Are you ready for 200 completely unique and challenging puzzles? XXI gets harder as you progress your way through. Can you become a XXI champion?
Solving The Puzzles
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.
- 200 Unique & Challenging Puzzles
- Game Achievements (V, X, L, C, CC)
- Highest Level Leaderboard
- Beautiful Music, Sounds, and High Definition Graphics
- Share Solution Photos with Friends
- Universal App looks Great on iPhone and iPad
- Supports all iOS and Android devices