[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1985.01.20"]
[Round "3"]
[White "Nunn, John DM"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2635"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 Bg4 7. dxe5 Qxd1 8. Rxd1 fxe5 9. Rd3 Bd6 10. Nbd2 b5 11. b3 Ne7 12. Bb2 Ng6 13. g3 O-O 14. Kg2 Rf6 15. h3 Bd7 16. Ng1 c5 17. Ne2 Raf8 18. Rf1 c4 19. bxc4 bxc4 20. Rf3 Rxf3 21. Nxf3 Bxh3+ 22. Kxh3 Rxf3 23. Kg2 Rf8 24. Bc3 Ne7 25. Ng1 Nc6 26. Nf3 Rb8 27. Rd1 Kf8 28. Nd2 Bb4 29. Bxb4+ Rxb4 30. c3 Ra4 31. Nf3 Ke7 32. Rd5 Rxa2 33. Nxe5 Na7 34. Nxc4 Nb5 35. Rc5 Kd7 36. Ne5+ Kc8 37. Nd3 Ra3 38. Rf5 Rxc3 39. Nc5 Kd8 40. Nxa6 Nd6 1/2-1/2