XXI puzzles require a sum of 21 in every row and column. Move the gems around on the board until a solution is found. All gems have a unique numerical value, but watch out for the special gem that can be either a 1 or 11. Puzzles get harder as you progress your way through all 200 levels. Can you become a XXI champion?

FEATURES
- 200 Unique & Challenging Puzzles
- Google Play Achievements (V, X, L, C, CC)
- Google Play Leaderboard for Highest Level
- Beautiful Music, Sounds, and Graphics
- Optimized for all Android Phones and Tablets
- Share Solution Photos with Friends

Thanks for playing XXI by TMSOFT and good luck!

Website: https://games.tmsoft.com/xxi/