A QUIET CLASSIC
Sudoku.
Using a hint or restarting this puzzle means your time will not count toward the leaderboard. Your completed game still counts toward your statistics.
Preparing your puzzle…
Play freely. Sign in to save account results and earn trophies.
How to play
Fill each row, column and 3 × 3 box with 1–9. Starting numbers stay fixed. Select a cell, then use the number pad or your keyboard. Arrow keys move; Backspace or Delete erases. Notes adds small pencil marks. Wrong numbers count as mistakes; undo does not remove that count.
Each puzzle allows three hints, each filling one correct cell. Undo, restart and reload do not replenish hints. Account rankings use your best time on each difficulty, without hints or restarts. The timer keeps running while you are away. Restart keeps your time, mistakes and hints.
Easy uses singles; Medium adds hidden singles; Hard needs pairs or locked candidates; Expert needs more advanced deductions. Sudoku trophies celebrate substantial milestones.
Your Sudoku statistics
Account statistics are available when you sign in.