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Chess rating system. A chess rating system is a system used in chess to estimate the strength of a player, based on their performance versus other players. They are used by organizations such as FIDE, the US Chess Federation (USCF or US Chess), International Correspondence Chess Federation, and the English Chess Federation.
Website. www.undp.org. The United Nations Development Programme (UNDP) [note 1] is a United Nations agency tasked with helping countries eliminate poverty and achieve sustainable economic growth and human development. The UNDP emphasizes on developing local capacity towards long-term self-sufficiency and prosperity.
Bughouse chess (also known as exchange chess, Siamese chess (but not to be confused with Thai chess), tandem chess, transfer chess, double bughouse, doubles chess, cross chess, swap chess or simply bughouse, bugsy, or bug) is a popular chess variant played on two chessboards by four players in teams of two. [1]
When annotating chess games, commentators frequently use widely recognized annotation symbols. Question marks and exclamation points that denote a move as bad or good are ubiquitous in chess literature. [ 1 ] Some publications intended for an international audience, such as the Chess Informant, have a wide range of additional symbols that ...
Chess endgame. The endgame (or ending) is the final stage of a chess game which occurs after the middlegame. It begins when few pieces are left on the board. The line between the middlegame and the endgame is often not clear, and may occur gradually or with a quick exchange of pieces.
The Elo[a] rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess or esports. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved chess-rating system over the previously used Harkness system, [1] but is also used as a ...
Opposition (chess) In chess, opposition (or direct opposition) is a situation in which two kings are two squares apart on the same rank or file. Since kings cannot move adjacent to each other, each king prevents the other's advance, creating a mutual blockade. In this situation, the player not having to move is said to have the opposition. [1]
The International Chess Federation or World Chess Federation, [3] [4] commonly referred to by its French acronym FIDE (/ ˈ f iː d eɪ / FEE-day Fédération Internationale des Échecs), [5] is an international organization based in Switzerland that connects the various national chess federations and acts as the governing body of international chess competition.