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|Craftsman||:||Stewart Coffin (1st, 2nd & 3rd)|
Mark McCallum (4th)
Lee Krasnow (5th)
|Material||:||Honduras Mahogany & Brazillian Rosewood (1st)|
Mahogany, Brazillian Rosewood & Primavera (2nd)
Holly & Zircote (4th)
Jatoba & Bolivian Rosewood (5th)
The Four Corners puzzle, especially the augmented version, has the appearance of four mutually intersecting prisms, By using triangular stick segments in the construction, this effect is accentuated.
The Hexagonal Prism is one example of a puzzle that results from the augmentation with triangular sticks. It uses six dissimilar pieces with a unique solution. Adding additional triangular stick segments yields the Triangular Prism. Stewart made 60 from 1974 to 1985. Number 11 in his numbering system.
|More information in The Puzzling World of Polyhedral Dissections|