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## Description

A sliding puzzle game similar to classic picture puzzle games however instead
of completing an image you slide numbered blocks 1 through 16 into order. The
game starts with the numbers in a scrambled order, just like in the picture
puzzle. There is always one empty square into which you can slide one of the
surrounding 4 blocks. The object of the game is to slide all the blocks back
into their original numerical order. The problem is that since you have only
one empty square to work with when arranging the blocks you inevitably place
the puzzle further out of order in your attempts to solve the puzzle.

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