New York Times, New York, New York, Sunday, May 24, 1959 - Page 256
Fischer Defeats Kupper In Zurich
U.S. Star Gains Undisputed Possession of 1st Place in Chess Tournament
Bobby Fischer, the 16-year-old United States chess champion, defeated Josef Kupper of Switzerland in twenty-five moves to gain undisputed possession of first place in the jubilee international masters tournament at Zurich, according to a report from Swiss news sources last night.
The talented young Erasmus Hall High School student devised a fine combination against the Sicilian defense set up by his opponent. Fischer sacrificed at his twentieth turn and, give moves later, forced Kupper's resignation. The Brooklyn youth now has a 3½-½ total.
Fischer was helped to the top by Paul Keres of the Soviet Union who defeated Svetozar Gligoric of Yugoslavia in 38 moves of a Ruy Lopez.
Gligoric, who had been tied with Fischer, dropped to fourth place in the standing.
Keres tied at 3-1 for second place with Mikhail Tal of the Soviet Union, Tal, on the black side of a Sicilian defense, won in 36 moves from Wolfgang Unzicker of West Germany.
The only other fourth-round victor was Hein Donner of the Netherlands, who won a pawn from Dr. Erwin Nievergelt, Switzerland and scored in 38 moves.