<Li> A try may not be scored in a scrum which crosses the goal line, but when the ball comes out of scrum a player may pick it up and' bore through' their own scrum to score a try . </Li> <Li> Video referees in rugby league are given a wider scope to look at the validity of a try . If the onfield referee is unsure or needs clarification, they may refer to the video referee to award a possible try . This referral must also be sent with the onfield referees opinion on whether the play is a' Try' (signaled by forming a' T' with their forearms) or' No Try' (signaled by folding their arms across the shoulders). The video referee must then find evidence to support the opinion, or conclusive evidence against the opinion . In the event the video referee cannot prove or deny the opinion, the original opinion is upheld . </Li> <P> In rugby union, a try is worth five points, in rugby league, four . Although a try is worth less in rugby league, it is more often the main method of scoring due to the smaller value of a goal kick and surety of possession . In rugby union, however, there is heavier reliance placed on goals to accumulate points at elite levels due to the significant value of goals and the defending team's skills . </P> <P> In rugby union, the value of a try has varied over time, from none to five points . In rugby league, the original value was three; this was increased to four in 1983 . </P>

How many points is a tri in rugby
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