Correct answer: Ndc71...Ng6+ 2.Q:g6# 1...g6 2.Qf6# 1...Rc7 2.R:f4# 1.Ndc7! (2.R:f4#/Nd6#/Qa2#/Qe6#) 1...Qg8/R:c7 2.R:f4# 1...Ng
