Billiard balls vary from game to game, in size, design and quantity.
"Russian pyramid and "kaisa have a size of 68 mm ( 2 11⁄16 in). In Russian pyramid there are sixteen balls, as in pool, but fifteen are white and numbered, and the "cue ball is usually red. In Kaisa, five balls are used: the yellow "object ball (called the kaisa in Finnish), two red object balls, and the two white cue balls (usually differentiated by one cue ball having a dot or other marking on it and each of which serves as an object ball for the opponent).
Carom billiards balls are larger than pool balls, having a diameter of 61.5 mm ( 2 7⁄16 in), and come as a set of two cue balls (one colored or marked) and an object ball (or two object balls in the case of the game "four-ball).
American-style pool balls are 57 mm ( 2 1⁄4 in), are used in many pool games found throughout the world, come in sets of two "suits of object balls, seven "solids and seven "stripes, an "8 ball and a "cue ball; the balls are racked differently for different games (some of which do not use the entire ball set). Blackball (English-style eight-ball) sets are similar, but have unmarked "groups of "red (or "blue) and "yellow balls instead of solids and stripes, and at 56 mm ( 2 3⁄16 in) are smaller than the American-style; they are used principally in Britain, Ireland, and some "Commonwealth countries, though not exclusively, since they are unsuited for playing nine-ball.
Snooker balls are smaller than American-style pool balls with a diameter of 52.5 mm ( 2 1⁄15 in), and come in sets of 22 (15 reds, 6 ""colours", and a cue ball). English billiard balls are the same size as snooker balls and come in sets of three balls (two cue balls and a red, an object ball). Other games, such as "bumper pool, have custom ball sets.
Billiard balls have been made from many different materials since the start of the game, including clay, "bakelite, "celluloid, "crystallite, "ivory, plastic, steel and wood. The dominant material from 1627 until the early 20th century was ivory. The search for a substitute for ivory use was not for environmental concerns but based on economic motivation and fear of danger for elephant hunters. It was in part spurred on by a New York billiard table manufacturer who announced a prize of $10,000 for a substitute material. The first viable substitute was "celluloid, invented by "John Wesley Hyatt in 1868, but the material was volatile, sometimes exploding during manufacture and was highly flammable.
There are many sizes and styles of pool and "billiard tables. Generally, tables are "rectangles twice as long as they are wide. Most pool tables are known as 7-, 8-, or 9-footers, referring to the length of the table's long side. Full-size snooker and English billiard tables are 12 feet (3.7 m) long on the longest side. "Pool halls tend to have 9-foot (2.7 m) tables and cater to the serious pool player. "Pubs will typically use 7-foot (2.1 m) tables which are often coin-operated. Formerly, 10-foot (3 m) tables were common, but such tables are now considered antique collectors items; a few, usually from the late 19th century, can be found in pool halls from time to time. Ten-foot tables remain the standard size for carom billiard games. The slates on modern carom tables are usually heated to stave off moisture and provide a consistent playing surface.
The length of the pool table will typically be a function of space, with many homeowners purchasing an 8-foot (2.4 m) table as a compromise. Full-size pool tables are 4.5 by 9 ft (2.7 m) (interior dimensions). High-quality tables have a "bed made of thick slate, in three pieces to prevent warping and changes due to temperature and humidity. Smaller bar tables are most commonly made with a single piece of slate. Pocket billiards tables of all types normally have six pockets, three on each side (four corner pockets, and two side or middle pockets).
All types of tables are covered with billiard cloth (often called "felt", but actually a woven wool or wool/nylon blend called "baize). Cloth has been used to cover billiards tables since the 15th century.
Bar or tavern tables, which get a lot of play, use "slower", more durable cloth. The cloth used in upscale "pool (and snooker) halls and home "billiard rooms is "faster" (i.e., provides less friction, allowing the balls to roll farther across the table "bed), and competition-quality pool cloth is made from 100% "worsted wool. Snooker cloth traditionally has a nap (consistent fiber directionality) and balls behave differently when rolling against versus along with the nap.
The cloth of the billiard table has traditionally been green, reflecting its origin (originally the grass of ancestral lawn games), and has been so colored since the 16th century, but it is also produced in other colors such as red and blue.
