Rugby is a sport that appeared in the 19th century, but many do not know that there was actually a split between the umbrella organizations of this game, so there have been two different versions for a long time, which started with the same rules, only to move away from one of them over the years.
So we have the Rugby Union version, which is played with 15 players in the field, of which the wing forwards have the greatest chances to score. The match lasts 80 minutes, and the team can get the most points if it scores a "try", i.e. crosses the end line of the opponent's defensive half and passes the ball.
He can get 5 points for that move, and 2 additional points if he hits a free kick and sends the ball between the forks of the opponent's goal. Another 3 points can be taken by the team through a "drop goal", i.e. a kick from the game, but also from a penalty kick, which is judged for serious violations of the rules of the game.
Another version is Rugby League, in which the number of players in the field is reduced to 13, and the scoring is also different. For a try, the team gets 4 points, with 2 extra points if it takes a free kick. "Drop goal" brings only one point here, and a penalty kick brings 2 points.
There is another famous version that is played in the Olympics, and that is Rugby Sevens. The rules are similar to the Rugby Union version, only played on a smaller field, only 10 minutes per half, with seven players in the field.