Correct answer: Qb71.Nd4+?? 1...Ke5 2.Qc5# but 1...Kg5! 1.Qb5+?? 1...Ke6 2.Qd7# but 1...a:b5! 1.Qd6?? (2.Qd5#/Qd7#/Qe5#/N:g7#) 1...R