Polyabolo Magic Squares
Erich Friedman's Math Magic for May 2007
introduced polyomino magic squares.
A polyomino magic square is a square grid in which copies of a given polyomino
are placed so that the numbers of occupied cells in each row and column
are the same.
This is not possible for some polyominoes, and may be hard to accomplish
Here I show polyabolo magic squares.
Every row and column must contain the same number of polyabolo cells.
Their orientations within the grid cells are ignored.
6 or More Tiles
Last revised 2018-08-21.
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Col. George Sicherman