Indoor games and sports is captured and removed from the board. The object of the game is to trap (checkmate) the enemy king by putting it in a position where it cannot escape capture. Various indoor games, including billiards, snooker and pool, are played on a large, flat, cloth-covered table with six pockets. In these games, each of the two players tries to pot the balls (knock them into the pockets) by striking them with a cue-ball, which is hit with the tip of a stick called a cue. In "billiards", there are just three balls: a white cue-ball for each player and one
Snooker who played. In 1959, Davis introduced a variation of the game known as "snooker plus" (see the "Variations" section below) to try to improve the game's popularity by adding two extra colours, but it never caught on. A major advance occurred in 1969, when David Attenborough commissioned the snooker television series "Pot Black" to demonstrate the potential of colour television with the green table and multi-coloured balls being ideal for showing off the advantages of colour broadcasting. The series became a ratings success and was for a time the second-most popular show on BBC Two. Interest in the game increased