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JC's Lock: A Challenging 3D Wooden Puzzle LockUnlock the Mystery of this Wooden Lock PuzzleImmerse y…

Made of wood and metal by Jean-Claude Constantin, the objective is to open up the box. You can even …

A beautiful wooden lock that doesn't need a key to open it.  Move the metal sliders around in their …

The goal of the Streichholzbox (Matchbox) looks simple enough - open the box to put something insi…

The objective of this puzzle is to figure out the right "combination" to open the lock. The solutio…

An extreme example of the multiple-peg maze concept. Each of the 20 pegs must move through one of fo…