Correct answer: Bc51...Qh4/Qh3/Qh2/Qh1/Qh6/Qh7/Qh8/Qg4/Qf3/Qe2/Qd1/Qg6/Qf7/Qe8 2.Qc5#/Nd6# 1...Qc5 2.Q:c5# 1...Q:
