lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/IFl9C5g2"] [Date "2021.03.14"] [Round "-"] [White "catana"] [Black "Ivanm"] [Result "0-1"] [UTCDate "2021.03.14"] [UTCTime "17:47:17"] [WhiteElo "1670"] [BlackElo "1672"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+117"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Hungarian Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. g3 { A00 Hungarian Opening } e5 2. Bg2?! { (0.38 → -0.50) Inaccuracy. Best move was c4. } (2. c4 c6) 2... d5 3. d4 exd4 4. Qxd4 Nf6 5. Bg5?! { (-0.11 → -0.66) Inaccuracy. Best move was Nf3. } (5. Nf3 Be7) 5... Nc6?! { (-0.66 → 0.00) Inaccuracy. Best move was Be7. } (5... Be7 6. Nc3 c5 7. Qd3 d4 8. Bxf6 Bxf6 9. Nd5 O-O 10. Nh3 Be5 11. Nhf4 Nc6 12. O-O) 6. Qd2?! { (0.00 → -0.94) Inaccuracy. Best move was Qf4. } (6. Qf4 Be7 7. Nc3 Be6 8. Nf3 h6 9. Bxf6 Bxf6 10. Rd1 O-O 11. O-O Bxc3 12. bxc3 Qe7) 6... Bb4?! { (-0.94 → -0.08) Inaccuracy. Best move was Be6. } (6... Be6 7. Nf3) 7. c3?! { (-0.08 → -0.84) Inaccuracy. Best move was Nc3. } (7. Nc3) 7... Bc5 8. b4?! { (-0.27 → -0.83) Inaccuracy. Best move was Bxf6. } (8. Bxf6 Qxf6 9. Nf3 Be6 10. Qg5 Be7 11. Qxf6 Bxf6 12. Nbd2 O-O-O 13. e3 g5 14. h4 h6) 8... Bb6?! { (-0.83 → 0.00) Inaccuracy. Best move was Be7. } (8... Be7 9. Nf3) 9. a4?! { (0.00 → -0.83) Inaccuracy. Best move was Qf4. } (9. Qf4 Qe7 10. Bxf6 gxf6 11. Nf3 h5 12. O-O Ne5 13. h4 a5 14. bxa5 Rxa5 15. Nd4 c6) 9... a5 10. bxa5?! { (-0.50 → -1.16) Inaccuracy. Best move was Be3. } (10. Be3 d4) 10... Rxa5 11. Qd1?? { (-1.08 → -6.15) Blunder. Best move was Qf4. } (11. Qf4 O-O) 11... h6?? { (-6.15 → -1.22) Blunder. Best move was Bxf2+. } (11... Bxf2+) 12. Bxf6 Qxf6 13. Bxd5?? { (-1.33 → -31.45) Blunder. Best move was Nf3. } (13. Nf3 O-O 14. O-O Bd7 15. Qb3 Ne7 16. Nbd2 Rfa8 17. Qb2 Nf5 18. Nb3 Rxa4 19. Rxa4 Rxa4) 13... Qxf2+ 14. Kd2 Rxd5+ 15. Kc1 Rxd1+ 16. Kxd1 Qf1+ 17. Kd2 Bf5 18. Na3?! { (-25.93 → Mate in 7) Checkmate is now unavoidable. Best move was g4. } (18. g4 Bxb1) 18... Qxa1 19. Nf3 Qb2+ 20. Kd1 Qxa3?! { (Mate in 2 → Mate in 5) Not the best checkmate sequence. Best move was Be3. } (20... Be3 21. Nd4 Qd2#) 21. Kd2 Qb2+ 22. Kd1 Qc2+ 23. Ke1 Qc1# { Black wins by checkmate. } 0-1