lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/4g11c9F5"] [Date "2020.12.19"] [Round "-"] [White "Daria_Cirstea"] [Black "Damir_DJ"] [Result "0-1"] [UTCDate "2020.12.19"] [UTCTime "17:12:29"] [WhiteElo "1237"] [BlackElo "1717"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D05"] [Opening "Colle System"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 d5 2. e3?! { (0.53 → 0.02) Inaccuracy. Best move was c4. } (2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. e3 O-O 6. Be2 Nbd7) 2... e6 3. Nf3 Nf6 { D05 Colle System } 4. Bb5+?! { (0.33 → -0.64) Inaccuracy. Best move was Bd3. } (4. Bd3 c5 5. O-O Nc6 6. b3 Be7 7. Nbd2 O-O 8. Bb2 b6) 4... c6?! { (-0.64 → 0.12) Inaccuracy. Best move was Nbd7. } (4... Nbd7 5. O-O Bd6 6. Bd3 O-O 7. c4 dxc4 8. Bxc4 b6 9. Re1 Bb7 10. Nbd2 e5 11. e4) 5. Ba4? { (0.12 → -1.23) Mistake. Best move was Bd3. } (5. Bd3 Nbd7 6. Nc3 Bd6 7. e4 e5 8. exd5 cxd5 9. Nxe5 Nxe5 10. Qe2 Qe7 11. dxe5 Bxe5) 5... Qa5+? { (-1.23 → 0.12) Mistake. Best move was b5. } (5... b5) 6. Bd2?? { (0.12 → -5.29) Blunder. Best move was c3. } (6. c3 Nbd7 7. O-O Bd6 8. Nbd2 O-O 9. Re1 Ne4 10. Nxe4 dxe4 11. Nd2 f5 12. Nc4 Qc7) 6... Qxa4 7. b3?! { (-4.79 → -5.37) Inaccuracy. Best move was O-O. } (7. O-O Qa6 8. Nc3 Nbd7 9. Re1 Be7 10. e4 dxe4 11. Nxe4 Nxe4 12. Rxe4 O-O 13. Re1 b6) 7... Qb5?! { (-5.37 → -4.72) Inaccuracy. Best move was Qa6. } (7... Qa6 8. Qc1 Bd6 9. c4 O-O 10. O-O Nbd7 11. a4 c5 12. cxd5 cxd4 13. exd4 Nxd5 14. Na3) 8. Nc3?! { (-4.72 → -5.33) Inaccuracy. Best move was c4. } (8. c4 Qa6) 8... Qb6?! { (-5.33 → -4.40) Inaccuracy. Best move was Qa6. } (8... Qa6) 9. Na4?! { (-4.40 → -5.18) Inaccuracy. Best move was O-O. } (9. O-O Nbd7 10. Qe2 Qa6 11. Qxa6 bxa6 12. Ne2 Bb7 13. a3 Bd6 14. Bb4 Bc7 15. a4 a5) 9... Qc7 10. O-O b5?! { (-5.37 → -4.59) Inaccuracy. Best move was Be7. } (10... Be7) 11. Nc3? { (-4.59 → -5.68) Mistake. Best move was Nb2. } (11. Nb2 a5 12. c4 bxc4 13. bxc4 Ne4 14. Rb1 Be7 15. Qa4 Bd6 16. Qc2 O-O 17. Rfc1 Qe7) 11... Ba6?! { (-5.68 → -4.91) Inaccuracy. Best move was Nbd7. } (11... Nbd7 12. Ne2) 12. g3? { (-4.91 → -5.92) Mistake. Best move was Re1. } (12. Re1 Nbd7 13. a3 Ne4 14. Nxe4 dxe4 15. Ng5 Nf6 16. f3 exf3 17. Nxf3 Ne4 18. Qe2 Be7) 12... b4?! { (-5.92 → -5.33) Inaccuracy. Best move was Nbd7. } (12... Nbd7) 13. Na4? { (-5.33 → -7.03) Mistake. Best move was Ne2. } (13. Ne2 Nbd7 14. Bc1 Be7 15. Bb2 Qa5 16. Ne1 Rb8 17. h3 O-O 18. Nd3 Rfc8 19. a3 bxa3) 13... Bxf1 14. Kxf1?! { (-6.50 → -7.20) Inaccuracy. Best move was Qxf1. } (14. Qxf1 Nbd7 15. Rc1 Qb7 16. Qe2 h5 17. c3 a5 18. c4 Be7 19. h4 Ne4 20. Be1 O-O) 14... Na6? { (-7.20 → -6.11) Mistake. Best move was Nbd7. } (14... Nbd7 15. Rc1 h5 16. c4 Qb7 17. h4 Ne4 18. Be1 Bd6 19. Nd2 Nef6 20. cxd5 cxd5 21. Qc2) 15. Nb2? { (-6.11 → -7.13) Mistake. Best move was a3. } (15. a3 bxa3 16. Bc1 Ne4 17. Qe2 Nb8 18. Ne5 Nf6 19. Bxa3 Bxa3 20. Rxa3 Nbd7 21. Nxd7 Nxd7) 15... Qb7 16. Nd3 Ne4 17. Nxb4? { (-7.11 → -10.17) Mistake. Best move was Bc1. } (17. Bc1 c5) 17... Nxb4 18. a3 Na6 19. Ra2 Nxd2+ 20. Nxd2 Qe7 21. Nf3 Qf6 22. Kg1 g5 23. Kg2 g4 24. Nd2 h5 25. b4 Qg5 26. Nf1 h4 27. c3 h3+ 28. Kg1 Qg6 29. Re2 Qe4 30. Qd2?! { (-10.96 → Mate in 1) Checkmate is now unavoidable. Best move was f4. } (30. f4 gxf3) 30... Qg2# { Black wins by checkmate. } 0-1