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Fischer was also superb at [[speed chess]], and won the first unofficial world [[blitz chess]] title in 1970.<ref>https://www.theguardian.com/sport/2020/nov/06/chess-magnus-carlsen-showboats-his-bullet-skills-with-11-straight-wins</ref>  While growing up, he learned [[Russia]]n on his own, in order to study Russian chess literature.

Fischer was also superb at [[speed chess]], and won the first unofficial world [[blitz chess]] title in 1970.<ref>https://www.theguardian.com/sport/2020/nov/06/chess-magnus-carlsen-showboats-his-bullet-skills-with-11-straight-wins</ref>  While growing up, he learned [[Russia]]n on his own, in order to study Russian chess literature.

He forfeited his title to Soviet Grandmaster [[Anatoly Karpov]] in 1975 when he refused to defend his title, unable to agree on any proposed conditions for a match with Karpov. He did not publicly play [[chess]] again until 1992, when he played and won a return match in [[Yugoslavia]] in violation of a [[United Nations]] embargo against that country at that time.  The [[Deep State]] prosecuted him on that technicality in his absence, and revoked his passport without notice to him such that he was seized at an airport in [[Japan]] and imprisoned for 6 months there before granted asylum by [[Iceland]].<ref>https://en.chessbase.com/post/bobby-fischer-six-months-in-jail</ref>

He forfeited his title to Soviet Grandmaster [[Anatoly Karpov]] in 1975 when he refused to defend his title, unable to agree on any proposed conditions for a match with Karpov. He did not publicly play [[chess]] again until 1992, when he played and won a return match in [[Yugoslavia]] in violation of a [[United Nations]] embargo against that country at that time.  The [[Deep State]] prosecuted him on that technicality in his absence, and revoked his passport without notice to him such that he was seized at an airport in [[Japan]] and imprisoned for 6 months there before granted asylum by [[Iceland]].<ref>Guðmundur G. Thórarinsson, who was both a former Icelandic Parliamentarian and former president of the Icelandic Chess Federation, wrote: "The only person in the world to have been indicted for a violation of this regulation – a regulation that has long since ceased to be in force, and a violation committed in a country that no longer exists – is Robert James Fischer. This case is an example of a barbarous violation of human rights." [https://en.chessbase.com/post/bobby-fischer-six-months-in-jail Chessbase article]</ref>

Fischer set several records in the 1960s for winning every game in a tournament, which is otherwise unheard of.  He also invented a type of chess clock and created a variation on chess which is very popular today, known as Chess960.

Fischer set several records in the 1960s for winning every game in a tournament, which is otherwise unheard of.  He also invented a type of chess clock and created a variation on chess which is very popular today, known as Chess960.