The arcade game Stack Tower offers you to practice your reaction speed and accuracy. Your task is to build the tallest tower in the game space. There will be no shortage of building materials. They are an endless set of multi-colored slabs. They will be fed in a horizontal plane, sometimes from the left, sometimes from the right, or vice versa. Stop the moving slab over those already installed as precisely as possible so that the edges are not cut off in the Stack Tower. The smaller the surface of the last installed slab, the more difficult it is to install the next one.
