[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.11"]
[Round "6"]
[White "Larsen, Bent"]
[Black "Trois, Francisco R Torres"]
[Result "1/2-1/2"]
[WhiteElo "2620"]
[BlackElo "2415"]

1. g3 d5 2. Nf3 Nf6 3. Bg2 c6 4. O-O Bg4 5. c4 e6 6. b3 Nbd7 7. Bb2 h6 8. cxd5 cxd5 9. Nc3 Be7 10. d4 O-O 11. Ne5 Bf5 12. Rc1 Rc8 13. e3 Qa5 14. a3 Nxe5 15. dxe5 Ne4 16. Nxe4 Rxc1 17. Qxc1 Bxe4 18. Bxe4 dxe4 19. b4 Qb5 20. Qc7 Bd8 21. Qc2 a5 22. bxa5 Bxa5 23. Rd1 Rd8 24. Bd4 Qd5 25. Rb1 b5 26. Kg2 Rb8 27. h4 Bb6 28. Bxb6 Rxb6 29. Qc7 Rc6 30. Qe7 Rc8 31. Qd6 Qxd6 32. exd6 Rd8 33. Rxb5 Rxd6 34. a4 f5 35. a5 Kf7 36. h5 Rd2 37. a6 Ra2 38. Rb7+ Kf6 39. a7 g6 40. hxg6 Kxg6 41. Kh3 1/2-1/2