Few pieces unite mechanism and growth so well. Each movement is simple; The amazing thing appears when that simplicity is repeated until an unexpectedly large quantity is produced.
The Tower of Hanoi
Riddle statement
There are three rods and a tower of 7 discs of different sizes, stacked from largest to smallest on one of them.
You can only move one disc at a time and you can never place a large disc on a small one.
What is the minimum number of moves necessary to move the entire tower to another rod?