ICOSOKU is a completely different 3D puzzle, an original mathematical problem. A masterpiece puzzle with multiple possibilities.
ICOSOKU JUNIOR is a completely different 3D puzzle, an original mathematical problem. A masterpiece puzzle with multiple possibilities. Blue base Junior model.
PLANETS is a 3D puzzle completely different and not so easy to solve as it seems. Rotate the planets and achieve your objective.
BRAIN STRING ADVANCED is an updated version of the original puzzle that was a real bestseller during the last decade. Move the rubber tips to untangle the knot and get the same colour on all sides. Can you do it?
Align the grooves and rotate the two halves in opposite directions. To keep your mind working for hours on end. A challenge only for the most daring.