[Event "Buenos Aires"]
[Site "Buenos Aires"]
[Date "1970.07.19"]
[Round "1"]
[White "Panno, Oscar"]
[Black "Mecking, Henrique"]
[Result "1-0"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 b6 8. e3 Bb7 9. Nc3 dxc4 10. bxc4 Nc6 11. Qe2 Nb4 12. d4 cxd4 13. exd4 Rc8 14. Rfd1 Re8 15. a3 Nc6 16. Ne5 Qc7 17. Nb5 Qb8 18. d5 exd5 19. cxd5 Nxe5 20. Qxe5 a6 21. Qxb8 Rxb8 22. Na7 Bd6 23. a4 Ra8 24. Nc6 Rac8 25. Rac1 b5 26. Rb1 Ba8 27. axb5 axb5 28. Bxf6 gxf6 29. Rxb5 Rc7 30. Rdb1 Kf8 31. Bf3 f5 32. Kg2 f4 33. g4 Bxc6 34. dxc6 Be5 35. Re1 f6 36. Rb7 Ree7 37. Rd1 h6 38. Be4 Kf7 39. Kf3 Kf8 40. h4 Kf7 41. h5 Kf8 42. Rd8+ Re8 43. Rxe8+ Kxe8 44. Rb8+ Kf7 45. Rh8 f5 46. Bd5+ Kg7 47. Rg8+ Kh7 48. Re8 fxg4+ 49. Kxg4 Bd4 50. f3 Be3 51. Kf5 Ra7 52. Ke6 Bc5 53. Rd8 1-0