Billiards is one of the ball sports. It is a kind of sports and leisure project in which players use a cue stick on the pool table to pass the ball and hit the white cue ball according to certain rules, so that the target ball is pocketed.

In terms of billiard tables, the original ball table is an ordinary wooden table. Due to the influence of the weather, the wood is deformed, and it is difficult to ensure the flatness of the table, which directly affects the performance of hitting skills. About 1827, slate was used as the table top, and there was a high-quality table that was smooth, flat and not deformed. The edge of the table was originally wrapped with dander or cotton and nailed to the edge of the table. Because there is no elasticity, it can only play a role in buffering the impact. It was not until 1831 that it was replaced by rubber.Here are the rules of billiards:

1. Compete

The tee-off order is determined by the tee shot, which is the first shot used in the game to determine the tee-off order. The player who wins the game gets the option to tee off.

2. Reset the ball

Reset Balls When it is necessary to reset or clean the balls, place the relevant balls back where they should be (corresponding placement points), if there is an obstacle ball that makes the action impossible. The reset ball should It is placed on the longitudinal axis between the laying point and the bottom bank, and as close as possible to the laying point, provided that it interferes with other balls.

3. Ball in hand

When the ball is in hand, the player can place the cue ball anywhere on the playing surface and can continue to move the cue ball before hitting the ball. Players may use any part of the club to move the cue ball, including the club head, but no forward strokes are allowed. In some games and in most tee shots, the placement of the cue ball is restricted to the area behind the tee line depending on the rules used in the game.

4. Refer to the ball and set the bag

In a game that implements the ball-and-pocket rule (specifying the target ball to be hit by the down-swing and the bag to be scored), the player must clearly inform the opponent which target ball is hit and which bag is to be scored.

5. Hit at the same time

If the cue ball hits a legal target ball and an illegal target ball at almost the same time and it is difficult to determine which ball is hit first, the situation is assumed to be the legal target ball being hit first.