The cloth was earlier said to be the most important part of the game, most likely because of the reflection of the game's origin. The players were stubborn in the fact that the cloth should not be ripped. They even made women continue to use maces after cues were invented, for fear that they would rip the cloth with the sharper cues.
A "rack is the name given to a frame (usually wood, plastic or aluminium) used to organize billiard balls at the beginning of a game. This is traditionally triangular in shape, but varies with the type of billiards played. There are two main types of racks; the more common triangular shape which is used for eight-ball and straight pool and the diamond-shaped rack used for nine-ball.
There are several other types of less common rack types that are also used, based on a "template" to hold the billiard balls tightly together. Most commonly it is a thin plastic sheet with diamond-shaped cut-outs that hold the balls that is placed on the table with the balls set on top of the rack. The rack is used to set up the "break" and removed before the "break shot" occurs.
Billiards games are mostly played with a stick known as a cue. A cue is usually either a one piece tapered stick or a two piece stick divided in the middle by a joint of metal or phenolic resin. High quality cues are generally two pieces and are made of a hardwood, generally maple for billiards and ash for snooker.
The "butt end of the cue is of larger circumference and is intended to be gripped by a player's hand. The "shaft of the cue is of smaller circumference, usually tapering to an 0.4 to 0.55 inches (10 to 14 mm) terminus called a "ferrule (usually made of fiberglass or brass in better cues), where a rounded leather "tip is affixed, flush with the ferrule, to make final contact with balls. The tip, in conjunction with chalk, can be used to impart "spin to the cue ball when it is not hit in its center.
Cheap cues are generally made of pine, low-grade maple (and formerly often of "ramin, which is now endangered), or other low-quality wood, with inferior plastic ferrules. A quality cue can be expensive and may be made of exotic woods and other expensive materials which are artfully inlaid in decorative patterns. Many modern cues are also made, like "golf clubs, with high-tech materials such as woven graphite. Skilled players may use more than one cue during a game, including a separate generally lighter cue for the opening break shot (because of cue speed gained from a lighter stick) and another, shorter cue with a special tip for "jump shots.
The mechanical bridge, sometimes called a "rake", "bridge stick" or simply "bridge", and in the UK a "rest", is used to extend a player's reach on a shot where the cue ball is too far away for normal hand bridging. It consists of a stick with a grooved metal or plastic head which the cue slides on. Many amateurs refuse to use the mechanical bridge based on the perception that to do so is unmanly.["citation needed] However, many aficionados and most professionals employ the bridge whenever the intended shot so requires.
Some players, especially current or former snooker players, use a screw-on cue butt extension instead of or in addition to the mechanical bridge.
Bridge head design is varied, and not all designs (especially those with cue shaft-enclosing rings, or wheels on the bottom of the head), are broadly tournament-approved.
In Italy a longer, thicker cue is typically available for this kind of tricky shot.
For snooker they are normally available in three forms, their use depending on how the player is hampered; the standard rest is a simple cross, the 'spider' has a raised arch around 12 cm with three grooves to rest the cue in and for the most awkward of shots, the 'giraffe' (or 'swan' in England) which has a raised arch much like the 'spider' but with a slender arm reaching out around 15 cm with the groove.
Chalk is applied to the tip of the cue stick, ideally before every shot, to increase the tip's friction coefficient so that when it impacts the cue ball on a non-center hit, no "miscue (unintentional slippage between the cue tip and the struck ball) occurs. Cue tip chalk is not actually the substance typically referred to as ""chalk" (generally "calcium carbonate), but any of several proprietary compounds, with a "silicate base. It was around the time of the Industrial Revolution that newer compounds formed that provided better grip for the ball. This is when the English began to experiment with side spin or applying curl to the ball. This was shortly introduced to the American players and is how the term "putting English on the ball" came to be. "Chalk" may also refer to a cone of fine, white "hand chalk; like "talc (talcum powder) it can be used to reduce friction between the cue and bridge hand during shooting, for a smoother stroke. Some brands of hand chalk actually are made of compressed talc. (Tip chalk is not used for this purpose because it is abrasive, hand-staining and difficult to apply.) Many players prefer a slick pool glove over hand chalk or talc because of the messiness of these powders; buildup of particles on the cloth will affect ball behavior and necessitate more-frequent cloth cleaning.
