Tours de Hanoi - Hanoi towers

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The famous Hanoi Tower Game -Hanoi Towers, originally known as the Tower of Hanoïa, is a puzzle devised by French mathematician Édouard Lucas. The game involves moving disks of varying diameters from a "start" tower to an "end" tower via an "intermediate" tower in the minimum number of moves, adhering to the following rules: no more than one disk can be moved at a time; a disk can only be placed on top of another disk larger than itself or on an empty space. It is assumed that this rule also applies to the starting configuration. Wikipedia. A small printable model in 1/10th scale or smaller makes for a great brain teaser (not easy at all).