There are three blocks. Lets call them A, B and C. There are two medium black squares in block A. Medium black square number one is touching the bottom edge of this block. It is below medium black square number two. To the right of block A there is block B. It has a medium black square. Finally, we have block C above block A. It has two medium yellow squares. Below medium yellow square number two is medium yellow square number one.
Is there a medium black square which is below a medium square below all squares which are below a yellow square?