[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1985.01.23"]
[Round "5"]
[White "Ree, Hans"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2635"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Qe2 b5 8. Bb3 Bb7 9. Nc3 Nbd7 10. Rd1 Qb6 11. d5 Nxd5 12. Bxd5 Bxd5 13. Nxd5 exd5 14. Rxd5 Be7 15. e4 Rd8 16. Bg5 Bxg5 17. Nxg5 h6 18. Nf3 O-O 19. Rad1 Nf6 20. Rxd8 Rxd8 21. Rxd8+ Qxd8 22. h3 Qd7 23. e5 Nd5 24. Qe4 Nb6 25. Qe3 Qd1+ 26. Kh2 Qd5 27. Qa3 Na4 28. b3 Qd3 29. Qc1 Nc3 30. Qa3 b4 31. Qa5 Ne4 32. Qb6 Qd5 33. Qxa6 Nxf2 34. Qc8+ Kh7 35. Qf5+ g6 36. Qc2 Ne4 37. Qb2 Kg8 38. Kg1 Ng3 39. Qd2 Qe4 40. Qxh6 Qb1+ 41. Kh2 Nf1+ 42. Kg1 Ng3+ 1/2-1/2