Any valid method of XP-earning counts toward the overall amount of XP earned for the ongoing competition.

Once a league has 30 participants, it is closed and a new empty league is the new open league.

When a user that is not yet in a league earns XP, it is joined in the open league for its rank. There is always one open league per rank, that doesn't have 30 participants yet, where people can join. Each user is assigned to a league that consists of 30 random participants of a common rank who earned their first XP of the week at a similar time.Competitions refresh on Mondays every week at midnight GMT.One league consists of one of the 10 possible gem ranks, ranked from lowest to highest: Bronze, Silver, Gold, Sapphire, Ruby, Emerald, Amethyst, Pearl, Obsidian and Diamond.The contest of Leaderboards runs as follows: Players must have PC or phone versions.The player must complete one lesson to join the leaderboard.Any test or story that gives 1 XP or more counts as one lesson. At least 10 lessons must already be completed (in any number of trees) before being eligible.In order to participate in a league competition:

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