Four-ball billiards

Four-ball billiards or four-ball carom (often abbreviated to simply four-ball, and sometimes spelled 4-ball or fourball) is a carom billiards game, played on a pocketless table with four billiard balls, usually two red and two white, one of the latter with a spot to distinguish it (in some sets, one of the white balls is yellow instead of spotted).

Two points are scored when the shooter caroms on each of the three object balls in a single shot.

[1] A carom on only one ball results in no points, and ends the shooter's inning.

A carom on only one ball results in no points, and ends the shooter's inning.

There are a few differences between the Korean and the Japanese variants: A variation of four-ball called desítkový karambol (Czech for 'tenfold carom') is popular in Central Europe, especially in the Czech Republic.