[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.09"]
[Round "4"]
[White "Ljubojevic, Ljubomir"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[WhiteElo "2590"]
[BlackElo "2390"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Bxf6 gxf6 11. Nd5 f5 12. Bd3 Be6 13. c4 Qa5+ 14. Kf1 b4 15. exf5 Bxd5 16. cxd5 Qxd5 17. Nc4 Rg8 18. Ne3 Qd4 19. Rc1 e4 20. Bc2 Qxd1+ 21. Rxd1 Bg7 22. Ba4 Kd7 23. Rc1 Rgc8 24. Nc4 Bh6 25. Nb6+ Kd8 26. Rd1 Kc7 27. Nxa8+ Rxa8 28. Ke2 Ne7 29. Rd4 d5 30. f6 Ng6 31. g3 Rd8 32. Rhd1 1-0