[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.08.19"]
[Round "9"]
[White "Petrosian, Tigran V"]
[Black "Neikirkh, Oleg"]
[Result "1/2-1/2"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. Qc2 h6 8. Bh4 g5 9. Bg3 g4 10. Ne5 Qxd4 11. Be2 Bb4 12. O-O Bxc3 13. bxc3 Qxe4 14. Qd2 Nbd7 15. Nxg4 Nd5 16. Rfe1 1/2-1/2