Correct answer: Q:f51...N:c3+ 2.R:c3# 1.Q:f5! (2.Q:f4#/Qg4#/Qe4#) 1...Bf1/R3h4/R:g3/B:d2/R5h4 2.Qe4# 1...N:c3+ 2.R:c3# 1...