Because of the shape count you need to get rid of the cyan block. The only way to do so is by changing its color to green. However, the block is immovable so you gotta push it with another block. You will realize that the purple block can't reach the cyan one without help which is why the green block needs to aid. Due to the force fields however, green can't reach cyan either so you have to use both purple and green to be able to get the purple block, which is not blocked by the force field, out and help cyan. Try to do this with effective stacking of blocks on the right side so that you can move the purple away from that little area.
Play Level "Be upper"