Pentamino is a puzzle game, using up to 12 different and unique pieces to fill a large number of trays or volumes of different shapes, in 2 and 3 dimensions. The thousands of possible solutions may give you a few headaches, but they're also a lot of fun. What's more, the parts sets can be complete, even if there are too many for the chosen tray/volume. You'll never be done with this version, believe me!