[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1978.01.28"]
[Round "7"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2665"]
[BlackElo "2630"]
1. c4 c5 2. Nf3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc6 6. Nc3 e6 7. O-O Be7 8. d4 O-O 9. e4 Ndb4 10. a3 cxd4 11. axb4 dxc3 12. bxc3 Qc7 13. Be3 b6 14. Qe2 e5 15. Nd2 Be6 16. f4 f6 17. f5 Bf7 18. Rfc1 Rad8 19. Bf2 a5 20. Nc4 Rb8 21. Ne3 axb4 22. Nd5 Qd6 23. Qb5 Rfc8 24. cxb4 Bxd5 25. exd5 Nd4 26. Bxd4 exd4 27. Qe2 Rc3 28. Rab1 Re3 29. Qc4 d3 30. Rd1 b5 31. Qd4 Bd8 32. Kh1 Bb6 33. Qc3 Qe5 34. Qc6 Qd4 35. d6 Re5 36. Qf3 Rbe8 37. d7 R8e7 38. d8=Q+ Qxd8 39. Rxd3 Qc8 40. Rf1 h6 1/2-1/2