Free Sudoku Online — Play Free Sudoku Puzzles No Login | SudokuMaster
9 × 9 — Easy
Click a cell, then a number to fill it in
💡 3 hints
00:00
Mistakes:
Arrows / Tab — move · 1–9 — fill · Backspace — erase · N — notes · H — hint · P — pause · Ctrl+Z — undo · Esc — close
How do I play Sudoku?
Fill every row, column, and box with the numbers 1–9 (or 1–N for other grid sizes) so each number appears exactly once. Click a cell, then press a number. Use hints and notes for help.
What grid sizes are available?
4×4 (beginners), 6×6, 9×9 (classic), 12×12, 16×16, and 25×25 (extreme challenge). Select any from the sidebar.
Do I need to create an account?
No. Just visit and play. Your progress, streak, and settings are saved automatically in your browser. No login, no signup, no email needed.