The Courier-Journal Louisville, Kentucky Sunday, July 25, 1971 - Page 13
Petrosyan Becomes Ill, Plays Korchnoi Monday
Moscow (AP) — Former world chess champion Tigran Petrosyan was forced to postpone yesterday's match against Soviet champion Viktor Korchnoi because of illness in the semifinal round of the World Chess Challengers' Tournament.
The postponed game will be played Monday with Petrosyan in position to gain the finals against American Bobby Fischer with either a victory or a draw against Korchnoi.
The finals winner will meet world champion Boris Spassky of the Soviet Union.