[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.09.07"]
[Round "20"]
[White "Tal, Mihail"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. Nf3 cxd4 8. Nxd4 Nc6 9. Be3 Nxd4 10. Bxd4 e5 11. fxe5 dxe5 12. Bc5 Re8 13. Qxd8 Rxd8 14. Rd1 Rxd1+ 15. Kxd1 Be6 16. b3 Nd7 17. Be3 Nb8 18. Nb5 Nc6 19. Kc2 Nd4+ 20. Bxd4 exd4 21. Nc7 Rd8 22. Nxe6 fxe6 1/2-1/2