## preliminary remarks

The programs run under Windows 10, Windows 8 and Windows 7.

The solutions of all figures of this website were calculated with the programs offered here.

The programs are packed as zip-files. After the unpacking they are executable without further installation.

At the first start of the programs a window opens with the message: “Windows protected your PC”. Click on ‘More info‘ and in the following window on ‘Run anyway‘.

## Pentomino2D On an area of 20×25 fields Pentomino2D Solver can be used to create your own arbitrarily shaped 2D figures consists of 2 to 12 Pentomino pieces and then calculate and display solutions for these. The figures created can be saved.

For figures consisting of 12 pieces, the solutions are symmetric-cleaned, which means that if there are several solutions that are identical except for symmetry, only one solution is counted and displayed. For figures consisting of less than 12 pieces, the solutions are not symmetric-cleaned.

## Pentomino3D Pentomino3D Solver solves any 3-dimensional Pentomino figure consists of 2 to 12 Pentomino pieces up to a maximum size of 5x8x12 cubes. Of course Pentomino3D can also solve 2-dimensional figures, as long as they fit into a field of size 8×12. The created figures can be saved.

For figures consisting of 12 pieces, the solutions are symmetric-cleaned, which means that if there are several solutions that are identical except for symmetry, only one solution is counted and displayed. For figures consisting of less than 12 pieces, the solutions are not symmetric-cleaned.

## Soma With the program Soma you can create arbitrarily shaped Soma figures and display solutions.

The created figures can be saved.

The solutions are symmetric-cleaned, which means that if there are several solutions that are identical except for symmetry, only one solution is counted and displayed.

A very nice collection with several thousand different Soma figures can be found on the page of  Thorleif Bundgård.

## Hexiamond With Hexia you can create arbitrarily shaped Hexiamond figures on an area of 16×25 fields, which consist of 2 to 12 pieces and display solutions. The created figures can be saved.

For figures consisting of 12 pieces, the solutions are symmetric-cleaned, which means that if there are several solutions that are identical except for symmetry, only one solution is counted and displayed. For figures consisting of less than 12 pieces, the solutions are not symmetric-cleaned.

## One-Sided Hexiamond If you use the Hexiamond tiles one-sided, as described on the one-sided Hexiamond page, the game set consists of 19 parts. On an area of 16×25 fields you can create arbitrarily shaped Hexiamond figures for this extended game set and calculate and display them for these solutions.

The solutions are not symmetry-cleaned.

## Heptiamond

With the Heptiamond Solver you can create figures for the heptiamond puzzle, calculate solutions and display them. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

## Tetrahex On an area of 15×15 fields you can create your own Tetrahex figures with Tetrahex and then calculate and display solutions for them. The created figures can be saved.

The solutions are symmetric-cleaned, which means that if there are several solutions that are identical except for symmetry, only one solution is counted and displayed.

## Tetracube With the program Tetrakubus you can create arbitrarily shaped Tetrakubus figures, calculate solutions and display them. The created figures can be saved.

The solutions are symmetric-cleaned, which means that if there are several solutions that are identical except for symmetry, only one solution is counted and displayed.

## Tangram With the program Tangram you can create figures for the Tangram puzzle, calculate solutions and display them. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

## Kreuzbrecher   With the program Kreuzbrecher you can create figures for the Kreuzbrecher puzzle, calculate solutions and display them. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

## Pythagoras  With the program Pythagoras you can create figures for the Pythagoras puzzle, calculate solutions and display them. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

## Tetrabolo  With the program Tetrabolo you can create arbitrarily shaped figures for the Tetrabolo puzzle, calculate solutions and display them. The figures can consist of 2 to 14 pieces. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

## Tetrahops

With the program Tetrahops you can create arbitrarily shaped figures for the Tetrahops puzzle, calculate solutions and display them. The figures can consist of 2 to 16 pieces. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

## Gemini

With the program Gemini you can create arbitrarily shaped figures for the Gemini puzzle, calculate solutions and display them. The figures can consist of 2 to 10 pieces. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

The reference to this 3D puzzle comes from Albert Weiss. He has also published a very nice solution video on Youtube .

## Pentacube

With the program Pentakubus you can create arbitrarily shaped figures for the Pentakubus puzzle, calculate solutions and display them. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.

You can download the program Pentakubus in 2 variants. The small version of the program is 1250×800 pixels, the large version 1500×1000 pixels. The screen resolution must be sufficient. With the small version figures with maximally 12x10x5 edge lengths can be represented, with the large version it is maximally 16x10x8.

## Ball Pyramid

With the solution program for ball-pyramid puzzles you can create arbitrarily shaped figures for several ball pyramid puzzles, calculate solutions and display them. The created figures can be saved.

The solutions are not symmetry-cleaned, that means if there are several solutions which are the same except for symmetry, all solutions are counted and displayed.