Frequently asked questions
Practical help with playing, saving progress and understanding rewards.
Are the games free?
Yes. All 28 games can be played without payment or an account. Coins and gems are virtual game rewards, not money.
Where are my scores and progress saved?
Progress is stored in this browser on this device. It does not sync across devices. Clearing site data, changing browsers or ending a private browsing session can remove it.
Where can I find the controls and scoring rules?
Open a game and scroll below the playing area. Expand How to play for rules, controls and scoring, or Tips & worked example for help with your next move. Controls differ between games.
How do daily challenges and streaks work?
The daily Sudoku uses the same Medium grid for everyone on a given date, with a new puzzle at midnight UTC. Past dates are available for practice. Completing it with fewer than three mistakes earns a bonus of 50 coins and 300 XP once per UTC day. Daily reward claims have their own streak; completing a puzzle does not claim the daily reward for you.
Am I competing against other players?
XP milestones track your accumulated XP. Personal bests show scores saved in your browser. These are personal progress features, not a live leaderboard of other players.
Can I play on a phone or tablet?
Game pages include touch controls where available, with instructions beneath each game. If a board feels cramped, try landscape orientation. Keyboard controls are listed separately for desktop play.