Take the 3 parts apart and put it back to the original shape, that is the objective of this great metal puzzle. A word from the designer: "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. This is without a doubt among the most difficult of all puzzles. Don't use too much force...the pieces should just slide apart."