All shots are called, that is the player must indicate which ball they wish to pot and which pocket they are aiming for.
A miss on a free shot incurs no penalty, but does end the player's turn.
If a penalty shot is missed, it constitutes a foul and the opponent is awarded 7 points.
If an in-off foul (where the cue ball is accidentally potted) occurs, the incoming opponent will get the points and receive ball-in-hand, permitting placement of the cue ball anywhere within the "D" before their next shot.
All other rules are the same as in snooker, although plants, cannons and other combination shots are automatically illegal because all the balls are different colours.