Correct answer: Bb21...Kc2 2.Qf5# 1.Be3?? (2.O-O-O#) 1...Kc2 2.Qf5# 1...c2 2.Qd4# but 1...Bb3! 1.Qd5+?? 1...Kc2 2.Qd1#/Qf5#/Qe4# but 1...
