New York Times, New York, New York, Monday, May 24, 1971 - Page 28
Petrosian and Larsen Win In World Chess Tourney
Grandmasters Tigran Petrosian of the Soviet Union and Bent Larsen of Denmark recorded victories yesterday in quarter-finals play of the World Chess Championships, but illness forced postponement of the Bobby Fischer-Mark Taimanov elimination match, according to The Associated Press.
In Seville, Spain, Petrosian defeated Robert Huebner, West Germany, in 40 moves.
This was the seventh match between the two, and the first victory by Petrosian. The other six games were tied.
In Las Palmas, the Canary Islands, Larsen beat Wolfgang Uhlmann, East Germany in the 36th move of their sixth match. He now has four points and Uhlmann has two.