[Event "Yearly Classical Arena"] [Site "https://lichess.org/0DS9x3Ih"] [Date "2019.11.15"] [White "Perpet"] [Black "ElementaryK"] [Result "0-1"] [UTCDate "2019.11.15"] [UTCTime "18:59:12"] [WhiteElo "1546"] [BlackElo "1744"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+22"] [Variant "Standard"] [TimeControl "1200+10"] [ECO "B00"] [Opening "Nimzowitsch Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 Nc6 2. d4 { B00 Nimzowitsch Defense } e6 3. Nf3?! { (0.74 → 0.19) Inaccuracy. d5 was best. } (3. d5 Ne5 4. Nc3 exd5 5. Qxd5 d6 6. Bf4 Nf6 7. Qd4 Be7) 3... h6 4. Bb5 a6 5. Bxc6 dxc6 6. O-O Nf6 7. Re1 Bb4 8. c3 Ba5?! { (1.07 → 1.92) Inaccuracy. Be7 was best. } (8... Be7 9. c4) 9. b4 Bb6 10. e5 Nd5 11. a4?! { (1.77 → 1.03) Inaccuracy. c4 was best. } (11. c4 Ne7 12. a4 a5 13. c5 Ba7 14. bxa5 b6 15. axb6 cxb6 16. cxb6 Bxb6 17. Ba3 O-O) 11... Ba7?! { (1.03 → 1.84) Inaccuracy. a5 was best. } (11... a5 12. b5) 12. a5?! { (1.84 → 1.21) Inaccuracy. Qb3 was best. } (12. Qb3 b6) 12... Qe7 13. Bb2 Bd7 14. Na3? { (1.27 → 0.00) Mistake. Ba3 was best. } (14. Ba3) 14... O-O-O 15. Nc2 g5?! { (0.31 → 1.31) Inaccuracy. f5 was best. } (15... f5 16. exf6) 16. h3?? { (1.31 → -0.45) Blunder. Ne3 was best. } (16. Ne3 Rhf8 17. Nd2 f5 18. exf6 Qxf6 19. Ng4 Qg7 20. Ne5 Be8 21. Ne4 Kb8 22. h3 h5) 16... h5 17. Ne3? { (0.11 → -1.17) Mistake. c4 was best. } (17. c4) 17... g4 18. Nxd5 exd5 19. hxg4?? { (-1.38 → -7.86) Blunder. Nh2 was best. } (19. Nh2 Rdg8) 19... hxg4 20. Nh2 Qh4 21. Nxg4? { (-8.39 → Mate in 1) Checkmate is now unavoidable. Kf1 was best. } (21. Kf1 Qxh2) 21... Qh1# { Black wins by checkmate. } 0-1