Are you looking for a puzzle that is
tricky to solve at first, but then can be used to store things after you solve it? Then
the Treasure Chest puzzle is for you. As the name would imply, quite a lot of useable
space rests inside this small puzzle. This space is in the form of a drawer - it makes
storing things that much easier.
As a puzzle, we rate it as Moderate. It's
rather tricky the first time, then easy.
A mechanical puzzle is a self-contained object, composed
of one or more parts, which involves a problem for one person to solve by manipulation
using logic, reasoning, insight, luck, and/or dexterity. - Jerry Slocum