CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/4qEtBdxy"] [Date "2026.08.26"] [White "Cora"] [Black "Trekker"] [Result "0-1"] [UTCDate "2026.08.26"] [UTCTime "20:29:46"] [WhiteElo "1474"] [BlackElo "1714"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+4"] [WhiteTitle "🧶"] [BlackTitle "NM🎅"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B06"] [Opening "Modern Defense: Mongredien Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 g6 2. e4 Bg7 3. Nf3 b6?! { (0.65 → 1.47) Inaccuracy. d6 was best. } { B06 Modern Defense: Mongredien Defense } (3... d6) 4. Nc3 Bb7 5. Bd3 h5?! { (1.35 → 2.37) Inaccuracy. c5 was best. } (5... c5 6. d5) 6. O-O Nh6 7. Bxh6?? { (2.62 → 0.88) Blunder. h3 was best. } (7. h3 d6 8. Bg5 Nd7 9. Re1 O-O 10. Qd2 Kh7 11. Nd5 Ng8 12. a4 c5 13. c3 Bxd5) 7... Bxh6 8. e5 g5?? { (0.89 → 2.83) Blunder. e6 was best. } (8... e6 9. Ne4 d6 10. Qe2 O-O 11. c3 Qe7 12. Rfe1 Nd7 13. h4 dxe5 14. dxe5 Rad8) 9. Be4?! { (2.83 → 1.79) Inaccuracy. d5 was best. } (9. d5 g4) 9... Nc6?? { (1.79 → 4.99) Blunder. c6 was best. } (9... c6 10. Nd2 g4 11. Nc4 Na6 12. Qe2 O-O 13. Bd3 Nb4 14. Ne3 e6 15. Ne4 f5 16. exf6) 10. a3?? { (4.99 → 1.99) Blunder. d5 was best. } (10. d5 Na5 11. b4 Nc4 12. Qe2 g4 13. Qxc4 gxf3 14. Bxf3 O-O 15. Be4 Bg7 16. Rae1 d6) 10... d5?! { (1.99 → 3.06) Inaccuracy. e6 was best. } (10... e6 11. d5) 11. Bxd5? { (3.06 → 1.28) Mistake. Nxd5 was best. } (11. Nxd5) 11... e6 12. Bxc6+?! { (1.60 → 1.00) Inaccuracy. Be4 was best. } (12. Be4) 12... Bxc6 13. a4?! { (1.35 → 0.53) Inaccuracy. Qd3 was best. } (13. Qd3) 13... g4 14. Nd2?? { (0.57 → -2.58) Blunder. d5 was best. } (14. d5 Bxd5 15. Nxd5 Qxd5 16. Qxd5 exd5 17. Nd4 Kd7 18. f4 Bf8 19. Kf2 a5 20. c3 h4) 14... Qh4?? { (-2.58 → 2.61) Blunder. Qxd4 was best. } (14... Qxd4 15. Nb3 Qxe5 16. Re1 Qf6 17. Qe2 O-O 18. Qe5 Qxe5 19. Rxe5 Bg7 20. Rxh5 f5 21. Re1) 15. g3?? { (2.61 → -1.99) Blunder. Nde4 was best. } (15. Nde4 O-O-O) 15... Qh3 16. f3?? { (-1.93 → -9.14) Blunder. Nde4 was best. } (16. Nde4 O-O-O 17. Qd3 h4 18. Rfd1 hxg3 19. Qxg3 Bg7 20. Rd3 Qh5 21. Rad1 Rh6 22. Qg2 Bb7) 16... Be3+ 17. Kh1? { (-8.68 → Mate in 6) Checkmate is now unavoidable. Rf2 was best. } (17. Rf2 h4 18. Qe2 hxg3 19. Qxe3 gxf2+ 20. Qxf2 O-O-O 21. Qg3 gxf3 22. Qxh3 Rxh3 23. Kf2 Rxd4) 17... gxf3? { (Mate in 6 → -7.35) Lost forced checkmate sequence. h4 was best. } (17... h4 18. gxh4 g3 19. Rf2 Bxf2 20. Qg1 Bxg1 21. Kxg1 Qxh2+ 22. Kf1 Qf2#) 18. Nxf3 Rg8 19. Qe2 Rxg3 20. Qxe3? { (-9.69 → Mate in 1) Checkmate is now unavoidable. b4 was best. } (20. b4 Bxf3+) 20... Qg2# { Black wins by checkmate. } 0-1