CohenChessClub.com

[Event "MrCohenOS Arena"] [Site "https://cohenchessclub.com/WSD8syGB"] [Date "2026.06.29"] [White "Ezra3"] [Black "colton1"] [Result "0-1"] [UTCDate "2026.06.29"] [UTCTime "15:16:58"] [WhiteElo "1154"] [BlackElo "1587"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+2"] [BlackTitle "GM🤔"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Blackmar-Diemer Gambit Declined: Lamb Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. f3? { (0.38 → -0.78) Mistake. c4 was best. } (2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Nf3 h6 6. Bf4 c6 7. Qc2 Bd6 8. Bxd6 Qxd6) 2... Nf6 3. Nc3 Nc6?! { (-0.70 → -0.14) Inaccuracy. e6 was best. } (3... e6 4. e4 c5 5. exd5 Nxd5 6. Nxd5 exd5 7. Ne2 Nc6 8. Be3 c4 9. Nf4 b5 10. g3) 4. e4 dxe4 { D00 Blackmar-Diemer Gambit Declined: Lamb Defense } 5. fxe4?? { (-0.30 → -2.18) Blunder. d5 was best. } (5. d5 Ne5) 5... Nxd4?! { (-2.18 → -1.39) Inaccuracy. Qxd4 was best. } (5... Qxd4 6. Qxd4 Nxd4 7. Bd3 e5 8. Nf3 Nxf3+ 9. gxf3 c6 10. a4 Nh5 11. Be3 Be7 12. Ne2) 6. Bc4?! { (-1.39 → -2.07) Inaccuracy. Nf3 was best. } (6. Nf3) 6... Bg4 7. Nge2?! { (-2.00 → -3.00) Inaccuracy. Qd3 was best. } (7. Qd3 e5 8. Bg5 c6 9. h3 Bh5 10. g4 Bg6 11. O-O-O Qc7 12. Nf3 O-O-O 13. Qf1 Be7) 7... Bxe2? { (-3.00 → -1.60) Mistake. e5 was best. } (7... e5 8. a3 Bc5 9. Bg5 c6 10. h3 Be6 11. Nxd4 Qxd4 12. Qxd4 exd4 13. Bxe6 fxe6 14. Na4) 8. Nxe2? { (-1.60 → -2.93) Mistake. Bxe2 was best. } (8. Bxe2 Nc6 9. Bd2 a6 10. Bf4 e5 11. Bg5 Bb4 12. Qxd8+ Nxd8 13. Bxf6 Bxc3+ 14. bxc3 gxf6) 8... Nxe2?? { (-2.93 → -0.68) Blunder. Nc6 was best. } (8... Nc6) 9. Qxe2 Qd4?? { (-0.92 → 0.66) Blunder. e6 was best. } (9... e6 10. e5 Nd7 11. Bf4 Nb6 12. Rd1 Qh4+ 13. g3 Qh3 14. Be3 Be7 15. Rf1 c6) 10. b3?? { (0.66 → -8.05) Blunder. e5 was best. } (10. e5 Ne4) 10... Qxa1 11. Qd3 Qxc1+ 12. Kf2 Rd8?! { (-18.34 → -5.28) Inaccuracy. Qxh1 was best. } (12... Qxh1) 13. Qf1?! { (-5.28 → -20.07) Inaccuracy. Bxf7+ was best. } (13. Bxf7+ Kxf7) 13... Qxc2+ 14. Kg1 Qxe4 15. h3 c6 16. Be2 e6 17. Bd1?! { (-19.25 → Mate in 5) Checkmate is now unavoidable. Qf3 was best. } (17. Qf3 Bc5+) 17... Rxd1?! { (Mate in 5 → -19.34) Lost forced checkmate sequence. Qe3+ was best. } (17... Qe3+ 18. Qf2 Rxd1+ 19. Kh2 Bd6+ 20. Qf4 Bxf4+ 21. g3 Qxg3#) 18. Qxd1 Bc5+ 19. Kf1 Qf4+ 20. Ke2?! { (-19.07 → Mate in 2) Checkmate is now unavoidable. Qf3 was best. } (20. Qf3 Qc1+ 21. Ke2 Qxh1 22. a3 O-O 23. b4 Bb6 24. Qf2 Bc7 25. a4 Rd8 26. Qf1 Qxf1+) 20... Qe3+ 21. Kf1 Qf2# { Black wins by checkmate. } 0-1