[Event "Mar del Plata International-11"]
[Site "Mar del Plata"]
[Date "1948.03.30"]
[Round "16"]
[White "De Freitas, Marcio Elisio"]
[Black "Maderna, Carlos Hugo"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. Bg2 Qb6 9. e3 cxd4 10. exd4 Bb4+ 11. Nc3 O-O 12. O-O Re8 13. Be3 Qa5 14. a3 Bf8 15. h3 Qd8 16. Rad1 Bd6 17. Rfe1 Qc7 18. Qb3 Rb8 19. Rc1 Qa5 20. Ne5 Qb6 21. Qa2 Qd8 22. Rcd1 Nb6 23. g4 h6 24. Bf3 Nfd7 25. Ne4 Bc7 26. g5 Nd5 27. gxh6 Nxe5 28. h7+ Kh8 29. dxe5 Qh4 30. Ng5 Nxe3 31. Nxf7+ Kxh7 32. Rxe3 Bb6 33. Qb1+ Kg8 34. Qg6 Rf8 35. Qg5 Qxg5+ 36. Nxg5 Bxe3 37. fxe3 b5 38. Rd6 Bb7 39. Bg4 Bd5 40. e4 Bc4 41. Rxa6 1/2-1/2