Correct answer: Be41...Be4/R:a3 2.f4# 1...Re4 2.R:a5# 1.Ke7?? (2.Qd6#) 1...Be4 2.f4# 1...Rd4 2.Qe6#/Qf5# 1...Re4 2.R:a5# but 1...Bd5!
