Correct answer: N:d51...N:d3/Ne6/Nb7/Na4 2.R:d5# 1.Rb5?? zz 1...N:d3/Ne6/Nb7/Na4 2.R:d5# 1...a:b5 2.N:b5# but 1...a5! 1.Nbc2+?? 1...
