We have three blocks, A, B and C. Block C is to the left of block A and it is above block B. Block A contains two medium black squares. Below medium black square number two there is medium black square number one. There is also one medium yellow square touching the bottom edge of this block. The medium yellow square is below medium black square number two and medium black square number one. Block B has one medium black square. Block C has one medium black square. Below the medium black square is a medium blue square.
Is there a medium black square which is in block C above a medium black square that is in block B?