The Penta-Tri is a packing puzzle. The idea is
to move all 12 moveable pieces from one side of the divided tray to the other. The pieces
are arranged in 3 layers, and there are several non-moveable pieces in each side of the
We rate the Penta-Tri puzzle as Difficult. There are only 2 solutions.
The Penta-Tri is made of Semana hardwood and comes with an 8 page
booklet that contains the solution diagrams. The booklet also gives some challenges to
construct other shapes from the pieces when they are not in the tray.