Patented in America in 1975, the somewhat swirled pieces of this puzzle by Eldon Vaughn must be disjoined and then put back together. "I once found a smaller version of this puzzle about twenty years ago in America, but considered it impossible to solve at the time. We have made a new version maintaining the difficulty of the original and licensed it for the Cast Puzzle series.
This is without a doubt among the most difficult of all puzzles. Don't use too much force - the pieces should just slide apart."
The key word is twist
Difficulty Level: 6 of 6
Ages 10 and up