[Event "La Catalana: Naidisch (GM) - Kopylov (IM)"] [Site "https://lichess.org/study/vpevN1wM/Ps6BPiYH"] [Date "2022.07.04"] [White "?"] [Black "?"] [Result "*"] [UTCDate "2021.11.21"] [UTCTime "15:59:20"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "E09"] [Opening "Catalan Opening: Closed, Main Line"] [Termination "Unterminated"] [Annotator "lichess.org"] 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Qc2 b6 8. Nbd2 Bb7 9. e4 Nbd7 { E09 Catalan Opening: Closed, Main Line } 10. e5 Ne8 11. cxd5 cxd5 12. Re1 Qc8 13. Qd1 Qc6 14. Nf1 Rc8 15. Ne3 b5 16. h4 Nb6 17. b3 b4 18. Bd2 Nc7 19. Rc1 Qd7 20. Ng5 Ba6?! { (1.57 → 2.43) Inaccuracy. Nb5 was best. } (20... Nb5) 21. Ng4 Nb5?? { (2.16 → 5.50) Blunder. Bd3 was best. } (21... Bd3 22. Bf4) 22. Nf6+ gxf6 23. exf6 Bxf6?? { (2.78 → 9.77) Blunder. Rxc1 was best. } (23... Rxc1 24. Bxc1) 24. Qh5 h6 25. Qxh6 Bxg5 26. Qxg5+ Kh7 27. Rxc8 Bxc8 28. Qh5+ Kg8 29. Bh6 f5 30. Qg6+ Kh8 31. Bxf8 *