We have three blocks. Lets call them A, B and C. Block A is above C and block C is above B. Block A contains a medium yellow square. Block B contains a medium yellow square. A medium black square is below the medium yellow square. And block C contains a medium black square. A medium yellow square is touching the bottom edge of this block. It is below the medium black square.
Is there a medium yellow square which is above a black square that is in block B below all medium black squares?