Daily Evil Sudoku
A brand-new evil-difficulty puzzle every day — the same fiendish 9×9 board for everyone, free in your browser. Solve today’s, then come back tomorrow for the next one.
How the daily evil puzzle works
Each day we generate one fresh evil Sudoku and serve it to everyone. The puzzle is date-seeded — its starting numbers are derived from today’s calendar date in UTC — so you and every other solver are working the exact same board. It resets once a day, every day.
One honest promise: today’s puzzle has a single, unique solution. There is always one correct answer to find — it just takes patience and the right advanced techniques to get there. Reload this page any time and the day’s board comes right back.
Want more evil Sudoku?
Finished today’s and itching for another? The evil Sudoku flagship serves unlimited fresh evil puzzles on demand — no waiting for tomorrow.
Daily Evil Sudoku FAQ
Is the daily evil Sudoku the same for everyone?
Yes. The daily puzzle is date-seeded from the calendar date in UTC, so every solver who opens this page on the same day gets exactly the same evil board. It is the same challenge worldwide — compare your time with friends.
When does the daily puzzle reset?
Once a day. The seed is the calendar date in UTC, so a brand-new evil puzzle appears at the start of each UTC day and stays put until the next one.
Is the daily evil Sudoku free?
Completely free. It plays instantly in your browser with no download, no account and no paywall — just open the board and start solving.
Can I play past daily puzzles?
Not yet — there is no archive at launch, so the page always serves today’s puzzle. If you want more right now, the evil Sudoku flagship serves unlimited fresh evil puzzles on demand.