What are the rules in rugby seven?

Answer 1

The rules are the same as 15 aside games with the following ammendments

There are several variations in laws which apply to Rugby Sevens,[8] primarily to speed up the game and to account for the reduced number of players. The main changes can be summarised as follows:

• Seven players per team on field (instead of 15).
• Five substitutes, with only three interchanges (instead of 7 and 7).
• Seven minute halves, though ten minute halves are allowed in the final of a competition (instead of forty minute halves).
• One minute half-time, two minutes in finals (instead of ten minutes).
• Matches drawn after regulation are continued into Extra Time, in 5-minute periods.
• All conversion attempts must be drop-kicked (instead of having the option to place-kick).
• Conversions must be taken within 40 seconds of scoring a try (instead of 60 seconds).
• Three player scrums (instead of eight players).
• Kick-offs: in sevens, the team which has just scored kicks off, rather than the conceding team, as in fifteen-a-side.
• Yellow cards net a 2-minute suspension (instead of 10 minutes).

Suspensions are more severe in Sevens than in Fifteens. The team plays a man down for 1/7 of the match instead of 1/8, and losing 1 man out of 7 opens up more space than 1 man out of 15.

• Referees decide on advantage quickly (where one play usually ends advantage, not true in fifteens).
• In major competitions, there are additional officials present (in-goal touch judges) to judge success of kicks at goals and hence the game is not delayed waiting for touch judges to move into position to judge conversion attempts.