Galvagni Figures and Reid Figures for Dekiamonds
An dekiamond is a figure made of ten equilateral triangles joined
edge to edge.
A Galvagni figure is a figure that can be tiled by a polyform
in more than one way—a kind of self-compatibility figure.
A Reid figure is a Galvagni figure without holes.
Galvagni Figures
Unsolved
Mirror-Symmetric Variants
Reid Figures
Last revised 2026-03-16.
Back to Galvagni Compatibility
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Polyform Compatibility
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Polyform Curiosities
Col. George Sicherman
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