Pebbling Move
In graph pebbling, a configuration assigns a nonnegative integer number of pebbles to each graph vertex. A pebbling move is a move that removes two pebbles from one vertex and places one pebble on an adjacent vertex, with the second pebble discarded.
See also
Graph Pebbling, Pebbling NumberExplore with Wolfram|Alpha
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Cite this as:
Weisstein, Eric W. "Pebbling Move." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/PebblingMove.html