15 puzzle game is a sliding puzzle that consists of a frame of 4x4 numbered square tiles in random order with one tile missing. The object of the puzzle is to place the tiles in order. Its also called Gem Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square.
Features:
8 (3x3), 15 (4x4), 24 (5x5), 35 (6x6) block boards
Scoreboard and resume after exit features
Time counter
Train your brain now!