[Event "Olympiad-19 Preliminaries B"]
[Site "Siegen"]
[Date "1970.09.05"]
[Round "1"]
[White "Ardiansyah, Haji"]
[Black "Keene, Raymond"]
[Result "1/2-1/2"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 Nf6 5. Qe2 c6 6. O-O O-O 7. Bb3 a5 8. c3 Bg4 9. h3 Bxf3 10. Qxf3 e6 11. Bg5 Nbd7 12. Nd2 Qc7 13. Qe3 a4 14. Bc2 c5 15. Rac1 b5 16. Nf3 Rfc8 17. Rfd1 a3 18. b3 cxd4 19. Nxd4 Qb6 20. Qe2 b4 21. c4 d5 22. Nb5 dxc4 23. Nd6 Rc6 24. Nxc4 Qc7 25. Bd2 Rb8 26. Bb1 Bf8 27. Qf3 Rc8 28. Bg5 e5 29. Rc2 h6 30. Be3 Nc5 31. Rcd2 Kg7 32. g4 Be7 33. Kg2 Ne6 34. h4 Rd8 35. Rxd8 Bxd8 36. Qg3 Nf4+ 37. Bxf4 exf4 38. Qf3 Be7 39. e5 Ne8 40. Qxf4 Bxh4 41. Qd4 Qe7 42. f4 Qc5 43. Qxc5 Rxc5 44. f5 h5 45. f6+ Nxf6 46. exf6+ Bxf6 47. gxh5 Rg5+ 48. Kf3 Rxh5 49. Rd7 Kf8 50. Rb7 Rh1 51. Bd3 Rh3+ 52. Ke4 Rh4+ 53. Ke3 Rh3+ 54. Ke2 Rh2+ 55. Kf3 Rh3+ 1/2-1/2