Are you looking for a very difficult puzzle for
your very smart Uncle John? Does he always manage to solve every puzzle you get him right
away?
Consider these diabolical puzzles – they are
the most difficult puzzles we can find. These really difficult puzzles are priced from as
little as $11.00 all the way up to $450.00.
“A mechanical puzzle is a self-contained object, composed
of one or more parts, which involves a problem for one person to solve by manipulation
using logic, reasoning, insight, luck, and/or dexterity.” - Jerry Slocum
