ABSTRACT
In Chapter 1, it was shown that plane dissection puzzles have much greater recreational potential when the same set of puzzle pieces assembles into many different problem shapes. The only three-dimensional puzzles described thus far having this property have been a couple of the cubic block types that form different rectangular solids and the Squirrel Cage burr set. Dissections between two different common geometric solids present horrendous diffi culties and in most cases have been proven impossible. Yet, the search goes on for three-dimensional puzzles that not only assemble into different geometric shapes but also interlock. Three designs that succeed to some extent are given in this chapter.
