There are three blocks. Lets call them A, B and C. Block A contains a medium black square and a medium yellow square. Below the medium yellow square is the medium black square. Block B is to the right of block A. It has a medium blue square. Below the medium blue square is a medium yellow square. Finally, we have block C. It is to the right of block A. It contains one medium black square.
Is there any medium black squares below the medium thing that is below a medium blue square?