Correct answer: Rb61...b6 2.Rc6# 1...Nc3/Nc7/Na3/Na7 2.Qb6# 1...Nd4 2.Qb6#/Qa3# 1...Nd6 2.Re5# 1.K:b7?? (2.Rc6#) 1...Nc3/Na7 2.
