Correct answer: Re51...d3 2.R:f4# 1...b5 2.R:c5# 1.Ng6?? zz 1...b5 2.R:c5# but 1...d3! 1.Ng8?? zz 1...b5 2.R:c5# but 1...d3! 1.Nd5?? zz 1...d3 2.R:c3# but 1
