Correct answer: Nc51...Nh8/Nf8/Ne5/Ne7 2.Qe5# 1...Bc4/Bd7/Be8/Ba4 2.Q:c4# 1...Bd3 2.e3# 1...N:b4/Nb8/Nc5 2.Qc5# 1...Rb7/Rb8
