← Paradoxes & riddles
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The Tower of Hanoi
the puzzle that would take 585 billion years
There are 3 pegs and a stack of disks on one peg, largest at the bottom. Move the whole stack to another peg, moving 1 disk at a time and never putting a larger disk on a smaller one. With 3 disks, it takes at least 7 moves.
Source: A classic puzzle, retold by INFINITE SUM and fact-checked against our curated notes
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