There exist two blocks, called AAA and BBB. Over block AAA is block BBB. Behind this block there is block AAA. A medium blue square and a medium black square are within block AAA. Block AAA covers another medium blue square which is under the black object. Under medium blue square number one there is the black shape. Medium blue square number one touches this thing. A medium blue square is covered by block BBB.
Where is the black shape relative to medium blue square number one?