Correct answer: R:d21...Qe7/Qf7/Qg7/Qh7 2.Qb5#[A] 1...Bc6 2.Q:c6# 1...Ng6/Nh7/Ne6 2.Be6#/Qe6# 1...Nd7 2.Be6#/Qe6#/Qg8#/Qf7#