We have three blocks. We call them A, B and C. There are a medium black square and one medium yellow square in block A. There is also a medium blue square in this block. The medium black square is touching the bottom edge of this block. The medium yellow square is below the medium blue square. Below the medium blue square and the medium yellow square is the medium black square. Block B is to the right of block A. It contains one medium yellow square. Above block A there is block C. It has one medium black square.
Are all medium yellow squares far from a medium black square?