In 2006 the Billiard Congress of America commented it was more popular than snooker in the United States.
The player may then place the cue ball in the "D" area as in snooker, or on a "D"-less American-style table, in the kitchen (i.e., behind the head string).
This rule is highly unusual, perhaps even unique, in the world of cue sports, and often unused even in golf.
Knocking over a pin results in a pre-defined number of "penalty strokes" added to the offender's score, and they must then also restart the current hole.
But as they get hit by player's object or cue balls as the game progresses, the red balls end up "floating" about the table, creating roaming obstacles and making the game much more difficult, particularly when a larger number of players (i.e. 4-8) are involved.
In New Hampshire, a local variant that has been subject to organized tournament play since 1947 in the Queen City Pool League, is called "around-the-world" or "roundy" for short.