[Event "Olympiad-19 Preliminaries A"]
[Site "Siegen"]
[Date "1970.09.09"]
[Round "5"]
[White "Toran Albero, Roman"]
[Black "Yabra, Frederico"]
[Result "1-0"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 Nc6 8. e3 b6 9. Nc3 Bb7 10. cxd5 exd5 11. d4 Rb8 12. Rc1 cxd4 13. Nxd4 Nxd4 14. Qxd4 Bc5 15. Qh4 Ne4 16. Qg4 f5 17. Qe2 Nxc3 18. Bxc3 Qe7 19. Qd2 Rbd8 20. b4 d4 21. bxc5 Bxg2 22. Kxg2 dxc3 23. Qxc3 bxc5 24. Qc4+ Kh8 25. Qxc5 Qf7 26. Qc4 Qb7+ 27. Qc6 Qb4 28. Rfd1 h6 29. Rxd8 Rxd8 30. Rc4 Qb1 31. Rc2 Kh7 32. e4 fxe4 33. Qxe4+ Kh8 34. h4 Qb8 35. a4 Re8 36. Qc6 a5 37. Rc5 Qd8 38. Rd5 Qb8 39. Rxa5 Rf8 40. Rc5 Qb2 41. Rc2 Qb4 42. Re2 Qg4 43. Re8 1-0