Galvagni Figures & Reid Figures for Pentahexes

A pentahex is a figure made of five regular hexagons 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.

Most of the pentahex Galvagni and Reid figures were found by Dr. Michael Reid of the University of Central Florida.

Galvagni Figures

Here are minimal known Galvagni figures for pentahexes. For hexahexes see Galvagni & Reid Figures for Hexahexes. For heptahexes see Galvagni & Reid Figures for Heptahexes.

Reid Figures

And here are minimal known Reid figures:


Last revised 2010-04-30.

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Col. George Sicherman [ HOME | MAIL ]