Correct answer: Rf21...e3 2.Rf4# 1.Rf4?? (2.Nf5#) 1...Ne3 2.Nhf3# but 1...Ke3! 1.R:f1?? (2.Nf5#) 1...e3 2.Rf4# but 1...Ke3! 1.Nhf3+?? 1...<