[Event "Rated classical game"] [Site "https://lichess.org/x9ySOqs1"] [Date "2022.12.15"] [White "barredrock"] [Black "osumarko"] [Result "0-1"] [UTCDate "2022.12.15"] [UTCTime "15:56:58"] [WhiteElo "1533"] [BlackElo "1158"] [WhiteRatingDiff "-31"] [BlackRatingDiff "+27"] [Variant "Standard"] [TimeControl "1800+30"] [ECO "B07"] [Opening "Czech Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 d6 2. d4 Nf6 3. Nc3 c6 { B07 Czech Defense } 4. f4 Qa5 5. Bd3 e5 6. dxe5 dxe5 7. f5 Bc5 8. a3?! { (0.72 → -0.05) Inaccuracy. Bd2 was best. } (8. Bd2 Qc7 9. Qf3 h5 10. O-O-O Nbd7 11. h3 b5 12. Nge2 h4) 8... O-O? { (-0.05 → 1.57) Mistake. b5 was best. } (8... b5 9. Bd2) 9. b4?? { (1.57 → -3.61) Blunder. Bd2 was best. } (9. Bd2 Qc7) 9... Bxb4 10. Bd2? { (-3.40 → -6.82) Mistake. axb4 was best. } (10. axb4 Qxa1 11. Nge2 Na6 12. Bxa6 Qxa6 13. Bg5 Qb6 14. Qd3 Nd7 15. f6 Nxf6 16. Bxf6 gxf6) 10... Bxc3 11. Bxc3 Qxc3+ 12. Kf1 Na6 13. Ne2 Qc5 14. h4 Ng4 15. Qc1?! { (-11.71 → Mate in 1) Checkmate is now unavoidable. Ke1 was best. } (15. Ke1 Nf2 16. Bxa6 Nxd1 17. Rxd1 bxa6 18. Rh3 Qxc2 19. Re3 Qc5 20. Rc3 Qe7 21. g3 Bd7) 15... Qf2# { Black wins by checkmate. } 0-1