[Event "Mar del Plata International-27"]
[Site "Mar del Plata"]
[Date "1966.03.24"]
[Round "11"]
[White "Stein, Leonid"]
[Black "Rossetto, Hector"]
[Result "1/2-1/2"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Qc2 Nbd7 8. Nf3 Nf8 9. Bd3 Ne6 10. Bh4 g6 11. O-O Ng7 12. b4 O-O 13. b5 Bf5 14. bxc6 bxc6 15. Ne5 Rc8 16. Na4 Bxd3 17. Nxd3 Ne4 18. Bg3 Nf5 19. Rab1 Nfxg3 20. hxg3 Bd6 21. Nac5 Re8 22. Nxe4 Rxe4 23. Nc5 Bxc5 24. Qxc5 Qe7 25. Rfc1 Rxe3 1/2-1/2