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Puzzles (3 cohencoins award for each match):

Puzzle 5kJ8w: 999999999

IM Caroline1 (1165) +18
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/slsDFzlI"] [Date "2026.02.03"] [White "Samuel4"] [Black "Caroline1"] [Result "0-1"] [UTCDate "2026.02.03"] [UTCTime "15:10:45"] [WhiteElo "1223"] [BlackElo "1165"] [WhiteRatingDiff "-171"] [BlackRatingDiff "+18"] [BlackTitle "IM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C65"] [Opening "Ruy Lopez: Berlin Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 { C65 Ruy Lopez: Berlin Defense } 4. Bxc6?! { (0.49 → -0.08) Inaccuracy. O-O was best. } (4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Re8) 4... bxc6?! { (-0.08 → 0.62) Inaccuracy. dxc6 was best. } (4... dxc6 5. Nc3) 5. O-O Nxe4 6. Nxe5 Bc5? { (0.50 → 1.57) Mistake. Be7 was best. } (6... Be7) 7. Qe1?! { (1.57 → 0.77) Inaccuracy. d4 was best. } (7. d4 Be7 8. Re1 Nd6 9. c4 O-O 10. Nc3 Nf5 11. c5 a5 12. a3 Nh4 13. Qa4 Ng6) 7... Bxf2+?? { (0.77 → 8.38) Blunder. f5 was best. } (7... f5) 8. Rxf2 Nxf2? { (8.37 → Mate in 3) Checkmate is now unavoidable. Qh4 was best. } (8... Qh4 9. Re2 Qxe1+ 10. Rxe1 O-O 11. Rxe4 Re8 12. d3 c5 13. Re3 d6 14. Nc3 Rxe5 15. Rxe5) 9. Qxf2?? { (Mate in 3 → 3.08) Lost forced checkmate sequence. Ng6+ was best. } (9. Ng6+ Ne4 10. Qxe4+ Qe7 11. Qxe7#) 9... O-O 10. Qd4?? { (2.79 → 0.93) Blunder. Nc3 was best. } (10. Nc3 f6) 10... Ba6?! { (0.93 → 1.59) Inaccuracy. Re8 was best. } (10... Re8 11. Nc3) 11. b4?! { (1.59 → 0.95) Inaccuracy. Nc3 was best. } (11. Nc3 c5 12. Qf4 d6 13. Nf3 Qd7 14. d3 Bb7 15. Bd2 h6 16. Rf1 f5 17. h4 Rae8) 11... d6?! { (0.95 → 1.66) Inaccuracy. f6 was best. } (11... f6 12. Nf3) 12. Nxc6?? { (1.66 → -5.33) Blunder. Nf3 was best. } (12. Nf3 Be2 13. Bb2 f6 14. Nc3 Bxf3 15. gxf3 Qe8 16. Ne4 a5 17. bxa5 Qh5 18. Ng3 Qxf3) 12... Qe8 13. Bb2?? { (-5.39 → Mate in 1) Checkmate is now unavoidable. Qf2 was best. } (13. Qf2 Qxc6 14. Nc3 Bb7 15. Bb2 Rfe8 16. b5 Qd7 17. a4 f6 18. Rf1 a6 19. d3 Qf7) 13... Qe1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting