Simply, tightening, develops a reaction. This is exactly what the game "Slabs" offers you. In it, you just have to match the moving slabs to build the skyscraper as high as possible. Elementary control - when the left mouse button is pressed, the slab is fixed, but misses and placing the plate is not level, it is cut and so time after time, from the plates there is nothing left.Earn points, make skyscrapers more and more, set new records every now and again.