The magichexy.xlsx Model

The Magic Hexagon Puzzle

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Given a hexagon partitioned into 19 cells, find
a distinct assignment of integers to the cells so
that sum of any 3, 4, or 5 cell row or diagonal is 38;
For a side of length 3, the numbers can range from 1 to 19.
For sides > 3, one must allow the lowest integer to be > 1.


Puzzle | AllDiff constraint | Magic hexagon |