construct king's graph
The KingsGraph(m,n) command creates the m by n king's graph on m*n vertices. This is the graph which represents all legal moves of the king chess piece on an m by n chessboard.
R≔Graph 1: an undirected unweighted graph with 24 vertices and 68 edge(s)
The GraphTheory[SpecialGraphs][KingsGraph] command was introduced in Maple 2021.
For more information on Maple 2021 changes, see Updates in Maple 2021.
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