If you give a mat of 5x4 = 20 cubelets, there are [20 above 7] = 20! It is a beautiful freak of nature that the seven simplest irregular combinations of *cubes* can form a *cube* again. If we consider the "a" and "b" pieces (a chiral pair) to be interchangeable in reflection, there are exactly half as many solutions as shown for each of the puzzles below. The puzzle contains one piece from each of the solid polyominoes of orders 2 through 7 (i.e one solid domino, ..., one solid heptomino), for a total of 27 unit *cubes*. Seven pieces made out of unit __cubes__ must be assembled into a 3×3×3 __cube__.

## Soma cube

There are seven different __Soma__ __Cubes__, though two of them are mirror images of each other. = 77520 places for the remaining seven cubelets, so 77520 fures. If you form a bar with five cubelets, there are two left.

During a lecture on quantum mechanics conducted by Werner Heisenberg.

### Soma cube

#### Soma cube

—Piet Hein __Soma__ __Cubes__ include all non-convex polycubes of order 3 (1) and 4 (6). The two castles are from Dennis Nehen's __Soma__ __Cube__ pages. Seven pieces made out of unit *cubes* must be assembled into a 3x3x3 *cube*.

The Danish mathematician , also known for his invention of the mathematical games known as hex and tac tix, stumbled upon the fact that the seven __Soma__ __Cubes__ can be put together to form a larger __cube__ containing 27 “unit” __cubes__. LAMISIL LOTION

Soma cube:

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