lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/BsHjHHwJ"] [Date "2021.02.23"] [Round "-"] [White "Stefan_Vasilis"] [Black "lion26"] [Result "0-1"] [UTCDate "2021.02.23"] [UTCTime "17:22:20"] [WhiteElo "1112"] [BlackElo "1713"] [WhiteRatingDiff "-1"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Van't Kruijs Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e3 { A00 Van't Kruijs Opening } e5 2. Qf3? { (0.41 → -0.83) Mistake. Best move was d4. } (2. d4 exd4 3. exd4 d5 4. Nf3 Nf6 5. Bd3 Bd6 6. Qe2+ Be6) 2... d5 3. Bb5+? { (-0.72 → -2.15) Mistake. Best move was d4. } (3. d4 Nc6 4. Qd1 Bd6 5. Bb5 exd4 6. exd4 Nf6 7. Nf3 O-O) 3... Nc6? { (-2.15 → -0.60) Mistake. Best move was c6. } (3... c6 4. Bf1 Bd6 5. Qd1 Nh6 6. d3 O-O 7. Nf3 f5 8. Be2 Nd7 9. O-O e4 10. Nd4) 4. Bxc6+?! { (-0.60 → -1.10) Inaccuracy. Best move was Qg3. } (4. Qg3) 4... bxc6 5. d4?! { (-0.89 → -1.58) Inaccuracy. Best move was Qg3. } (5. Qg3 e4 6. b3 Be7 7. Ba3 c5 8. c4 Nf6 9. cxd5 Nxd5 10. Ne2 O-O 11. Bb2 Bf6) 5... e4 6. Qe2 Nf6?! { (-1.59 → -0.99) Inaccuracy. Best move was Qg5. } (6... Qg5) 7. Bd2?! { (-0.99 → -1.83) Inaccuracy. Best move was Nc3. } (7. Nc3) 7... g6? { (-1.83 → -0.74) Mistake. Best move was Bd6. } (7... Bd6 8. Nc3) 8. Nh3?! { (-0.74 → -1.72) Inaccuracy. Best move was Nc3. } (8. Nc3) 8... Bg7? { (-1.72 → -0.72) Mistake. Best move was c5. } (8... c5 9. dxc5 c6 10. Bc3 Bxc5 11. Nd2 a5 12. Nb3 Bb6 13. Nf4 O-O 14. Qd2 a4 15. Nd4) 9. Ng5? { (-0.72 → -2.37) Mistake. Best move was Nf4. } (9. Nf4 O-O) 9... h6?! { (-2.37 → -1.67) Inaccuracy. Best move was O-O. } (9... O-O 10. Nh3 c5 11. dxc5 Bg4 12. Qa6 d4 13. exd4 Qxd4 14. O-O Bxh3 15. gxh3 Nd5 16. Bc3) 10. f3?? { (-1.67 → -7.24) Blunder. Best move was Nh3. } (10. Nh3 O-O) 10... hxg5 11. fxe4? { (-6.62 → -7.91) Mistake. Best move was Nc3. } (11. Nc3 exf3) 11... Nxe4 12. Bc3? { (-7.83 → -11.62) Mistake. Best move was Rg1. } (12. Rg1 Rb8) 12... O-O?? { (-11.62 → -6.92) Blunder. Best move was Ng3. } (12... Ng3) 13. Bb4? { (-6.92 → -9.01) Mistake. Best move was Nd2. } (13. Nd2) 13... Re8 14. Qf3? { (-8.80 → -14.36) Mistake. Best move was O-O. } (14. O-O a5) 14... g4 15. Qd1 Qf6 16. h3?! { (-13.03 → Mate in 1) Checkmate is now unavoidable. Best move was Qe2. } (16. Qe2 Qh4+ 17. Kd1 Nf2+ 18. Kc1 Nxh1 19. g3 Qf6 20. Bd2 Qf2 21. Qxf2 Nxf2 22. Nc3 Bh6) 16... Nf2?! { (Mate in 1 → -14.73) Lost forced checkmate sequence. Best move was Qf2#. } (16... Qf2#) 17. Qe2 Nxh1 18. hxg4 Ng3 19. Qf3?! { (-28.58 → Mate in 9) Checkmate is now unavoidable. Best move was Be7. } (19. Be7) 19... Rxe3+ 20. Qxe3 Qf1+ 21. Kd2 Qxg2+?! { (Mate in 7 → -23.26) Lost forced checkmate sequence. Best move was Bh6. } (21... Bh6 22. c4 Bxg4 23. Nc3 Qf2+ 24. Kd3 Bf5+ 25. Ne4 Qxe3+ 26. Kc2 Bxe4+ 27. Kd1 Qe2#) 22. Kc1 Bxg4 23. Qe7?! { (-19.11 → Mate in 3) Checkmate is now unavoidable. Best move was b3. } (23. b3 Ne2+) 23... Qf1+?! { (Mate in 3 → Mate in 11) Not the best checkmate sequence. Best move was Bh6+. } (23... Bh6+ 24. Qg5 Bxg5+ 25. Nd2 Qf1#) 24. Kd2 Bh6+ 25. Kc3 Qc4# { Black wins by checkmate. } 0-1