With this sophisticated interlocking puzzle, two pieces of the same color with different designs have to be puzzled out of a three-dimensional grid frame and later put back into the puzzle. For the first wooden part, 21 steps are required for the removal, and 3 more for the second. There is only one solution.
Playing time: 10 - 15 minutes
Learning objective: spatial thinking are written in German
Author: Dr. Christoph Lohe, Germany, 2018
Design: ROMBOL
Material: Helvea wood, Samena wood