[Event "Rated rapid game"] [Site "https://lichess.org/pdKkO6fU"] [Date "2020.08.28"] [White "kosyrev"] [Black "proofbycontradiction"] [Result "0-1"] [UTCDate "2020.08.28"] [UTCTime "15:23:39"] [WhiteElo "1780"] [BlackElo "1826"] [WhiteRatingDiff "-5"] [BlackRatingDiff "+5"] [Variant "Standard"] [TimeControl "600+0"] [ECO "B01"] [Opening "Scandinavian Defense: Valencian Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 { B01 Scandinavian Defense: Valencian Variation } 4. Nf3 Bg4 5. Be2 Nf6 6. h3 Bh5 7. g4 Bg6 8. Ne5 e6 9. h4? { (0.67 → -0.84) Mistake. Bf3 was best. } (9. Bf3) 9... Qd4 10. Nxg6 hxg6 11. Nb5 Qb6 12. f3?? { (-0.80 → -2.75) Blunder. g5 was best. } (12. g5) 12... a6 13. Nc3 Nc6 14. d3 Bb4?! { (-3.33 → -2.32) Inaccuracy. Bd6 was best. } (14... Bd6 15. Kf1) 15. Bd2?? { (-2.32 → -6.58) Blunder. Kf1 was best. } (15. Kf1 O-O-O) 15... O-O-O?? { (-6.58 → -2.72) Blunder. Rxh4 was best. } (15... Rxh4 16. Rf1 Nd4 17. a3 Bd6 18. Be3 Rh2 19. Qd2 Qxb2 20. Ra2 Qb6 21. Bg1 Rg2 22. f4) 16. a3?? { (-2.72 → -6.42) Blunder. Kf1 was best. } (16. Kf1 Nd4) 16... Bc5?? { (-6.42 → -3.15) Blunder. Rxh4 was best. } (16... Rxh4 17. Rf1 Bd6 18. Qc1 Nd4 19. Be3 Nd5 20. Bxd4 Qxd4 21. Nxd5 exd5 22. c3 Bg3+ 23. Kd1) 17. Na4 Bf2+ 18. Kf1 Qa7 19. Bg5?? { (-2.54 → -9.39) Blunder. Kg2 was best. } (19. Kg2 Kb8 20. b4 e5 21. Nc5 Bxc5 22. bxc5 Qxc5 23. c3 Nd5 24. Qb3 b6 25. a4 Ne3+) 19... Nd5?! { (-9.39 → -5.19) Inaccuracy. Bg3 was best. } (19... Bg3 20. Qe1 Bxe1 21. Rxe1 Qd4 22. Nc3 Qb6 23. Rb1 Nd5 24. Nxd5 Rxd5 25. Bd2 Ne5 26. Bd1) 20. Qc1? { (-5.19 → -10.94) Mistake. Kg2 was best. } (20. Kg2 Bxh4 21. Rxh4 Rxh4 22. Qg1 Rdh8 23. Bxh4 Nf4+ 24. Kf1 Qxg1+ 25. Kxg1 Nxe2+ 26. Kf2 Rxh4) 20... Bg3 21. Kg2?! { (-10.92 → Mate in 4) Checkmate is now unavoidable. Rh2 was best. } (21. Rh2 f6) 21... Qf2+ 22. Kh3 Nf4+ 23. Bxf4 Rxh4# { Black wins by checkmate. } 0-1