It was created as an Xmas Present of 2005.
The appearance looks like aSecret Box, though there isn't any Mosaic pattern on the surface. On thetop, there is a small decoration of a tree. You can find 2 plates you can move freely. Usually you move one plate at first. But, in this case thatwould be wrong. The important point is how to open the 2 plates. It takesonly 4 ways to open the final plate. But, it may be difficult withoutknowing the solution. The small tree on top is also a hint.