[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1977.01.18"]
[Round "4"]
[White "Timman, Jan H"]
[Black "Sigurjonsson, Gudmundur"]
[Result "1/2-1/2"]
[WhiteElo "2590"]
[BlackElo "2520"]
1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 O-O 9. Be3 Qc7 10. O-O Nbd7 11. h3 a6 12. a4 b6 13. Qf2 Bb7 14. f5 e6 15. Qh4 Rae8 16. Bh6 Qc5+ 17. Kh1 Qb4 18. Ra3 exf5 19. Na2 Qc5 20. Rc3 Qa5 21. Bxg7 Kxg7 22. exf5 Be4 23. fxg6 hxg6 24. Rc7 Bxd3 25. cxd3 Rc8 26. Rxc8 Rxc8 27. Nc3 Qf5 28. Ne4 Nxe4 29. dxe4 Qf6 30. Qg4 Rc7 31. Rd1 1/2-1/2