Correct answer: c71...Nd1/Ne2/Ne4/Nb1/Nb5/Na2/Na4 2.Nb5# 1...N:d5 2.Nc8# 1...R:f4 2.B:f4# 1...Rf6/Rh5 2.f5# 1...Re5 2.f:e5# 1...R