Correct answer: d:c71...Rh4/Rh3/Rh2/Rh1/Rh6/Rh7/Rh8 2.Q:f5# 1...Nb6/Ra7 2.B:c6# 1...c5/Ba7 2.Nc3# 1...Be1 2.Rd4#/Rc5# 1...B