[Event "Rated correspondence game"] [Site "https://lichess.org/nk02a427"] [Date "2023.07.06"] [White "Schmidheiny"] [Black "wlsonb"] [Result "0-1"] [UTCDate "2023.07.06"] [UTCTime "23:15:55"] [WhiteElo "1814"] [BlackElo "1866"] [WhiteRatingDiff "-7"] [BlackRatingDiff "+37"] [Variant "Standard"] [TimeControl "-"] [ECO "B90"] [Opening "Sicilian Defense: Najdorf Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 { B90 Sicilian Defense: Najdorf Variation } 6. Qf3 g6 7. h3 Bg7 8. Be3 Nc6 9. O-O-O Bd7 10. Kb1 Rc8 11. a3? { (-0.04 → -1.41) Mistake. g4 was best. } (11. g4 Ne5 12. Qg2 Rxc3 13. bxc3 Qc7 14. f4 Nc4 15. Bxc4 Qxc4 16. g5 Nh5 17. Rd3 O-O) 11... Nxd4? { (-1.41 → 0.03) Mistake. Ne5 was best. } (11... Ne5 12. Qf4) 12. Bxd4 O-O?! { (0.09 → 0.73) Inaccuracy. e5 was best. } (12... e5 13. Be3) 13. e5? { (0.73 → -0.54) Mistake. Qe3 was best. } (13. Qe3 Rc6 14. e5 dxe5 15. Bxe5 Qb6 16. Qxb6 Rxb6 17. Be2 Rc8 18. Rhe1 Kf8 19. f4 Bf5) 13... dxe5 14. Bxe5 b5?! { (-0.42 → 0.50) Inaccuracy. Qb6 was best. } (14... Qb6 15. Qe2) 15. Nxb5?? { (0.50 → -2.50) Blunder. Qe3 was best. } (15. Qe3 Re8) 15... axb5 16. Bxb5 Qa5?? { (-2.73 → -0.79) Blunder. Rc5 was best. } (16... Rc5 17. Bxf6 Rxb5 18. Bxg7 Kxg7 19. Rhe1 Qc8 20. Qd3 Rb7 21. g4 Be6 22. Qe3 Qc6 23. b3) 17. Be2?? { (-0.79 → -7.38) Blunder. Bxd7 was best. } (17. Bxd7) 17... Qxe5 18. Rxd7 Nxd7 19. Rd1?? { (-6.99 → Mate in 1) Checkmate is now unavoidable. c3 was best. } (19. c3 Qb8 20. Rc1 Rcd8 21. Qg3 Be5 22. Qe3 Bf4 23. Qd3 Bxc1 24. Kxc1 Qa8) 19... Qxb2# { Black wins by checkmate. } 0-1