Two right and left handed pieces, put them together simuntaniously

Puzzle, 3 pieces, put together, take apart, you have to put the 3 pieces simultaneously together!

Puzzle, 6 pieces, put them back into the box. Solution: That it works you have to deform 2 of the 6 pieces.

Puzzle, 4 pieces with one box, create 11 different shapes with 6 surfaces

Puzzle, 12 pieces with support, very difficult 12 Rhomboederbausteine mit Sockel, Seitenlänge ca. 12 mm, Sockeldurchmesser ca.100 mm

Puzzle, 3 pieces, put together to form a golden rhombic icosahedron

Puzzle, 8 elbow pieces, put them together to four pieces, three of them with different spaces, to form one plate, there is probably one unique solu...

Puzzle, Legespiel, 10 pieces,