What you're talking about is this:
6.25: Numbered Balls Struck by the Cue Stick
Striking a numbered ball with the chalked area of tip of the cue stick prior to or at the same time as striking the cue ball constitutes a foul. It is possible to strike the cue ball and have the ferrule or shaft contact a numbered ball at the same time and not result in a foul (for instance, when a player must elevate the cue by hand or bridge over a numbered ball in order to strike the cue ball). If a single numbered ball is moved in this manner and has no outcome on the shot, it may be placed in the original position by the opponent or leave lie.
What had happened is this:
7.4: Flagrant Fouls
If a player moves or pockets any balls illegally by any means such as slapping the table, throwing balls or equipment, pushing on the cloth, striking the balls with the cue or other object illegally, impeding the path of balls, or any action deemed unsuitable by the tournament director, the player loses the game and/or match. A severe and/or second violation may cause the tournament director to impose a suspension and/or expulsion from the tournament. The decision of the tournament director is final.
Rule 7.4 is a great example of what I've been complaining about for some time regarding ambiguity in the rules...... or perhaps the rules are clear and we who interpret have different views. All we have is language and the words we use define the meaning.
It states "striking the balls illegally" within the context of slapping, throwing and pushing to include using the cue stick or equipment in these offences. The terms they use bear no resemblance to stroking a shot. In fact, the term "stroke" is conveniently omitted.
The nature of the language would suggest a situation where players rake the balls across the table with their arm or cue, throw a bridge on the table or move balls in frustration. While it's possible a player could angrily drive the cue through a pack of ball with the tip of his stick it would have to be in a shockingly noticeable manner to fit the spirit of the rule.
I would be cautious in assuming that striking and stroking carry the same meaning here based on the specific nature of the language.
While it may have been the intent to include stroking the shot, I have to wonder why they would avoid the one specific term that would leave no doubt in defining the action and yet this is the rule everyone wants to use to define the situation.
A more appropriate rule would be one where it addresses the consequences of cuing a ball other than the cue ball. In that situation it would likely require the balls be replaced or spotted and BIH to the opponent but I can't see where there would be a Loss of game. as is suggested in rule 7.4 unless the rules stipulate that pocketing the 9 ball is a forfeiture which apparently was not in the rules at the French tournament..
The French referee didn't see this as a loss of game either.
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