Fit all the pieces into the box and twist it closed.
Twist Them In’s container has three movable parts: A base, a rotatable lid which is attached to the base, and a removable hatch which forms the opening. The rotation is eccentric, so that the hatch can be opened only if the lid is twisted 90,180 or 270 degrees. The goal of the puzzle is to put four pentacubes into the container and close it completely. A challenging task which requires spatial imagination and mechanical insight! Design © 2021, Theo Geerinck & Symen Hovinga Made in PLA