Patent ID: 7309064

Claim:
A puzzle that provides for rearranging different pieces about a first fixed hub, the rearrangement of the pieces changing a pattern formed from the pieces, the puzzle comprising: a plurality of generally trilateral pieces having three sides, the sides of the trilateral pieces following a curvature, each of the trilateral pieces comprising two convex sides and one concave side, the convex sides including gear teeth while the concave side does not include gear teeth; and a plurality of generally quadrilateral pieces having four sides, each of the sides of the quadrilateral pieces following the curvature, and at least two of the sides of each the quadrilateral pieces being convex and having gear teeth adapted for mating with the gear teeth on the trilateral piece, so that by surrounding the fixed hub with the trilateral pieces such that the trilateral pieces are separated by the quadrilateral pieces a continuous round friction enhancing surface is formed, so that the round friction enhancing surface can be used to rotate the trilateral and the quadrilateral pieces together.