Bobby Fischer In July–August, Fischer crushed the mostly grandmaster field at Buenos Aires, winning by a 3½-point margin, scoring 15/17 (+13−0=4). Fischer then played first board for the US Team in the 19th Chess Olympiad in Siegen, where he won an individual Silver medal, scoring 10/13 (+8−1=4), with his only loss being to World Champion Boris Spassky. Right after the Olympiad, Fischer defeated Ulf Andersson in an exhibition game for the Swedish newspaper "Expressen". Fischer had taken his game to a new level. Fischer won the Interzonal (held in Palma de Mallorca in November and December 1970) with 18½/23 (+15−1=7), far ahead
World Chess Championship 1972 as well as the possibility of an unlimited match. In response, Fischer refused to defend his title. Anatoly Karpov, who had fought his way through the 1975 candidates tournament, was declared World Champion by forfeit. Seventeen years later, Fischer entered negotiations with sponsors willing to fund a match under his proposed format, settling on a bid from Yugoslav millionaire Jezdimir Vasiljević. Fischer insisted that since he had not been defeated in a match, he was still the true World Champion. He further claimed that all the games in the FIDE-sanctioned World Championship matches, involving Karpov and his challengers Korchnoi and