Correct answer: Kd51.Kd5! (2.Ne2#/Ndf3#/Ndf5#/Nc2#/Nb3#/N:b5#) 1...R:h5+/e:d6 2.Ndf5# 1...Rg6/Nf3 2.Ndf3# 1...Nb3 2.N:b3# 1...N