Keep the sum between 0 and 21 in this intense and addictive puzzle game. Push your logic to the limit, pass increasingly difficult levels, and earn diamond rewards to unlock stylish new card themes. How long can you hold on?
Updated on
Sep 1, 2025
Puzzle
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted
See details
What’s new
Keep the sum between 0 and 21 in this intense and addictive puzzle game. Push your logic to the limit, pass increasingly difficult levels, and earn diamond rewards to unlock stylish new card themes. How long can you hold on?