[Event "Mar del Plata International-24"]
[Site "Mar del Plata"]
[Date "1961.03.13"]
[Round "2"]
[White "Letelier Martner, Rene"]
[Black "Silva Nazzari, Roberto"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 O-O 6. Nge2 e5 7. d5 Nh5 8. O-O Na6 9. a3 Nc5 10. Bc2 a5 11. Rb1 f5 12. exf5 Bxf5 13. b4 axb4 14. axb4 Nd7 15. Ne4 Bxe4 16. Bxe4 Nf4 17. Nc3 Nf6 18. f3 Nxe4 19. Nxe4 h6 20. Qc2 Rf7 21. Rd1 Rd7 22. Bb2 c6 23. dxc6 bxc6 24. c5 dxc5 25. Nxc5 Rxd1+ 26. Rxd1 Qg5 27. Ne4 Qe7 28. Qxc6 Rd8 29. Rxd8+ Qxd8 30. Qd6 Qxd6 31. Nxd6 Nd3 32. Bc3 Bf8 33. Nc4 Nxb4 34. Nxe5 Bg7 35. Bd4 g5 36. Kf1 Nc2 37. Bb2 Ne3+ 38. Kg1 Nd5 39. Nd3 Bxb2 40. Nxb2 Kf7 41. Kf2 Kf6 42. Nc4 Ne7 43. Ke3 Ng6 44. Ke4 h5 45. Ne3 Ke6 46. Nd5 Nh4 47. f4 Nxg2 48. fxg5 Nh4 49. Ne3 Ng6 50. Ng2 Ne7 51. Nf4+ Kf7 52. h4 Kf8 53. Ke5 Kf7 54. Ng2 Ng6+ 55. Kd6 Ne7 56. Ne3 Ng6 57. Nf5 1/2-1/2