Correct answer: Rd51...b4 2.Ba4# 1...Nf6/Ng7/Nd6 2.R:c7# 1...Q:f3 2.B:f3# 1...Qd5 2.Q:d5# 1.Kh7?? zz 1...b4 2.Ba4# 1...Ng7/Nd6 2.R:
