Half Hour Cube | Stewart Coffin 1975 Wooden 3x3x3 Puzzle handmade birch frame but even more so in

but even more so in schools and often nursing homes too

not a lookalike

I have been asked regularly lately to come up with a design for a large puzzle box

it is both a beautiful display and a rewarding challenge

Half Hour Cube | Stewart Coffin 1975 Wooden 3x3x3 Puzzle handmade birch frame but even more so inHalf Hour Cube is a handcrafted wooden 3x3x3 cube brain teaser designed by Stewart Coffin in 1975. Coffin estimated a half hour as a good solution time. It looks like a Soma Cube, but where Soma has 240 valid solutions, this has only one. Each puzzle is handcrafted from precision cut hardwoods by Creative Crafthouse with Stewart Coffin's permission. Includes a base and cover for display and travel. 3x3x3 cube format. One solution only. Ships unsolved.