Correct answer: Qb71.Rf8?? (2.Rf1#) but 1...Kc1! 1.Rg8?? (2.Rg1#) but 1...Kc1! 1.Qa7?? (2.Qg1#) but 1...Kc1! 1.Qf7?? (2.Qf1#) but 1...Kc1!
