Cannonball Pyramid 5x5x5

The Cannonball Pyramid puzzle consists of seven pieces, each different, which you must try and form a 5x5x5 pyramid with.

A tricky puzzle that you may find yourself getting frustrated with. Each piece is doweled into a permanent position so the shapes cannot twist into different shapes. The puzzle comes with a base which the pieces sit nicely in.

The design comes form Mike Reilly of the US.

Solution is provided.