[Event "Interzonal-11a"]
[Site "Riga"]
[Date "1979.09.18"]
[Round "10"]
[White "Mednis, Edmar John"]
[Black "Trois, Francisco R Torres"]
[Result "1/2-1/2"]
[WhiteElo "2510"]
[BlackElo "2415"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. Be3 exd4 11. cxd4 Na5 12. Bc2 c5 13. dxc5 dxc5 14. Nbd2 Nd7 15. Bf4 Re8 16. h3 Bh5 17. e5 Nf8 18. Be4 Rc8 19. Qc2 Nc6 20. a3 Bg6 21. Rad1 Qc7 22. Bxg6 hxg6 23. Ne4 Ne6 24. Bg3 Ncd4 25. Qd3 Red8 26. Nd6 Nf5 27. Bh2 c4 28. Qd5 Qc6 29. g4 Qxd5 30. Rxd5 Nh4 31. Nxh4 Bxh4 32. Bg3 Bxg3 33. Nxc8 Bxf2+ 34. Kxf2 Rxc8 35. Ke3 g5 36. Rd6 Rc5 37. Rxa6 Rxe5+ 38. Kd2 Rd5+ 39. Kc2 Rd3 40. Rexe6 fxe6 41. Rxe6 Rxh3 42. Re5 Rb3 43. Rc5 Kf7 44. a4 bxa4 45. Rxc4 Rf3 46. Rxa4 Kf6 47. Rc4 Ke5 48. b4 g6 49. Rc5+ Kf4 50. Rc4+ Ke5 51. b5 Kd5 52. Rc3 Rxc3+ 53. Kxc3 Kc5 54. Kd3 Kxb5 55. Kd4 Kc6 56. Ke5 Kd7 57. Kf6 Ke8 58. Ke6 Kf8 59. Kf6 Kg8 60. Kxg6 Kf8 61. Kxg5 Kg7 1/2-1/2