Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/ZjDzpTYQ"]
[Date "2026.05.29"]
[White "Lucas1"]
[Black "Daniella"]
[Result "1-0"]
[UTCDate "2026.05.29"]
[UTCTime "20:49:23"]
[WhiteElo "1268"]
[BlackElo "1013"]
[WhiteRatingDiff "+10"]
[BlackRatingDiff "-11"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C42"]
[Opening "Russian Game"]
[Termination "Time forfeit"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nf6 { C42 Russian Game } 3. Bb5? { (0.75 → -0.75) Mistake. Nxe5 was best. } (3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nf6 9. Nc3 O-O) 3... Bc5?? { (-0.75 → 0.85) Blunder. Nxe4 was best. } (3... Nxe4 4. d4 exd4 5. Qe2 Qe7 6. O-O a6 7. Bc4 Nf6 8. Re1 d5 9. Bxd5 Qxe2 10. Rxe2+) 4. O-O Bxf2+?? { (0.51 → 6.07) Blunder. O-O was best. } (4... O-O 5. d4) 5. Kxf2 Nxe4+ 6. Ke3?? { (6.06 → 0.56) Blunder. Kg1 was best. } (6. Kg1 c6) 6... Nxd2?? { (0.56 → 6.98) Blunder. Nd6 was best. } (6... Nd6 7. Nc3) 7. Qxd2 O-O 8. Qd1?! { (7.26 → 4.90) Inaccuracy. Kf2 was best. } (8. Kf2 e4) 8... Re8?! { (4.90 → 7.30) Inaccuracy. c6 was best. } (8... c6 9. Bd3) 9. Nxe5?? { (7.30 → -3.50) Blunder. Kf2 was best. } (9. Kf2 c6 10. Be2 Qb6+ 11. Be3 Qxb2 12. Nbd2 d5 13. Nb3 a5 14. Bc1 Qc3 15. Bd2 Qb2) 9... Rxe5+ 10. Kf2 Rxb5 11. Qd3 Rxb2?? { (-3.35 → 7.89) Blunder. Rh5 was best. } (11... Rh5) 12. Bxb2 Qe7 13. Qe3 Qxe3+ 14. Kxe3 Na6 15. Rf4 f5 16. Rxf5 c5 17. Re5 { White wins on time. } 1-0