43
This number is a prime.
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The Fifteen Puzzle can be solved in 43 moves using
"multi-tile metric." [Norskog]
Submitted: 2010-12-12 18:03:59; Last Modified: 2011-01-27 20:20:21.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell