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 (nutcase) can enjoy trying to change the wording on the bolt from ‘nut-case’ to case-nut’. The key theme is “Interlocking”. Grand Master Difficulty Level For ages 8 - 100
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