Correct answer: B:c51...Bf7 2.Q:f7# 1...Bg8 2.Q:g8# 1...b:a3 2.Bb5# 1...b3 2.Rc1# 1...c:d4+ 2.Q:d4# 1.Qc7?? (2.R:b4#) 1...b:a3 2.Bb5# 1...b3 2.Rc1#