Correct answer: Bb41.Ne6? zz 1...N:b6 2.Nd8# 1...c:b6 2.d5# but 1...b4! 1.Ra7? zz 1...N:b6 2.Bb7# 1...c:b6 2.Bd7# but 1...b4! 1.Bb4! zz 1...N:b6 2.<