Easy
Start with full-confidence rows and columns. Clear obvious singles first, then finish the easiest 3x3 boxes before checking tougher cells.
Play the daily Sudoku puzzle for March 21, 2026. Pick your difficulty level, solve the Saturday grid, and keep your routine consistent. One fresh puzzle per day, no ads, no account required.
Get free printable Sudoku packs in multiple difficulty levels and large-print format.
Take today's momentum offline with this week's free printable pack. Choose your level and solve on paper anytime.
Print this week's Sudoku pack (free PDF)Start with full-confidence rows and columns. Clear obvious singles first, then finish the easiest 3x3 boxes before checking tougher cells.
Work in short passes across the grid. Use candidate notes when two or three options remain, then return to boxes with only one valid placement.
Hard grids reward structure. Track candidates carefully, compare linked rows and boxes, and remove contradictions early before committing to longer chains.
Expert play needs deliberate pattern checks. Build clean candidate maps, test eliminations across houses, and confirm each placement against the whole grid.
This is the daily Sudoku puzzle for March 21, 2026 (Saturday). Choose your difficulty level to play the grid for this date.
Stuck mid-solve? Here's what to try when you're stuck.
Want a smarter solve, not just a faster one? Explore our Sudoku strategy guides for scanning, candidate notes, hidden singles, and advanced pattern spotting.
Printable mode: Prefer pencil and paper? Use the printable Sudoku hub for clean PDF packs and offline sessions.
App mode: Want a calmer daily routine? Play in the app for quick starts, note-friendly controls, and streak-ready sessions.
The Sudoku a Day iPhone app gives you a fresh puzzle every day with dark mode, progress tracking, and zero ads. Pick up where you left off, anytime.
Get daily Sudoku remindersWant more than today's puzzle? Download printable Sudoku PDFs for Easy through Master, including compact 4-per-page layouts, large-print 6-per-page layouts, and printable packs with answers if you want to practice offline and check your work later.
Download printable Sudoku PDFsIf you want a deeper breakdown of what each level means, read difficulty levels explained.
Studies on adults over 50 show regular puzzle-solving is linked to better cognitive performance. Even a single 5-minute Easy puzzle counts. If you want to build faster, use the strategy guides alongside your daily sessions.
If one puzzle is not enough, download printable Sudoku PDF packs or explore Sudoku strategy guides to unlock harder grids.
You can also review how to play Sudoku if you want a quick refresher before moving up in difficulty. If you get stuck mid-solve, the what to do when stuck guide walks through the next moves to try.
Not sure why a daily habit helps? Read why solving one Sudoku a day actually matters — the science and reasoning behind a daily practice.
Looking for an ad-free Sudoku app? Here's what makes ours different.
Yes. Open any date from the daily archive, or use the prev/next date links on this page to jump day by day.
No. You can start right away and play with no account setup.
Yes. You can play a free daily Sudoku puzzle and choose your difficulty level.
A new daily Sudoku puzzle is published each day.
Yes. You can choose Easy, Medium, Hard, Expert, or Master based on your time and skill.
Use printable Sudoku PDF packs or continue with additional grids in the app.
Yes - a completely new puzzle is available every day at midnight. Each day brings fresh grids across all difficulty levels (Easy, Medium, Hard, Expert, Master), so there's always a new challenge waiting.
There are 5 difficulty levels available every day: Easy, Medium, Hard, Expert, and Master. Easy is ideal if you're learning; Master-level grids require advanced techniques like X-Wing and XY-Wing. You can switch difficulty at any time before starting.
You are viewing the puzzle for March 21, 2026. For other dates, use the date navigation above. The Sudoku a Day app includes an archive of all past daily puzzles.
Easy is the best starting point. Easy puzzles can be solved with just two techniques — naked singles and hidden singles — so you can build confidence without advanced methods. Once you finish Easy puzzles reliably, step up to Medium. Read the difficulty levels guide for a full breakdown.
Use these quick links to level up your solve flow and move between nearby puzzle dates without losing momentum.