Fifteen with Training

Fifteen - a popular worldwide puzzle. Is a set of square tiles with numbers enclosed in a square box, which remains empty one field. The purpose of the game - moving the tiles in a box to place them in order, spending as little time. You can play with 9, 16 or 25 tiles. If you've never played this game, the mode of "Training" will help you step by step to learn how to assemble this puzzle.