[Event "Candidates qf Kortschnoj-Portisch+4-1=4"]
[Site "Bad Kissingen"]
[Date "1983.04.09"]
[Round "7"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2620"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. Ndb5 d5 7. Bf4 e5 8. cxd5 exf4 9. dxc6 bxc6 10. Qxd8+ Kxd8 11. Rd1+ Bd7 12. Nd6 Bxd6 13. Rxd6 Rb8 14. b3 Rb4 15. g3 Ke7 16. Rd2 c5 17. e3 Bc6 18. Rg1 f3 19. Kd1 Rhb8 20. Kc2 Be4+ 21. Kc1 a5 22. g4 g5 23. Rb2 Bc6 24. Bc4 Rd8 25. Rd2 Rbb8 26. Bd3 Rb4 27. Bc4 Rbb8 28. Bd3 Rb4 1/2-1/2