In this event, you need to solve the Treasure Box puzzle in order to get into the player leaderboard. Your league will be determined based on your place on the leaderboard by the end of the event.
Your rewards depend on what league you're in. The higher your league, the bigger your rewards. There are a total of five leagues in the game:
You move to a different league gradually. To upgrade your league, take one of the top spots on the leaderboard. Please note that if you place low in the competition, you can lose your current position and move back to your previous league.