[Event "National tournament NM norm"] [Site "Dnipro"] [Date "2020.08.21"] [Round "8"] [White "Babiy, Olga"] [Black "Vakulenko, Oleksandr"] [Result "1-0"] [WhiteElo "2228"] [BlackElo "2308"] [Annotator "Olga Babiy"] [Variant "Standard"] [ECO "C70"] [Opening "Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred"] [Source "https://lichess.org/study/l40uKG8C/3NPndTE2"] [Orientation "white"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 5. c3 Bg7 6. d4 exd4 7. cxd4 b5 8. Bb3 d6 (8... Nge7 9. d5 Na5 10. Bd2 Nxb3 11. Qxb3 (11. axb3 Bxb2 12. Bc3 Bxc3+ 13. Nxc3 Rb8 14. h4 { 1-0 (31) Maze,S (2565)-Thuesen,M (2111) Helsingor DEN 2019 }) 11... c5!? (11... d6 12. Bc3 f6 13. O-O $16) 12. Bc3 f6 13. a3 d6) 9. h3 (9. Ng5!? { would have been more decisive, using the fact that the f8-knight would be forced to the more passive h6-square: } 9... Nh6 10. Bd5 Bd7 11. h3 O-O 12. Nf3 Rb8 13. Bg5 Qe8 14. O-O Kh8 15. Re1 Ng8 16. Nc3 h6 17. Bf4 Qd8 18. Rc1 g5 19. Bh2 Nce7 20. Bb3 a5 21. e5 $36 { and White enjoyed his powerful position in 1-0 (39) Matviishen,V (2501)-Ashwath,R (2328) Suwalki POL 2019. }) 9... Nge7 10. d5 $146 { A typical move, but a novelty in this particular position. } (10. O-O O-O 11. Nc3 Na5 12. Bc2 c5 { and here white has a lot of moves to choose }) 10... Na5 (10... Ne5 11. Nxe5 Bxe5 (11... dxe5?! 12. a4 Bd7 13. Be3 O-O 14. O-O $14) 12. O-O O-O 13. Nd2 Bb7 14. Nf3 Bg7 15. Re1 $14) 11. Bd2 c5 (11... Nxb3 12. axb3 Bxb2 13. Bc3!?) 12. dxc6 { I was ready to sacrifice the Exchange to get counterplay on the dark squares. } (12. Bc3 f6 { Black has activity on the queenside }) 12... Bxb2?! (12... Nxb3 13. axb3 Nxc6) 13. Nc3 { Now Black is forced to exchange his dark squared bishop. } 13... Nxb3 14. axb3 Bxa1 15. Qxa1 $44 f6? { More playable was returning the exchange (but consolidating king safety) with } (15... O-O 16. Bh6 Nxc6 (16... Re8?? 17. c7! (17. Nd5 Nf5) 17... Qxc7 18. Nd5 $18) 17. Bxf8 (17. Nd5 Ne5 18. Nxe5 dxe5 19. Qxe5 f6 $15) 17... Qxf8 18. Nd5 Ne5 19. Nxe5 dxe5 20. Qxe5 Be6 21. Nf6+ Kh8 22. Nd7+ (22. Ne8+ Kg8 23. Nf6+ Kh8) 22... Qg7 { Black is safe }) 16. Nd5 $16 Nxd5 17. exd5 { [%csl Gc6,Gd5] } 17... Qe7+ 18. Kd1! { I want to bring my rook into attack as fast as possible, and it is important to keep the e-file open. My king is very safe on d1! There's no need to give my opponent the time to develop with } (18. Be3 O-O 19. O-O Bf5 { And Black is not worse because his bishop is free. }) 18... O-O 19. Re1 Qf7 20. Qd4 $16 g5? { Black's position is difficult to defend, but this move loses quickly } (20... Ra7 { doesn't work: } 21. Bh6 Rd8 22. Nd2 Re7 23. Ne4 Re5 24. f4 Rxd5 25. Nxf6+ Qxf6 26. Qxd5+ $18) (20... Bf5 21. g4 $18 { and bishop is forced to return back }) (20... a5!? { is an active chance to fight: } 21. Bh6 (21. Bc3?! { is natural, trying to bring the knight to e4, but it gives Black counterplay } 21... g5 22. Nxg5 Qh5+ 23. Nf3 b4 24. Bb2 a4 25. bxa4 Ra5 $132) 21... Rd8 22. Nd2 { [%csl Ge4,Rf6][%cal Rd2e4] }) 21. Nxg5 $18 fxg5 22. Bc3 { [#] White is a rook down, but her attack is so strong that Black cannot defend his King without material losses. This position shows how dangerous an attack with opposite colored bishops can be. } 22... Qg6 23. Re7 Qb1+ 24. Kd2 Qa2+ 25. Kc1 (25. Bb2?? { loses to } 25... Rxf2+) 25... Qa3+ 26. Bb2 { 1-0 White wins. } (26... Qc5+ 27. Qxc5 dxc5 28. Rg7+ Kh8 29. Rg6+ Rf6 30. Bxf6#) 1-0