We have three blocks, A, B and C. One medium black square is in block A. To the left of block A we have block B which contains one medium yellow square. Finally, there is block C which is above block A. It has a medium blue square and a medium black square. The medium blue square is touching the bottom edge of this block. Below the medium black square there is a medium yellow square. Below the medium black square and the medium yellow square is the medium blue square.
Is there a medium yellow square to the left of all medium black squares?