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Backgammon is one of the oldest board games known. It is a two player game where playing pieces are moved according to the roll of dice, and a player wins by removing all of his pieces from the board before his opponent. Backgammon is a member of the tables family, one of the oldest classes of board games in the world. Backgammon involves a combination of strategy and luck (from rolling dice). While the dice may determine the outcome of a single game, over a series of many games, the better player will accumulate the better record, somewhat like poker. Thus, records of matches between players are good indicators of relative skill.〔("Backgammon Luck ''vs'' Skill" ), backgammon.org〕 With each roll of the dice, players must choose from numerous options for moving their checkers and anticipate possible counter-moves by the opponent. In variants that originate from early 20th century New York, players may raise the stakes during the game. There is an established repertoire of common tactics and occurrences. Like chess, backgammon has been studied with great interest by computer scientists. Owing to this research, backgammon software has been developed that is capable of beating world-class human players (see TD-Gammon for an example). ==Rules== Backgammon playing pieces are known variously as checkers, draughts, stones, men, counters, pawns, discs, pips, chips, or nips. The objective is to remove (''bear off'') all of one's own checkers from the board before one's opponent can do the same. The checkers are, in the most often-played variants, scattered at first, and may be blocked or hit by the opponent. As the playing time for each individual game is short, it is often played in matches, where victory is awarded to the first player to reach a certain number of points. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Backgammon」の詳細全文を読む スポンサード リンク
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