Correct answer: O-O-O1...B:b4+ 2.a:b4# 1...Bb6/Bc7/Bd8 2.N:c6# 1...Bd5/Be4/Bf3/Bg2/Bh1/Bb5/Bb7/Ba8 2.Qb5# 1.Re4?? zz 1...B:b
