[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.05"]
[Round "1"]
[White "Panno, Oscar"]
[Black "Pachman, Ludek"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. b3 b6 8. Nc3 Bb7 9. Bb2 c5 10. cxd5 Nxd5 11. Nxd5 Bxd5 12. Qd3 cxd4 13. Bxd4 Bf6 14. Rfd1 Bxd4 15. Nxd4 Nf6 16. e4 Bb7 17. Qe3 Qe7 18. e5 Nd5 19. Nf5 exf5 20. Bxd5 Bxd5 21. Rxd5 Rfd8 22. Rad1 Rxd5 23. Rxd5 Rd8 24. Qd4 Rxd5 25. Qxd5 g6 26. Kg2 Kg7 1/2-1/2