TileBlock

-> If there are neighbouring tiles with same number, they will add up upon the tile you tapped, and they clear out.
-> else, If there are vacant tiles around the tapped tile, the number will split to the vacant tiles, leaving you with a blank tile in the middle, be ware to not loose numbers (the division must be even).
-> else, if there are no tiles vacant and no number like the one tapped, the number decreases and you just lost one tile.
-> tapping a blank tile, the tile disappears for ever...
-> The aim of the game: To have just one tile left, with highest number as possible.

There are 28 levels, how many levels can you clear, how few numbers did you loose ?