[Event "Riga op"] [Site "Riga"] [Date "1986.??.??"] [Round "?"] [White "Tal, Mihail"] [Black "Oll, Lembit"] [Result "1-0"] [WhiteElo "2620"] [BlackElo "2405"] [Variant "Standard"] [TimeControl "-"] [ECO "B17"] [Opening "Caro-Kann Defense: Karpov Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 { B17 Caro-Kann Defense: Karpov Variation } 5. Bd3 Ngf6 6. Ng5 h6 7. Ne6 Qa5+ 8. Bd2 Qb6 9. Nf3 fxe6 10. Bg6+ Kd8 11. O-O c5?! { (0.52 → 1.65) Inaccuracy. a5 was best. } (11... a5 12. Re1) 12. c4 cxd4?! { (1.44 → 2.68) Inaccuracy. e5 was best. } (12... e5 13. dxe5) 13. Nxd4 e5? { (2.70 → 5.06) Mistake. Qxd4 was best. } (13... Qxd4 14. Ba5+ Qb6 15. Bxb6+ axb6 16. Re1 e5 17. Rxe5 Kc7 18. Qd4 Kb8 19. Re6 Nc5 20. Qf4+) 14. c5 Nxc5 15. Ba5 exd4 16. Qxd4+ Ncd7 17. Bxb6+ axb6 18. Rac1? { (5.04 → 2.88) Mistake. Rfd1 was best. } (18. Rfd1 Ra6 19. Rac1 e6 20. Qc3 Bc5 21. b4 Ke7 22. bxc5 bxc5 23. Qg3 Rg8 24. a4 Rc6) 18... e5?! { (2.88 → 3.95) Inaccuracy. e6 was best. } (18... e6 19. b4 Nd5 20. Rfd1 Bd6 21. Bf7 N7f6 22. Rxc8+ Ke7 23. Rxh8 Rxh8 24. Bg6 Bxb4 25. Qc4) 19. Qc4 Bc5 20. Rfd1 Rf8?! { (3.79 → 5.27) Inaccuracy. Ne8 was best. } (20... Ne8) 21. b4 Bd4? { (5.03 → 12.63) Mistake. Ke7 was best. } (21... Ke7) 22. Rxd4 { Black resigns. } 1-0