Galvagni Figures & Reid Figures for Heptominoes
A heptomino is a figure made of seven squares 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.
Some of these figures were found by
Reid of the University of Central Florida
of Stetson University.
For pentominoes, see Galvagni Figures & Reid Figures
For hexominoes, see Galvagni Figures & Reid Figures
For octominoes, see Galvagni Figures & Reid Figures
A level polyomino may be reflected orthogonally and rotated 180°
but not 90°.
Last revised 2014-10-31.
Back to Galvagni Compatibility
Col. George Sicherman