Convolution blockhead - design by Stewart Coffin 4x4x4 cube
What an interesting and difficult puzzle designed by Stewart Coffin. 7 complex pieces will assemble sequentially to form a 4x4x4 cube. I like this one alot. Really tests the spatial relationship skills. You will likely feel like a blockhead after working hours to solve this one. Measures about 2 3/4" cube.Excellent fits on this puzzle make it challenging to even dis-assemble, but of course the real challenge is in the assembly.
Convolution Blockhead A Stewart Coffin Wood Puzzle Brainteaser
Rob's Puzzle Page - Assembly and Packing
Convolution Puzzle - Stewart Coffin Desing - Handmade wooden
Convolution Blockhead A Stewart Coffin Wood Puzzle Brainteaser
Convolution blockhead - design by Stewart Coffin 4x4x4 cube
Patio Block Stewart Coffin 82 Wood Puzzle
PuzzleMad: 2012
PuzzleMad: A Bountiful Bonanza of Beautiful and Positively
June 2012 - PuzzleMad
Patio Block Stewart Coffin 82 Wood Puzzle
Stewart Coffin Neil's Puzzle Building Blog
PuzzleMad: 2012
