[Event "Mar del Plata International-25"]
[Site "Mar del Plata"]
[Date "1962.03.28"]
[Round "5"]
[White "Letelier Martner, Rene"]
[Black "Najdorf, Miguel"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 O-O 6. Nge2 e5 7. d5 c6 8. O-O cxd5 9. cxd5
Nbd7 10. h3 Nc5 11. Bc2 a5 12. Be3 Bd7 13. a3 a4 14. Nc1 Qa5 15. Qd2 Nh5 16. N1e2 f5 17.
f3 f4 18. Bf2 g5 19. Rfb1 Nf6 20. b4 axb3 21. Bxb3 h5 22. Kh1 g4 23. Ng1 Rfc8 24. Be1 Bf8
25. Bd1 Qd8 26. a4 Qe8 27. a5 Qg6 28. Be2 Be7 29. Bb5 Bd8 30. Bxd7 Nfxd7 31. Nb5 b6 32. a6
Rxa6 33. Na7 Rxa1 34. Rxa1 Ra8 35. Qc3 Bf6 36. Nb5 Rxa1 37. Qxa1 gxf3 38. gxf3 Nxe4 39.
fxe4 Qxe4+ 40. Kh2 Qc2+ 41. Kh1 Qe4+ 42. Kh2 Qc2+ 43. Kh1 f3 44. Qa8+ Nf8 45. Nxf3 Qe2 46.
Qa3 Qf1+ 47. Ng1 Qxe1 48. Qf3 Be7 49. Qxh5 Qc1 50. Qe8 Qg5 51. Qc6 Qg6 52. Kh2 Bg5 53.
Nxd6 Be3 54. Ne2 Bc5 55. Nb7 Qd3 56. Ng3 Qd2+ 57. Kh1 Qe1+ 0-1