[Event "Montreal International"]
[Site "Montreal"]
[Date "1979.04.18"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Tal, Mihail"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2615"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5 7. Bf4 Bd6 8. Bg3 O-O 9. e3 c5 10. Bd3 Re8 11. O-O Bxg3 12. hxg3 Nbd7 13. dxc5 bxc5 14. b4 d4 15. exd4 Bxf3 16. Qxf3 cxd4 17. Nd5 Nxd5 18. Qxd5 Ne5 19. Qxd8 Rexd8 20. Rad1 Kf8 21. Rfe1 1/2-1/2