Correct answer: Qb41...Qc6/Qb8/Qd8/Qf8/Qh8 2.Q:c6# 1...Nd3/Bb7 2.Nd2# 1...R:f3+ 2.g:f3# 1...Rfg5/Nf4 2.Nd2# 1...B:c4+ 2.Q:c4# 1.K