Development of the World Chess Championship became the first unified and undisputed World Chess Champion since Kasparov split from FIDE to form the PCA in 1993. Kramnik played to defend his title at the World Chess Championship 2007 in Mexico. This was an 8-player double round robin tournament, the same format as was used for the FIDE World Chess Championship 2005. This tournament was won by Viswanathan Anand. Because Anand's World Chess Champion title was won in a tournament rather than a match, a minority of commentators questioned the validity of his title. Kramnik also made ambiguous comments about the value of Anand's title, but did
World Chess Championship 1921 the title. Lasker had won the previous championship, but he resigned it in 1920, meaning that technically he was the challenger and Capablanca the incumbent for this match, even though the two had never met in a title match before. Lasker resigned the match, making Capablanca the new champion. World Chess Championship 1921 The 1921 World Chess Championship was played between José Raúl Capablanca and Emanuel Lasker. It was played in Capablanca's native Havana from March 18 to April 28. Lasker resigned the title in 1920 in a dispute over match conditions, but agreed to take part as challenger in