1.Qg4 ! threat: 2.Qf3 #

1...Se5 2.B:d5 #

1...Rh3 2.Qf5 # (B:d5??)

1...Sc:d4 2.Sd6 # (Sc3+?)

1...Se:d4 2.Sc3 # (Sd6+? f5+?)

1...Sg5 (S:g7) 2.f5 # (B:d5+? Qf5+? f5+?)

Active dual avoidance - single, double and triple