This is the traditional 15-Puzzle with the option to change the number of tiles between 3 and 99 tiles. This makes this puzzle suitable for any age or skill level.
The tiles should be ordered in ascending order, starting with number 1 in the upper left corner and continue row wise until all tiles are ordered correctly. There is one empty spot in the square. A neighboring tile can be slidden into the empty spot by clicking on that tile.
This puzzle is available for Android devices and can be installed from Google Play Store.
Enjoy the puzzle and good luck!