At the start of a frame, the object balls are positioned on the table as shown in illustration A. Starting with the cue ball in the "D", the first player executes a break-off shot by striking the cue ball with the tip of their cue, aiming to hit any of the red balls in the triangular pack. Snooker accessories include: chalk for the tip of the cue, used to help apply spin on the cue ball; various sorts of rest, such as the swan or spider for playing shots that are difficult to play by hand; extensions for lengthening the cue stick; a triangle for racking the reds; and a scoreboard which is typically attached to a wall near the snooker table. A traditional snooker scoreboard resembles an abacus and records the points scored by each player for the current frame in units and twenties, as well as the frame scores.

Cinema fires caused by the ignition of nitrocellulose film stock commonly occurred as well. Even on the occasions when nitrate stock did not start a devastating blaze, once flames from other sources spread to large nearby film collections, the resulting combustion greatly intensified the fires and substantially increased the scope of their damage. The process of alternately potting reds and colours continues until the striker fails to pot the desired object ball or commits a foul-at which point the opponent comes to the table to start the next turn-or when there are no red balls remaining. A maximum break in snooker is achieved by potting all reds with blacks, then potting all six colours, yielding 147 points; this is often known as a "147" or a "maximum". As professional snooker grew as a mainstream sport, it became heavily dependent on tobacco advertising. During the COVID-19 pandemic, the professional tour was confined to events played within the United Kingdom and Ireland.

Players including 2005 world champion Shaun Murphy have claimed that a 128-player professional tour is financially unsustainable. Tabb was the only woman refereeing on the professional tour when she joined it in 2002, but tournaments now routinely feature female referees such as Desislava Bozhilova, Maike Kesseler, and Tatiana Woollaston. The prize money for professional events increased, with the top players earning several million pounds over the course of their careers. Over the following decade, the number of professional tournaments increased, with 44 events held in the 2019-20 season. The total number of consecutive points (excluding fouls) that a player amasses during one visit to the table is known as a "break". Even if the cue ball is struck in precisely the same manner, the effect of the nap will differ according to whether the ball is directed towards the baulk line or towards the opposite end of the table. The impressive bit about this system is, if you hit the cue ball straight at one diamond, it will travel straight towards the diamond that is at the other end. However, purely negative play is rarely a winning strategy; successful players (in all versions other than golf croquet) will use all four balls to set up a break for themselves, rather than simply making the game as difficult as possible for their opponents.

By comparison with association croquet, golf croquet requires a smaller variety of shots and emphasises strategic skills and accurate shot-making. These are shots that are designed to make playing a legal shot harder, such as leaving another ball between the cue ball and the object ball. A discipline of carom billiards, players aim to recreate a portion of 76 pre-set shots of varying difficulty against an opponent. Billiards is a reference name given to a bunch of three games; pocket billiards, snooker carom billiards. A snooker ball set consists of 21 balls total. On a coin operated table, the size of the cue ball is normally bigger than the other balls due to its mechanism. If you have an American billiard table, you must have noticed little marks on the frame of the rail. At the start of each player's turn, the objective is to first pot a red ball, unless all reds are off the table, or the player has been awarded a free ball, which allows them to nominate another object ball instead of a red. The responsibilities of the referee include announcing the points scored during a break, determining when a foul has been committed and awarding penalty points and free balls accordingly, replacing colours onto their designated spots after they are potted, restoring the balls to their previous positions after the "miss" rule has been invoked (see Scoring), and cleaning the cue ball or any object ball upon request by the striker.

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