Geomagic Squares

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A second normal square with 4×4 target missing one corner cell. It is one of 27,110 normal squares with same target. Again, rotations and reflections are not included in this total. By comparison, there are 16,465 normal squares when the 4×4 target is missing an edge cell. I am grateful to a Turkish correspondent, Meltem Ceylan, for identifying another remarkable property of this square. If the combined area of any set of three or more distinct pieces is 15, then they tile the target; see More Info.

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Last Updated:
1-6-2016
  Copyright © Lee Sallows