Patent ID: 8302967

Claim:
A puzzle assembly comprising a rotation shaft, a plurality of rotation plate members having slide grooves on the outer circumference thereof and inserted onto the rotation shaft, a plurality of puzzle pieces engaged with the slide grooves movably, wherein at least two of the rotation plate members are coupled together and rotate simultaneously, wherein the rotation shaft comprises a rotation shaft body, and a nut connected to the rotation shaft body detachably, so as to increase or decrease the number of the rotation plate members, wherein the rotation shaft further comprises a plurality of key members, and a plurality of openings into which the key members are inserted, the openings formed on the rotation shaft body, wherein each of the rotation plate members comprises a penetration hole into which the rotation shaft body and the key member can be inserted, and wherein the at least two rotation plate members that are coupled together and that rotate simultaneously are coupled together by the key members being inserted into the plurality of openings formed on the rotation shaft body and inserted into penetration holes of the at least two rotation members that are coupled together and that rotate simultaneously.