Correct answer: Nc21...K:f2 2.Rf1# 1...Qf4 2.Qg2# 1...Q:e4 2.Qg3# 1...Q:g5+/h:g5 2.N:g5# 1.Nd6+?? 1...Qf4 2.R:f4#/Qg3#/Qg2#/Q:f4# but
