lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/I1kyDK4N"] [Date "2020.11.21"] [Round "-"] [White "CovganetIlinca_13883"] [Black "victoriabulgac99"] [Result "0-1"] [UTCDate "2020.11.21"] [UTCTime "17:16:26"] [WhiteElo "1667"] [BlackElo "1955"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+16"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Four Knights Game"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 { C46 Four Knights Game } 4. b3? { (0.36 → -0.74) Mistake. Best move was Bb5. } (4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. h3 a6 8. Bxc6 bxc6) 4... Bb4?! { (-0.74 → -0.01) Inaccuracy. Best move was Bc5. } (4... Bc5 5. Bb5) 5. Bb2? { (-0.01 → -1.29) Mistake. Best move was Bd3. } (5. Bd3 O-O) 5... d6? { (-1.29 → -0.23) Mistake. Best move was Bxc3. } (5... Bxc3) 6. a3? { (-0.23 → -1.75) Mistake. Best move was Bd3. } (6. Bd3 O-O) 6... Bxc3 7. Bxc3 Nxe4 8. g3? { (-1.13 → -2.44) Mistake. Best move was Bb2. } (8. Bb2) 8... Bg4?! { (-2.44 → -1.76) Inaccuracy. Best move was Nxc3. } (8... Nxc3 9. dxc3) 9. Bg2?? { (-1.76 → -5.57) Blunder. Best move was h3. } (9. h3 Nxc3 10. dxc3 Be6 11. Qe2 O-O 12. O-O-O Qe7 13. Kb2 f5 14. h4 h6 15. Bg2 a5) 9... Nxc3 10. dxc3 O-O?? { (-5.47 → -1.76) Blunder. Best move was e4. } (10... e4) 11. h3 Bh5 12. g4?! { (-1.75 → -2.28) Inaccuracy. Best move was Qd5. } (12. Qd5 Kh8) 12... Bg6 13. Nh4?? { (-1.90 → -7.59) Blunder. Best move was Qd2. } (13. Qd2 e4) 13... Qxh4 14. Qe2 h6?! { (-7.51 → -6.82) Inaccuracy. Best move was f5. } (14... f5 15. O-O-O fxg4 16. Rd2 g3 17. Rf1 e4 18. Qe3 gxf2 19. Rdxf2 Rxf2 20. Rxf2 Rf8 21. Rf1) 15. O-O-O Qg5+ 16. Kb1 a5?! { (-7.03 → -6.27) Inaccuracy. Best move was e4. } (16... e4 17. Bxe4 Rae8 18. f3 Qe5 19. Rhe1 Qxc3 20. Qd3 Qxd3 21. cxd3 f5 22. Bxc6 bxc6 23. Kc1) 17. h4 Qf4 18. a4?! { (-6.42 → -6.99) Inaccuracy. Best move was Rde1. } (18. Rde1 Rfe8 19. Bd5 Ne7 20. Bxb7 Rab8 21. Be4 Bxe4 22. Qxe4 Qxf2 23. c4 a4 24. b4 Ng6) 18... Rfe8?! { (-6.99 → -6.32) Inaccuracy. Best move was e4. } (18... e4) 19. c4?? { (-6.32 → -10.99) Blunder. Best move was Rh3. } (19. Rh3 e4 20. Re3 Re6 21. Rf1 Rae8 22. Kb2 d5 23. Qb5 Ne5 24. Bh3 c6 25. Qxb7 Nxg4) 19... Nd4 20. Qe1 Nxc2 21. Qg1 Ne3+ 22. Kc1?! { (-10.80 → Mate in 2) Checkmate is now unavoidable. Best move was Ka1. } (22. Ka1 Nxd1) 22... Nxd1+?! { (Mate in 2 → Mate in 6) Not the best checkmate sequence. Best move was Nxc4+. } (22... Nxc4+ 23. Rd2 Qxd2#) 23. Kxd1 Qd4+ 24. Ke1 Rab8?! { (Mate in 5 → -14.34) Lost forced checkmate sequence. Best move was Qc3+. } (24... Qc3+ 25. Kd1 Bc2+ 26. Kc1 Bd3+ 27. Kd1 Qc2+ 28. Ke1 Qc1#) 25. f4?! { (-14.34 → Mate in 5) Checkmate is now unavoidable. Best move was Bd5. } (25. Bd5 c6 26. h5 Qc3+ 27. Kf1 Bd3+ 28. Kg2 cxd5 29. Qd1 dxc4 30. bxc4 Bc2 31. Qd5 Qb4) 25... exf4+ 26. Kf1 Bd3# { Black wins by checkmate. } 0-1