[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.10.25"]
[Round "1"]
[White "Timman, Jan H"]
[Black "Estrada Degrandi, Walter"]
[Result "1-0"]
[WhiteElo "2585"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. e3 Bg7 6. Be2 O-O 7. O-O dxc4 8. Bxc4 Bg4 9. h3 Bxf3 10. Qxf3 Nfd7 11. Rd1 Nb6 12. Bb3 N8d7 13. e4 e6 14. Be3 Qe7 15. Rac1 a5 16. a3 Rad8 17. Qe2 Kh8 18. d5 exd5 19. exd5 Nxd5 20. Nxd5 cxd5 21. Rxd5 b6 22. Rc7 Qe8 23. Ba4 Qe4 24. Bc6 Ne5 25. Rxd8 Nxc6 26. Rxf8+ Bxf8 27. Rc8 1-0