Printable generator
Download Free Medium Sudoku PDF
Create and download free printable Sudoku puzzles in PDF format. Generate a free printable medium sudoku PDF for regular puzzle enthusiasts, daily solvers, intermediate skill builders, puzzle club members, commuter solvers. Read the full guide to medium sudoku.
Ready-made
Download Without Configuring Anything
Pre-built PDFs for the most common setups. For any other combination, use the generator above.
When to use
When to Choose Medium Sudoku PDFs
Use Medium Sudoku for regular daily practice, puzzle enthusiasts seeking a balanced challenge, or when you want to develop intermediate techniques like hidden singles and naked pairs.
How to solve
How to Solve Medium Sudoku — Quick Walkthrough
After basic scanning, look for hidden singles. Pick a row, column, or box. For each digit 1–9 that is still missing from that unit, list the cells in the unit where that digit could go (not already eliminated by row/column/box constraints). If a digit has exactly one valid cell, place it.
Common mistakes
Common Mistakes With Medium Sudoku
A common mistake is rushing through medium puzzles without scanning thoroughly. Hidden singles often go unnoticed if you fixate on a single row or column instead of scanning the full grid systematically.
Pro tips
Pro Tips for Printing & Solving Medium Sudoku
- Master the hidden single before attempting harder Medium puzzles. A hidden single occurs when only one cell in a row, column, or box can hold a particular digit, even though other digits could occupy that cell.
- Use the box-line reduction technique. If a digit is restricted to one row or column within a 3×3 box, eliminate that digit from the rest of that row or column.
- Light pencil marks are useful for tricky Medium cells, but most cells should resolve through scanning. Reserve notation for the final 10–15 cells when scanning stops yielding new placements.
- If stuck, swap which axis you scan. Solvers usually fixate on rows or columns — switching focus to box-by-box scanning often reveals hidden singles the eye has skipped.
Benefits
Why Print Medium Sudoku PDFs?
Medium Sudoku develops the hidden-single and pointing-pair pattern recognition that underpins all advanced Sudoku. Daily Medium puzzles build the deductive habit cited in research on logic-puzzle benefits for executive function.
Paper size
Medium Sudoku Sudoku in Your Paper Size
Other difficulties
Try a Different Difficulty
If medium sudoku is not the right challenge level, try: Easy Sudoku · Hard Sudoku · Expert Sudoku · Classic Sudoku · Mini Sudoku.
Or browse all sudoku formats.
Compare
How Medium Sudoku Compares
Medium Sudoku vs Easy Sudoku: Read the comparison
Medium Sudoku vs Hard Sudoku: Read the comparison
FAQ
Medium Sudoku PDF — Frequently Asked Questions
How long does a Medium Sudoku puzzle take?
Medium Sudoku takes most solvers 15 to 25 minutes. The required techniques (hidden singles, naked pairs, pointing pairs) slow the solve compared to Easy puzzles but remain accessible without note-taking for most cells.
What techniques do I need for Medium Sudoku?
Medium Sudoku requires hidden singles (cells where only one digit can fit despite other candidates elsewhere), naked pairs (two cells in a unit that share exactly two candidates), and pointing pairs (a candidate restricted to one row or column within a box).
Should I write candidate numbers on the grid?
Light pencil notes for candidates are useful in Medium Sudoku for tricky cells, but most cells should be solvable through scanning alone. If you are notating every cell, you may be over-thinking — try a fresh scan of the row, column, and box first.
Why does my Medium Sudoku puzzle feel impossible?
If a Medium puzzle feels stuck, you are usually missing a hidden single rather than needing an advanced technique. Scan systematically: row by row, column by column, then box by box. Hidden singles often hide where you have already looked.
Is Medium Sudoku suitable for daily practice?
Yes. Medium Sudoku is the most popular difficulty for daily puzzle habits — it provides genuine challenge while remaining achievable in a single sitting. Newspaper Sudoku is most often Medium difficulty.