[Event "Mar del Plata International-24"]
[Site "Mar del Plata"]
[Date "1961.03.19"]
[Round "8"]
[White "Letelier Martner, Rene"]
[Black "Rossetto, Hector"]
[Result "0-1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. O-O c6 5. b3 Nbd7 6. Bb2 Qc7 7. c4 e6 8. d3 Be7 9. Nbd2 O-O 10. Re1 a5 11. e4 dxe4 12. dxe4 Bg6 13. Nh4 Nc5 14. Nxg6 hxg6 15. e5 Nfd7 16. Ne4 Nxe4 17. Rxe4 Nc5 18. Re3 Rfd8 19. Qc2 Rd7 20. Bf1 Rad8 21. Bc3 Bg5 22. f4 Be7 23. Kh1 Qb6 24. Rf3 Na6 25. a3 Bc5 26. Ra2 Rd1 27. Kg2 Be3 28. Qe2 Bc5 29. Qc2 Qc7 30. h4 R1d7 31. Be2 Qb6 32. Rf1 Bd4 33. Be1 Be3 34. Rf3 Bd4 35. Qb1 Bc5 36. Qc1 Bd4 37. Bd2 Qc7 38. b4 axb4 39. axb4 c5 40. b5 Nb4 41. Bxb4 cxb4 42. Rd2 Bc3 43. Rxd7 Rxd7 44. Rd3 Rxd3 45. Bxd3 Qc5 46. Kf3 Qa7 47. Qe3 Qa1 48. Kg4 b6 49. Bc2 Bd4 50. Qb3 Qa3 51. Kf3 Qc1 52. Kg4 Qe1 53. Qd3 Bf2 54. Bb3 Kh7 55. Kh3 Qh1+ 56. Kg4 Qh2 57. c5 Bxc5 58. Bc2 Bf2 59. Bb1 Kh6 60. Qb3 f5+ 61. exf6 gxf6 62. f5 gxf5+ 0-1