Daily Challenge
Tournament
Best Times

Play

Medium Sudoku
Puzzles Online

Free Online Sudoku Games

Medium Sudoku puzzles are perfect for players looking for a fun, quick puzzle to complete. Play every day and you’ll soon see your concentration and confidence grow.

PLAY MEDIUM SUDOKU NOW FOR FREE!

User Notice:
Please wait for the sudoku board to load numbers. This may take a few seconds depending on your internet speed.
Difficulty:
  • Easy
  • Medium
  • Hard
  • Expert
  • Master
  • Extreme
  • Evil
Difficulty
Mistakes
0/3
Time
00:00
Mistakes 0/3
Time: 00:00

To save your times and awards, please Log in or Sign up!

EXTREME SUDOKU

EASY SUDOKU

HARD SUDOKU

DAILY CHALLENGES

Daily Sudoku Challenges

Push yourself every day with fresh challenges!
Test your skills, climb the leaderboard, and come back tomorrow for a brand new shot at glory. 

Play Now!

MONTHLY BEST TIMES

This Months Best Times

Speed meets precision meets leaderboards.
The months fastest times are immortalized on the leaderboard. Think you’ve got what it takes?
View The Fastest Players

AWARDS

Sudoku Puzzle Awards

Earn recognition for
how you play.
From mastering different Sudoku levels to hitting milestones. Collect awards that showcase your skills. View Your Collection Here

WEEKLY TOURNAMENTS

Weekly Tournaments

Who’s been putting in the work This Week?
Weekly Tournaments rank the top players who’ve completed the most Daily Challenges. View The Leaderboard 

PRINTABLE PUZZLES

Free Printable Sudoku Games

Printable Sudoku Puzzles.
Grab your favorites and play anytime, no screens required. Great for travel, classrooms, or quiet time.
Download & Print Instantly

SUDOKU SOLVER

Sudoku Solver

Free Sudoku Solver Tool.
Stuck on a puzzle? Instantly solve any Sudoku with ease, just enter the numbers and let the solver do the rest.
Try the Solver Now

SUDOKU HISTORY

Sudoku History

Sudoku History.
Discover the origins of Sudoku, from its fascinating beginnings to its rise as a global puzzle phenomenon. Explore the History

SUDOKU RULES

Rules

Sudoku Rules.
New to Sudoku or need a refresher? Learn the simple rules that make Sudoku so addictive. Perfect for beginners and seasoned players. Learn How to Play

The Best Sudoku Books Out Now

Sudoku Genius Volume 2 Puzzle Book Extremely Hard Difficult
Sudoku Genius Volume 1 Puzzle Book Extremely Hard Difficult
Mastery of Sudoku Puzzles for Adults Teens Seniors
Sudoku Easy To Hard For Adults Teens and Seniors Book Cover

Medium Sudoku Puzzles Made Engaging

Medium Sudoku is ideal for players who are ready to move beyond the basics of the 9×9 puzzle grid. These puzzles offer a moderate challenge with fewer starting clues than easy levels, making the solving process more rewarding and thought-provoking.

With the right balance of support and difficulty, Medium Sudoku puzzles encourage you to apply logical strategies, strengthen problem-solving skills, and enjoy a satisfying mental workout. Each puzzle helps improve focus and concentration while keeping the experience fun and motivating.

Medium Sudoku Puzzles Free Online Web Games

About Sudoku

Sudoku is one of the world’s favorite logic puzzles, with its modern rise to fame beginning in Japan before spreading worldwide. The rules are straightforward, yet the challenge keeps players coming back, making it a puzzle that never loses its appeal.

You do not need advanced math skills to enjoy it. Sudoku relies on reasoning, focus, and persistence as you work to place numbers in the right spots. This process not only sharpens logical thinking but also helps improve clarity and mental agility.

For many, Sudoku provides a calming break from the day, while others treat it as a daily brain workout. Whether you are exploring beginner-friendly grids or aiming to refine your problem-solving skills, Sudoku delivers both enjoyment and long-term benefits for memory, focus, and clear thinking.

How to Play Medium Sudoku

Medium Sudoku uses the same classic rules as every other Sudoku puzzle, but with fewer starting clues than the easy level. The game is played on a 9×9 grid divided into nine smaller 3×3 boxes. Your objective is to fill in every square so that each row, each column, and each 3×3 box contains the numbers 1 through 9 without any repeats.

With less guidance at the start, Medium Sudoku challenges you to look more closely for patterns and apply logical strategies. It’s a great step up for players who already understand the basics and are ready for a more engaging and thought-provoking puzzle.

To stay on track, keep these rules in mind as you play:

  • Each row must contain the numbers 1 through 9 with no duplicates.

  • Each column must also include the numbers 1 through 9 without repeats.

  • Each 3×3 box needs the numbers 1 through 9 exactly once.

Once you are comfortable with these rules, Medium Sudoku becomes a rewarding way to strengthen your problem-solving skills and prepare for the jump to harder levels.

Medium Sudoku Tips for Solving with Confidence

Medium puzzles give fewer starting clues, so a clear plan helps you make steady progress. Try these friendly, proven strategies.

Tip 1: Begin with high-information areas
Scan rows, columns, and boxes that already hold many numbers. These spots reveal missing digits faster and often lead to quick singles.

Tip 2: Use pencil marks
Note all possible candidates in each empty cell. As you place numbers elsewhere, remove candidates to uncover certain placements.

Tip 3: Find hidden singles
If a digit can appear in only one cell within a row, column, or box, place it. Hidden singles are common at the medium level.

Tip 4: Spot pairs and triples
When two cells share the same two candidates in a unit, those digits are locked there. Remove them from other cells in that unit. The same idea works for three cells with three shared candidates.

Tip 5: Apply box line interactions
If a candidate in a box is confined to one row or one column, eliminate that candidate from the rest of that row or column outside the box.

Tip 6: Cycle your scans
Work through rows, columns, and boxes repeatedly. Each new placement can unlock fresh deductions on the next pass.

Tip 7: Avoid guessing
Medium Sudoku rewards logic. If you get stuck, tidy your pencil marks, recheck each unit for singles, pairs, and box line interactions, then scan again.

Practice these techniques daily and you will solve Medium Sudoku puzzles faster while building a solid foundation for hard and expert levels.

Start Enjoying Medium Sudoku Today!

Now that you have learned the rules and picked up some useful strategies, it is the perfect time to dive into Medium Sudoku puzzles. With fewer starting numbers than easy levels, these grids offer a rewarding balance of challenge and fun. They are ideal for players who want to sharpen their logic and take the next step in their Sudoku journey. Play free Medium Sudoku puzzles online today and enjoy hours of engaging, brain-boosting entertainment.

Sudoku Guides and Articles

Top 5 Hard Sudoku Puzzles to Try

Sudoku hard puzzles are a thrilling endeavor for puzzle enthusiasts. They present complex challenges that are not found in typical puzzles. These Sudoku variants require solvers to apply intricate logic and advanced problem-solving skills.

Continue Reading

How to Make a Sudoku Puzzle Manually (Step-by-Step + Expert Tips)

Creating your own Sudoku puzzle might sound intimidating, but it’s easier than you think. In this comprehensive guide, you’ll learn exactly how Sudoku puzzles are generated, how to make your own from scratch, and how to ensure it has only one solution. Whether you’re crafting a puzzle for fun or publication, this guide has you covered.

Continue Reading