Correct answer: Rd41...f4 2.Rg5# 1...b5 2.Ba7# 1...Rh2/Rh1/Rh5/Rh6/Rh7/Rh8 2.R:c3# 1.Be5?? (2.Bd4#) but 1...Rh4! 1.Bf4?? (2.Be3#) 1