ANew York Times, New York, New York, Tuesday, October 19, 1971 - Page 50
Fischer Is Victor In Buenos Aires: Petrosian Loses 6th Game in Chess After 66 Moves
Buenos Aires, Oct. 18—Bobby Fischer of the United States defeated Tigran Petrosian of the Soviet Union in 66 moves tonight to take a 3½-2½ lead in the chess match at the San Martin Theater.
This was the second victory in the 12-game series for the 28-year-old American chess genius, against one defeat and three draws. The winner of the match will qualify to play Boris Spassky of the Soviet Union, the world champion, for the title next spring.
The game, the sixth of the match, was adjourned after a five-hour session yesterday when 41 moves were made, three additional hours were needed today.
At adjournment, Fischer had the advantage. He had forced the capture of a pawn, which he took on his 23d turn. At that stage, Fischer had a rook, bishop and five pawns opposed to Petrosian's rook, knight and four pawns. The bishop was ineffective, however, and Fischer's major task was to get his rook into better action.
This was difficult as Petrosian, a former world champion, had set up a blockade in the center. He has no peer in defensive tactics, and was determined to hold the position.
Fischer, who had spent the night analyzing the game, was ready with the answers. When Petrosian moved his rook to the seventh rank, Fischer was ready to cede one or two pawns to get his own rook behind Petrosian's pawns.
Fischer succeeded on his 59th move. This established threats against the king and knight as well as the advance of the queen pawn.
As a last resort, Petrosian sacrificed his knight for two pawns, hoping to exchange Fischer's remaining pawns for a possible drawn ending. Fischer easily foiled this idea, and proceeded with a direct mating attack. Petrosian resigned when he saw no defense.
