🔧 Tri Puzzles – Simple, Satisfying, Sneaky

Looking for a smart little challenge?
Inspired by traditional Japanese joinery, this puzzle is all about precision and patience.
No glue. No magnets. Just three interlocking pieces that really don’t want to come out.

🧩 How to play:

Assemble the three inner pieces as shown.

Place them inside the base.

Cover and (optionally) screw shut with three M3×5mm bolts.

Now... try getting them back out.

🎯 Details:

Difficulty: Easy

Solve time: ~30 minutes

Recommended age: 10+

No tools or force required — just a curious mind!

A perfect print-and-play desk puzzle, gift, or brain teaser to share.
Challenge your friends. Trick your family. Just don’t forget how to solve it yourself. 😉

Rafts:

No

Supports:

No

Resolution:

0.2 mm

Infill:

20 %

There is a hint below.

Hint image