Crown Clash is a time-limited competitive event in Angry Birds Match where you compete with other players by collecting crowns. During the event, you earn crowns by completing levels and your total crown count determines your position on the leaderboard.

Each Crown Clash runs independently, meaning your progress does not carry over between events. Also, every new event starts fresh for absolutely all players.

To take part, you need to reach level 25 in the game. Once the event is live, click the "Start" button inside the event and you automatically join by simply playing and completing levels. 

Crowns are earned through normal gameplay with harder levels such as Hard, Super Hard and Extremely Hard typically rewarding more crowns than easier stages, making progression and challenge levels an important part of climbing the ranks. Your ranking updates continuously during the event, allowing you to track how you compare against other participants in real time.

When Crown Clash finishes, rewards are distributed based on your final position. So, the more crowns you collect during the event window, the higher your potential reward!