NHL competitions proceed on the ground. In a general way; there are six players on the ground at the same time. Each team has a goalkeeper and five players who all wear skates. One of the sides will get a score if they shoot the hard rubber disc that is called “Puck” across the enemy’s goal. Players use a curved blade of long bar to control the ice hockey.Each formal NHL game will spend sixty minutes. The competition is divided into three sections, each section will cost twenty minutes. Between each section, there is a pause of fifteen minutes. A team will win if its players shoot into the maximum number of goals. If two teams break even in the end of the formal time, overtime will be carried out. Overtime adds up to five minutes and uses the golden format. Any side that shoots into the first goal immediately will win. But each team can only send four people to participate in, not including the goalkepper. If the game still points in the overtime, it will win out in the plum flower form of bamboo shoots between each ball; each team will point three players to shoot the ball in the form of single-handedly shot. If there is no result after three rounds of shooting, each team will continue to shoot to each other until the tie is briken. In the end of the game, two points will be given to the winner and the loser will be offered with one point.In the playoffs, the overtime rules are different. The system of shooting to each other is cancelled and replaced by the five to five unlimited twenty minutes, it take the same golden goal system. In theory, the game could have the possibility to carry on, however, only a few games were as many as four overtime periods and no more than six periods.NHL season is divided into two parts. One is according to a predetermined schedule for the regular season, and the knockout of seven playoff systems, four win the Final Round in playoffs, Stanley Cup was awarded by the champion team.There are eighty-two games in the regular season, including 41 games at home and 41 games away from home. Each year, the two interleague sections will take turns, analogous to the major baseball game of the United States. Each game will accumulate points; the winning team will get two points. A team can get one point in overtime, even if they lose the game. The team, which loses in the regular time, will not have integral points. NHL is the only team to lose points in overtime in the sports league of profession.
In the 1920s, there were dark clouds of postwar in North America, but hockey was booming. In 1924, NHL expanded to six teams, joined the first United States team and
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