Tetris

Everyone's favorite game "Tetris" and now on your computer! Colorful figures of different shapes plummeting down. They consist of squares of equal size. Your task - to put these figures in such a way as to obtain solid cooperate for these boxes, without gaps. Each number that you have assembled will be reduced. Use hot keys in order to move pieces left and right. To turn the figure in space - press the "up" and to omit - "down."