Frontier+Nodes

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 * Frontier nodes** are interior nodes with leaf-nodes as children, typically being searched in depth-first algorithms at depth of **1**. Following the definition of Ernst A. Heinz, this is where futility pruning might be applied.

=See also=
 * Horizon Node
 * Pre Frontier Node

=External Links=
 * [|Frontier (disambiguation) from Wikipedia]

=References= =What links here?= include page="Frontier nodes" component="backlinks" limit="40"
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