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Puzzles (3 cohencoins award for each match):

Puzzle syQMO: 299

Avani (865?) +24
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/qVtsrrOA"] [Date "2026.02.25"] [White "Avani"] [Black "Ioana"] [Result "1-0"] [UTCDate "2026.02.25"] [UTCTime "21:11:06"] [WhiteElo "865"] [BlackElo "808"] [WhiteRatingDiff "+24"] [BlackRatingDiff "-10"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C20"] [Opening "King's Pawn Game: Wayward Queen Attack"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Qh5? { (0.60 → -0.42) Mistake. Nf3 was best. } { C20 King's Pawn Game: Wayward Queen Attack } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Bc5?? { (-0.42 → 3.43) Blunder. Nc6 was best. } (2... Nc6 3. Bc4 g6 4. Qf3 Nf6 5. Ne2 Bg7 6. Nbc3 O-O 7. O-O d6 8. d3 Nd4 9. Nxd4) 3. Qxe5+ Kf8?? { (3.62 → 9.75) Blunder. Be7 was best. } (3... Be7 4. Qxg7) 4. Qxc5+ Ke8 5. Qe5+ Kf8 6. Bc4 f6 7. Qf4 Ne7 8. h4 g5? { (9.24 → Mate in 2) Checkmate is now unavoidable. d5 was best. } (8... d5 9. exd5) 9. Qf3?! { (Mate in 2 → 12.53) Lost forced checkmate sequence. Qxf6+ was best. } (9. Qxf6+ Ke8 10. Qf7#) 9... gxh4?! { (12.53 → Mate in 2) Checkmate is now unavoidable. Ke8 was best. } (9... Ke8 10. hxg5) 10. Rxh4?! { (Mate in 2 → 10.96) Lost forced checkmate sequence. Qxf6+ was best. } (10. Qxf6+ Ke8 11. Qf7#) 10... h6?! { (10.96 → Mate in 2) Checkmate is now unavoidable. Ng6 was best. } (10... Ng6 11. Qh5 Nc6 12. Qxg6 hxg6 13. Rxh8+ Kg7 14. Rxd8 Nxd8 15. Nc3 c6 16. a4 Ne6 17. Nge2) 11. Qh3? { (Mate in 2 → 9.37) Lost forced checkmate sequence. Qxf6+ was best. } (11. Qxf6+ Ke8 12. Qf7#) 11... h5 12. Rxh5 Rxh5 13. Qxh5 f5?! { (13.46 → Mate in 1) Checkmate is now unavoidable. d5 was best. } (13... d5 14. Qh8+ Ng8 15. Bxd5 c6 16. Bb3 Qd7 17. Qxg8+ Ke7 18. Qf7+ Kd6 19. Qxf6+ Kc7 20. Qf7) 14. exf5?! { (Mate in 1 → 12.74) Lost forced checkmate sequence. Qf7# was best. } (14. Qf7#) 14... Nxf5?! { (12.74 → Mate in 1) Checkmate is now unavoidable. d5 was best. } (14... d5 15. d4) 15. Qxf5+?! { (Mate in 1 → 20.92) Lost forced checkmate sequence. Qf7# was best. } (15. Qf7#) 15... Ke8?! { (20.92 → Mate in 1) Checkmate is now unavoidable. Kg7 was best. } (15... Kg7 16. Qf7+) 16. Bf7+?! { (Mate in 1 → 19.41) Lost forced checkmate sequence. Qf7# was best. } (16. Qf7#) 16... Kf8 17. d4 Qh4 18. Bh6+?! { (Mate in 5 → 12.06) Lost forced checkmate sequence. Bg6+ was best. } (18. Bg6+ Ke7 19. Qe5+ Kf8 20. Qe8+ Kg7 21. Qf7+ Kh8 22. Qf8#) 18... Ke7?! { (12.06 → Mate in 6) Checkmate is now unavoidable. Qxh6 was best. } (18... Qxh6 19. Nc3) 19. Be3?! { (Mate in 6 → 12.96) Lost forced checkmate sequence. Bg6 was best. } (19. Bg6 Qf6 20. Bg5 Qxg5 21. Qxg5+ Kf8 22. Qf6+ Kg8 23. Qf7+ Kh8 24. Qh7#) 19... Kd6?! { (12.96 → Mate in 1) Checkmate is now unavoidable. Qf6 was best. } (19... Qf6 20. Bg5) 20. Bf4+?! { (Mate in 1 → 19.56) Lost forced checkmate sequence. Qc5# was best. } (20. Qc5#) 20... Ke7 21. a4 d6 22. Qxc8 Na6 23. Qxa8 b6?! { (17.69 → Mate in 7) Checkmate is now unavoidable. Kxf7 was best. } (23... Kxf7 24. g3) 24. Bc4?! { (Mate in 7 → 20.95) Lost forced checkmate sequence. Qe8+ was best. } (24. Qe8+ Kf6 25. Bd5 Qxf4 26. Qf7+ Kg5 27. Nh3+ Kh6 28. Nxf4 Kg5 29. Qg6+ Kxf4 30. g3#) 24... Nc5 25. Ra3 b5?! { (21.75 → Mate in 5) Checkmate is now unavoidable. Qxf4 was best. } (25... Qxf4 26. Ne2) 26. Re3+ Kf6 27. Bg5+ Kxg5 28. Bxb5?! { (Mate in 5 → 23.97) Lost forced checkmate sequence. Qg8+ was best. } (28. Qg8+ Kh6 29. Bf7 Nd3+ 30. cxd3 Qe4 31. Rxe4 a5 32. Qg6#) 28... Nb7?! { (23.97 → Mate in 5) Checkmate is now unavoidable. Qe4 was best. } (28... Qe4 29. Qxe4) 29. Qxb7?! { (Mate in 5 → 75.69) Lost forced checkmate sequence. Nf3+ was best. } (29. Nf3+ Kf5 30. Nxh4+ Kg4 31. Qg8+ Kh5 32. Qg6+ Kxh4 33. Re4#) 29... c6?! { (75.69 → Mate in 4) Checkmate is now unavoidable. Qh7 was best. } (29... Qh7 30. Nh3+) 30. Qg7+ Kf5 31. Rf3+ Ke4 32. Bd3+ Kd5 33. Rf5+ Ke6 34. Qf8 Kd7 35. Rf7+ Ke6 36. Bf5+ Kd5 37. Nc3+ Kxd4 38. Bg6 c5 39. Nb5+ Kd5 40. Rf5+ Ke4 41. Rf7+ Kd5 42. Qxd6+ Kc4 43. Rf4+ Qxf4 44. Qxf4+ Kd5 45. Bf7+ Kc6 46. Nd4+ Kd7 47. Qf5+ Kd8 48. Ngf3 Kc7 49. Ne5 Kb8 50. Nd7+ Ka8 51. Bd5# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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