Correct answer: Qd31...Ka1 2.Qg1# 1...Bb2+ 2.Rc3# 1...Bc1 2.Rca2# 1.Qg1+?? 1...Bc1 2.Q:c1# but 1...K:c2! 1.Rc1+?? 1...Kb2/Ka2 2.Q<