The Sliding Puzzle LELEKA is a classic sliding puzzle (also known as Game of Fifteen, Fifteen Puzzle, and many others) having 15 square tiles numbered from 1 to 15 in a frame that is 4 tile positions high and 4 positions wide, leaving one unoccupied position. Tiles in the same row or column of the open position can be moved by sliding them horizontally or vertically. The goal of the puzzle is to place the tiles in numerical order.
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