Correct answer: Nc41...N:b7+/Nc6+ 2.R:b3# 1...Nc4 2.R:b3#/Nc5# 1...Qc3 2.Nc5#/Rb2#/Rca2# 1.Nd5? (2.Nc5#) 1...Ne6[a] 2.Nb4#[A] 1...