lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/lUyABOel"] [Date "2021.03.16"] [Round "-"] [White "Andru_2010"] [Black "Eron"] [Result "0-1"] [UTCDate "2021.03.16"] [UTCTime "17:01:07"] [WhiteElo "1630"] [BlackElo "1648"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+112"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C46"] [Opening "Four Knights Game"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 { C46 Four Knights Game } 4. d3?! { (0.36 → -0.62) Inaccuracy. Best move was Bb5. } (4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. h3 a6 8. Bxc6 bxc6) 4... Bc5?! { (-0.62 → 0.21) Inaccuracy. Best move was d5. } (4... d5 5. exd5) 5. Bg5?! { (0.21 → -0.29) Inaccuracy. Best move was Be2. } (5. Be2 d6 6. O-O O-O 7. Na4 Bb6 8. c3 Bd7 9. Nxb6 axb6 10. b4 Qe8 11. Be3 Nd8) 5... O-O?! { (-0.29 → 0.25) Inaccuracy. Best move was Bb4. } (5... Bb4 6. Be2 h6 7. Bh4 d6 8. O-O g5 9. Bg3 O-O 10. a3 Ba5 11. b4 Bb6 12. Na4) 6. Bxf6?! { (0.25 → -0.71) Inaccuracy. Best move was Nd5. } (6. Nd5 Be7) 6... Qxf6 7. h3? { (0.05 → -1.24) Mistake. Best move was Nd5. } (7. Nd5 Qd8 8. c3 Ne7 9. Ne3 Bxe3 10. fxe3 d6 11. Be2 a5 12. O-O a4 13. Qe1 Ng6) 7... Nd4?! { (-1.24 → -0.40) Inaccuracy. Best move was Ne7. } (7... Ne7 8. Qd2 d6 9. O-O-O Bd4 10. Nb5 Bb6 11. Nc3 Rd8 12. Kb1 d5 13. Nxd5 Nxd5 14. exd5) 8. Be2?! { (-0.40 → -1.15) Inaccuracy. Best move was Nd5. } (8. Nd5) 8... Nxf3+ 9. Bxf3 Qh4 10. g3 Qf6? { (-1.14 → 0.05) Mistake. Best move was Qh6. } (10... Qh6 11. Na4 Be7 12. Qd2 Bg5 13. Qe2 d6 14. h4 Bd8 15. Bg4 c6 16. Bxc8 Rxc8 17. Qg4) 11. a3? { (0.05 → -1.06) Mistake. Best move was Nd5. } (11. Nd5 Qd8 12. b4 Be7 13. O-O c6 14. Nxe7+ Qxe7 15. Qd2 d6 16. Bg2 Be6 17. a4 f5) 11... a5?! { (-1.06 → -0.10) Inaccuracy. Best move was c6. } (11... c6 12. Na4 Be7 13. Nc3 g6 14. h4 Qg7 15. Qd2 d6 16. Bg2 h5 17. O-O-O b5 18. Kb1) 12. Qd2?? { (-0.10 → -6.41) Blunder. Best move was Nd5. } (12. Nd5) 12... Bd4?? { (-6.41 → -0.39) Blunder. Best move was Qxf3. } (12... Qxf3) 13. O-O-O?? { (-0.39 → -5.46) Blunder. Best move was Bg2. } (13. Bg2 c6) 13... Qxf3 14. Rhf1? { (-4.91 → -6.42) Mistake. Best move was Nd5. } (14. Nd5 c6 15. Ne7+ Kh8 16. Nf5 d6 17. Nxd4 exd4 18. Rde1 b5 19. Qe2 Qxe2 20. Rxe2 Re8) 14... Bxc3 15. Qxc3 d6 16. b4? { (-6.00 → -8.52) Mistake. Best move was g4. } (16. g4) 16... axb4 17. axb4 Ra1+?? { (-8.99 → 0.00) Blunder. Best move was Bxh3. } (17... Bxh3 18. Rh1 Be6 19. Qe1 f5 20. Qe3 fxe4 21. Qxe4 Qxe4 22. dxe4 Rxf2 23. Rd2 Rf3 24. Rdh2) 18. Kd2?? { (0.00 → -8.92) Blunder. Best move was Qxa1. } (18. Qxa1 Bxh3 19. Rh1 Bg2 20. Rhg1 Qxf2 21. Qc3 Bf3 22. Rdf1 Qb6 23. g4 Be2 24. Re1 Ra8) 18... Rxd1+ 19. Rxd1 Qxf2+ 20. Kc1 Bxh3 21. Qd2? { (-8.21 → -9.43) Mistake. Best move was Kb2. } (21. Kb2 Qxg3 22. d4 Qxc3+ 23. Kxc3 Re8 24. Rd3 Bd7 25. d5 g5 26. Kd2 h5 27. Ke1 g4) 21... Qf3? { (-9.43 → -7.71) Mistake. Best move was Qd4. } (21... Qd4) 22. c3? { (-7.71 → -9.45) Mistake. Best move was Rg1. } (22. Rg1) 22... Ra8 23. Kc2?! { (-9.36 → -66.01) Inaccuracy. Best move was Kb2. } (23. Kb2 f5 24. exf5 Bxf5 25. Ra1 Rf8 26. Re1 b5 27. Qe2 Qxg3 28. Qe3 Qg2+ 29. Qe2 Qxe2+) 23... Ra2+ 24. Kc1 Rxd2 25. Rxd2 Bg4 26. Kc2 Qf1 27. Kb3?! { (-17.12 → Mate in 8) Checkmate is now unavoidable. Best move was b5. } (27. b5) 27... Qb1+ 28. Kc4 b5+?! { (Mate in 2 → Mate in 7) Not the best checkmate sequence. Best move was c6. } (28... c6 29. b5 Qxb5#) 29. Kxb5 Qb3 30. d4 Bd7+ 31. Ka6 Qa4+ 32. Kb7 Qb5+?! { (Mate in 3 → Mate in 3) Not the best checkmate sequence. Best move was Qc6+. } (32... Qc6+ 33. Ka7 Qb6+ 34. Ka8 Bc6#) 33. Kxc7 Qc6+ 34. Kd8 Qc8+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Kf8. } (34... Kf8 35. dxe5 Qc8#) 35. Ke7 Qe8+?! { (Mate in 2 → Mate in 4) Not the best checkmate sequence. Best move was Qc7. } (35... Qc7 36. dxe5 Ba4#) 36. Kxd6 Qe6+ 37. Kc5 Qc6# { Black wins by checkmate. } 0-1