[Event "2023 Spring Marathon"] [Site "https://lichess.org/A3Kc1CFY"] [Date "2023.04.15"] [White "DEMENBAN"] [Black "CYCLONE_20"] [Result "1-0"] [UTCDate "2023.04.15"] [UTCTime "06:46:35"] [WhiteElo "2041"] [BlackElo "2392"] [WhiteRatingDiff "+38"] [BlackRatingDiff "-12"] [Variant "Standard"] [TimeControl "120+0"] [ECO "B92"] [Opening "Sicilian Defense: Najdorf Variation, Opocensky Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 { B92 Sicilian Defense: Najdorf Variation, Opocensky Variation } e5 7. Nb3 Be7 8. a4 O-O 9. Be3 b6 10. a5 b5 11. f3 Bb7 12. g4?! { (-0.04 → -0.61) Inaccuracy. Qd2 was best. } (12. Qd2 Nbd7) 12... Nbd7 13. g5 Nh5 14. h4 h6?! { (-0.27 → 0.65) Inaccuracy. f5 was best. } (14... f5) 15. Nd5? { (0.65 → -0.83) Mistake. Qd2 was best. } (15. Qd2 Nc5 16. O-O-O Nxb3+ 17. cxb3 Qxa5 18. Kb1 g6 19. Nd5 Qd8 20. Bb6 Qd7 21. Nxe7+ Qxe7) 15... Bxd5 16. Qxd5 Ng3? { (-0.75 → 0.59) Mistake. hxg5 was best. } (16... hxg5 17. hxg5 Bxg5 18. Qd2 Bxe3 19. Qxe3 Nf4 20. O-O-O Qc7 21. Bf1 Rfc8 22. Rd2 Nf6 23. Qg1) 17. Rh3 Nxe2 18. Kxe2 hxg5?? { (0.21 → 5.66) Blunder. Qc8 was best. } (18... Qc8) 19. hxg5 Bxg5 20. Rah1 g6?? { (5.89 → Mate in 3) Checkmate is now unavoidable. Bh4 was best. } (20... Bh4 21. Qxd6 Re8 22. Rxh4 Qxh4 23. Rxh4 Nf8 24. Rh1 Re6 25. Qd5 Ree8 26. Nc5 Rad8 27. Qxd8) 21. Rh8+ Kg7 22. R1h7+ Kf6 23. Qxd6# { White wins by checkmate. } 1-0