Safecracker 50 Wood Puzzle - Difficult Math Brain Teaser for Adults hardest puzzles There will be an acrylic

There will be an acrylic cover held in place by 4 screws which will secure the letter blocks in place such that the cipher could be wall mounted if you chose or of course sit flat on a table

Using these you can create your own messages

no force is required

2017 at 4:55am PDT

Primary Goal: Fit 12 unique pieces into a square frame

Safecracker 50 Wood Puzzle - Difficult Math Brain Teaser for Adults hardest puzzles There will be an acrylicHow It Works Safecracker 50 is a handcrafted mechanical math puzzle designed for serious problem solvers. Your objective is to rotate five laser cut wooden rings until all 16 vertical columns add up to 50 at the same time! Over 65,000 permutations exist, but only one correct solution. To increase the challenge, the top four rings are notched to reveal or obscure numbers on the lower layers, turning 16 columns into 24 possible paths. Built from durable