The Los Angeles Times Los Angeles, California Tuesday, June 29, 1971 - Page 27
World Chess Semifinals to Be July 6 by Isaac Kashdan Times Chess Writer
U.S. chess ace Bobby Fischer and Bent Larsen of Denmark will start a 10-game match July 6 at Temple Buell College in Denver.
The match is part of the semifinals in a series to determine a challenger for the world championship now held by Boris Spassky of the Soviet Union.
A similar match will be held in Moscow between two Russians, former world champion Tigran Petrosian and Viktor Korchnoi, beginning July 4.
The two winners will meet in a neutral country in September for a 12-game series. The ultimate victor will then play Spassky next spring.