Correct answer: Nd51...Qf6 2.e:f6# 1...Q:e5+ 2.R:e5# 1...Q:g6 2.Bh3#/Be6#/Bd7#/Bc8# 1...Qe6 2.B:e6# 1...Qd7 2.Be6#/B:d7# 1...Qc8 2.Be6#