The Puzzling World of Polyhedral Dissections
By Stewart T. Coffin

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Chapter 10 - Intersecting Prisms
The Triangular Prism Puzzle

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By adding 12 more triangular stick segments to the Hexagonal Prism Puzzle, it is transformed into a most fascinating geometrical solid having the appearance of four mutually intersecting triangular prisms. With 42 blocks used in the construction, many design variations are possible depending upon how some of them are attached. One version having six dissimilar pieces is shown in Fig. 118.

Fig. 118

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