42% complete
34/81 correct · 34 filled
Medium Board
Fast controls, saved progress, and premium-feel feedback.
Instant validation
Mark wrong placements as you enter them.
Reveal mistakes
Toggle visible mistake highlights when you want a cleanup pass.
Hints
0
Win rate
0%
Streak
0
Pick a cell to start.
Play as soon as the page opens.
The board comes first, while the archive, daily routes, and learning pages stay close by.
Complete 30 Sudokus in March 2026
Completed
0
Goal
30
Streak
0
Every finished board counts. Daily runs, random boards, and difficulty switches all move the counter forward.
Month challenge: finish 30 Sudokus before the month ends
This challenge is stored locally on your device, so you can keep the arcade-style rhythm without creating an account. Finish any mix of easy, medium, hard, expert, or daily boards to clear the month.
Every completed board counts toward the monthly total, including replayed difficulties and daily puzzles.
Use the Hall of Fame after each finish to save a retro alias and build a local cabinet of great runs.
A simple step-by-step Sudoku method that works
If you want to improve quickly, use the same routine every time you open a fresh board. These steps give new solvers a practical process that scales from easy boards to harder puzzles.
Step 1
Start with the fullest area of the board
Look for a row, column, or 3x3 box that already has many clue numbers. Those dense areas give you the most information and the safest first moves.
Step 2
Fill obvious singles before doing anything fancy
If one cell can only contain one value, place it immediately. New players improve fastest when they collect easy wins early and keep momentum high.
Step 3
Use notes when the board stops being obvious
Turn notes on when several cells could hold multiple values. Pencil marks help you keep possibilities visible instead of guessing from memory.
Step 4
Re-check the connected row, column, and box after every move
One correct placement often unlocks another nearby. The best Sudoku rhythm is not random searching; it is short, repeated scans of the connected units.
Step 5
Use hints and check as learning tools, not as substitutes for logic
A hint can show the next breakthrough. A check can confirm whether your process is still clean. Both are most useful when you pause and understand why they helped.
Play instantly
Load the page, pick a cell, and start solving. The game is tuned to feel immediate on desktop and mobile, with local saves instead of account friction.
Daily rhythm
Return for a fresh daily puzzle in every difficulty, keep your streak alive locally, and work through archive dates when you want a steady solving habit.
Learn while you play
Notes mode, hints, move checking, step-by-step tutorials, and focused strategy pages make the site useful for both first-time solvers and improving regulars.
Choose your pace
Every level has its own landing page, daily route, and archive links so you can move around the game quickly.
Medium
Balanced puzzles that reward pattern spotting and steady note work.
Expert
Sparse, thorny puzzles built for focused solvers chasing a serious challenge.
Today's daily lineup
Thu, March 12, 2026
Easy Daily Sudoku
Open today’s easy puzzle, continue from your local save, and keep your streak alive.
Play nowThu, March 12, 2026
Medium Daily Sudoku
Open today’s medium puzzle, continue from your local save, and keep your streak alive.
Play nowThu, March 12, 2026
Hard Daily Sudoku
Open today’s hard puzzle, continue from your local save, and keep your streak alive.
Play nowThu, March 12, 2026
Expert Daily Sudoku
Open today’s expert puzzle, continue from your local save, and keep your streak alive.
Play nowClean rules, calm play
Fill every row, column, and 3x3 box with the numbers 1 through 9 once each.Today's SUDOKU highlights related cells, matches, and conflicts so the board stays readable.
Use notes mode when a move is not obvious, tap hint when you need a nudge, and check the puzzle whenever you want a progress sweep.
Quick answers before you play
A few common questions from new solvers and returning daily players.
Can I continue a Sudoku game later?
Yes. Today's SUDOKU saves your current board, timer, notes, settings, and progress in local storage. If you refresh the page or come back later on the same device, the puzzle can continue where you left off.
Are there daily Sudoku puzzles?
Yes. Every day has a deterministic daily Sudoku in easy, medium, hard, and expert. That means each daily route is stable, shareable, and replayable from the archive.
Does Today's SUDOKU work well on mobile?
It does. The board, number pad, controls, and spacing are designed to stay fast and touch-friendly on smaller screens without sacrificing keyboard-friendly desktop play.
Build your Sudoku skill beyond one puzzle
Today's SUDOKU is designed to be both a polished place to play and a useful place to learn. These guides connect the game controls to the logic habits that make players better over time.
How to play Sudoku
Start with the fundamentals of the grid, the core rule set, and a beginner-friendly solving rhythm.
Sudoku rules
Learn the formal rules clearly so you can separate valid logic from accidental mistakes.
Sudoku strategies
Build stronger habits for scanning, eliminating, and progressing through tougher boards.
Sudoku tips for beginners
Use a cleaner process to improve faster and avoid the most common early habits that slow players down.
How to solve hard Sudoku
Focus on note discipline, pressure points, and patient rescanning when easy logic runs out.
What pencil marking means
Understand notes mode, why it matters, and how to keep pencil marks useful instead of cluttered.
Sudoku history
See where Sudoku came from, how it evolved from older number puzzles, and why the modern version became a global habit.