[Event "Mar del Plata International-20"]
[Site "Mar del Plata"]
[Date "1957.03.19"]
[Round "4"]
[White "Ader Hausman, Walter"]
[Black "Sanguineti, Raul"]
[Result "0-1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 g6 4. d4 Bg7 5. e4 O-O 6. Be2 d6 7. O-O Bg4 8. d5 e5 9. Ne1 Bd7 10. Nd3 Qe7 11. Bg5 h6 12. Be3 Na6 13. a3 Nc7 14. f3 b6 15. b4 Nfe8 16. a4 a5 17. bxa5 bxa5 18. Qd2 Kh7 19. Nb5 Qd8 20. Nxc5 dxc5 21. Bxc5 Na6 22. Be3 f5 23. c5 Nf6 24. Nd6 Qc7 25. Rfc1 fxe4 26. fxe4 Bg4 27. Bd3 Nb4 28. Bb1 Nh5 29. Bd3 Nxd3 30. Qxd3 Nf4 31. Bxf4 exf4 32. Rab1 Rab8 33. Nb5 Qe5 34. d6 f3 35. c6 Bh3 36. c7 Rb6 37. d7 Qg5 38. g3 Bxd7 39. Qxd7 Qe3+ 40. Kh1 Qxe4 41. h4 Rbf6 42. Nc3 Qe5 43. Nd5 Qxg3 44. Nxf6+ Rxf6 45. Rb2 Rf4 46. Rh2 Rxh4 47. Qd2 f2 48. Rxh4 Qf3+ 49. Kh2 Be5+ 0-1