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The 15 Puzzle is a sliding puzzle that consists of a 4 by 4 frame of numbered square tiles in an arbitrary ordering with one space. The objective of the puzzle is to place the tiles in ascending order, by making sliding moves that use the empty space.
The 15 Puzzle is a sliding puzzle that consists of a 4 by 4 frame of numbered square tiles in an arbitrary ordering with one space. The objective of the puzzle is to place the tiles in ascending order, by making sliding moves that use the empty space.