[Event "Rated blitz game"] [Site "https://lichess.org/de7YJMou"] [Date "2017.02.20"] [White "JohnyMnemonic"] [Black "karlosnikov"] [Result "0-1"] [UTCDate "2017.02.20"] [UTCTime "01:17:37"] [WhiteElo "1987"] [BlackElo "1975"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+11"] [Variant "Standard"] [TimeControl "180+0"] [ECO "C42"] [Opening "Petrov's Defense: Nimzowitsch Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 { C42 Petrov's Defense: Nimzowitsch Attack } Nxc3 6. dxc3 Be7 7. Be3 Nc6 8. Qd2 Be6 9. O-O-O Bxa2?! { (0.23 → 1.02) Inaccuracy. O-O was best. } (9... O-O 10. Kb1 a5 11. Bd3 Re8 12. Rhe1 a4 13. a3 Ra5 14. Nd4 Nxd4 15. cxd4 c6 16. f4) 10. b3 a5 11. Kb2 a4 12. Kxa2 axb3+ 13. Kxb3 Ra5 14. Rb1?? { (1.06 → -1.57) Blunder. Kb2 was best. } (14. Kb2 Qa8) 14... Qa8?? { (-1.57 → 1.11) Blunder. d5 was best. } (14... d5 15. c4) 15. Kb2 O-O 16. Bc4?? { (1.08 → -2.04) Blunder. Bd3 was best. } (16. Bd3 d5 17. Kc1 Ra1 18. Qe1 Rxb1+ 19. Kxb1 Qa5 20. Kc1 Ra8 21. Kd2 Bf6 22. Ke2 Bxc3) 16... b5?? { (-2.04 → 2.40) Blunder. d5 was best. } (16... d5 17. Ra1 dxc4 18. Rxa5 Qxa5 19. Ra1 Qb5+ 20. Kc1 Rd8 21. Qe1 Qd5 22. Bf4 Qd7 23. Ne5) 17. Bb3 d5? { (1.85 → 3.23) Mistake. Bf6 was best. } (17... Bf6 18. Ra1 b4 19. Bd4 Nxd4 20. cxd4 c5 21. Rxa5 Qxa5 22. Ra1 Qd8 23. Bd5 cxd4 24. Qd3) 18. Nd4?? { (3.23 → Mate in 4) Checkmate is now unavoidable. Ra1 was best. } (18. Ra1) 18... Ba3+ 19. Ka2 Bc1+ 20. Ba4 Rxa4+ 21. Kb3 Ra3# { Black wins by checkmate. } 0-1