lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/5UkJMO87"] [Date "2021.01.16"] [Round "-"] [White "Tabacarum"] [Black "Player1"] [Result "0-1"] [UTCDate "2021.01.16"] [UTCTime "17:15:41"] [WhiteElo "1351"] [BlackElo "1927"] [WhiteRatingDiff "-1"] [BlackRatingDiff "+4"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C24"] [Opening "Bishop's Opening: Berlin Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Bc4 Nf6 { C24 Bishop's Opening: Berlin Defense } 3. Qf3?! { (0.13 → -0.70) Inaccuracy. Best move was Nc3. } (3. Nc3 Nc6 4. d3 Na5 5. Bb3 Bb4 6. Nf3 Bxc3+ 7. bxc3 d6) 3... Bd6?! { (-0.70 → 0.18) Inaccuracy. Best move was c6. } (3... c6 4. Nc3 d5 5. exd5 e4 6. Qe2 cxd5 7. Bxd5 Nxd5 8. Qb5+) 4. d3 O-O 5. Bg5?! { (0.17 → -0.66) Inaccuracy. Best move was Ne2. } (5. Ne2 c6) 5... Be7 6. Bxf6?! { (-0.03 → -0.75) Inaccuracy. Best move was Ne2. } (6. Ne2) 6... Bxf6 7. Nh3? { (-0.20 → -1.54) Mistake. Best move was Nc3. } (7. Nc3 d6 8. Nge2 c6 9. a4 Nd7 10. O-O Nc5 11. a5 Bd7 12. b4 Ne6 13. Bxe6 fxe6) 7... d6?! { (-1.54 → -0.90) Inaccuracy. Best move was Nc6. } (7... Nc6 8. Nd2) 8. g4? { (-0.90 → -2.12) Mistake. Best move was Nd2. } (8. Nd2) 8... g6? { (-2.12 → -1.00) Mistake. Best move was Bh4. } (8... Bh4 9. Nd2 Nc6 10. c3 Ne7 11. Rg1 c6 12. Bb3 a5 13. a4 Ng6 14. d4 Rb8 15. Qe3) 9. g5? { (-1.00 → -2.24) Mistake. Best move was a3. } (9. a3) 9... Be7 10. O-O Nc6 11. Bd5?? { (-2.04 → -8.22) Blunder. Best move was c3. } (11. c3 Na5 12. Na3 c6 13. Qg3 d5 14. Bb3 Nxb3 15. axb3 a5 16. Nc2 f5 17. gxf6 Bxf6) 11... Nd4 12. Qd1? { (-7.66 → -8.66) Mistake. Best move was Qg2. } (12. Qg2 Nxc2) 12... Bxh3 13. Re1? { (-8.57 → -12.67) Mistake. Best move was c3. } (13. c3) 13... Qc8? { (-12.67 → -8.33) Mistake. Best move was Bxg5. } (13... Bxg5 14. Kh1 Bf4 15. Rg1 Qh4 16. Rg3 Bxg3 17. hxg3 Qg5 18. Nd2 Qh6 19. Kg1 Qxd2 20. Qxd2) 14. c3? { (-8.33 → -11.32) Mistake. Best move was f3. } (14. f3 c6 15. c3 Nxf3+ 16. Qxf3 cxd5 17. exd5 Bxg5 18. c4 Bg4 19. Qg2 f5 20. h3 Bh4) 14... Nc6? { (-11.32 → -7.30) Mistake. Best move was Bg4. } (14... Bg4 15. Bxb7 Qd7 16. Bc6 Nxc6 17. f3 Bh5 18. Rf1 Qh3 19. Rf2 Bxg5 20. Qf1 Qxf1+ 21. Rxf1) 15. Bxc6?! { (-7.30 → -8.21) Inaccuracy. Best move was Kh1. } (15. Kh1 Bxg5 16. Rg1 Bf4 17. Nd2 Ne7 18. Bb3 Kh8 19. Nf1 a5 20. Qf3 Ng8 21. Bd1 Nf6) 15... bxc6 16. Na3?! { (-8.02 → -8.58) Inaccuracy. Best move was Kh1. } (16. Kh1 f6) 16... d5? { (-8.58 → -7.46) Mistake. Best move was f6. } (16... f6 17. gxf6 Bxf6 18. f3 Qe6 19. Rf1 Bh4 20. Qe2 Rf7 21. Nc2 Raf8 22. Kh1 Bxf1 23. Rxf1) 17. exd5?! { (-7.46 → -7.96) Inaccuracy. Best move was Nc2. } (17. Nc2 f6) 17... Bxa3 18. bxa3 Bg4? { (-7.77 → -5.73) Mistake. Best move was Qf5. } (18... Qf5 19. Re3 Bg4 20. f3 Bh3 21. Kh1 Qxg5 22. Re2 Qh5 23. Rf2 cxd5 24. Qe2 Rfb8 25. c4) 19. Qb1?? { (-5.73 → -12.23) Blunder. Best move was f3. } (19. f3 Bh5) 19... Bh3?? { (-12.23 → -6.25) Blunder. Best move was Bf3. } (19... Bf3) 20. dxc6?? { (-6.25 → Mate in 2) Checkmate is now unavoidable. Best move was Re3. } (20. Re3) 20... Qg4+ 21. Kh1 Qg2# { Black wins by checkmate. } 0-1