Correct answer: Rc11...Kc4 2.Nfe3# 1...K:c6 2.Nfd4# 1.Qa5+?? 1...Kc4 2.Nce3#/d3#/Nfe3# 1...Rb5 2.Q:b5# but 1...K:c6! 1.Q:b6+?? 1...K