Correct answer: Rb61...a3 2.b3# 1...R:e4 2.Q:e4# 1...Re6/Re7/Re8 2.e5# 1...Rd5 2.e:d5# 1...Rf5 2.e:f5# 1...Bc3/Bd2/Be1/Ba3/Ba5 2.Na3# 1...Nd
