Correct answer: Re51...c3 2.Qg1# 1...R:h6 2.R:h6# 1...Q:b1 2.R:b1# 1...Qb4 2.Q:b4# 1...Qb5 2.Rf6# 1.Rd5?? (2.Qg6#) 1...Q:b1 2.R:b1# 1...