Correct answer: g:f71...Bd7/R7:b6+/Rb8 2.K:f7# 1...Rb3/Rb2/Rb1 2.B:b3# 1...Rb5 2.B:b5# 1...R4:b6+ 2.Be6# 1...R:c4 2.Rc:c4#/Ra:c4# 1.
