (12... Nf6 13. b5) 13. b5?? { (Mate in 1 → 5.42) Lost forced checkmate sequence. Qxc7# was best. } (13. Qxc7#) 13... Nxd5 14. exd5 Qd7 15. Qa4?! { (6.25 → 4.52) Inaccuracy. Be3 was best. } (15. Be3 Nf6) 15... Kb8?! { (4.52 → 6.64) Inaccuracy. a6 was best. } (15... a6 16. Rb1) 16. Be3?! { (6.64 → 4.37) Inaccuracy. Nd4 was best. } (16. Nd4) 16... a6? { (4.37 → 7.55) Mistake. b6 was best. } (16... b6 17. Nd4 a5 18. Nc6+ Kb7 19. Nxd8+ Qxd8 20. Rac1 Be7 21. Rc6 Qd7 22. Bd4 Nf6 23. Rfc1) 17. Nd4 Qg4 18. Nc6+ bxc6 19. Qxg4 cxb5 20. a4 Nf6 21. Qd4 bxa4?! { (11.61 → Mate in 8) Checkmate is now unavoidable. Kc8 was best. } (21... Kc8 22. Rfc1) 22. Qa7+ Kc8 23. Qxa6+ Kd7 24. Qc6+?! { (Mate in 9 → 16.81) Lost forced checkmate sequence. Qxa4+ was best. } (24. Qxa4+ Ke7 25. Rae1 Ne4 26. Qxe4+ Kf6 27. Bd4+ Kg5 28. h4+ Kh5 29. Qf5+ g5 30. Qxf7+ Kxh4) 24... Ke7 25. Qxc7+ Rd7 26. Qc4 g6?! { (13.87 → Mate in 6) Checkmate is now unavoidable. Ke8 was best. } { Black wins on time. } (26... Ke8 27. Rfe1) 0-1
Computer analysisMove timesCrosstableFEN & PGN
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