Up-Down

Packing the five pieces in Up-Down is a complex problem.
Both top and bottom of the box have doors.
Pieces inside impede opening the doors to insert any others.
Finding the unique solution requires special packing skills and geometric insight.
In difficulty rank, we give this peculiar puzzle four stars.

Get Up-Down here: Order your customized puzzle locally printed via the Treatstock hub.

Get the STL's here: Order the STL's for DIY 3D print via Paypal and receive the files by email.

price/$12.62