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King's graph : ウィキペディア英語版 | King's graph
In graph theory, a king's graph is a graph that represents all legal moves of the king chess piece on a chessboard where each vertex represents a square on a chessboard and each edge is a legal move. More specifically, an king's graph is a king's graph of an chessboard.〔. Chang defines the king's graph on (p. 341 ).〕 For a king's graph the total number of vertices is simply . For a king's graph the total number of vertices is simply and the total number of edges is . The neighbourhood of a vertex in the king's graph corresponds to the Moore neighborhood for cellular automata.〔.〕 A generalization of the king's graph, called a kinggraph, is formed from a squaregraph (a planar graph in which each bounded face is a quadrilateral and each interior vertex has at least four neighbors) by adding the two diagonals of every quadrilateral face of the squaregraph.〔.〕 ==References==
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「King's graph」の詳細全文を読む
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