a multi - dimensional puzzle for a way to relieve stress and to provide entertainment . the multi - dimensional puzzle includes a cylindrical base member having lateral slots and a longitudinal slot and a bore ; two tubular members also having two lateral slots and a longitudinal slot and a bore ; two planar members each having two slots ; an arcuate plate member having two slots ; three arcuate pieces one of which has a longitudinal slot ; and three slot - filling members . all of the pieces and members are placed in such a way to form a solid cylindrical structure .