17.7 cm x 17.7 cm x 1.9 cm / 7 in x 7 in x 0.75 in
How can a 4 piece puzzle be so difficult?? All you have to do is insert them into the frame… It is a Stewart Coffin design (#217) originally called “Four Fit” but renamed by Stewart after Martin Gardner’s week long efforts to solve it were in vain. Martin Gardner (1914-2010) is considered the Father of Recreational Math with perhaps the greatest puzzle mind of the 20th century. Martin called it “The finest dissection puzzle of all time”.
The ¼” thick pieces are precision laser cut from 4 different hardwoods. The base and cover measure about 6” square.
Made in Florida by Creative Crafthouse under license from Stewart Coffin.
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Saturday August 18th
This puzzle was just as advertised in the little blurb on the box... fiendish. I solved it, but it took several sessions. It's simplicity is what makes me like it so much :-)