[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1968.01.24"]
[Round "12"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Portisch, Lajos"]
[Result "0-1"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. Re1 g5 7. d4 g4 8. Bxc6 Bxc6 9. Nfd2 Qh4 10. Nc4 Bg7 11. dxe5 dxe5 12. Nc3 Rd8 13. Nd5 Bxd5 14. exd5 g3 15. hxg3 Qxc4 16. b3 Qxd5 17. Qg4 Bf6 18. Ba3 Ne7 19. Re4 Qe6 20. Qf3 O-O 21. Rae1 Bg7 22. Rh4 Ng6 23. Rc4 Rfe8 24. Qxb7 Rd7 25. Rc6 Qf5 26. Bc1 e4 27. Qxa6 Ne5 28. Rc3 Ng4 29. Rf3 Qh5 30. Rf4 Qh2+ 31. Kf1 e3 32. Bxe3 Qh1+ 0-1