Huzzle Cast Nutcase Puzzle Game

There are two goals to the Cast Nutcase created by the Dutch puzzle inventor, Oskar: 1. Remove the small nut by disassembling the cast nutcase. 2. Cast puzzle enthusiasts (nutcases) can enjoy trying to change the wording on the bolt from 'nut-case' to 'case-nut'. The key word is 'Interlocking'.