The Devils Square Wood Puzzle | Hard Brain Teaser for Adults physics teach school The perfect blend of form

The perfect blend of form and function

No ink or paints are used in the puzzle

and whatever else interesting I may run across

This puzzle is packed unsolved with the last piece sitting on top

The Devils Square Wood Puzzle | Hard Brain Teaser for Adults physics teach school The perfect blend of formAnother Devil of a puzzle in our popular Devil's series. (See Devils Egg and Devils Cube Also) This one has 10 fiendishly shaped pieces that will fit back into a square in the box provided. Has a solid wood cover also. If you would like to purchase laser engraving for this item, please supply text in box. Level of Difficulty: Level 5 Materials: Wood