Correct answer: N:d51...Bf7/Be6 2.R:a8# 1...b:c4 2.B:c4# 1...Rd1/Re5/Rf5/Rg5/Rh5 2.Q:d1# 1.N:a8?? (2.Nab6#) 1...b:c4 2.B:c4# but 1...R:c