Correct answer: Rf61.Qb8+?? 1...Kd5 2.Qd6# but 1...Kd4! 1.Qc7+?? 1...Kd5 2.Qd6# but 1...Kd4! 1.Qe7+?? 1...Kd5 2.Rd6#/Qe4#/Qd6#/