Great Find! 9 Ball is played by more different rules than practically any other pool game I know of.
JoeyA
JoeyA
International Challenge of Champions rule:
Unlike other 9-ball tournaments, a player must call the 9-ball before pocketing it. Failing to call the shot or the 9-ball going in another pocket other than the one called will result the 9-ball being respotted and the player loses his turn at the table. Also, a player can't win a rack by pocketing the 9-ball in the break.
From Wiki page- https://en.wikipedia.org/wiki/International_Challenge_of_Champions