[Event "Buenos Aires"]
[Site "Buenos Aires"]
[Date "1970.07.20"]
[Round "2"]
[White "Rubinetti, Jorge Alberto"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]

1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 e5 5. Nge2 c6 6. Be3 Nf6 7. f3 O-O 8. d5 cxd5 9. cxd5 a6 10. Qd2 Nbd7 11. Ng3 h5 12. Bd3 Nh7 13. O-O Bf6 14. Kh1 Bg5 15. Bxg5 Qxg5 16. Qxg5 Nxg5 17. h4 Nh7 18. Rfc1 Nhf6 19. Nf1 Ne8 20. Ne3 f5 21. b4 Nb6 22. a4 Bd7 23. a5 Nc8 24. Nc4 Nf6 25. Ra2 Kg7 26. Kg1 fxe4 27. fxe4 Kf7 28. Rf2 Ke7 29. Rcf1 Rb8 30. Rb1 b5 31. axb6 Nxb6 32. Na5 Rbc8 33. Rc2 Rc7 34. Rbc1 Ra8 35. Nb1 Rxc2 36. Rxc2 Rc8 37. Rxc8 Bxc8 38. Nd2 Ne8 39. Nc6+ Kf6 40. Kf2 Nc7 41. Nb3 g5 42. g3 g4 43. Nba5 Kf7 44. Ke2 Ke8 45. Kd2 Nb5 46. Bxb5 axb5 47. Na7 Ba6 48. N5c6 Nc8 49. Kc3 Nxa7 50. Nxa7 Kd7 51. Kd2 Kc7 52. Nc6 Bc8 53. Na5 Bd7 54. Nb3 Be8 55. Kd3 Bg6 56. Na5 Be8 1/2-1/2