Correct answer: Nef31...Q:h2/Qf3/Rg2 2.Bf3# 1...c3 2.Bd3# 1.Kc5?? (2.Rd4#) 1...f4 2.Re5# 1...c3 2.Bd3# but 1...Ra5+! 1.Nd3?? (2.Nc5#) 1..