Interlocking - Square Face (Improved)

Square Face (Improved) (Stewart Coffin)
Larger Photograph (66.7K)

Square Face (Improved) (Bart Buie)
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Square Face (Improved) - Partially Disassembled (Bart Buie)
Larger Photograph (85.8K)
Designer:Stewart Coffin
Craftsman:Stewart Coffin (1st)
Bart Buie (2nd & 3rd)
Material:Honduras Mahogany & Limba (1st)
Padauk & Zebrawood (2nd & 3rd)

A variation of Square Face which is a variation of Pseudo-Notched Sticks. It is not at all intuitive how to disassemble this puzzle. You are encouraged to see the chapter in The Puzzling World Of Polyhedral Dissections where Stewart's drawings will clearly show you how this puzzle is made. In this version, the pieces are dissimilar and non-symmetrical. Note that Bart Buie has choosen to make a version with the neighboring pieces being slightly different lengths. Number 74A in Stewart's numbering system.
More information in The Puzzling World of Polyhedral Dissections