[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.20"]
[Round "12"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Rodriguez, Ruben"]
[Result "0-1"]
[WhiteElo "2390"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bf4 Qb6 5. Nge2 d6 6. a4 a5 7. Be3 Nf6 8. d5 Qc7 9. h3 O-O 10. Nd4 Na6 11. Nb3 Nb4 12. Be2 Nxe4 13. Nxe4 Bf5 14. Nbd2 Nxd5 15. O-O Nxe3 16. fxe3 d5 17. Nf2 Bxb2 18. Rb1 Bg7 19. Bd3 Bc8 20. e4 f5 21. exf5 gxf5 22. c4 e5 23. cxd5 cxd5 24. Qb3 Be6 25. Nf3 Kh8 26. Rfc1 Qd6 27. Qxb7 Rfb8 28. Qc6 Qxc6 29. Rxc6 Bd7 30. Rd6 Bxa4 31. Rxb8+ Rxb8 32. Rxd5 e4 33. Rxa5 Bc6 34. Rxf5 exd3 35. Nxd3 Be4 36. Rf4 Bxd3 37. Kf2 Re8 38. g4 Re2+ 39. Kg3 Re3 40. Kh4 Kg8 41. g5 Be2 42. Nd4 Bd1 43. Nf5 Bc3 44. Nh6+ Kg7 45. Nf5+ Kg6 46. Ng3 Rxg3 47. Rc4 Be1 0-1