Cue tip chalk (invented in its modern form by straight rail billiard pro "William A. Spinks and chemist William Hoskins in 1897) is made by crushing "silica and the abrasive substance "corundum or aloxite (aluminium "oxide), into a powder. It is combined with dye (originally and most commonly green or blue-green, like traditional "billiard cloth, but available today, like the cloth, in many colors) and a binder (glue). Each manufacturer's brand has different qualities, which can significantly affect play. High humidity can also impair the effectiveness of chalk. Harder, drier compounds are generally considered superior by most players.
There are two main varieties of billiard games: carom and pocket. The main carom billiards games are "straight rail, "balkline and especially "three cushion billiards. All are played on a pocketless table with three balls; two cue balls and one object ball. In all, players shoot a cue ball so that it makes contact with the opponent's cue ball as well as the object ball. Others of multinational interest are "four-ball and "five-pins.
The most globally popular of the large variety of pocket games are "Pool and "snooker. "English billiards, with some features of carom billiards, was one of the two most-competitive cue sports, along with balkline, at the turn of the previous century and is still enjoyed today especially in "Commonwealth countries. "Russian pyramid and its variants like "kaisa are popular in the former "Eastern bloc.
Games played on a carom billiards table
Straight rail or straight billiards
In straight rail, a player scores a point and may continue shooting each time his cue ball makes contact with both other balls.
Although a difficult and subtle game, some of the best players of straight billiards developed the skill to "gather the balls in a corner or along the same rail for the purpose of playing a series of "nurse shots to score a seemingly limitless number of points.
The first straight rail professional tournament was held in 1879 where "Jacob Schaefer, Sr. scored 690 points in a single turn["page needed] (that is, 690 separate strokes without a miss). With the balls repetitively hit and barely moving in endless "nursing", there was little for the fans to watch.
In light of these phenomenal skill developments in straight rail, the game of balkline soon developed to make it impossible for a player to keep the balls gathered in one part of the table for long, greatly limiting the effectiveness of nurse shots. A "balkline (not to be confused with "baulk line, which pertains to the game of "English billiards) is a line parallel to one end of a billiards table. In the games of balkline – 18.1 and 18.2 (pronounced "eighteen-point-two") balkline, among other more obscure variations – the players have to drive at least one object ball past a balkline set at 18 inches (460 mm) from each rail, after one or two points have been scored, respectively.
A more elegant solution was three-cushion billiards, which requires a player to make contact with the other two balls on the table and contact three rail cushions in the process. This is difficult enough that even the best players can only manage to average one to two points per turn. This is sometimes described as "hardest to learn" and "require most skill" of all billiards. Even quite good Pool or Snooker players may attempt an hour or more to score a single three cushion point, without even managing an accidental score.
Games played on a pool table
There are many variations of games played on a standard pool table. Popular pool games include "eight-ball, "nine-ball, "straight pool and "one-pocket. Even within games types (e.g. "eight-ball), there may be variations, and people may play recreationally using relaxed or local rules. A few of the more popular examples of pool games are given below.
In eight-ball and nine-ball, the object is to sink object balls until one can legally pocket the winning eponymous ""money ball". Well-known but waning in popularity is straight pool, in which players seek to continue sinking balls, rack after rack if they can, to reach a pre-determined winning score (typically 150). Related to nine-ball, another well-known game is "rotation, where the lowest-numbered object ball on the table must be struck first, although any object ball may be pocketed (i.e., combination shot). Each pocketed ball is worth its number, and the player with the highest score at the end of the rack is the winner. Since there are only 120 points available (1 + 2 + 3 ⋯ + 15 = 120), scoring 61 points leaves no opportunity for the opponent to catch up. In both one-pocket and bank pool, the players must sink a set number of balls; respectively, all in a particular "pocket, or all by "bank shots. In snooker, players score points by alternately potting "red balls and various special ""colour balls".
Two-player or -team games
- "Eight-ball: The goal is to "pocket ("pot) all of one's designated "group of balls (either "stripes vs. "solids, or "reds vs. "yellows, depending upon the equipment), and then pocket the "8 ball in a "called pocket.
