Great time-killing game, and power friendly!
Want to kill some time on a long trip but don't want to waste too much battery on your phone for all kinds of fancy game? This is a game satisfied all your needs.
This game was designed to be power friendly by setting the background black. Most of the power consumed by a game was used on display all kinds of fancy graphs and colors. Black background can help extending your battery life for longer use, especially for LED display.
Sort the puzzle to its original form
1 2 3
4 5 6
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15
You are only allowed to move the number adjacent to the blank piece. Tap on the number to move it.
Want to support the developer? please click on the ads or download the deluxe version, which is ads free.