Correct answer: Na31...Kf3 2.Rg3# 1...Rg3/Rg5/Rg6/Rg7/Rg8/Rh4 2.Q:e2# 1.Re5+?? 1...Kf3 2.Nd4#/B:g4#/Qf1#/Q:e2# but 1...B:e5!