世界最大的西洋棋組織，擁有國家會員163個，The Fédération Internationale des Échecs or World Chess Federation is an international organization that connects the various national chess federations around the world. It is usually referred to as FIDE (pronounced “fee day”), its French acronym. FIDE was founded in Paris, France on July 24, 1924. Its motto is Gens una sumus, meaning “We are one people”. Its current president (as of May 2004) is Kirsan Ilyumzhinov, who also is president of Kalmykia, a small republic within Russia.
As well as organising the World Chess Championship and Chess Olympiad, FIDE calculates Elo ratings of players, defines the rules of chess, periodically publishes albums of the best chess problems (the FIDE Albums), awards the titles of FIDE Master, International Master, International Grandmaster, women’s versions of those titles, a number of organisational titles including International Arbiter, and Master and Grandmaster titles in problem and study composing and solving.
As well as the overall world championship, FIDE organises championships for women and juniors, regional championships, and the Chess Olympiad. It oversees few other tournaments, although other top-level events, almost without exception, respect FIDE rules and regulations.