Correct answer: Na51...Rb2/Rb1/Rb5/Rb6/Nc3 2.N:d3# 1...b5 2.Rc6# 1...Ne7/Bd6 2.Bd6# 1...Nf4 2.Q:g1# 1.Bb6+?? 1...R:b6 2.N:d3# b
