Question 1

What is the difference between Daily and Casual puzzles?

Accepted Answer

Daily puzzles are shared by everyone on the same day, so you can compare times and scores. Casual puzzles are unlimited and let you practice at your own pace with no pressure.

Question 2

Do I need an account to play?

Accepted Answer

You can play Daily puzzles, Versus mode, and view leaderboards without an account. You need an account for Casual mode, Training Ground, Ranked Hub, and saving your stats and progress.

Question 3

How does Versus mode work?

Accepted Answer

Versus is a real-time casual mode for friends. Create a lobby code, share it, and play the same puzzle together. For trophies, tier progression, and ranked matchmaking, use Ranked Hub.

Question 4

What are Training Ground lessons?

Accepted Answer

Training Ground is a guided set of mini lessons that teach classic Sudoku techniques step by step. Each lesson includes smart hints and practice exercises so you can learn by doing.

Question 5

Why do I see a mistake shake sometimes?

Accepted Answer

If you place a number that does not match the current exercise or violates the puzzle rules, the board will shake to let you know it is incorrect. You can undo and try again.

Sudoku FAQ & Help