Warning — this deceptively simple puzzle — as in, "just put the 4th piece into the opening with the other three pieces" — is only for people who really really like to figure out difficult problems! It's called Martin's Menace because it evidently took famous British puzzler Martin Gardener 2 days to figure out (and some say he never did.) Either way, some of our very own customers have beat his record. So — torture for most, fun for some, take your choice!

made by Creative Crafthouse — click here to visit their website