[Event "Olympiad-27"]
[Site "Dubai"]
[Date "1986.11.19"]
[Round "5"]
[White "Mariotti, Sergio"]
[Black "Batres O, Francisco"]
[Result "1-0"]
[WhiteElo "2435"]
[BlackElo "2245"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 Be7 7. Bg2 O-O 8. O-O a6 9. a4 Qc7 10. a5 Bd7 11. Be3 Nc6 12. Nb3 Ne5 13. Bb6 Qc8 14. Bd4 Nc4 15. Na4 e5 16. Bc3 Qe8 17. Nb6 Nxb6 18. axb6 Bc6 19. Nd2 Bb5 20. Re1 Nd7 21. Ba5 Rc8 22. Bh3 Rd8 23. c4 Bc6 24. Nb1 g6 25. Nc3 f5 26. b4 Nf6 27. exf5 Bd7 28. Bg2 Bc8 29. fxg6 Qxg6 30. Nd5 Nxd5 31. Bxd5+ Kh8 32. b5 axb5 33. cxb5 Bg5 34. Bd2 Bxd2 35. Qxd2 Rf4 36. Ra8 Rd4 37. Qc3 Rxd5 38. Rxc8 Qe8 39. Rxd8 Qxd8 40. Qc7 Qa8 41. Qf7 Rxb5 42. Qf6+ Kg8 43. Re4 Qc8 44. Qxd6 Qc1+ 45. Kg2 Qc6 46. Qd8+ Kf7 47. Qh4 h6 48. Qh5+ Qg6 49. Qf3+ Qf6 50. Qh5+ Qg6 51. Qe2 Qxb6 1-0