Chicago Tribune Chicago, Illinois Monday, October 18, 1971 - Page 55
Fischer-Petrosian Match: Chess Game Adjourned
Buenos Aires • Chess grandmasters Bobby Fischer of the United States and Tigran Petrosian of the Soviet Union played five hours and 42 moves last night before adjourning their sixth game.
The grandmasters are to resume the game at 7 p.m. today. They remain tied in their 12-game series.
A small sulfuric acid stink bomb was thrown into the crowded San Martin Theater after the game had been under way for about an hour. Fischer, 28, and Petrosian, 42, apparently didn't know anything had happened and continued the game without interruption.
When the game adjourned at 10 p.m. Fischer with black had completed his 41st move.
At the time of the adjournment, Petrosian, world champion from 1963 to 1969, had five pawns, a knight and a rook left. Fischer, a chess genius from Brooklyn, N.Y., had five pawns, a bishop and a rook. However, Fischer was threatening to capture an isolated pawn on the Russian's queen's rook file.
Petrosian, with the white, opened with the queen's fianchetto game. This meant he was playing defensively, holding his center back and permitting the black a firmer center.
Petrosian deliberately went into a backward defense although he had the white pieces, apparently to see if Fischer would overextend himself.
The two men are battling to determine who will challenge the world's champion, Boris Spassky of the Soviet Union, next spring. They are even so far with two and a half points each.
The 1,000 available seats in the downtown San Martin Theater were filled before the game began and scores of other fans followed the play on demonstration boards set up in the lobby of the modern glass and cement building.