[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.23"]
[Round "12"]
[White "Averbakh, Yuri L"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 d5 7. c5 Ne4 8. Bd2 Nxd2 9. Qxd2 b6 10. a3 Bxc3 11. Nxc3 bxc5 12. Bb5+ Bd7 13. dxc5 a5 14. Rc1 a4 15. c6 Bxc6 16. Nxd5 Qxd5 17. Qxd5 exd5 1/2-1/2