New York Times, New York, New York, Wednesday, August 13, 1958
Russians Keep Lead
Auerbach and Petrosian Win in Interzonal Chess
Yuri Auerbach and Tigran Petrosian of Russia won their fifth-round games yesterday to retain the lead in the interzonal chess tournament at Portoroz, according to reports from Yugoslavia.
Auerbach defeated Hector Rossetto of Argentina, while Petrosian won from Alexander Matanovic of Yugoslavia.
Mikhail Tal, the Soviet champion, defeated Dr. Miroslav Filip of Czechoslovakia to tie at 3½—1½ with Fridrik Olafsson of Iceland, who outplayed Rodolfo Cardoso of the Philippines.
Bobby Fischer, the United States champion, had a bye. James T. Sherwin of New York adjourned with Ludek Pachman of Czechoslovakia.