Convolution Puzzle
Stewart T Coffin - Design #30Improved Cluster Buster Puzzle
Stewart T Coffin - Design #49Four Corners Puzzle
Stewart T Coffin - Design #6Twelve point Puzzle
Stewart T Coffin - Design #33Vega Puzzle
Stewart T Coffin - Design #46Seven Woods Puzzle
Stewart T Coffin - Design #42Diagonal Star Puzzle
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