Colorado Springs Gazette-Telegraph Colorado Springs, Colorado Monday, May 24, 1971 - Page 20
World Chess Enters Quarter-Finals by the Associated Press
Grandmasters Tigran Petrosian of the Soviet Union and Bent Larsen of Denmark recorded victories Sunday in quarter-finals play of the World Chess Championships but illness forced postponement of the Bobby Fischer-Mark Taimanov elimination match.
In Seville, Spain, Petrosian defeated Robert Huebner, West Germany, in 40 moves.
This was the seventh match between the two players and the first victory by Petrosian. The other six games finished in a tie.
Petrosian made a Sicilian defense in the match which lasted five hours. The Soviet player has four points and Huebner three.
The eighth match of the ten-match round will be played Monday.
In Las Palmas, Canary Islands, Larsen beat Wolfgang Uhlmann, East Germany, in the 36th move of their sixth match.
Larsen made a Meran defense. The match lasted 4½ hours. He now has four points and Uhlmann has two.
The seventh match of the ten-game round will be played Tuesday.
And in Vancouver, B.C., Soviet Grandmaster Taimanov, 45, asked postponement of the fourth game to seek treatment for high blood pressure.