The Cincinnati Enquirer Cincinnati, Ohio Thursday, September 16, 1971 - Page 9
Fischer, Petrosian In Chess Qualifier
Buenos Aires (AP) — Grandmasters Bobby Fischer of the United States and Tigran Petrosian of the Soviet Union begin challenge play here September 30 to determine who will compete against present world chess champion Boris Spassky of the USSR.
Twelve games are scheduled and will be referred by Austrian Wilfred Dorazil. If the players are tied at the end of regular play, an extra series of matches will be held.
Dates for the matches are September 30, October 5, 7, 12, 14, 19, 21, 24, 26, 28, and 31.