Welcome to the Fun With Sudoku series — our largest and most popular Sudoku collection with over 366 puzzles! These medium-level 9x9 Sudoku puzzles are crafted to give regular solvers a satisfying challenge without being overwhelming. Each puzzle has a unique solution reachable through logical deduction alone. Whether you solve one a day or binge through several in a sitting, this series is the perfect companion for your daily brain workout.
Why Solve Fun With Sudoku Puzzles?
- Sharpen logical reasoning and systematic elimination skills at a satisfying medium difficulty
- Build concentration and sustained focus through longer solve sessions
- Develop working memory by tracking multiple row, column and box constraints simultaneously
- Enjoy a genuinely relaxing yet mentally stimulating daily puzzle habit
- Progress naturally toward harder collections like Daily Sudoku as your skills improve
- Each puzzle has a unique logical solution — no guessing ever required
Tips for Solving Medium Sudoku Puzzles
- Start with naked singles — scan every cell for positions where only one digit is possible before using any advanced technique.
- Use hidden singles — within each row, column and box, find digits that can only go in one remaining cell.
- Mark pencil candidates — medium puzzles almost always require candidate tracking. Writing small digits in each cell makes pairs and triples visible instantly.
- Look for naked pairs — two cells in the same unit sharing exactly the same two candidates allow you to eliminate those digits from all other cells in that unit.
- Apply pointing pairs — if a digit in a box is confined to one row or column, remove it from the rest of that row or column outside the box.
- If stuck, revisit the box with the most filled cells — the most constrained areas always yield the next breakthrough.
Fun With Sudoku Puzzles
Browse the full collection — use the page numbers to explore all puzzles:
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Frequently Asked Questions
What is the Fun With Sudoku series?
Fun With Sudoku is our flagship Sudoku collection featuring over 366 unique 9x9 Sudoku puzzles at medium difficulty. Each puzzle is handcrafted to provide a satisfying solving experience for regular players — challenging enough to require logical techniques beyond basic scanning, but never so hard that it becomes frustrating.
What difficulty level are these puzzles?
These are medium-level puzzles. They go beyond basic single-cell logic and typically require candidate tracking, naked pairs and pointing pairs to solve. If you are comfortable with easy Sudoku and ready for a step up, this is the perfect collection. For tougher challenges, try our Daily Sudoku collection.
Are these standard 9x9 Sudoku puzzles?
Yes. All Fun With Sudoku puzzles use the classic 9x9 grid with standard rules — fill every row, column and 3x3 box with the digits 1 to 9, each exactly once. No extra constraints or variant rules are applied. If you enjoy variants, explore our Sudoku Variants collection.
I am a complete beginner. Should I start here?
If you are completely new to Sudoku, we recommend starting with our Mini Sudoku collection, which features easy 6x6 puzzles designed for beginners. Once you are comfortable with the basic logic, return here for a more satisfying medium-level challenge.
Do these puzzles have unique solutions?
Yes. Every puzzle in the Fun With Sudoku series has exactly one solution reachable through logical deduction. No guessing is ever required. A well-constructed Sudoku should always be solvable by logic alone, and every puzzle in this collection meets that standard.
Are solutions provided?
Most puzzles include a complete solution. Click the View Answer button on the puzzle page to reveal it. For some puzzles the solution is provided in a linked YouTube video within the post.
How often are new puzzles added?
New Sudoku puzzles are added regularly. Visit our Daily Challenge page for a fresh brain teaser every day, or bookmark this page to check back for the latest Fun With Sudoku puzzles.
Ready for your daily Sudoku fix? A new challenge every day -- try today's Daily Challenge!
