I know that when it's time to rack 'em and:
15th ball lies in the kitchen but not on the head spot,
Cueball lies in the rack,
then the 15th ball stays in position, and the cueball is placed on the head spot.
Can the shooter legally shoot at the 15th ball?
Yes. See also the table and links in the thread... Can the shooter legally shoot at the 15th ball?
I know that when it's time to rack 'em and:
15th ball lies in the kitchen but not on the head spot,
Cueball lies in the rack,
then the 15th ball stays in position, and the cueball is placed on the head spot.
Can the shooter legally shoot at the 15th ball?
... Interestingly, I'm not sure it is answered in the rule book, either. If anyone cares to post the rule number which holds the answer, I'd be obliged.
From the WPA rules:
"4.8 Special Racking Situations
When the cue ball or fifteenth object ball interferes with racking fourteen balls for a new rack, the following special rules apply. A ball is considered to interfere with the rack if it is within or overlaps the outline of the rack. The referee will state when asked whether a ball interferes with the rack.
(a) If the fifteenth ball was pocketed on the shot that scored the fourteenth ball, all fifteen balls are re-racked.
(b) If both balls interfere, all fifteen balls are re-racked and the cue ball is in hand behind the head string.
(c) If only the object ball interferes, it is placed on the head spot or the center spot if the cue ball blocks the head spot.
(d) If only the cue ball interferes, then it is placed as follows: if the object ball is in front of or on the head string, the cue ball is in hand behind the head string; if the object ball is behind the head string, the cue ball is spotted on the head spot, or on the center spot if the head spot is blocked.
In any case, there is no restriction on which object ball the shooter may play as the first shot of the new rack."
You're missing the strategy. If the only loose ball is behind the line and your opponent scratches, one strategy is for you to shoot the cue ball directly into a side pocket.Can I assume the "shoot forward" rule would apply if, after a re-rack, a player scratches while attempting to pocket the non-stack object ball, but that ball comes to rest behind the head string? That would be the other player's BIH in the kitchen, would it not?
Because it seems like this would be such a disadvantage for the player receiving the ball, I wondered if there was a special rule for this that I'm not finding anywhere (that allows placement on the head or center spot).
You're missing the strategy. If the only loose ball is behind the line and your opponent scratches, one strategy is for you to shoot the cue ball directly into a side pocket.