There are three blocks. We call them A, B and C. Block A has a medium yellow square. Block B is above block A. It has a medium black square. Below block A there is block C which has three medium black squares. Below medium black square number three and medium black square number two there is medium black square number one. Medium black square number two is below medium black square number three.
Is there a medium square that is above a medium square above all medium squares which are above medium square number two?