Correct answer: Nf51...Rb5 2.Q:b5# 1...R:a4 2.B:a4#/Qb5# 1...Rc4/Re4/Rf4/Rg4/Rh4 2.Q:b6#/Qb5# 1...Rd4 2.Q:b6# 1...Bb7 2.Q:b7#
