Offside in open play
Offside is quite a complicated rule of rugby league, so make sure you pay attention and listen to what the referee is saying.
If a player is in front of a team-mate in possession of the ball, or in front of their team-mate who last played the ball, they will be offside if:
They are actively trying to play the ball
They do not retire within 10m of an opponent waiting for the ball
They move towards the opponents or the place where the ball lands without first coming back onside
The referee will award a penalty at the place where the offence took place.