Cutthroat is a three-player pocket billiards game. Each player is assigned a set of numbered balls. The object is to be the last player with at least one ball still on the table. A player's turn continues so long as he knocks in a ball with each shot (even if it is player's own ball).

Defense is the key in the multi-player billiard game of cutthroat. Played on a six pocket table, players are assigned one of three groups of object balls. Players defend their balls, while trying to pocket their opponent's. The last player with balls still on the table is the winner.

Pocket opponent's balls while defending your own, as to be the last player with balls still on the table.

Cutthroat is meant to be played by 3 players. Object balls are divided into lows (1-5), mids (6-10) and highs (11-15), and are usually assigned to players based on the result of the break. Players then attempt to pocket an opponent's ball, while at the same time defending their own. If a ball isn't pocketed, a player's turn ends. If the cue ball is pocketed, each opponent places a previously pocketed ball back on the table. The last player with balls on the table is the winner.

Billiards was first played in 15th century England, and has been a popular game throughout Europe and the United States ever since. Many styles and variations have been created using the same basic rules and equipment. Little is known about cutthroat's specific origins. The term has been used many times throughout billiards' history to refer to multi-player games. Today, cutthroat is one of the most popular casual billiards games in the United States and Canada.

Cue
Cue Balls
Object Balls
Rack
Six Pocket Billiard Table

Players must use caution when handling a cue, as eye injuries can sometimes occur.

Training consists of minor aerobic exercises to maintain modest flexibility in the back, shoulders and arms. A basic knowledge of angles and trajectory is also a plus.

Cue - a long, straight, tapering wooden rod for striking the ball

Cue Balls - white ball that is struck with the cue

Object Balls - any ball other than the cue ball

Rack - a triangular, diamond or straight shaped structure for positioning object balls

Six Pocket Billiard Table - a smooth rectangular cloth- covered table used for billiards and some forms of pool, with six pockets at the corners and sides into which the balls can be struck

http://en.wikipedia.org/wiki/Cutthroat_(pool)
http://www.billiardsforum.info/pool-rules/cutthroat-billiards-rules.asp