In each round, there is tile denomination "2" (with a probability of 90%) or "4" (10% chance)
Press the arrow keys a player may remove all the tiles of the game field in one of the 4 sides. If the dropping of two tiles of the same denomination "raid" on one another, they stick together in a face value equal to the sum of tiles have incorporated. After each turn in the free section of the field there is a new tile face value "2" or "4". If you press the tiles or the location of their face value does not change, the progress is not made.
For each compound game points are increased by the face value of the resulting tiles.
The game ends if, after the next move is impossible to perform an action.
