Correct answer: Qd31...Qf2 2.Nd2#/Nba5#/Rb8# 1...Qf1/Qf5/Qf7/Qe2 2.Nba5#/Rb8# 1...Qf4/Qf6/Qg4 2.Nbd4#/Nba5#/Rb8# 1...Qf8 2.
