[Event "Mar del Plata International-20"]
[Site "Mar del Plata"]
[Date "1957.03.15"]
[Round "1"]
[White "Rubio Aguado, Fernando"]
[Black "Najdorf, Miguel"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1
Re8 10. d5 c5 11. g3 Ng4 12. Bh3 Nf8 13. Ng5 Nh6 14. Bxc8 Qxc8 15. Kg2 f6 16. Nh3 Nf7 17.
a3 f5 18. Qe2 Nd7 19. f3 Nf6 20. b4 h6 21. Bd2 Qd7 22. Nf2 Rac8 23. Rac1 Rf8 24. Rf1 b6
25. b5 h5 26. Nh3 h4 27. Ng5 Nxg5 28. Bxg5 Nh5 29. a4 hxg3 30. hxg3 f4 31. Bh4 fxg3 32.
Bg5 Nf4+ 33. Bxf4 exf4 34. e5 Bxe5 35. Ne4 Qf5 36. Rh1 Kg7 37. Rh4 Rh8 38. Rch1 Rxh4 39.
Rxh4 Rh8 40. Rxh8 Kxh8 41. Qf1 Kg7 42. Qh1 Bf6 43. Nxd6 Qc2+ 44. Kh3 Be5 45. Ne4 Qxc4 46.
Qd1 Qa2 47. Qd2 Qa1 48. Qg2 Qd4 49. Qe2 Qxd5 50. Nd2 Bf6 0-1