[Event "Interzonal-09b"]
[Site "Petropolis"]
[Date "1973.08.13"]
[Round "15"]
[White "Polugaevsky, Lev"]
[Black "Hort, Vlastimil"]
[Result "1/2-1/2"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 Bg4 5. cxd5 Bxf3 6. Qxf3 cxd5 7. d4 Nc6 8. Bd3 e6 9. O-O Be7 10. Rd1 O-O 11. Bd2 Rc8 12. Be1 Bd6 13. Rac1 Qe7 14. g3 a6 15. Bf1 Rc7 16. Qe2 Rfc8 17. Rb1 Nb8 18. f3 Nbd7 19. Bh3 b5 20. e4 dxe4 21. fxe4 e5 22. dxe5 Bxe5 23. Nd5 Nxd5 24. Rxd5 Re8 1/2-1/2