15 Puzzle

Classical 15 puzzle.

The 15-puzzle (also called Gem Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square and many others) is a sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing.

The board size is 4x4 with 15 number blocks randomly placed on the board

Your task is to maneuver the blocks by sliding it one by one to the empty space and arrange the number from no. 1 to number 15.