This is a simple chess puzzle I remember when I was in high school. I’m sharing this chess puzzle to you for your entertainment.
Figure out the solution. And if you do, write your answer in the comments below. This is a simple chess puzzle. I bet you can figure this out immediately.
Black to move. Mate in 1 move.
Post your answers in the comments below.

Black to move. Mate in 1 move.
Answers are provided below by the people. Don’t try to look below unless you give up solving this.
in roque
0-0-0
castling move (king and rook) bai neil..ehehehe