in games where it is played that if any ball touching the line is back and can not be shot because it is considered back...
Your opening statement is vague. If you mean that you are playing under a local set of rules for 1P, then the only answer is whatever the local rules say it is.
However, if your opening statement is an assumption that the edge of a ball is relevant under the generally accepted rules of 1P authorities, then the opening statement is false. The edges of the ball have no relevance - only the base of the ball matters.
From the preamble of "Official
One Pocket Rules", form onepocket.org:
Unless clearly contradicted..., general pocket billiards rules of play and etiquette apply to One Pocket, and complete General Rules are available from the World Pool-Billiard Association (WPA).
The remaining rules from onepocket.org do not address the specific definitions of the kitchen nor do they reference BIH placement. Therefore, you must defer to the WPA rules (WSR), under which the base of the ball determines its position, and the head string is NOT a part of the kitchen. WSR 1.5, 6.10 and 6.11 apply. So...
...can i take the cue ball and place it on the line and shoot or must the cue ball be placed in a position where no part of the ball is touching the line.
Neither. The line is not a part of the kitchen, and the placement of BIH in 1P must be in the kitchen. So the base of the CB must be behind the line. The edge of the CB has no relevance - so part of the ball may be "touching" the line as long as its base is behind the line.
in old days when there was a line and any ball touched that line it was considered back,cue ball or object ball
Again, not relevant unless you are talking about "local" rules.
are there 2 rules now,one for object ball one for cue ball
Per WSR, when you have BIH an object ball may be legally contacted as long as it is not in the kitchen. That includes a ball that is directly on the head string. The fact that the CB may be still in the kitchen when it makes contact with the ball is not relevant. Only the positions of the balls at the start of the shot are relevant.
if possible please quote the recognized authority
dean
In the body above.
Thoroughly confused? The same information can be found with an excellent diagram in the BCAPL rules, p. 89, Applied Ruling 1-36 (link below). Although they are BCAPL rules, for the purpose of 1P they are substantially identical to WSR. The only difference is the shot described in Situation 5, which is illegal in BCAPL play but legal under WSR.
:smile:
Buddy Eick
BCAPL National Head Referee
BCAPL Director of Referee Training
Technical Editor, BCAPL Rule Book
bcapl_referee@cox.net
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