Chain factor

Noveysha coolest puzzle today and appeared in front of you! If you are one of those people who say, mathematics and set properties - Hi, and further communicate on you! You exactly the right place! Today you will play what you like Tetris. Try today as soon as possible to collect the necessary number in combination, in order that they were falling on the playing field. By doing this you will collect points. If your field is completely filled, and it will not be on any combination - you lose!