Abstract: A puzzle device includes a plurality of separate blocks that are assembled together as a unit which can be manipulated between different configurations. At least one magnet is arranged along an edge of at least certain of the blocks to attract the edge of another block in juxtaposition with it. The two juxtaposed blocks are able to be manipulated to rotate about an axis formed along the two juxtaposed edges, a stronger attractive force being exerted at the axis between the two juxtaposed blocks, and a weaker attractive force is exerted along the juxtaposed edges parallel to but remote from the axis. This enables faces of the blocks in contact to be split apart and rotated about the axis until another pair of faces come into contact, such that, in this new position, a stronger attractive force is again exerted at the axis and a weaker attractive force is again exerted remote from the axis, the stronger attractive forces holding the separate blocks together as a unit in all the configurations of the unit.