Correct answer: R:c71...Qb5 2.Q:b5# 1...Nb4 2.R:d4# 1...Ba7 2.N:c7# 1.Rb5+?? 1...Q:b5 2.Q:b5# but 1...Kc4! 1.R:c7! (2.Nb6#) 1...Q:a3/
