Sudoku — 9x9 Medium

Create Printable 9x9 Medium Sudoku — Fewer Clues, a Little Pairs Reasoning, More Satisfaction

Quickly create free printable 9x9 Medium Sudoku puzzles, the natural step up from Easy. Medium puzzles carry a few fewer starting clues, which means scanning alone will not always finish the grid — a touch of pairs reasoning enters the mix.

Generate Medium Sudoku in A4 or US Letter PDF format for classrooms, homes, and travel. Six puzzles per page with an optional solutions key, ready for the printer.

Medium difficulty is where Sudoku starts to feel like proper deduction. Each move you make helps eliminate candidates elsewhere, and pencil marks earn their keep.

Why use this 9x9 Medium Sudoku generator?

Medium puzzles are the most popular tier in Sudoku collections, but printed books quickly run short. This generator provides an endless stream. Use it for:

• weekday logic warm-ups
• classroom enrichment tasks
• travel puzzles that take a pleasant 10-20 minutes
• bridging from Easy to Hard without a sudden jump
• shared solving sessions with older children

Because every print is a fresh set, you never have to worry about seeing the same grid twice.

What you can customise

• Puzzle count: six 9x9 Medium Sudoku per page in a 2x3 layout
• Solutions page: add a separate page with every completed grid
• Paper size: download as A4 or US Letter PDF

Six-per-page is the sweet spot for Medium: enough puzzles to fill a session, enough space to jot pencil marks.

Notes and limitations

• Medium puzzles carry around 30-35 starting clues.
• Every row, column, and 3x3 box contains each digit 1-9 once.
• Estimated solving time: 10-20 minutes per puzzle for a confident solver.
• Pencil marks are helpful but not usually essential — pairs and triples reasoning is the main tactical step up from Easy.

Who 9x9 Medium Sudoku is for

Beginners

Once you can comfortably complete an Easy sheet with no guessing, Medium is the right next step. Expect one or two trickier deductions per grid.

Puzzle enthusiasts

Medium puzzles are a good pace for a commute or a lunch break. A single grid in 10-15 minutes keeps the mind warm without eating your whole afternoon.

Classroom teachers

Year 6 and Key Stage 3 classes handle Medium well. Hand out a sheet for a reasoning lesson, or print a class set as a rainy-break activity.

Parents

Parents love Medium for its perfect balance — challenging enough to feel rewarding, brief enough to finish between other tasks.

Difficulty context

Medium sits between Easy and Hard:

• 9x9 Easy — ~36-45 clues, 5-12 minutes, scanning only
• 9x9 Medium — ~30-35 clues, 10-20 minutes, pairs reasoning
• 9x9 Hard — ~27-30 clues, 20-40 minutes, locked candidates and X-wings
• 9x9 Expert — ~17-23 clues, 40-90 minutes, chains and wings

How to use the tool

1. Keep the puzzle count at six per page or adjust if needed.
2. Turn the solutions page on or off.
3. Select your paper size: A4 or US Letter.
4. Click Generate.
5. Preview the sheet.
6. Download the PDF.

Worked example

For a Year 7 reasoning lesson, generate six 9x9 Medium puzzles on A4 with solutions on. Learners can attempt one each during the lesson; the answer page provides quick verification.

For a commute puzzle, print the same sheet on US Letter, fold it into a book, and solve one puzzle per day on the train.

Methodology

The engine starts with a valid 9x9 solution and removes cells while ensuring the remaining puzzle can still be solved using naked singles, hidden singles, and a small dose of pairs or triples reasoning. That keeps each grid firmly in Medium territory without pushing into Hard. The optional solution page reprints every grid fully filled.

Helpful preset ideas

• 6 puzzles on A4 with solutions for classroom use
• 6 puzzles on US Letter for American home use
• Solutions off for a commute booklet
• Medium as a standing weekly sheet for puzzle clubs

Tips for solving a 9x9 Medium Sudoku

• Scan every digit 1-9 once before reaching for pencil marks.
• Look for rows or columns with seven known cells — the last two are often a pair.
• Mark candidate pairs in the margin when you spot them.
• Do not guess. If you cannot justify a move, write candidate numbers instead.

Designed for A4 and US Letter Printing

The 9x9 Medium Sudoku worksheet supports both A4 and US Letter. Grid sizes are tuned to remain readable and leave corner-mark space on either paper, which helps at the level where pencil marks first become useful. Whether you print at home, at school, or at work, the sheet looks consistent and margins stay safely inside the printable area.

Making Medium part of a weekly routine

Medium Sudoku is the ideal tier for a weekly puzzle habit. Sit down with a page of six on a Saturday morning, or print a sheet to carry with you on a weekly commute. The pace — around a dozen minutes per grid — fits neatly into most routines without demanding the serious time investment that Hard and Expert require, which makes Medium the backbone of many long-term solvers' practice.

Related logic puzzle tools

You may also enjoy these related printable logic puzzles:

• Sudoku — 9x9 Easy
• Sudoku — 9x9 Hard
• Sudoku Generator
• Number Pyramid Generator