Dividing method for three-dimensional logical puzzles

A method of dividing an arbitrarily shaped solid or hollow structure to define perfectly interfitting parts covering an entire outer surface of a shiftable three-dimensional puzzle, the method comprising steps of:

• selecting at least one guiding polyhedron;
• defining an axis system based on the at least one guiding polyhedron, wherein axes of the axis system pass through all or a subset of geometrical centers of the faces, edges and vertices of the guiding polyhedron;
• associating, with each axis, a planar geometrical figure defining a cutting contour for sectioning the structure when the contour is projected along the axis into the structure to be divided;
• selecting a projection tunnel through which the cutting contour is to be projected, the projection tunnel defining how the cutting contour is to vary in size and shape when projected along each respective axis into the structure to be divided;
• and
• dividing the structure into perfectly interfitting parts covering the entire outer surface of the puzzle using each of the contours associated with each of the one or more axes of the axis system.