Geomagic Squares

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A computer-discovered 4×4 geomagic square. Every magic line contains three hexominoes and one heptomino. 3 × 6 + 7 = 5 × 5, the area of the square target. On the matter of computer programs, I can hardly overstate my indebtedness to Pat Hamlyn, a leading name in the field of polyforms and a generous friend to me. At the time, I didn’t let on to Pat exactly what I was up to, but that didn’t prevent him from supplying me with a wonderful suite of programs that, used in conjunction with simpler programs of my own, enabled me to research geomagic squares as I would never have been able to without his assistance. Thus, if there is any credit due for tracking down squares such as the above, then a very large chunk of it belongs to Pat.

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