Correct answer: Qg71...Rb8 2.Qa1# 1.Qg2?? (2.Q:b7#) 1...Rb8 2.Qa2# but 1...Be4! 1.Qh1?? (2.Q:b7#) 1...Rb8 2.Qa1# but 1...Be4! 1.Qg
