Game goal is to empty the board by removing groups of tiles with the same picture. If you click such group, it will vanish from game board. The blocks that are on top of the removed group will fall down. You should try to take off as many blocks as possible with a single click. The more blocks you destroy simultaneously - the higher score you get.
There are three levels (easy, normal, hard with 4, 5 or 6 different blocks). The game is over if no more moves are possible or all the blocks are off the board.
If the number of remaining blocks is less 10 (level 1), 15 (level 2), 20 (level 3) an extra bonus (maximum 1100 points) will be added to your score. Otherwise points will be subtracted.