Pentahex Tri-Oddities

A pentahex tri-oddity is a figure with ternary symmetry formed by some number of copies of a pentahex that is not a multiple of three.

Here are the minimal known tri-oddities for pentahexes, along with holeless variants and mirror-symmetric tri-oddities. They are not necessarily uniquely minimal.

Please write if you find a smaller solution or solve an unsolved case.

See also:

  • Dihex, Trihex, and Tetrahex Tri-Oddities
  • Hexahex Tri-Oddities
  • Navigation

    Basic Tri-Oddities

    Holeless Variants

    Horizontal Mirror Symmetry

    Holeless Variants

    Vertical Mirror Symmetry

    Holeless Variants

    Last revised 2026-07-04.


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    Col. George Sicherman [ HOME | MAIL ]