We have three blocks, A, B and C. Block A contains one medium blue square and one medium yellow square. A medium black square is below the medium blue square. Below the medium yellow square there is the medium blue square. The medium black square is below the medium yellow square. Block B is to the right of block A. It has a medium black square. Below block B there is block C with one medium blue square in it. One medium black square is also in this block. Below the medium blue square there is the medium black square.
Is there any medium blue squares below a medium black square?