42% complete
34/81 correct ยท 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.
Medium Sudoku
Medium Sudoku on Today's SUDOKU is designed for fast starts, readable controls, and meaningful learning. Balanced puzzles that reward pattern spotting and steady note work. Ideal for regular players who want a satisfying challenge without turning every puzzle into a long grind. Every board supports notes, hints, move checking, local persistence, and clean mobile play.
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.
How to approach medium Sudoku
Every medium board has its own tempo. Use this short plan to match your process to the difficulty instead of solving every level the same way.
Step 1
Add notes where uncertainty starts
Medium boards are usually the point where notes become a practical tool instead of an optional extra.
Step 2
Compare box constraints against rows and columns
A medium puzzle often opens when one candidate can only fit a single spot within a box-row or box-column interaction.
Step 3
Keep the board tidy
The cleaner your notes and the more often you prune them, the easier it becomes to spot the next real move.
Tips for medium Sudoku
Use these focused tips to get more out of every medium puzzle.
Who this level is for
Ideal for regular players who want a satisfying challenge without turning every puzzle into a long grind.
How to approach it
Use notes earlier than you think, especially when a row has three or four open cells.
Compare a box to its intersecting rows and columns to spot hidden singles.
Clear stale notes after each confirmed placement so patterns remain readable.
Medium boards reward rhythm: scan, place, rescan the connected units, then repeat.
Keep exploring
Try the daily version, browse archive dates, or switch to another level.
Keep improving beyond medium boards
These learning pages connect directly to the solving habits that matter on this difficulty, from board fundamentals to better note discipline.
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.