Puzzle Box *SERIAL NUMBER* 001 - 100

* This is Not a physical product *

Choose your own S/N!

*No purchase required*
If you do not choose a S/N one will be assigned to you at random. 

If  you are not familiar with our Puzzle Box product line we would suggest to start with the 10th Anniversary variant; as the solution to this classic may inform you as to how you might solve the subsequent versions.  Each variant builds on the ideas presented in previous iterations.

DC = Dual Clutch.  SC = Single Clutch.

10th Anniversary: DC & SC Compatible - Two (2) main components, plus spares and accessories.