Correct answer: a31...Ke4 2.R:e5# 1...Ke6 2.Nf4# 1...Kc6 2.Ne7# 1.B:d3?? zz 1...Ke6 2.Nf4# 1...Kc6 2.Ne7#/Be4# but 1...a3! 1.R:e5+??
