Correct answer: Bb11.Kg4?? zz 1...Kf6 2.Qf5# but 1...Kd4! 1.Qc4?? zz 1...Kf6 2.Qe6# but 1...Kf5! 1.Qd3?? zz 1...Kf4 2.Bd6# but 1...Kf6!
