Regular polyhedron-based logical puzzles

A polyhedral puzzle comprising:

• an assemblage of elements each provided with at least one outwardly exposed indicia-bearing planar face;
• means maintaining said elements together in a solved configuration of said assemblage defining a polyhedron with each face of said polyhedron constituted by a plurality of said element faces having a prescribed indicia array, and means permitting groups of said elements to be rotated about at least four non-orthogonal axes of said polyhedron such that said faces of said rotated elements constitute portions of other ones of said polyhedron faces, said rotations resulting in the interchanging of said elements among said groups thereof and disordered arrays of indicia on the faces of said polyhedron.

A tetrahedron-shaped puzzle comprising a plurality of puzzle pieces, each such piece having at least one externally visible surface with visually distinct indicia thereon, each such piece having means for maintaining that piece in assembled movable relation with respect to other such pieces for shuffling of said puzzle and including pieces located at each corner of said puzzle, respectively.

A shiftable element puzzle comprising:

• a plurality of elements each provided with at least one equilateral triangular face, means maintaining said elements in a regular octahedron configuration with each face of said octahedron being constituted by a plurality of said triangular faces, and means permitting groups of said elements to be rotated about axes perpendicular to the faces of said octahedron such that said octahedron faces are selectively constituted by differing combinations of said triangular faces.

A tetrahedron-shaped puzzle comprising a plurality of puzzle pieces, each such piece having at least one externally visible surface with visual distinct indicia thereon, each such piece having means for maintaining that piece in assembled movable relation with respect to other such pieces for shuffling of said puzzle.