Fresh puzzles
Every new game is generated locally and checked for a single valid solution.
PREMIUM BROWSER SUDOKU
A calm, distraction-free Sudoku game for desktop and mobile.
Generate fresh puzzles, use pencil notes, track your time, and continue exactly where you stopped—without creating an account.
Smart notes
Pencil marks are automatically cleaned as correct numbers are placed.
Autosave
Your active puzzle, notes, timer, and progress remain safely in this browser.
HOW TO PLAY
Fill every row, column, and 3×3 box with the numbers 1 through 9.
Each number can appear only once in each row, column, and box. Start with squares that have fewer possibilities and use Notes to keep track of candidates.