[Event "Antiwiskundeolympiade"] [Site "https://lichess.org/hssDoM00"] [Date "2022.01.19"] [White "X150808"] [Black "JohanDeWael"] [Result "0-1"] [UTCDate "2022.01.19"] [UTCTime "15:13:52"] [WhiteElo "933"] [BlackElo "1670"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+3"] [Variant "Standard"] [TimeControl "600+3"] [ECO "C29"] [Opening "Vienna Game: Vienna Gambit"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nc3 Nf6 3. f4 { White offers draw } { C29 Vienna Game: Vienna Gambit } 3... d6 4. Nf3 b6?? { (0.42 → 2.19) Blunder. Be7 was best. } (4... Be7 5. Be2 O-O 6. O-O Nbd7 7. d3 c6 8. Kh1 Re8 9. a4) 5. d3? { (2.19 → 0.77) Mistake. fxe5 was best. } (5. fxe5 dxe5 6. Nxe5 Bc5 7. Bb5+ Kf8 8. Rf1 Bd4 9. Nf3 a6) 5... Bb7?! { (0.77 → 1.59) Inaccuracy. Nc6 was best. } (5... Nc6 6. g3) 6. fxe5 dxe5 7. Nxe5 Qd4?! { (1.70 → 2.70) Inaccuracy. Bc5 was best. } (7... Bc5) 8. Nf3 Qd8 9. d4 Bb4 10. a3?? { (3.49 → 0.37) Blunder. Bb5+ was best. } (10. Bb5+ Nbd7) 10... Bxc3+ 11. bxc3 Bxe4?! { (0.00 → 0.75) Inaccuracy. Nxe4 was best. } (11... Nxe4 12. Bc4 O-O 13. O-O Nxc3 14. Qd3 Bxf3 15. Rxf3 Ne2+ 16. Qxe2 Qxd4+ 17. Rf2 Qxa1 18. Rxf7) 12. Nd2? { (0.75 → -0.65) Mistake. Bd3 was best. } (12. Bd3) 12... O-O 13. Nxe4 Nxe4 14. Bd3?? { (-0.29 → -6.92) Blunder. Qf3 was best. } (14. Qf3 Re8) 14... Nxc3?? { (-6.92 → -1.29) Blunder. Qh4+ was best. } (14... Qh4+ 15. g3) 15. Qd2?? { (-1.29 → -5.91) Blunder. Qf3 was best. } (15. Qf3 Re8+) 15... Re8+ 16. Kf2 Qf6+?? { (-7.92 → -2.91) Blunder. Re2+ was best. } (16... Re2+ 17. Qxe2 Nxe2 18. Bxe2 Qxd4+ 19. Be3 Qf6+ 20. Bf3 Nc6 21. Rad1 h6 22. Rhe1 Ne5 23. Bg5) 17. Bf5?? { (-2.91 → -14.07) Blunder. Qf4 was best. } (17. Qf4 Ne4+ 18. Kf3 Qxf4+ 19. Bxf4 Nc6 20. Be3 Nc3 21. Rhe1 Red8 22. Kg3 Nxd4 23. Bxd4 Rxd4) 17... Qxf5+ 18. Kg3?! { (-13.12 → Mate in 6) Checkmate is now unavoidable. Qf4 was best. } (18. Qf4 Qxc2+) 18... Ne4+ 19. Kh4 Nxd2 20. Bxd2 { White offers draw } 20... Re4+ 21. Kg3 Qg6+ 22. Kf2 Qf5+ 23. Kg3 Qg4+ 24. Kf2 Qe2+ 25. Kg3 Qxd2 26. Kf3 Qf4# { Black wins by checkmate. } 0-1