Correct answer: Bd21...Rd2 2.Nc1# 1...Qf3/Qg3/Qd2 2.N:d4# 1...Qf4 2.B:d3# 1...Qc1 2.N:d4#/B:d3# 1.Nc1+?? 1...Q:c1 2.B:d3# but 1...R