Is Sudoku Life free?
Yes. Sudoku Life is free to download and play on the App Store and Google Play. It is supported by ads.
Which devices and languages does Sudoku Life support?
iPhone, iPad, and Android phones and tablets. The interface is available in English and Traditional Chinese.
What is the fog in Sudoku Life?
Every time the difficulty levels up, 3–5 numbers you already filled in are covered by drifting fog (up to 15 at once). Fill the correct numbers back in and the fog blows away.
How does the difficulty change?
Every board starts on Easy. Five correct answers in a row move you up one level: Easy, Medium, then Hard. 45 seconds without a move drops you from Hard back to Medium, with at least 2 minutes between level changes. Once you reach Medium you never drop back to Easy.
How do I enter Fever mode?
Reach Hard and keep your combo at 5 or more. The whole screen ignites; one wrong answer breaks the combo and ends Fever.
How do I get an S grade?
Solve the board with zero mistakes and zero hints for S. Up to 2 mistakes and no hints is A; up to 5 mistakes and at most 1 hint is B; anything else is C.
How is the score calculated?
Each correct cell is worth 15 points plus a speed bonus for answering quickly. Every 5-combo adds a combo bonus. A wrong answer costs 10 points.
When does the weekly leaderboard reset?
Every Monday at 00:00 UTC. All players start the new week from zero.
Do I need an account?
No. An anonymous profile is created the first time you open the app, with the nickname Player. You can change it to any 1–20 character name on the leaderboard screen.
Can I play offline?
Not at the moment. An internet connection is required to start a game.
I've never played sudoku. Can I still play?
Yes. The first launch includes an interactive tutorial that teaches the rules in three steps: no repeated 1–9 in any row, any column, or any 3×3 box.