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

Game Features

  • 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