Correct answer: Qa81...Ke6 2.Rc6# 1.Rb6?? (2.Qa8#/Ra4#/Rf4#) 1...d6 2.Ra4#/Rf4# 1...Bd6 2.R:d6#/Ra4#/Rf4#/Q:d6# 1...Bb4 2.Qa8