Correct answer: B:b71...Nde5 2.Ba3# 1...b6/b5 2.Rc6# 1.B:b7! (2.Rc6#) 1...Rc1 2.Q:d3# 1...g:f4 2.Q:g6# 1...Ng:f4 2.Rh6# 1...Nge5 2.Rd