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Like most forms of modern football, rugby league football is played outdoors on a rectangular grass field with goals at each end that are to be attacked and defended by two opposing teams. The rules of rugby league have changed significantly over the decades since rugby football split into the league and union codes. This article details the modern form of the game and how it is generally played today, however rules do vary slightly between specific competitions.

A game of rugby league consists of two forty-minute halves, played by two teams on a rectangular grass field of 120 metres in length and 58–68 metres in width depending on the individual ground. In the middle of the field is the 50-metre "halfway" line. Each side of the field, on either side of the 50-metre line, is identical. 10 metres from the 50-metre line is the 40-metre line, followed by the 30, 20, 10-metre and goal or 'try' lines. This makes up 100 metres of field that is used for general play (JK).

At the middle of each goal line is a set of goal posts in the shape of the letter 'H', used for point scoring from kicks (drop goals, penalty goals and conversions). Six to twelve metres beyond each goal-line is the dead ball line. The area between these two lines is called the in-goal area, and varies from field to field.

The dead ball lines and the touch-lines (side lines) make up the boundary of the field of play. If the ball (or any part of the body of a player in possession of the ball) touches the ground on or beyond any of these lines, the ball is said to be dead and play must be restarted.

Players of rugby league all need to be particularly physically fit and tough because of the game's fast pace and the expansive size of the playing-field as well as the inherently rough physical contact involved. Depending on their exact role or position, a player's size, strength and/or speed can provide different advantages (or disadvantages). Effective teamwork is also extremely important as all players must work in concert with each other if they are to be successful.

After a coin toss with the two captains and referee, the winner elects to either kick off or receive the kick off and chooses which end of the field to attack for the first half (the ends changing over after the half-time break).


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