This is the old classic tiles puzzle game where you play it in two different modes:
1- Numbers:
Given a square of n x n for n = 2, 3, ..., 10, you need to organise the numbers from 1 to (n^2 - 1) to solve the puzzle. It is not so easy as it sound though.

2- Images:
Given a full image which has been sliced in several number of small pieces, you need to reallocate the pieces so that we get the original image back again.

Lots of leaderboards for each type of the games and more achievements to collect some titles.
Nice designs and more than 10 images to puzzle your self in the game. and the tiling goes (in the Image mode) from 3x3 upto 8x8 which I guess not an easy job to do.

Have fun ... But be careful not to get addicted to the game :-)