In a recent friendly game, I successfully snookered my opponent between the rail and one of my balls. To achieve this, I played the cue ball off a single rail and ended up touching my own ball before the cue ball stopped.
My opponent claimed a foul, since "only the cue ball touched a rail, and not the object ball".
Coming from a snooker background, I find the rules of 8-ball safety play somewhat confusing. I read the official 8-ball rule guide, however I did not see an explicit rule that corresponds to my situation.
So what constitutes a legal "safety shot" in 8-ball pool? Can I only snooker my opponent when both cue ball and object ball touch the rail? Is there an order in which this must happen (i.e., does the cue ball have to touche the rail first, or last)?