[Event "Olympiad-27"]
[Site "Dubai"]
[Date "1986.11.27"]
[Round "11"]
[White "Guerra, Jose Luis"]
[Black "Orr, Mark JL"]
[Result "1/2-1/2"]
[WhiteElo "2245"]
[BlackElo "2275"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 Nb6 10. d5 Nd4 11. Bb5+ Nd7 12. Qa4 Nxb5 13. Qxb5 g6 14. d6 e6 15. O-O Bg7 16. Bg5 a6 17. Bxd8 axb5 18. Be7 Bxc3 19. bxc3 Nb6 20. Rfb1 Ra5 21. a4 Kd7 22. Rxb5 Rxb5 23. axb5 Nd5 24. Ra7 Rb8 25. c4 Nxe7 26. dxe7 Kxe7 27. c5 Kd7 28. Kf1 Ke8 29. Ke2 Rc8 30. Rxb7 Rxc5 31. b6 Rb5 32. Kd3 Rb2 33. Kc4 Rxf2 34. Ra7 Rb2 35. Kc5 Rc2+ 36. Kd6 Rd2+ 37. Ke5 Rb2 38. b7 Kd8 39. Kd6 Rd2+ 40. Kc6 Rc2+ 41. Kd6 Rd2+ 42. Kc6 1/2-1/2