A polyhex tri-oddity
is a figure with ternary symmetry formed by some number of copies of
a polyhex that is not a multiple of three.
Torsten Sillke first studied them in 1996.
Here are minimal known tri-oddities for heptahexes.
Please write if you find a smaller solution or solve an unsolved case.
For hexahexes, see Hexahex Tri-Oddities.
Last revised 2016-06-18.
Back to Polyform Curiosities
Col. George Sicherman