[Event "Villa Gesell Madariaga 5th"]
[Site "Villa Gesell"]
[Date "1970.03.06"]
[Round "5(1)"]
[White "Schweber, Samuel"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nc6 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qd8 9. O-O Nf6 10. Be3 Bd6 11. Bg5 Be7 12. Rc1 O-O 13. a3 b6 14. Qd3 Bb7 15. Rfd1 Nd5 16. Bd2 h6 17. Re1 Nxc3 18. Bxc3 Bf6 19. Bd1 Ne7 20. Bc2 g6 21. Ne5 Nf5 1/2-1/2