Separate the wheel from the box, no force needed.
The gear exhibits a unique kind of movement.
Once together in its final form of beauty, the gear fixed in place in the cubic box could very well serve as a desk decoration to satisfy a kind of soothing, intellectual curiosity.
The key word is “teeth.”
Award winning puzzle: 2001 World Puzzle Design Competition. Design: Oskar van Deventer.
Level 3/6. Package size: 7,5 cm x 11,5 cm x 4,5 cm.