FEN
[Event "October Chess Megatournament"]
[Site "https://cohenchessclub.com/lpaQq8Wp"]
[Date "2022.10.22"]
[White "Nikolai"]
[Black "Matthew4"]
[Result "0-1"]
[UTCDate "2022.10.22"]
[UTCTime "19:25:24"]
[WhiteElo "1120"]
[BlackElo "1844"]
[WhiteRatingDiff "+0"]
[BlackRatingDiff "+1"]
[BlackTitle "GM🦃"]
[Variant "Standard"]
[TimeControl "900+0"]
[ECO "A46"]
[Opening "Indian Defense: London System"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. d4 Nf6 2. Nf3 e6 3. Bf4 { A46 Indian Defense: London System } b6 4. Nc3?! { (0.25 → -0.52) Inaccuracy. e3 was best. } (4. e3 Bb7) 4... Bb7 5. e3 a6 6. Be2 d5 7. O-O Ne4? { (-0.17 → 1.03) Mistake. Nbd7 was best. } (7... Nbd7) 8. Nxe4 dxe4 9. Nh4?? { (1.12 → -4.50) Blunder. Nd2 was best. } (9. Nd2 Bd6 10. Bxd6 cxd6 11. c4 O-O 12. b4 a5 13. Qb1 f5 14. bxa5 Rxa5 15. a4 Bc6) 9... Qxh4?! { (-4.50 → -3.55) Inaccuracy. Nd7 was best. } (9... Nd7 10. d5) 10. g3? { (-3.55 → -6.73) Mistake. Bxc7 was best. } (10. Bxc7 Nd7 11. h3 Rc8 12. Bh2 Be7 13. c4 O-O 14. a3 Bd8 15. Bd6 Re8 16. Rc1 Bc7) 10... Qd8 11. h4 Bd6 12. Bg5 f6 13. Bf4 Bxf4 14. gxf4 O-O 15. h5 f5 16. c3 Nd7 17. Qd2 Qh4 18. Kg2 Nf6 19. f3 exf3+ 20. Rxf3 Ng4 21. Kf1?! { (-22.25 → Mate in 1) Checkmate is now unavoidable. Rh1 was best. } (21. Rh1 Qf2+) 21... Qh1# { Black wins by checkmate. } 0-1