Sudoku365
Daily Sudoku Archive — 2026
Every day of 2026 has four daily Sudoku puzzles — Easy, Medium, Hard, and Expert. The full year is archived, so you can always jump back and play any date you missed.
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About the Daily Archive
Every puzzle in the archive has the following properties:
- Unique: Exactly one solution.
- Solvable with logic: No guessing required at any difficulty.
- Properly rated: Difficulty reflects the techniques needed to solve it.
- Permanently available: Older puzzles stay online — solve them any time.
Difficulty Levels Explained
- Easy (38–40 clues): Solvable with basic scanning and naked singles.
- Medium (33–35 clues): Needs hidden singles and naked pairs.
- Hard (29–31 clues): Needs locked candidates and intermediate patterns.
- Expert (25–27 clues): Expects X-Wing, Swordfish, and similar advanced tactics.
Build Your Solving Streak
Playing daily is the fastest way to improve. Progress is saved automatically in your browser, so you can always pick up where you left off.
Tips for consistent solving:
- Start each morning with an Easy puzzle to warm up.
- Progress to Medium as you gain confidence with the basics.
- Save Hard puzzles for longer sessions on weekends.
- Attempt Expert puzzles when you have time to focus.
Need help? Work through the strategy guides to learn the techniques behind each level.
Last reviewed on April 23, 2026.