Correct answer: Qa71.Bb7+?? 1...K:h3 2.Qh5# but 1...Kh2! 1.Qf2+?? 1...Kh1 2.Bb7#/Qg1# but 1...K:f2! 1.Qf1+?? 1...Kh2 2.Qg1# but 1...