What a touchy subject. In my experience tournaments roughly come in one of three flavors:
1) Follow BCAPL or WPA rules strictly
2) Have "local rules" with some stated in an abridged rules sheet and the rest covered by tournament tradition or TD/ref discretion.
3) Advertised as #1 but operates as #2
If you're playing in a #1 tournament, you need to declare the balls are frozen or they are assumed not frozen. Then you may shoot directly at and through the object ball.
If you're playing in #2 or #3, then you probably have to shoot away at a minimum of a 45 degree angle.
This is a scenario where a knowledgeable/experienced player will take the time to settle the rules question with the opponent (and perhaps TD) before the shot is taken because this specific scenario is so often controversial. And remember, if the TD is wrong but doesn't acknowledge he's wrong...then he's right.
1) Follow BCAPL or WPA rules strictly
2) Have "local rules" with some stated in an abridged rules sheet and the rest covered by tournament tradition or TD/ref discretion.
3) Advertised as #1 but operates as #2
If you're playing in a #1 tournament, you need to declare the balls are frozen or they are assumed not frozen. Then you may shoot directly at and through the object ball.
If you're playing in #2 or #3, then you probably have to shoot away at a minimum of a 45 degree angle.
This is a scenario where a knowledgeable/experienced player will take the time to settle the rules question with the opponent (and perhaps TD) before the shot is taken because this specific scenario is so often controversial. And remember, if the TD is wrong but doesn't acknowledge he's wrong...then he's right.