SOMA Easy · figure 18 of 22
Hollow cube
From the front
Easy · 223 solutions
The challenge
Build this figure with the seven Soma cube pieces. Use all of them: 27 cubes.
Some cubes are hidden behind others: that is why the solution is also shown from behind and from below: all six sides.
It is the cube without its centre cube, which goes on top. From outside you cannot tell.