[Event "Olympiad-19 Preliminaries C"]
[Site "Siegen"]
[Date "1970.09.08"]
[Round "4"]
[White "Acevedo, Armando"]
[Black "Fischer, Robert James"]
[Result "0-1"]

1. d4 Nf6 2. Nf3 c5 3. c3 g6 4. g3 b6 5. Bg2 Bb7 6. O-O Bg7 7. Nbd2 O-O 8. Re1 d5 9. Ne5
Nc6 10. Ndf3 Rc8 11. Nxc6 Bxc6 12. Bh3 Bd7 13. Bf1 Bc6 14. Ne5 Bb7 15. a4 Ne4 16. f3 Nd6
17. e3 Qc7 18. a5 f6 19. axb6 axb6 20. Nd3 e5 21. Nf2 e4 22. f4 Ra8 23. Bd2 Rxa1 24. Qxa1
Ra8 25. Qb1 Qc6 26. b3 Ba6 27. Qb2 Bxf1 28. Rxf1 c4 29. b4 Qa4 30. Rb1 Bf8 31. Kf1 Nb5 32.
Ke2 f5 33. Nd1 Kf7 34. Nf2 Qa2 35. Nd1 Ke6 36. Qxa2 Rxa2 37. Rb2 Ra1 38. Be1 Kd7 39. Bd2
Kc6 40. Be1 Na3 41. Kd2 Kb5 42. Bf2 Ka4 43. Be1 Be7 44. Bf2 Nb5 45. Kc2 Ka3 46. Rb1 Ra2+
47. Rb2 Nxc3 48. Kxc3 Ra1 0-1