[Event "Interpolis-03"]
[Site "Tilburg"]
[Date "1979.11.05"]
[Round "4"]
[White "Portisch, Lajos"]
[Black "Karpov, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2640"]
[BlackElo "2705"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. Nc3 O-O 7. Re1 d5 8. cxd5 exd5 9. d4 c5 10. Be3 Na6 11. Rc1 Nc7 12. dxc5 bxc5 13. Na4 d4 14. Bg5 Ne6 15. Bxf6 Bxf6 16. Nxd4 Bxd4 17. Bxb7 Rb8 18. Bg2 Bxb2 19. Rb1 Ba3 20. Qc2 Nd4 21. Qc4 Bb4 22. Rf1 Qa5 23. Nb2 Ba3 24. Nd3 Nxe2+ 25. Kh1 Qc3 26. Bd5 Qxc4 27. Bxc4 Nc3 28. Rb3 Bb4 29. Nxc5 1/2-1/2