Menu

Play Sudoku Online

Time00:00
Mistakes0

Use arrow keys to move one cell, Home and End to move within a row, digits 1 through 9 to enter a value, N or Space to toggle notes, hold Shift to temporarily reverse the input mode, H to request a hint, Shift plus H to apply an explained step, and Escape to pause.

WHY SUDOKU0

Everything you need to stay focused.

Play certified puzzles, learn with clear explanations, or take a fresh daily challenge—without an account.

Daily Sudoku

Three fixed puzzles for each local date. Complete any level on consecutive days to build your streak.

Today’s challenge

Clear hints

First find the target cell, then reveal the reasoning before choosing whether to apply a step.

See how hints work

Learn Sudoku

Build from the rules and candidate notes to pairs, box-line interactions, and X-Wing.

Open the learning path

Printable puzzles

Print four certified grids at a time with a separate answer page and stable puzzle IDs.

Choose a printable sheet

Private by default

No account is required. Progress, preferences, streaks, and best times stay in your browser.

Read the privacy policy