The cube

Easy · 240 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.

The figure it all starts from: the 3 × 3 × 3 cube. Piet Hein invented it in 1933; it has 240 distinct solutions.