The 15 puzzle (slide)

Description:
Fifteen puzzle is a popular puzzle game invented in 1878 by Noah Chapman.
The game represents a set of dominoes in square box.
Each domino has it's own number printed on it.
Length of the box is four times bigger than the length of dominoes in a set of 15 elements, thereby, there is only one free square field left in the box.
The idea of the game is by moving the dominoes in a box order them by number, preferably making as little movements as possible.
Languages:
English, Russian
Requirements:
Compatible with iPhone and iPod touch.
Requires iPhone OS 3.0 or later.

