Abstract: A puzzle kit includes a rectangular frame of interconnected side members which forms a border for a working area designed to receive a plurality of different puzzle pieces. The side members of the frame include a plurality of holes extending therethrough. The puzzle pieces are provided with a plurality of transverse passageways extending through the puzzle pieces so that when the puzzle pieces are properly arranged within the working area, the holes and passageways are generally aligned. Elongated pin elements are inserted into the aligned passageways and holes to maintain the puzzle pieces at a fixed position within the frame member. When not in use, the frame member, with assembled puzzle pieces and locking pins, may be stored by inserting the frame into a channel formed in a base member. The non-assembled puzzle pieces may be stored by inserting the pin elements through passageways in the puzzle pieces and then inserting the pin elements in cavities formed in the base member.