Correct answer: a51.Qd5?? (2.Qb5#) but 1...Ra8! 1.Qd7?? (2.Qb5#) but 1...Ra8! 1.Qd8?? zz 1...Ra8 2.Q:a8# 1...b5+ 2.a:b5# but 1...Ka5! 1.Qe5??