Correct answer: Nc61...Rc6/Rc5/Rc8 2.Qf7# 1...Rc4 2.Qf7#/Q:c4# 1...Rb7 2.Qc4# 1...Ra7/Rd7/Re7 2.Qc4#/Qb5# 1...Rf7 2.Q:f7#/Q
