Snooker is a cue sport that is played on a baize-covered table with pockets in each of the four corners and in the middle of each of the long side cushions. It is played using a cue and snooker balls: one white cue ball, 15 red balls worth one point each (sometimes played with fewer red balls, commonly 6 or 10), and six balls of different colours: yellow (2 points), green (3), brown (4), blue (5), pink (6), black (7). A player (or team) wins a frame (individual game) of snooker by scoring more points than the opponent(s), using the cue ball to pot the red and coloured balls. A player (or team) wins a match when they have achieved the best-of score from a pre-determined number of frames. The number of frames is always odd so as to prevent a tie.
Snooker is played on a rectangular snooker table with six pockets, one at each corner and one in the middle of each long side. The table usually has a slate base, covered in green baize. At one end of the table (the baulk end) is the baulk line, which is 29 inches (74 cm) from the baulk cushion (the short cushion at the baulk end). A semicircle of radius 11 1⁄2 inches (29 cm), called the D, is drawn behind this line, centred on the middle of the line. The cushion at the other end of the table is known as the top cushion.