- "Nine-ball: The goal is to pocket the 9 ball; the initial contact of the "cue ball each turn must be with the lowest-numbered "object ball remaining on the table; there are numerous variants such as "seven-ball, "six-ball, and the older forms of three-ball and ten-ball, that simply use a different number of balls and have a different "money ball.
- "Straight pool (a.k.a. 14.1 continuous pool): The goal is to reach a predetermined number of "points (e.g. 100); a point is earned by pocketing any called ball into a designated pocket; game play is by "racks of 15 balls, and the last object ball of a rack is not pocketed, but left on the table with the opponent re-racking the remaining 14 before game play continues.
- "Bank pool: The goal is to reach a predetermined number of points; a point is earned by pocketing any called ball by "banking it into a designated pocket using one or more "cushion.
"Speed pool is a standard billiards game where the balls must be pocketed in as little time as possible. Rules vary greatly from tournament to tournament. The "International Speed Pool Challenge has been held annually since 2006.
Games played on a snooker table
Dating to approximately 1800, English billiards, called simply billiards in many "former British colonies and in the UK where it originated, was originally called the winning and losing carambole game, folding in the names of three predecessor games, the winning game, the losing game and the carambole game (an early form of "straight rail), that combined to form it. The game features both "cannons (caroms) and the pocketing of balls as objects of play. English billiards requires two "cue balls and a red "object ball. The object of the game is to score either a fixed number of points, or score the most points within a set time frame, determined at the start of the game.
Points are awarded for:
- Two-ball cannons: striking both the object ball and the other (opponent's) cue ball on the same shot (2 points).
- Winning hazards: "potting the red ball (3 points); potting the other cue ball (2 points).
- "Losing hazards (or "in-offs"): potting one's cue ball by cannoning off another ball (3 points if the red ball was hit first; 2 points if the other cue ball was hit first, or if the red and other cue ball were ""split", i.e., hit simultaneously).
Snooker is a pocket billiards game originated by "British officers stationed in "India during the 19th century, based on earlier pool games such as black pool and life pool. The name of the game became generalized to also describe one of its prime strategies: to ""snooker" the opposing player by causing that player to foul or leave an opening to be exploited.
In the United Kingdom, snooker is by far the most popular cue sport at the competitive level, and major national pastime along with association football and "cricket. It is played in many "Commonwealth countries as well, especially in Asia. Snooker is uncommon in North America, where pool games such as eight-ball and nine-ball dominate, and Latin America and "Continental Europe, where carom games dominate. The first "World Snooker Championship was held in 1927, and it has been held annually since then with few exceptions. The "World Professional Billiards and Snooker Association (WPBSA) was established in 1968 to regulate the professional game, while the "International Billiards and Snooker Federation (IBSF) regulates the amateur games.
List of cue sports and games
- "Artistic billiards (a major world cue sport)
- "Balkline games (18.1, 18.2, etc.)
- "Four-ball (yotsudama, sagu)
- "Three-cushion billiards (a major world cue sport)
- See also "Hybrid games", below.
Target carom games
- "American rotation
- "Artistic pool (a major world cue sport)
- "Bank pool
- "Baseball pocket billiards
- "Eight-ball (a major world cue sport; informally a.k.a. stripes & solids, or highs & lows)
- Equal offense
- "Kelly pool
- "Nine-ball (a major world cue sport)
- "One-pocket (a major world cue sport)
- "Rotation (a.k.a. 61)
- "Speed pool
- "Straight pool (a major world cue sport; a.k.a. 14.1 continuous)
- "Ten-ball (a major world cue sport)
Non-pool pocket games
Technically a form of pocket billiards, snooker has its own worldwide sporting community separate from that of pool.
Hybrid carom and pocket games
These combine aspects of carom and pocket billiards, and are played on tables with pockets (often as "hazards not targets).
Obstacle and target games
These are variations using small disks instead of balls, and light-weight cue sticks.
Outdoor games played on a lawn, field or court, played with varying equipment that may include hoops, pins, holes or other targets or obstacles, and clubs, curved-head sticks, or mallets. Most such games are obsolete, aside from croquet. Golf and "field hockey, as well as stick-less games such as "bocce, "boules and "bowls, are historically related.
These are developments from cue sports that dispense with the cues, and are played with the hands directly.
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