About this 3D model

The classic slide puzzle but in two layers! With two different possible solutions. Instructions for the assembly:- Print all the parts- Group all the parts forming the two layers correctly (notice that one layer has only 8 blocks) ***- Put the two layers in the lower part of the box, one in the top of the other- Assemble the top part of the box with glue (maybe it's necessary to sand a little the piece) wait until it gets fixed.- Mix all the pieces in the puzzle and get fun triyng to solve it!! *** The blocks are named with two numbers: the first one is the layer and the second represents the position