Correct answer: Qd51...c:b2 2.Qa5# 1.d8Q?? (2.Qa8#) but 1...Q:g2! 1.d8R?? (2.Ra8#) but 1...Q:g2! 1.Q:c2?? (2.Qb3#/Qa4#) but 1...B:c2! 1.Qd5!