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It is played on a large (12 feet by 6 feet) table that is covered with a smooth green material called baize and has holes (called pockets) in each of the four corners and in the middle of each of the long side cushions.
The players use long thin sticks called cues to strike a white ball (the cue ball). The cue ball must always be hit first when attempting a shot at the target ball.
There are 21 target balls in total - 15 red balls (worth 1 point each) and 6 colours: a yellow (2 points), green (3 points), brown (4 points), blue (5 points), pink (6 points) and black ball (7 points).
Each target ball must be aimed or 'potted' into one of the pockets in order. A red ball followed by a colour then a red ball again. This happens until only the coloured balls are left. The colours then have to be potted in the following order: yellow, green, brown, blue, pink and black.
The player who scores more points wins the game or 'frame'. A match consists of an agreed number of frames.