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Puzzles (3 cohencoins award for each match):

Puzzle IFqUk: 975

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/apbRxijj"] [Date "2025.12.30"] [White "Mateo1"] [Black "Anthony"] [Result "0-1"] [UTCDate "2025.12.30"] [UTCTime "15:40:20"] [WhiteElo "980"] [BlackElo "1139"] [WhiteRatingDiff "-25"] [BlackRatingDiff "+25"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A02"] [Opening "Bird Opening"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. f4 { A02 Bird Opening } Nc6 2. Nh3? { (0.10 → -1.34) Mistake. Nf3 was best. } (2. Nf3) 2... Nf6?! { (-1.34 → -0.56) Inaccuracy. d5 was best. } (2... d5 3. g3 h5 4. Nf2 Nf6 5. d4 Bf5 6. c3 h4 7. Bg2 Qd7 8. Nd2 O-O-O 9. b4) 3. g3?! { (-0.56 → -1.11) Inaccuracy. Nf2 was best. } (3. Nf2 d5 4. d4 Bf5 5. e3 e6 6. a3 h5 7. c4 Ng4 8. Nc3 Nxf2 9. Kxf2 Ne7) 3... e6 4. Bg2 d5 5. O-O a6?! { (-1.43 → -0.41) Inaccuracy. h5 was best. } (5... h5 6. d4 h4 7. g4 Nxg4 8. e4 Nh6 9. c3 dxe4 10. Bxe4 Ne7 11. Nd2 Nef5 12. Nf3) 6. Qe1? { (-0.41 → -1.50) Mistake. d4 was best. } (6. d4 Ne7 7. Nd2 Nf5 8. Nf3 c5 9. e3 Bd7 10. Re1 cxd4 11. exd4 Rc8 12. c3) 6... Bd7?! { (-1.50 → -0.69) Inaccuracy. h5 was best. } (6... h5 7. e3 h4 8. gxh4 Ne7 9. Ng5 Nf5 10. Nf3 Bd7 11. Nc3 Ng8 12. Ne2 Nxh4 13. Nxh4) 7. Qf2?? { (-0.69 → -2.51) Blunder. c3 was best. } (7. c3 h5 8. d4 Ne7 9. Ng5 c5 10. Nd2 cxd4 11. Ndf3 Nf5 12. Ne5 Nd6 13. c4 dxc4) 7... e5?? { (-2.51 → -0.32) Blunder. h5 was best. } (7... h5 8. Ng5) 8. Qe3?? { (-0.32 → -2.79) Blunder. fxe5 was best. } (8. fxe5 Nxe5 9. d4 Neg4 10. Qf3 c5 11. Nc3 cxd4 12. Nxd5 Bc6 13. e4 dxe3 14. Nxf6+ Nxf6) 8... Qe7?? { (-2.79 → -0.39) Blunder. e4 was best. } (8... e4 9. f5 h5 10. c4 Nb4 11. Na3 Ng4 12. Qb3 h4 13. Rf4 hxg3 14. Rxg4 gxh2+ 15. Kh1) 9. Qxe5?? { (-0.39 → -8.53) Blunder. fxe5 was best. } (9. fxe5 Ng4) 9... O-O-O?? { (-8.53 → 0.98) Blunder. Nxe5 was best. } (9... Nxe5) 10. Qe3?? { (0.98 → -1.50) Blunder. Qxe7 was best. } (10. Qxe7 Bxe7) 10... Ng4?? { (-1.50 → 0.20) Blunder. Qxe3+ was best. } (10... Qxe3+ 11. dxe3) 11. Qd3?? { (0.20 → -4.40) Blunder. Qxe7 was best. } (11. Qxe7 Bxe7) 11... Nge5?? { (-4.40 → 4.70) Blunder. Qc5+ was best. } (11... Qc5+ 12. e3) 12. Qe3?? { (4.70 → -1.76) Blunder. fxe5 was best. } (12. fxe5) 12... f6?? { (-1.76 → 4.35) Blunder. d4 was best. } (12... d4 13. Qb3) 13. Qf3?? { (4.35 → -9.69) Blunder. fxe5 was best. } (13. fxe5 fxe5 14. b3 Kb8 15. c3 d4 16. cxd4 Nxd4 17. Ba3 Qe8 18. Bxf8 Rxf8 19. Na3 Bc6) 13... h5?? { (-9.69 → 2.11) Blunder. Nxf3+ was best. } (13... Nxf3+ 14. exf3 Nd4 15. Nc3 Bf5 16. Nf2 Kb8 17. b4 Nxc2 18. Rb1 Nxb4 19. Rb2 Bd3 20. Nxd3) 14. g4?? { (2.11 → -10.95) Blunder. fxe5 was best. } (14. fxe5) 14... Rh6? { (-10.95 → -4.97) Mistake. Nxf3+ was best. } (14... Nxf3+ 15. Rxf3) 15. Qg3 f5?? { (-5.98 → 2.61) Blunder. hxg4 was best. } (15... hxg4 16. Nf2 Ng6 17. Nc3 Nh4 18. Bxd5 Nb4 19. Bb3 Nf5 20. Qg2 Nd4 21. Nxg4 Rg6 22. f5) 16. Qh4?? { (2.61 → -10.76) Blunder. g5 was best. } (16. g5) 16... Qxh4 17. g5 Qg4 18. e4 dxe4 { White left the game. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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