King's Gambit, Fischer Defense King's Gambit, Fischer Defense The Fischer Defense to the King's Gambit is a chess opening variation that begins with the moves: Although 3...d6 was previously known, it did not become a major variation until Fischer advocated it in a famous 1961 article in the first issue of the "American Chess Quarterly". In the "Encyclopaedia of Chess Openings", the Fischer Defense is given the code C34. After Bobby Fischer lost a 1960 game at Mar del Plata to Boris Spassky, in which Spassky played the Kieseritzky Gambit, Fischer left in tears and promptly went to work at devising a new defense
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