Carom billiards

The billiard table used for carom billiards is a pocketless version, and is typically 3.0 by 1.5 metres (10 ft × 5 ft).[5]

Most cloth made for carom billiard tables is a type of baize that is typically dyed green, and is made from 100% worsted wool, which provides a very fast surface allowing the balls to travel with little resistance across the table bed.

The slate bed of a carom billiard table is often heated to about 5 °C (9 °F) above room temperature, which helps to keep moisture out of the cloth to aid the balls rolling and rebounding in a consistent manner, and generally makes a table play faster. A heated table is required under international tournament rules.[6] It is an especially important requirement for the games of three-cushion billiards and artistic billiards, and even local billiard halls often have this feature in countries where carom games are popular. Heating table beds is an old practice. Queen Victoria (1819–1901) had a billiard table that was heated using zinc tubes, although the aim at that time was chiefly to keep the then-used ivory balls from warping. The first use of electric heating was for an 18.2 balkline tournament held in December 1927 between Welker Cochran and Jacob Schaefer Jr.[1] The New York Times announced it with fanfare: "For the first time in the history of world's championship balkline billiards a heated table will be used ..."[1][7]

A set of standard carom billiard balls, comprising a red object ball, one plain white cue ball, and one dotted white cue ball (replaced in modern three-cushion billiards by a yellow ball) for the opponent

The three standard balls in most carom billiards games consist of one white cue ball, a second yellow cue ball and a third, red object ball.[1] Historically, the second cue ball was white with red or black spots to differentiate it; both types of ball sets are permitted in tournament play.[8] The balls are significantly larger and heavier than their pool or snooker counterparts, with a diameter of 61 to 61.5 millimetres (2.40 to 2.42 in), and a weight ranging between 205 and 220 grams (7.2 and 7.8 oz) with a typical weight of 210 g (7.5 oz).[9]

Billiard balls have been made from many different materials throughout the history of the game, including clay, wood, ivory, plastics (including early formulations of celluloid, Bakelite, and crystalate, and more modern phenolic resin, polyester and acrylic), and even steel. The dominant material from 1627 until the early- to mid-20th century was ivory. The search for a substitute for ivory use was not for environmental or animal-welfare 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 is volatile and highly flammable, sometimes exploding during manufacture.[1][10]

Carom billiard cues have specialized refinements making them different from the typical pool cues with which many people are more familiar. Carom cues tend to be shorter and lighter overall, with a shorter ferrule, a thicker butt and joint, a wooden joint pin (in high-end examples), and collarless wood-to-wood joint (for a one-piece cue "feel"). They have a fast, conical taper, and a smaller tip diameter as compared with pool cues. Typical carom cues are 140–140 cm (54–56 in) in length and 470–520 g (16.5–18.5 oz) in weight – lighter for straight rail, heavier for three-cushion – with a tip 11–12 mm (0.43–0.47 in) in diameter.[11] The specialization makes the cue significantly stiffer, which aids in handling the larger and heavier billiard balls as compared with pool cues. It also acts to reduce deflection (sometimes called "squirt"), which is displacement of the cue ball's path away from the parallel line formed by the cue stick's direction of travel. It is a factor that occurs every time english (side) is employed, and its effects are magnified by speed. In some carom games, deflection plays a large role because many shots require extremes of side-spin, coupled with great speed; this is a combination typically minimized as much as possible, by contrast, in pool.[12]^{:79, 240–1} The wood used in carom cues can vary widely, and the highest cues are handmade.

