Though a world championship match between Karpov and Fischer was highly anticipated, those hopes were never realised. Fischer not only insisted that the match be the first to ten wins (draws not counting), but also that the champion retain the crown if the score was tied 9–9. FIDE, the International Chess Federation, refused to allow this proviso, and after Fischer's resignation of the championship on June 27, 1975, FIDE declared that Fischer forfeited his crown. Karpov later attempted to set up another match with Fischer, but the negotiations fell through. This thrust the young Karpov into the role of World Champion without having faced the reigning champion. Garry Kasparov argued that Karpov would have had good chances, because he had beaten Spassky convincingly and was a new breed of tough professional, and indeed had higher quality games, while Fischer had been inactive for three years. This view is echoed by Karpov himself. Spassky thought that Fischer would have won in 1975 but Karpov would have qualified again and beaten Fischer in 1978.
Determined to prove himself a legitimate champion, Karpov participated in nearly every major tournament for the next ten years. He convincingly won the very strong Milan tournament in 1975, and captured his first of three Soviet titles in 1976. He created a phenomenal streak of tournament wins against the strongest players in the world. Karpov held the record for most consecutive tournament victories (9) until it was shattered by Garry Kasparov (14). As a result, most chess professionals soon agreed that Karpov was a legitimate world champion.