What coin is LIBERO (when can pi coins be traded)

Volleyball is a collective game. Each team consists of 12 players. Each team sends 6 players to compete on a field separated by a net. The purpose of the game is for each team to follow the rules and hit the ball over the net so that it falls on the ground in the opponent's court and to prevent the ball from falling on the ground in their own court. Each team can hit the ball 3 times (except blocking the ball) and hit the ball back to the opponent's court. The game starts with a serve, and the server player hits the ball to fly from the net to the opponent's court. The game continues until the ball hits the ground, goes out of bounds, or a team cannot legally hit the ball back to the opponent's court. The volleyball match adopts a best-of-five-set system, and the team that wins three sets wins one. During the game, if a team wins 1 goal, it will get 1 point (score per goal system). When the receiving team wins a ball, it gets 1 point and gets the right to serve at the same time. The players rotate one position in a clockwise direction. In each game (except the fifth game of the deciding game), the first team to score 25 points and lead the opponent by 2 points wins the game. When the score is 24:24, the game continues until a team leads by 2 points (26:24, 27:25). The first team to score 15 points in the tiebreaker and lead the opponent by 2 points wins. When the score is 14:14, the game continues until a team leads by 2 points (16:14, 17:15). Serving fouls Serving fouls include fouls during the service and the fouls after the service is hit. Fouls when serving and hitting: (1) The order of serving is wrong; (2) The server touches the court (including the end line) or the ground outside the service area when hitting the ball or when the ball is taking off; (3) The server touches the ground outside the service area; The ball is not hit within 8 seconds after the referee blows the whistle to allow the ball to be served; (4) The ball is hit without being thrown up or the ball holder is not clearly evacuated; (5) The ball is hit with two hands or thrown with one hand , push out; (6) Throw the ball up and prepare to serve but fail to hit the ball. Fouls after the service is hit: (1) The ball touches other members of the serving team or the ball does not pass through the vertical plane of the net from the passing area; (2) Foul ball; (3) The ball passes the individual or person who is covering the service Collective (when serving, if a player or two or more players stand in close proximity or wave their arms, jump, or move to block the receiving player, and the ball flies over him or them, it constitutes an individual or collective serve cover foul) . The rules of positional volleyball stipulate that when the server hits the ball, if a player on the court is not in his correct position, it constitutes a positional foul. Any of the following situations is a positional error foul: (1) When the server hits the ball, other players on the field are not completely standing in the court area; (2) When the server hits the ball, the players on the field do not press the "Every player" button. Each front row player must have at least part of one foot closer to the center line than both feet of the back row player in the same row"; (3) When the server player hits the ball, the players on the court do not press the "Each left (right) player "At least part of one foot is closer to the left (right) sideline than the feet of the middle player of the same row." Fouls during hitting. Combination fouls. During a volleyball game, any part of a player's body may touch the ball. However, if a player (except the blocker) hits the ball twice in a row or the ball continuously touches different parts of his body, it is a consecutive foul. However, during the first shot, a player is allowed to have the ball continuously touch different parts of his or her body during the same shot. During the game, a volleyball player may touch the ball with any part of his body, but the ball must be hit and must not be caught or thrown, otherwise it will be a foul. Four Batting Fouls A team touches the ball four times in a row (except blocking) for four hitting fouls. Whether a player hits the ball actively or passively, it is counted as one hit by the player. A hitting foul is committed if a player uses the support of a partner or any object to hit the ball on the playing field. Fouls committed by players near the net include fouls for hitting over the net, fouls for crossing the center line, fouls for touching the net, and fouls for crossing the net into the opponent's space and hindering the opponent's game, etc. Touching the ball in the opponent's space before or during the opponent's offensive shot is a foul. During the game, if a player's entire foot, hand or any other part of the body crosses the center line and touches the opponent's court, it is a foul for crossing the center line. During the game, it is not a foul if a player touches the net or the flag pole. However, it is a foul if a player touches the net or the flag pole when hitting the ball or interfering with the game. After hitting the ball, players may touch the net posts, net ropes beyond the full length of the net, or any other objects, but they must not affect the game. During the game, players are allowed to cross under the net and enter the opponent's space as long as it does not hinder the game. If a player who crosses the net and enters the opponent's space hinders the opponent's game, it is a foul. Players from both teams or members of the same team who hit the ball at the same time may touch the ball at the same time. If two or more players of the same team touch the ball at the same time, it will be counted as two or more hits (except for blocks). After both players hit the ball on the net at the same time, if the ball falls into the court, the game should continue, and the team that gets the ball can still hit the ball three times. Blocking fouls Blocking fouls include blocking fouls over the net, blocking fouls by back-row players, blocking fouls, and blocking fouls by extending into the opponent's space from outside the sign pole. Blocking the ball in the opponent's space before or during the opponent's offensive shot is an over-the-block foul. The basis for judging an over-the-net block is the time when the offensive player and the blocker touch the ball. If a back-row player or a back-row free defender completes a block or participates in a group that completes a block, it is a foul for the back-row player to block the ball. Blocking the ball from the opponent is a foul.Reaching into the opponent's space from outside the sign pole to block and touching the ball is a blocking foul. An offensive hitting foul by a back-row player occurs when a back-row player steps on the offensive line (or its extension line) in the front court area and hits the ball, which is higher than the upper edge of the net, across the vertical surface of the net or touches the opponent's blocker. It is an offensive hitting foul by a back row player. Timeouts and Substitutions During the game, each team can request up to 2 timeouts and 6 substitutions. Pause time is limited to 30 seconds. In the 1st to 4th games, there are two additional technical timeouts of 60 seconds each in each game, which are automatically executed whenever the leading team reaches 8 points and 16 points. In the deciding game (5th game), there is no technical timeout. Each team can request two 30-second ordinary timeouts in this game. Relevant regulations for free defenders: Each team in a volleyball match can choose 1 player from the final 12 confirmed players as a free defender (Libero). Libero players wear uniforms of a different color than other players. Before the game, the free defenseman must be registered on the score sheet with the word "L" written next to it, and his number must be registered on the lineup position sheet for the first inning. Free defensemen only participate in the game as special back-row players and are not allowed to hit the ball higher than the net directly into the opponent's court to complete an offensive shot in any position (including the playing field and barrier-free area). Libero defenders may not serve, block or attempt to block. When a free defender makes an overhand pass in the front court and the entire ball passed is higher than the upper edge of the net, his partner may not complete an offensive shot of the ball higher than the net.

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