[Event "Olympiad-17 Preliminaries A"]
[Site "Havana"]
[Date "1966.10.29"]
[Round "4"]
[White "Olivera, Alfredo"]
[Black "Jansson, Borje"]
[Result "0-1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. c4 Bg7 8. Nc3 Nh6 9. c5 Nf7 10. h4 Rb8 11. Bc4 Ne5 12. Be2 f5 13. Qa4 Qc7 14. exf5 gxf5 15. Rh3 O-O 16. Rg3 f4 17. Rg5 d5 18. cxd6 Qxd6 19. Kf1 Rb4 20. Qxa7 f3 21. gxf3 Rxh4 22. Ne4 Qe6 23. Rg3 Qf7 24. Qd4 Kh8 25. Be3 Rh1+ 0-1