Vladimir Kramnik
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Vladimir Borisovich Kramnik (Russian: Влади́мир Бори́сович Кра́мник; born 25 June 1975) is a Russian chess grandmaster. He was the Classical World Chess Champion from 2000 to 2006, and the 14th undisputed World Chess Champion from 2006 to 2007. In 2000, Kramnik defeated Garry Kasparov and became the Classical World Chess Champion. He defended his title in 2004 against Peter Leko, and defeated the reigning FIDE World Champion Veselin Topalov in a unification match in 2006. As a result, Kramnik became the first undisputed World Champion, holding both the FIDE and Classical titles, since Kasparov split from FIDE in 1993. In 2007, Kramnik lost the title to Viswanathan Anand, who won the World Chess Championship 2007 tournament ahead of Kramnik. He challenged Anand at the World Chess Championship 2008 to regain his title, but lost. He played in four more Candidates tournaments between 2012 and 2018. Kramnik publicly announced his retirement as a professional chess player in January 2019 to focus on projects relating to chess for children and education. Kramnik reached a peak rating of 2817 in October 2016, which makes him the joint-eighth-highest-rated player of all time. He is widely recognized for his contributions to opening theory. Kramnik has since been widely criticized by other professional chess players and the media for frequently accusing fellow players of cheating without substantial evidence. FIDE was investigating him for his comments before the death of Daniel Naroditsky, an American grandmaster Kramnik accused of cheating, and the investigation is ongoing.