[Event "Mar del Plata op"]
[Site "Mar del Plata"]
[Date "1972.??.??"]
[EventDate "?"]
[Round "3"]
[Result "1/2-1/2"]
[White "Bernardo Wexler"]
[Black "Jorge Szmetan"]
[ECO "E66"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "40"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 Nc6 7. Nc3 a6 8. d5  Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 e5 13. Rab1 Bf5 14. e4 Bd7 15. Ne2  Bh6 16. f4 Bg4 17. Bf3 Bh3 18. Bg2 Bg4 19. Bf3 Bh3 20. Bg2 1/2-1/2