[Event "Olympiad-19 Preliminaries A"]
[Site "Siegen"]
[Date "1970.09.08"]
[Round "4"]
[White "Lagha, Khelil"]
[Black "Papapostolou, Christos"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nbd2 c5 8. b3 d6 9. Bb2 Qc7 10. Qc2 cxd4 11. Nxd4 Bxg2 12. Kxg2 Nc6 13. Rad1 Nxd4 14. Bxd4 e5 15. Bb2 b5 16. Qf5 Rac8 17. Kg1 Qb7 18. Rc1 g6 19. Qd3 a6 20. e3 h5 21. h4 Rfd8 22. cxb5 axb5 23. b4 Qd5 24. Qxd5 Nxd5 25. a3 Nb6 26. Rxc8 Rxc8 27. Rc1 Rxc1+ 28. Bxc1 f6 29. e4 Kf7 30. Nb1 Na4 31. Be3 Ke6 32. f3 f5 33. Kf1 d5 34. exd5+ Kxd5 35. Nd2 f4 36. Bf2 fxg3 37. Bxg3 g5 38. hxg5 Bxg5 39. Ne4 Bc1 40. Nf6+ Kd4 41. Nxh5 Bxa3 42. Bf2+ Kd3 43. Bg3 Bb2 44. Nf6 Nb6 45. Bf2 Bd4 46. Be1 Nc4 47. Bf2 Nd2+ 48. Kg2 Ke2 49. Bxd4 exd4 50. Nd5 Nb1 51. Nf4+ Kd2 52. Kf2 Nc3 53. Ne6 Nd1+ 54. Kf1 Ne3+ 55. Kf2 Nf5 56. Nc7 Nd6 57. f4 Kc3 58. f5 Kxb4 59. f6 Kc4 60. Na8 Ne4+ 61. Ke2 Nxf6 62. Kd2 Nd5 0-1