Straight rail, sometimes referred to as carom billiards, straight billiards, the three-ball game, the carambole game, and the free game, is thought to date to the 18th century, although no exact time of origin is known. It was known as French caroms, French billiards, or the French game in early times, taking those bygone names from the French who popularized it. The object of straight rail is simple: one point, called a "count", is scored each time a player's cue ball makes contact with both object balls (the second cue ball and the third ball) on a single stroke. A win is achieved by reaching an agreed upon number of counts.[1]

At straight rail's inception there was no restriction on the manner of scoring. However, the technique of crotching, or freezing two balls into the corner where the rails meet—the crotch—vastly increasing counts, resulted in an 1862 rule which allowed only three counts before at least one ball had to be driven away. Techniques continued to develop which increased counts greatly despite the crotching prohibition, especially the development of a variety of "nurse" techniques. The most important of these, the rail nurse, involves the progressive nudging of the object balls down a rail, ideally moving them just a few centimeters on each count, keeping them close together and positioned at the end of each stroke in the same or near the same configuration such that the nurse can be replicated again and again.[1]

Straight rail is still popular in Europe, where it is considered a fine practice game for both balkline and three-cushion billiards. Additionally, Europe hosts professional competitions known as pentathlons after the ancient Greek Olympic athletic competitions, in which straight rail is featured as one of five billiards disciplines at which players compete, the other four being 47.1 balkline, cushion caroms, 71.2 balkline, and three-cushion billiards.[1]

Straight rail was played professionally in the United States from 1873 to 1879, but is uncommon there today.[1]

The new game appearing in 1879, called the champion's game or limited-rail, is considered an intermediary game between straight rail and balkline and was designed with the specific intent of frustrating the rail nurse.[1] The game employed diagonal lines—balklines—at the table's corners to regions where counts were restricted, thus "cutting off four triangular spaces in the four corners, [taking] away 711 mm (28 in) of the 'nursing' surface of the end rails and 1,422 mm (56 in) on the long rails."[13] Ultimately, however, despite its divergence from straight rail, the champion's game simply expanded the dimensions of the balk space defined under the existing crotch prohibition which was not sufficient to stop nursing.[1]

Balkline table with standard markings

Balkline succeeded the champion's game, adding more rules to curb nursing techniques. There are many variation of balkline but all divide the table into marked regions called balk spaces. Such balk spaces define areas of the table surface in which a player may only score up to a threshold number of points while the object balls are within that region.[1][14][15]

In the balkline games, rather than drawing balklines a few inches from the corners, the entire table is divided into rectangular balk spaces, by drawing pairs of balklines a certain distance lengthwise and widthwise across the table a set number of inches parallel out from each rail. This divides the table into nine rectangular balkspaces. Additionally, rectangles are drawn where each balkline meets a rail, called anchor spaces, which developed to stop a number of nursing techniques that exploited the fact that if the object balls straddled a balkline, no count limit was in place.[1]

For the most part, the differences between one balkline game to another is defined by two measures: 1) the spacing of the balklines, and 2) the number of points that are allowed in each balk space before at least one ball must leave the region. Generally, balkline games and their particular restrictions are given numerical names indicating both of these characteristics; the first number indicated either inches or centimeters depending on the game, and the second, after a dot or a slash, indicates the count restriction in balk spaces, which is always either one or two. For example, in 18.2 balkline, one of the more prominent balkline games and of US origin, the name indicates that balklines are drawn 18 inches distant from each rail, and only two counts are allowed in a balk space before a ball must leave. In the heavily French-influenced lingo of carom billiards, the first of these shots is called the entrée and the second the dedans; in 18.1 or any other one-count balkline game, the one permitted count is called dedans.[1][16] By contrast, in 71.2 balkline, of French invention, lines are drawn 71 centimeters distant from each rail, also with a two-count restriction for balk spaces.[17]

Over its history, balkline has had many variations including 8.2, 10.2, 12.2, ​12 ¹⁄₂.2, 13.2, 14.1, 14.2, 18.1, 18.2, 28.2, 38.2, 39.2, 42.2, 45.1, 45.2, 47.1, 47.2, 57.2, and 71.2 balkline.[1][18] In its various incarnations, balkline was the predominant carom discipline from 1883 to the 1930s, when it was overtaken by three-cushion billiards (and pocket billiards). Balkline is still popular in Europe and the Far East.[1]

Jacob Schaefer Sr. tobacco card, c. 1880s; Schaefer was a dominant billiards player during the 19th century.

