i1Challenge app for iPhone and iPad

The game is about sorting numbers in cells from 1 to 15 in ascending order starting from number 1 in the top left corner. There is a blank cell where you can move a number in from any adjacent cell. Once moved it leaves a blank cell behind. You have to take advantage of the blank cell in order to sort the numbers and solve the game.

The game has two levels with best score registered for each level. The second locked level follows the same logic, but is more challenging since the numbers are from 1 to 24. It is unlocked after the completion of the first level.

Numberedcells goes on even when you solve both levels, because every time a game is launched numbers are placed into different positions.

Numberedcells is completely free to play. There are optional smart movement hints that help you improve your score by placing a number in its correct position with one button click.