Patent ID: 8544849

Claim:
A three-dimensional, self-supporting jigsaw puzzle, comprising: a multiplicity of puzzle pieces resulting in a hollow body in the assembled state, each puzzle piece having an upper face associated with the exterior of the hollow body, a lower face associated with the interior of the hollow body, an edge extending between the upper face and the lower face, and at least one connecting region extending from the edge in the form of a recess or an extension, wherein, for two or more adjoining puzzle pieces, at least one of which is a puzzle piece having a convexly curved upper face, the course of the mutually facing edges of the adjoining puzzle pieces between the upper face and the lower face is determined by the bisector of a dihedral angle formed between two straight lines which intersect on the bisector and which extend from an upper end point of the associated one of the mutually facing edges of the two or more adjoining puzzle pieces to an upper end point of an opposite edge of the same puzzle piece, or, in the case of a puzzle piece having a convexly curved upper face, to a first maximum in the direction of an opposite edge of the same puzzle piece, and in that in the connecting region the circumference of an edge of each extension is at most exactly the same size as the smallest circumference of an edge of a recess in an adjoining puzzle piece corresponding to a respective extension.