Answer: A Soma cube.

This is a 7-piece puzzle that assembles into a cube. It is very soluble: apparently, there are at least 240 solutions!

You can make countless other three-dimensional shapes out of the 7 pieces as well.

This puzzle must be good for developing our visual-spatial skills! And it’s fun!

If you can’t find the puzzle to buy online or in a shop, you can easily make one yourself out of one-inch wooden cubes. That’s what I did.

Here are some you tubes showing you some solutions:

Here are some links giving you more information:

Soma Cubes