[Event "Zonal South America"]
[Site "Buenos Aires/Rio Hondo"]
[Date "1966.05.30"]
[Round "1"]
[White "Rocha, Antonio Cavilhas"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bg7 6. e5 Ng8 7. f4 Nc6 8. Be3 Nh6 9. Bc4 Nxd4 10. Bxd4 Nf5 11. Bf2 h5 12. Qe2 e6 13. O-O-O Qa5 14. Rd3 O-O 15. g4 hxg4 16. Qxg4 Qb4 17. Bb3 Bxe5 18. Ne2 b6 19. Rg1 Bg7 20. a3 Qe7 21. Nd4 Nxd4 22. Bxd4 Ba6 23. Bxg7 Kxg7 24. Rdg3 1/2-1/2