If the jack lands less than 6 meters (20 feet) or more than 10 meters (33 feet) and is challenged, what should be done next?

The teams should measure the distance between the throwing circle and the jack. (That's why a tape measure is a standard piece of petanque equipment.) If the distance is less than 6 or more than 10 meters, the thrown jack is considered invalid. Traditionally, the team that threw the invalid jack would throw the jack again. Starting in 2016, however, the international rules changed and now (in official competitions) a team has only one chance to throw a valid jack. If it fails in its one attempt, the jack is turned over to the opposing team which then places it by hand on the terrain.