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Puzzles (3 cohencoins award for each match):

Puzzle rygkk: 661

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/Hn3rOZ0l"] [Date "2026.04.03"] [White "Scarlet"] [Black "Bohdan"] [Result "0-1"] [UTCDate "2026.04.03"] [UTCTime "20:45:11"] [WhiteElo "1312"] [BlackElo "1580"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+5"] [BlackTitle "🐍"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C48"] [Opening "Four Knights Game: Spanish Variation, Classical Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bc5 { C48 Four Knights Game: Spanish Variation, Classical Variation } 5. h3?! { (0.46 → -0.29) Inaccuracy. O-O was best. } (5. O-O O-O) 5... a6?! { (-0.29 → 0.50) Inaccuracy. Nd4 was best. } (5... Nd4 6. Nxe5) 6. Ba4 O-O 7. d3 Rb8 8. Bg5 b5 9. Bb3 Nd4?? { (-0.10 → 2.30) Blunder. h6 was best. } (9... h6 10. Bxf6 Qxf6 11. Nd5 Qd8 12. c3 Ba7 13. O-O d6 14. d4 exd4 15. cxd4 Ne7 16. Qe2) 10. Nxe5 Qe7?? { (1.75 → 4.57) Blunder. Nxb3 was best. } (10... Nxb3 11. axb3 h6 12. Bh4 Bb7 13. Ng4 Be7 14. Nxf6+ Bxf6 15. Bxf6 Qxf6 16. O-O b4 17. Na4) 11. Ng4 d6? { (4.34 → 9.00) Mistake. Bb7 was best. } (11... Bb7 12. Ne2) 12. O-O?? { (9.00 → 1.98) Blunder. Nxf6+ was best. } (12. Nxf6+ gxf6 13. Nd5 fxg5 14. Nxe7+ Kg7 15. h4 g4 16. Bd5 c6 17. Nxc6 Nxc6 18. Bxc6 f5) 12... Bxg4 13. hxg4 h6?? { (1.82 → 6.79) Blunder. c6 was best. } (13... c6 14. Ne2 Ne6 15. Bh4 g5 16. Bxe6 fxe6 17. Bxg5 Qg7 18. Qd2 Nxg4 19. d4 Bb6 20. f3) 14. Bh4?? { (6.79 → 1.05) Blunder. Nd5 was best. } (14. Nd5 Nxd5 15. Bxe7 Nxe7 16. c3 Nxb3 17. axb3 Bxf2+ 18. Rxf2 b4 19. cxb4 Rb6 20. b5 axb5) 14... g5 15. Bg3?! { (1.14 → 0.47) Inaccuracy. Bg3 was best. } (15. Bg3 a5 16. a4 bxa4 17. Rxa4 Nxb3 18. cxb3 Rb4 19. Rxa5 Rfb8 20. Ra4 Bd4 21. Ne2 Bxb2) 15... Nh7?? { (0.47 → 5.18) Blunder. a5 was best. } (15... a5 16. e5 dxe5 17. Nd5 Nxd5 18. Bxd5 c6 19. Be4 f5 20. gxf5 Nxf5 21. Bxf5 Rxf5 22. c3) 16. f4?? { (5.18 → -6.38) Blunder. Nd5 was best. } (16. Nd5 Qd7 17. c3 Nxb3 18. axb3 c6 19. d4 Bxd4 20. Qxd4 cxd5 21. Rxa6 dxe4 22. Qxe4 Rfe8) 16... Qf6?? { (-6.38 → 2.45) Blunder. Nxb3+ was best. } (16... Nxb3+ 17. Bf2 Nxa1 18. Nd5 Qd7 19. Qxa1 c6 20. Ne3 Bxe3 21. Bxe3 Qxg4 22. fxg5 hxg5 23. Rf5) 17. fxg5?? { (2.45 → 0.18) Blunder. Kh1 was best. } (17. Kh1 gxf4) 17... Qxg5?! { (0.18 → 1.15) Inaccuracy. Ne2+ was best. } (17... Ne2+ 18. Kh2 Bg1+ 19. Rxg1 hxg5 20. Qe1 Qh6+ 21. Bh4 Nxg1 22. Nd5 gxh4 23. Qxg1 c5 24. Rf1) 18. Qe1?? { (1.15 → -7.84) Blunder. Kh1 was best. } (18. Kh1 h5 19. Nd5 c6 20. c3 Nxb3 21. Rf5 Qd8 22. Qxb3 cxd5 23. Qxd5 b4 24. Raf1 bxc3) 18... Nxc2+ 19. Qf2 Bxf2+ 20. Bxf2 Nxa1 21. Rxa1 Nf6 22. Nd5 Nxg4 23. Nxc7 Rbc8 24. Nxa6?! { (-12.46 → Mate in 4) Checkmate is now unavoidable. Bd1 was best. } (24. Bd1 Nxf2) 24... Qh5?! { (Mate in 4 → -12.37) Lost forced checkmate sequence. Rc1+ was best. } (24... Rc1+ 25. Bd1 Qd2 26. g3 Qxf2+ 27. Kh1 Qh2#) 25. Bg3 Ne3 26. Nb4 Qe2 27. Bf2 Qxb2 28. Re1 Ng4 29. Bh4 Qd4+ 30. Kf1 Nh2+ 31. Ke2 Ng4 32. Nc2 Rxc2+ 33. Bxc2 Qe3+ 34. Kf1?! { (-10.46 → Mate in 1) Checkmate is now unavoidable. Kd1 was best. } (34. Kd1 Qd4) 34... Nh2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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