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Dragonfly (also known as Shuttle Chess or Bird Chess) is a chess variant invented by Christian Freeling in 1983.〔Pritchard (1994), p. 96〕〔Pritchard (2007), p. 159〕 There are no queens, and a captured bishop, knight, or rook becomes the property of the capturer, who may play it as his own on a turn to any open square. The board is 7×7 squares, or alternatively a 61-cell hexagon with two additional pawns per side. The game is an offshoot and simplification of a Freeling game named ''Loonybird'' (or ''Dragon Chess''). Still, "Play is complex and interesting. Draws are rare too." ==Game rules== The standard rules of chess apply, including winning by checkmate. But Dragonfly follows these special rules: * A bishop, knight, or rook that is captured, enters the capturing player's ''pieces in hand'' in his own color. As a move, a player may ''drop'' any one of the pieces he has in hand on any open square (if the move is otherwise legal). Captured pawns do not go in hand and are instead removed from the game. * Pawns do not have an initial double-step option. (So, ''en passant'' is not possible.) A pawn promotes when reaching the furthest rank to any piece of the player's choosing from those currently held in hand by his opponent. (If the opponent has none, then a pawn move to the furthest rank may not be made.) The chosen piece is removed from the opponent's in-hand stock. * Castling is permitted, and normal castling conventions apply, with the king shifting over two squares in either direction. But castling with a dropped rook is not allowed. 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「Dragonfly (chess variant)」の詳細全文を読む スポンサード リンク
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