lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/84vfTv7d"] [Date "2020.12.10"] [Round "-"] [White "Stefansah"] [Black "Ops_MS"] [Result "0-1"] [UTCDate "2020.12.10"] [UTCTime "17:33:31"] [WhiteElo "959"] [BlackElo "1790"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+1"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Ware Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. a4?! { (0.15 → -0.44) Inaccuracy. Best move was e4. } { A00 Ware Opening } (1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6) 1... e5 2. b3? { (0.21 → -1.03) Mistake. Best move was e4. } (2. e4 Nf6) 2... d5 3. c4?! { (-0.72 → -1.68) Inaccuracy. Best move was Bb2. } (3. Bb2 Bd6) 3... d4?! { (-1.68 → -1.14) Inaccuracy. Best move was Nf6. } (3... Nf6 4. cxd5 Nxd5 5. Nc3 Bf5 6. e4 Nxc3 7. dxc3 Qxd1+ 8. Kxd1 Bxe4 9. Nf3 Nd7 10. Be3) 4. d3?! { (-1.14 → -1.82) Inaccuracy. Best move was g3. } (4. g3 c5 5. d3 Nc6 6. Bg2 h6 7. Nf3 Nf6 8. Nbd2 Be7 9. O-O O-O 10. h3 Qc7) 4... Nc6?! { (-1.82 → -1.01) Inaccuracy. Best move was Nf6. } (4... Nf6 5. g3 e4 6. dxe4 Nxe4 7. Bg2 Bb4+ 8. Bd2 Nxd2 9. Nxd2 Nc6 10. Nf3 O-O 11. O-O) 5. e3? { (-1.01 → -3.11) Mistake. Best move was g3. } (5. g3 f5) 5... Bb4+? { (-3.11 → -1.74) Mistake. Best move was e4. } (5... e4 6. Ba3) 6. Qd2?? { (-1.74 → -10.29) Blunder. Best move was Bd2. } (6. Bd2) 6... Bxd2+ 7. Bxd2 Qe7?! { (-10.03 → -9.47) Inaccuracy. Best move was e4. } (7... e4 8. Ne2 dxe3 9. fxe3 Ne5 10. Nf4 exd3 11. Bb4 Bg4 12. Kd2 Bf5 13. Nc3 Nf6 14. Re1) 8. f3?! { (-9.47 → -11.21) Inaccuracy. Best move was e4. } (8. e4) 8... Nf6?! { (-11.21 → -9.12) Inaccuracy. Best move was Nb4. } (8... Nb4) 9. g3?! { (-9.12 → -11.88) Inaccuracy. Best move was e4. } (9. e4 Nd7 10. Ne2 Nb4 11. Bxb4 Qxb4+ 12. Nd2 Nc5 13. Nc1 O-O 14. Rb1 Bd7 15. h4 c6) 9... dxe3 10. f4 exd2+ 11. Kxd2 exf4 12. gxf4 Bf5 13. Nf3 O-O-O 14. Kd1 Rhe8 15. Ng5?! { (-20.79 → Mate in 7) Checkmate is now unavoidable. Best move was Nbd2. } (15. Nbd2 Bxd3) 15... Qe1+ 16. Kc2 Nd4+ 17. Kb2 Qb4?! { (Mate in 6 → -30.55) Lost forced checkmate sequence. Best move was Qd1. } (17... Qd1 18. Nd2 Qxd2+ 19. Ka3 Qc2 20. Rb1 Qxb1 21. Kb4 Qxb3+ 22. Ka5 Nc6#) 18. Nxh7?! { (-30.55 → Mate in 2) Checkmate is now unavoidable. Best move was Ra3. } (18. Ra3 Qe1 19. Nf3 Nxf3 20. Ka1 Nd4 21. Bg2 Qf2 22. Rc1 Qxg2 23. a5 Re1 24. Rxe1 Nc2+) 18... Qxb3+ 19. Kc1 Qc2# { Black wins by checkmate. } 0-1