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Puzzles (3 cohencoins award for each match):

Puzzle t2TwK: 727

FEN
[Event "MrCohenOS Arena"] [Site "https://cohenchessclub.com/OSPDsnQl"] [Date "2026.06.05"] [White "Robbie3"] [Black "Armaan"] [Result "0-1"] [UTCDate "2026.06.05"] [UTCTime "23:03:02"] [WhiteElo "1212"] [BlackElo "1318"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+9"] [WhiteTitle "NM"] [BlackTitle "IM"] [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 } Nxe4 5. Nxe4 d5 6. Bb5?? { (0.00 → -2.73) Blunder. Bd3 was best. } (6. Bd3 dxe4 7. Bxe4 Nb4 8. c3 Nd3+ 9. Bxd3 Qxd3 10. Nxe5 Qe4+ 11. Qe2 Qxg2 12. Nf3+ Be7) 6... dxe4 7. Bxc6+?? { (-2.67 → -6.00) Blunder. Nxe5 was best. } (7. Nxe5) 7... bxc6 8. Nxe5 f6?? { (-5.92 → 4.20) Blunder. Qg5 was best. } (8... Qg5 9. d4 Qxg2 10. Rf1 Bh3 11. Ke2 Qxf1+ 12. Qxf1 Bxf1+ 13. Kxf1 c5 14. Bf4 cxd4 15. Nc6) 9. Nxc6?? { (4.20 → -7.59) Blunder. Qh5+ was best. } (9. Qh5+) 9... Qd7?? { (-7.59 → 0.07) Blunder. Qd5 was best. } (9... Qd5 10. Nxa7) 10. Na5?? { (0.07 → -2.05) Blunder. Qh5+ was best. } (10. Qh5+ Qf7) 10... Ba6?! { (-2.05 → -1.05) Inaccuracy. Qd5 was best. } (10... Qd5) 11. Nb3?? { (-1.05 → -3.38) Blunder. b3 was best. } (11. b3 Qd4 12. c3 Qd3 13. Nc4 h5 14. Qe2 Qxe2+ 15. Kxe2 O-O-O 16. Re1 Bc5 17. Kf1 f5) 11... Qf5? { (-3.38 → -1.98) Mistake. O-O-O was best. } (11... O-O-O 12. Qh5) 12. Nd4 Qd5?! { (-2.37 → -1.74) Inaccuracy. Qg6 was best. } (12... Qg6 13. c4 O-O-O 14. Qa4 Bb7 15. Ne6 Qxg2 16. Rf1 Be7 17. c5 e3 18. fxe3 f5 19. Nxd8) 13. Nb3?? { (-1.74 → -4.79) Blunder. c3 was best. } (13. c3) 13... O-O-O 14. d4?! { (-5.13 → -6.87) Inaccuracy. c3 was best. } (14. c3 Qg5) 14... exd3 15. Qg4+ f5 16. cxd3 Qxd3 17. Nc5?! { (-15.71 → Mate in 4) Checkmate is now unavoidable. Bd2 was best. } (17. Bd2 Re8+) 17... Qb5?? { (Mate in 4 → -2.07) Lost forced checkmate sequence. Bxc5 was best. } (17... Bxc5 18. Qxf5+ Qxf5 19. Be3 Qd3 20. Bxc5 Qe2#) 18. Nxa6?? { (-2.07 → -13.24) Blunder. Qxf5+ was best. } (18. Qxf5+ Kb8 19. Nxa6+ Qxa6 20. Bd2 Qc4 21. Rc1 Re8+ 22. Kd1 Qe2+ 23. Kc2 Bb4 24. Rcd1 Rhf8) 18... fxg4 19. Bg5 Qxa6 20. Bxd8 Kxd8? { (Mate in 5 → -8.69) Lost forced checkmate sequence. Bb4+ was best. } (20... Bb4+ 21. Kd1 Rxd8+ 22. Kc2 Qd3+ 23. Kc1 Rd4 24. Re1 Rc4#) 21. O-O-O+ Kc8 22. Rhe1 Bb4 23. Re2 Qxe2 24. g3 Qxf2 25. Kb1?! { (-14.02 → Mate in 6) Checkmate is now unavoidable. a3 was best. } (25. a3 Bc5) 25... Qxh2?! { (Mate in 6 → -15.30) Lost forced checkmate sequence. Qe2 was best. } (25... Qe2 26. a3 Qxd1+ 27. Ka2 Rf8 28. h4 Qd5+ 29. Kb1 Rf1+ 30. Kc2 Qd1#) 26. a3 Bd6 27. b4?! { (-16.87 → Mate in 4) Checkmate is now unavoidable. Rc1 was best. } (27. Rc1 Be5) 27... Qxg3 28. Rd4 Qe1+ 29. Kb2 Qe2+ 30. Kb3 Qe3+ 31. Ka4 Qxd4 32. Kb3 a6 33. Ka4 a5 34. Kxa5 Qb6+ 35. Ka4 Qa6+ 36. Kb3 Re8 37. a4 Re3+ 38. Kb2 Qe2+ 39. Kc1 Rd3 40. Kb1 Rd1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting