This game is highly addictive and requires a lot of quick clicking and quick thinking. A blueprint is given at the top with instructions as to how many blocks should be in each area. Your job is to switch the blocks around to match the blueprints. Each level gets more difficult. To move a block, simply click it from one stack and then click again on another stack to drop it. Make sure you pay attention to the numbers on the blueprint, because everything has to be perfect in order to move on to the next level.