Heptiamonds – The Game Pieces

Each Heptiamond piece is made of seven equilateral triangles. There are 24 distinct Heptiamonds. Heptiamonds belong to the family of polyamonds.

24 Heptiamonds

Puzzles made of Heptiamonds

Here is a small selection of the many possible symmetric shapes that can be constructed from Heptiamonds.

Heptiamond shape made from 3D-printed pieces
Solution for Heptiamond shape 1
Heptiamond shape 2
solution for Heptiamond shape 2
solution for Heptiamond shape 3
solution for Heptiamond shape 4
solution for Heptiamond shape 5
solution for Heptiamond shape 6

Shapes made from Heptiamonds that contain embedded Hexiamond shapes are also interesting

solution for Hept-Hex-Figur 1
solution for Hept-Hex-Figur 2
solution for Hept-Hex-Figur 3
solution for Hept-Hex-Figur 4
solution for Hept-Hex-Figur 5

Resources & Downloads

3D Printing Templates

The 3D-print templates consist of the 24 Heptiamonds and a matching box.

The Heptiamond pieces are placed into the box in two layers.

Printables ➡️
3D printed Heptiamond pieces in a box
Two-part Heptiamond shape

Solving Program

screenshot Heptiamond Solver

The Heptiamond solver is part of a program collection available for download on Itch.io. It is for Windows only.

IMPORTANT: For a correct installation, please read the Instructions before unpacking!

Instructions
Download program