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Puzzles (3 cohencoins award for each match):

Puzzle 3I5Ow: 579

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/D1A4oFOJ"] [Date "2025.12.30"] [White "Yunu"] [Black "Almas"] [Result "0-1"] [UTCDate "2025.12.30"] [UTCTime "00:10:34"] [WhiteElo "1321"] [BlackElo "1024"] [WhiteRatingDiff "-296"] [BlackRatingDiff "+27"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Four Knights Game: Italian Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 { C46 Four Knights Game: Italian Variation } d6? { (0.05 → 1.49) Mistake. Nxe4 was best. } (4... Nxe4 5. Nxe4) 5. O-O?! { (1.49 → 0.54) Inaccuracy. Ng5 was best. } (5. Ng5) 5... Bd7?? { (0.54 → 2.66) Blunder. Bg4 was best. } (5... Bg4 6. h3 Bxf3 7. Qxf3 Nd4 8. Qd1 c6 9. a4 Be7 10. d3 Ne6 11. Ne2 O-O 12. Ba2) 6. d3?? { (2.66 → 0.50) Blunder. Ng5 was best. } (6. Ng5 d5 7. exd5 Nd4 8. d6 Ne6 9. dxc7 Qxc7 10. d3 Bc5 11. Bxe6 fxe6 12. Nce4 Nxe4) 6... Be7 7. Bg5 O-O 8. Bxf6 Bxf6 9. Rb1?! { (0.00 → -0.70) Inaccuracy. Nd5 was best. } (9. Nd5 Na5 10. Bb3 Nxb3 11. axb3 Re8 12. Qd2 a6 13. Qb4 Rb8 14. Qc3 Rc8 15. Qb4) 9... Qc8 10. b4 b6? { (-0.27 → 0.78) Mistake. Ne7 was best. } (10... Ne7 11. b5 c6 12. h3 Qc7 13. Qd2 Rfd8 14. a4 Ng6 15. Ba2 Rac8 16. Bb3 Nf4 17. bxc6) 11. g3?? { (0.78 → -1.71) Blunder. Nd5 was best. } (11. Nd5 Bd8 12. Ne3 Nd4 13. b5 a6 14. a4 Ne6 15. Bd5 Ra7 16. Re1 axb5 17. axb5 h6) 11... a6?? { (-1.71 → 0.16) Blunder. Bg4 was best. } (11... Bg4 12. h3 Bxh3 13. Bd5 Bxf1 14. Qxf1 Ne7 15. Bxa8 Qxa8 16. Nd1 g6 17. c4 Qc8 18. a4) 12. h4?? { (0.16 → -2.68) Blunder. Nd5 was best. } (12. Nd5 Bd8 13. a4 Rb8 14. b5 Na5 15. Ba2 c6 16. bxc6 Nxc6 17. c3 b5 18. axb5 axb5) 12... g6?? { (-2.68 → 0.15) Blunder. Bg4 was best. } (12... Bg4 13. Nd5) 13. a3?! { (0.15 → -0.64) Inaccuracy. a4 was best. } (13. a4 Ne7 14. b5 Be6 15. Bxe6 Qxe6 16. Ra1 Bg7 17. Qb1 d5 18. Kg2 axb5 19. axb5 h6) 13... h6?! { (-0.64 → 0.04) Inaccuracy. Ne7 was best. } (13... Ne7 14. Qd2 c6 15. Bb3 a5 16. bxa5 Rxa5 17. Rfe1 Qc7 18. a4 Bg7 19. Nd1 Kh8 20. Ne3) 14. Kh2?! { (0.04 → -0.74) Inaccuracy. Nd5 was best. } (14. Nd5 Bg7) 14... Rb8?! { (-0.74 → 0.08) Inaccuracy. b5 was best. } (14... b5 15. Bd5) 15. g4?? { (0.08 → -3.68) Blunder. a4 was best. } (15. a4) 15... h5?? { (-3.68 → -1.00) Blunder. Bxg4 was best. } (15... Bxg4 16. Nd5) 16. gxh5 gxh5?? { (-0.90 → 3.35) Blunder. Kg7 was best. } (16... Kg7 17. Nd5 Qd8 18. b5 axb5 19. Bxb5 Bxh4 20. Kg2 Rh8 21. Bxc6 Bxc6 22. hxg6 Qd7 23. Rh1) 17. Kh1?? { (3.35 → 0.72) Blunder. Nd5 was best. } (17. Nd5) 17... Bh3?? { (0.72 → 5.23) Blunder. Bg4 was best. } (17... Bg4) 18. Re1?? { (5.23 → 0.62) Blunder. Rg1+ was best. } (18. Rg1+ Bg4 19. Nh2 Kh7 20. Nxg4 hxg4 21. Bxa6 Qe6 22. Bc4 Qd7 23. Nd5 Bd8 24. Bb5 Rg8) 18... Qg4?? { (0.62 → 6.47) Blunder. Bg4 was best. } (18... Bg4 19. Nd5) 19. Re2?? { (6.47 → Mate in 1) Checkmate is now unavoidable. Rg1 was best. } (19. Rg1 Bg7 20. Rxg4 Bxg4 21. Qe2 b5 22. Bb3 Kh8 23. Qe3 f5 24. exf5 Nd4 25. Nh2 Rxf5) 19... Qg2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting