Correct answer: Re61...Bg7/B:h6 2.N:d6# 1...Ng2/Ng6/Nh3/Nh5/Ne2/Ne6/Nd5 2.Bd5# 1...d5 2.Ne5# 1.a7?? (2.Ba6#) but 1...Nd3! 1.Bc6??
