Correct answer: Qh31...f:e5 2.Rf4# 1...Nh5/Ne2 2.R:f6# 1...Nf1 2.Qf4#/R:f6# 1...N:f5 2.Qf4# 1.c:d4?? (2.Rf4#) 1...N:f5 2.Qf4# but 1...K:d4!