Very nice idea, I will keep this in mind when playing, thanks.
Queen Side Castling Danger!
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ha ha, I actually just used this in a game I played as white. It wasn't checkmate, but I ended up getting up 8 points (a rook and 3 pawns). Yeah, trapping the bishop can be dangerous.
I read about this line in a chess book and thought that it could never use it, but later in a game on the Free Internet Chess Server, I actually used it! I thought it would be interesting to put it here.