[Event "Montreal International"]
[Site "Montreal"]
[Date "1979.04.16"]
[Round "5"]
[White "Portisch, Lajos"]
[Black "Karpov, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2705"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 exd5 7. Bf4 Be7 8. e3 O-O 9. Be2 c5 10. Ne5 Nc6 11. O-O cxd4 12. exd4 a6 13. Rc1 Rc8 14. Na4 Nxe5 15. Rxc8 Bxc8 16. Bxe5 Nd7 17. Bg3 1/2-1/2