Correct answer: f41...Be3/Bf4/Bg5/Bh6/Bc1 2.N:c3# 1...Nf5 2.f3#/Bf3# 1...Rd5 2.Qd3# 1...R:d4 2.Qe6# 1...Rf4 2.Ng5# 1.f4! (2.d5#)
