Correct answer: Bd11...Bb2 2.Q:b2# 1...B:e2 2.K:e2# 1...Bc4/Bb5/Ba6 2.O-O# 1.R:d3?? (2.O-O#) but 1...e:d3! 1.Rc4?? zz 1...Bb2 2.Q:b2# 1...B:
