A few weeks ago I wrote about six wooden puzzles I found.
One of them is the famous Soma Cube invented by Piet Hein and consist of seven pieces made out of unit cubes and must be assembled into a 3x3x3 cube [more information Soma Cube can be found at Wikipedia.
The pieces can also be used to make a variety of other interesting 3D shapes. There are also more interesting shapes you can make with Soma cube.
Category: All Puzzles