Correct answer: Rg21...Ng1/Ng5/Nf2/Nf4 2.Rg5# 1...e:d5 2.Re8# 1.Kc4?? zz 1...Ng1/Ng5/Nf2/Nf4 2.Rg5# but 1...e:d5+! 1.Rgg7?? zz 1...N