[Event "Olympiad-27"]
[Site "Dubai"]
[Date "1986.11.18"]
[Round "4"]
[White "Abdullah, Mashaal"]
[Black "Sosa, Leonardo"]
[Result "1/2-1/2"]

1. e4 d6 2. d4 g6 3. Nc3 Nf6 4. g3 Bg7 5. Bg2 O-O 6. h3 Nbd7 7. Nge2 e5 8. Be3 c6 9. a4 Qc7 10. O-O a5 11. Qd2 Nb6 12. b3 Be6 13. f4 Rad8 14. Rad1 exd4 15. Bxd4 Bc8 16. g4 d5 17. Be5 Qe7 18. Qe3 Nbd7 19. Bc7 Rde8 20. e5 Nc5 21. Bd6 Qxd6 22. Qg3 Nfe4 23. Bxe4 Nxe4 24. Nxe4 Qb4 25. Nd6 Re6 26. Nd4 Qc5 27. Qf2 Rxd6 28. exd6 Qxd6 29. Rfe1 Bd7 30. Ne2 Bf6 31. c4 Qb4 32. Qg3 Qe7 33. g5 Bg7 34. cxd5 cxd5 35. Rxd5 Bc6 36. Rdd1 Qe4 37. Kh2 Qc2 38. Qd3 Qc5 39. Qg3 Qc2 40. Qd3 Qc5 41. Qg3 1/2-1/2