Cushion caroms, sometimes called by its original name, the indirect game,[19] is traceable to 1820s Britain and is a descendant of the doublet game, dating to at least 1807. The game is sometimes referred to as or one-cushion billiards or just one-cushion, the direct translation of its name from various other languages such as Spanish (una banda) and German (einband).[1]

The object of the game is to score cushion caroms, meaning a carom off of both object balls with at least one rail cushion being struck before the hit on the second object ball. Cushions caroms was defunct for a number of years, but was revived in the late 1860s as another alternative to straight rail, for the same reasons that balkline developed, i.e., as an alternative to the tedium engendered by the use of the rail nurse . Cushion caroms is still popular in Europe.[1][20]

In three-cushion billiards, sometimes called three-cushion carom,[21] or carambole, the object is to carom off both object balls with at least three rail cushions being contacted before the contact of the cue ball with the second object ball. Three-cushion is a very difficult game. Averaging one point per inning is professional-level play, and averaging 1.5 to 2 is world-class play. An average of one means that for every turn at the table, a player makes 1 point and misses once, thus making a point on 50% of his or her shots.

The origin of the game is not entirely known. It is undisputed that one Wayman Crow McCreery of St. Louis, Missouri popularized the game in the 1870s.[1][22][23] At least one publication categorically states he invented the game as well.[24] The first three-cushion billiards tournament took place January 14–31, 1878 in St. Louis, with McCreery a participant and New Yorker Leon Magnus the winner. The high run for the tournament was just 6 points, and the high average a 0.75.[25] The game was infrequently played, with many top carom players of the era voicing their dislike of it, until after the 1907 introduction of the Lambert Trophy.[1][26] By 1924, three-cushion had become so popular that two giants in other billiard disciplines agreed to take up the game especially for a challenge match. On September 22, 1924, Willie Hoppe, the world's balkline champion (who later took up three-cushion with a passion), and Ralph Greenleaf, the world's straight pool title holder, played a well advertised, multi-day, match to 600 points. Hoppe was the eventual winner with a final score in of 600–527.

Three-cushion billiards retains great popularity in parts of Europe, Asia, and Latin America,[1] and is the most popular carom billiards game played in the US today, where pool is far more widespread. The principal governing body of the sport is the Union Mondiale de Billard (UMB). It had been staging world three-cushion championships since the late 1920s.[27] The International Olympic Committee-recognized World Pool-Billiard Association (WPA) cooperates with the UMB to keep their rulesets synchronized.

A massé shot around a pin

In artistic billiards, sometimes called fantasy billiards or (in French) fantaisie classique, players compete at performing 76 preset shots of varying difficulty. Each set shot has a maximum point value assigned for perfect execution, ranging from a 4-point minimum for lowest level difficulty shots, and climbing to an 11-point maximum for shots deemed highest in difficulty level. There is a total of 500 points available to a player. The governing body of the sport is the Confédération Internationale de Billard Artistique (CIBA).[1][28]

Each shot in an artistic billiards match is played from a well-defined position (in some venues within an exacting two millimeter tolerance), and each shot must unfold in an established manner. Players are allowed three attempts at each shot. In general, the shots making up the game—even 4-point shots—require a high degree of skill, devoted practice and specialized knowledge to perform.[1][28]

World title competition first started in 1986 and required the use of ivory balls. However, this requirement was dropped in 1990. The highest score ever achieved in world competition was 374, by Jean Reverchon of France in 1992, while the highest score in competition overall is 427 set by Belgian Walter Bax on March 12, 2006, at a competition held in Deurne, Belgium, beating his own previous record of 425.[29] The game is played predominantly in western Europe, especially in France, Belgium and the Netherlands.[1][28]