Correct answer: O-O-O1...Kb3 2.Qd1# 1...e2 2.b3# 1.Bd7?? (2.Qd1#) 1...e2 2.b3# but 1...Kb3! 1.Qd5?? zz 1...Kb3 2.Qd1# 1...e2 2.b3# but 1...h5! 1.Rg2??
