Correct answer: Qd11...d5 2.Nc5# 1...Nf4 2.Nf2# 1...d3 2.N:d6# 1.Bf5+?? 1...Kf3 2.Qf1#/Qf2# but 1...K:f5! 1.Q:g2+?? 1...Nf3 2.Qe2#/Q: