[Event "Sochi Chigorin Memorial"] [Site "Sochi"] [Date "1977.??.??"] [Round "10"] [White "Petrosian, Tigran V"] [Black "Tal, Mihail"] [Result "1/2-1/2"] [GameId "GvK2Belb"] [WhiteElo "2645"] [BlackElo "2620"] [Variant "Standard"] [TimeControl "-"] [ECO "E18"] [Opening "Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 { [%eval -0.02] } 1... Nf6 { [%eval 0.1] } 2. c4 { [%eval 0.17] } 2... e6 { [%eval 0.41] } 3. g3 { [%eval 0.14] } 3... d5 { [%eval 0.03] } 4. Bg2 { [%eval 0.13] } 4... Be7 { [%eval 0.28] } 5. O-O { [%eval 0.3] } 5... O-O { [%eval 0.46] } 6. d4 { [%eval 0.0] } 6... b6?! { (0.00 → 0.56) Inaccuracy. dxc4 was best. } { [%eval 0.56] } (6... dxc4 7. Na3 Bxa3 8. bxa3 Bd7 9. Ne5 Bc6 10. Nxc6 Nxc6 11. Bxc6) 7. Nc3 { [%eval 0.24] } 7... Bb7 { [%eval 0.25] } { E18 Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line } 8. Ne5 { [%eval 0.15] } 8... Na6?! { (0.15 → 0.73) Inaccuracy. Nbd7 was best. } { [%eval 0.73] } (8... Nbd7 9. Bf4 h6 10. cxd5 Nxd5 11. Nxd5 exd5 12. Rc1 Nxe5 13. Bxe5 c5 14. dxc5 bxc5 15. e3) 9. Bg5?! { (0.73 → 0.18) Inaccuracy. b3 was best. } { [%eval 0.18] } (9. b3 c5) 9... c5 { [%eval 0.52] } 10. Rc1 { [%eval 0.14] } 10... Ne4 { [%eval 0.23] } 11. Bxe7 { [%eval 0.18] } 11... Qxe7 { [%eval 0.56] } 12. dxc5 { [%eval 0.08] } 12... Naxc5 { [%eval 0.38] } 13. Nxe4 { [%eval 0.2] } 13... dxe4 { [%eval 0.3] } 14. b4 { [%eval 0.17] } 14... Rad8 { [%eval 0.27] } 15. Qc2 { [%eval -0.07] } 15... Qg5?! { (-0.07 → 0.67) Inaccuracy. Na6 was best. } { [%eval 0.67] } (15... Na6) 16. bxc5 { [%eval 0.62] } 16... Qxe5 { [%eval 0.63] } 17. cxb6 { [%eval 0.54] } 17... axb6 { [%eval 0.63] } 18. Rb1 { [%eval 0.46] } 18... Qa5 { [%eval 0.46] } 19. Rb5 { [%eval -0.07] } 19... Rd2 { [%eval 0.0] } 20. Qb1 { [%eval -0.07] } 20... Qxa2 { [%eval 0.0] } 21. Rxb6 { [%eval -0.08] } 21... Ba8 { [%eval 0.13] } 22. e3 { [%eval -0.08] } 22... Qxc4 { [%eval -0.08] } 23. Rb4 { [%eval -0.17] } { The game is a draw. } 1/2-1/2