Sudoku game lobby
Sudoku game lobby
Difficulty
Time
0:00
Mistakes
0
3Starting in
Keyboard: arrows move, 1-9 fill, N notes, Backspace clears.
Starting in 3…
The Sudoku board is below. Pick a difficulty, tap a cell, use notes when needed, and solve the grid at your own pace.
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About Sudoku
Classic Sudoku on Games I Know is built for solo play: fresh puzzles every new game, note mode, keyboard controls, a visible timer, progress, and mistake tracking on phone or desktop.
How to play Sudoku
- Choose easy, medium, or hard to start a new puzzle.
- Tap an empty cell, then tap a number from 1 to 9, or switch on notes to mark candidates.
- Fill every row, column, and 3x3 box without repeating a digit to complete the puzzle.
Rules, tips, FAQs, and diagrams: see the Sudoku guide on the main game page.
Why play Sudoku here?
- Runs entirely in the browser with no signup or download.
- Touch-friendly grid, number pad, notes, and keyboard shortcuts for smooth solving.
- Embed the same Sudoku widget on blogs, school pages, and resource hubs.
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