Correct answer: Kb71...Re1/Rd1/Rc1/Rb1/Ra1/Rg1/Rh1/f3 2.N:f4# 1...Nc7 2.N:c7# 1...f:e6 2.B:e6# 1...f:g6/f6 2.N:f4#/Ng7# 1...f5 2.N:f4#/Nc
