Frequently asked questions
What is Classic Sudoku?
Classic Sudoku is a sudoku game published by Omni-Lord. It holds 360 puzzles in three levels (Gentle, Moderate, and Demanding), and every puzzle is verified to have exactly one solution.
Does Classic Sudoku need an account or a connection?
No. There are no accounts, and the game is fully playable offline. Your statistics are stored only on your device.
How do the daily challenge and the levels work?
The daily challenge deals the same puzzle to everyone on a given calendar date, picked by a fixed hash of the date. The three levels are free play: each level button deals the next of that level's 120 puzzles in order.
How do I play?
Tap a square, then tap a number to place it. Turn Notes on to pencil small candidate marks into a square instead. A wrong number is marked and explained, never locked, and Hint fills a square with its correct number, free.
What do the statistics mean?
A game counts as played at your first placed number or hint, and as won the first time you complete it. The panel shows, per level, games played and won, your win rate, and your best and average win times, plus your daily streak.