The object of this game is recreating original order of randomly shuffled numbered pieces in the least moves and time possible. 15-Pack differs from the original puzzle of 15: except standard 4x4 board, it offers 20 various game boards from 3x3 up to 8x8 size (for example, 5x6 board).

There are 16 board skins in the game, so you can select, how will appear pieces and its background.

There is also the Table of High Scores and Best Times to save your records in 15 puzzle.