World Chess Championship 1969 World Chess Championship 1969 The 1969 World Chess Championship was played between Tigran Petrosian and Boris Spassky in Moscow from April 14 to June 17, 1969. Spassky won. The 1967 Interzonal Tournament was played in Sousse, Tunisia in October and November. The first six placegetters qualified for the Candidates, along with Boris Spassky and Mikhail Tal who were seeded into the Candidates matches as finalists of the previous tournament. A major controversy occurred when Bobby Fischer, who was leading the tournament with seven wins and three draws in ten rounds, abandoned the event over a dispute with the organisers. Because
Bobby Fischer Chess Championship. Therefore, I resign my FIDE World Chess Championship title. Sincerely, Bobby Fischer. The delegates responded by reaffirming their prior decisions, but did not accept Fischer's resignation and requested that he reconsider. Many observers considered Fischer's requested 9–9 clause unfair because it would require the challenger to win by at least two games (10–8). Botvinnik called the 9–9 clause "unsporting". Korchnoi, David Bronstein, and Lev Alburt considered the 9–9 clause reasonable. Due to the continued efforts of US Chess Federation officials, a special FIDE Congress was held in March 1975 in Bergen, Netherlands, in which it was accepted that