Puzzles Made from Geometric Shapes
Information, shapes, solutions, online solvers and 3D-printing templates for classic and less familiar polyform puzzles.
Well-Known Puzzles
Pentominoes
Twelve pieces, each made from five equal-sized squares. They can be used to form rectangles and many other figures.
Tangram
The well-known Chinese dissection puzzle made from seven pieces. They can be used to form animals, people and geometric figures.
Soma Cube
Seven pieces made from small cubes. They can be used to build a cube and many other three-dimensional figures.
Hexiamonds
Twelve pieces, each made from six equilateral triangles. They can be used to form many geometric figures.
More Areas
All Puzzles
An overview of all 2D and 3D puzzles presented on this website. Every puzzle has a free 3D-printing template. For some 2D puzzles, templates for making the pieces from cardboard are also available.
Shapes & Solutions
Shapes and solutions for five different polyform puzzles.
Tools & Downloads
Online solvers, the PolyformSolver for Windows, templates for making puzzle pieces and figures, and links to the 3D-printing templates on Printables.
Latest Updates
September 21, 2026
The 3D-printing templates on Printables have been updated: the sliding lids of all puzzle boxes now feature an improved snap-in mechanism.
August 20, 2026
Version 2.0 of PolyformSolver has been released. New features include interactive 3D visualisations for all spatial grids, combined 2D and 3D solution views, and an animated assembly sequence that displays the pieces step by step in the recommended order.
July 7, 2026
Version 1.3 of PolyformSolver has been released. New features include grids for ball pyramids, ball tetrahedra, polytrocs and polyrhons, along with matching example puzzles. Orientation aids and the display of shadows and frames for 3D puzzle shapes have also been improved.
June 28, 2026
New on the website: PolyformSolver for Windows. The program can be used to create and solve polyform puzzles. It supports various grids as well as custom or automatically generated piece sets. The user interface is available in German and English.
March 23, 2026
Two 3D-printing templates have been updated: Hexiamond Puzzle and Tetracairo Puzzle. The updated versions feature an improved storage box and an optimized sliding lid.
March 5, 2026
Online solvers have been added for some puzzles. The solvers run directly in the browser; no installation or download is required.
