[Event "Zonal-8 South America (MdP-28)"]
[Site "Mar del Plata"]
[Date "1969.04.01"]
[Round "10"]
[White "Silva Sanchez, Carlos"]
[Black "Najdorf, Miguel"]
[Result "0-1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. Bb5 a6 6. Bxc6+ bxc6 7. d3 Nf6 8. O-O Be7 9. Qe1
O-O 10. Bd2 a5 11. Ne5 Qc7 12. b3 Ba6 13. Rf3 c4 14. bxc4 dxc4 15. Nxc4 Bxc4 16. dxc4 Nd7
17. Na4 Bb4 18. Rb1 e5 19. f5 Bxd2 20. Qxd2 Nf6 21. Re1 Rab8 22. a3 Rfd8 23. Rd3 Rxd3 24.
cxd3 Rb3 25. Qc2 Rxa3 26. Rb1 h6 27. Nb6 Qd8 28. c5 Qd4+ 0-1