[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.05"]
[Round "1"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Tarjan, James Edward"]
[Result "1-0"]
[WhiteElo "2390"]
[BlackElo "2525"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Nbd7 8. O-O-O h6 9. Be3 Qc7 10. Bd3 b5 11. Qg3 b4 12. Nce2 Bb7 13. f3 O-O-O 14. Kb1 d5 15. exd5 Nxd5 16. Bd2 Nc5 17. Bc4 Qxg3 18. hxg3 Nb6 19. Bb3 a5 20. c3 e5 21. Nc2 Nxb3 22. axb3 Nd5 23. Nc1 Ba6 24. Rhe1 f6 25. c4 Ne7 26. Be3 Rxd1 27. Rxd1 Kc7 28. Bc5 Nf5 29. Bxf8 Rxf8 30. Rd5 Kb6 31. g4 Nh4 32. Rd6+ Ka7 33. Rd7+ Bb7 34. Ne3 g5 35. Nd3 Kb6 36. Nf2 Bc6 37. Rh7 Kc5 38. Kc2 Kd4 39. Kd2 a4 40. bxa4 Bxa4 41. Rb7 f5 42. Rxb4 f4 43. Nd5 Bc6 44. Nc7 Kc5 45. Na6+ Kd6 46. Rb6 Nxg2 47. Ne4+ Kd7 48. Nec5+ Kd6 49. b4 Nh4 50. Ne4+ Kd7 51. Nac5+ Kc7 52. Rxc6+ Kxc6 53. b5+ Kc7 54. Ne6+ Kb6 55. Nxf8 Nxf3+ 56. Kc3 h5 57. gxh5 g4 58. h6 g3 59. h7 g2 60. h8=Q g1=Q 61. Qf6+ Ka7 62. Qa6+ Kb8 63. Nd7+ Kc7 64. Qd6+ Kd8 65. Nxe5+ 1-0