Galvagni Figures & Reid Figures for Octominoes

A octomino is a figure made of eight 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 Michael Reid of the University of Central Florida.

For pentominoes, see Galvagni Figures & Reid Figures for Pentominoes.
For hexominoes, see Galvagni Figures & Reid Figures for Hexominoes.
For heptominoes, see Galvagni Figures & Reid Figures for Heptominoes.

Here are minimal known Galvagni figures for octominoes.

Here are the unsolved octominoes:

Here are the impossible octominoes:

And here are minimal known Reid figures:

Last revised 2009-10-18.

Back to Polyform Curiosities.

Col. George Sicherman [ HOME | MAIL ]