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Medium
Hard
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Print a set of sudoku puzzles for free every day. Choose from different sudoku types and difficulty levels, include answers, and access solving steps and tutorials anytime. Enjoy the logic puzzle game!
Answer
Beginner
Easy
Medium
Hard
Expert
Print a set of sudoku puzzles for free every day. Choose from different sudoku types and difficulty levels, include answers, and access solving steps and tutorials anytime. Enjoy the logic puzzle game!
Medium 12×12 Sudoku - Sudoku Print
Print free medium 12×12 Sudoku puzzles daily. Requires solid logic and elimination skills. All puzzles generated in real-time — every set is unique. Export to PDF, Word, JPG, PNG, or SVG with optional answer sheets.
Paper Size：
A4
US Letter
Answer
Blank Grid
Pencil Marks
Difficulty：
Medium
Type：
12×12 Sudoku
Format：
PDF
Pages：
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Printable Sudoku Tips
Sudoku Rules Overview
All 9×9 sudoku types (Classic, Killer, Samurai) follow the same basic rule: each row, column, and 3×3 box must contain numbers 1–9 without repetition. 12×12 uses numbers 1–12 divided into 3×4 regions, and 16×16 uses 1–16 — same principle, but with more symbols to track and a higher difficulty ceiling.
Beginner's Guide
New to sudoku or looking for kid-friendly puzzles? Start with 4×4 mini sudoku — only 16 cells (four 2×2 boxes) using numbers 1–4. The rules are identical to larger grids but far easier to pick up. Select "Classic" type and "Beginner" difficulty on this page to get 4×4 puzzles, perfect for children and first-time players to quickly grasp the core logic of sudoku.
Printing Recommendations
We offer high-quality exports in PDF, Word, JPG, PNG, and SVG formats. PDF is optimized for direct browser printing — choose "Fit to Page" in your print settings for crisp grid lines. Use the layout selector to flexibly print 1, 2, or 5 puzzles per page to suit different needs.
Solving Tips
Grab a pencil and eraser before you start — you'll want to revise as you go. Fill in the obvious numbers first, then scan each row, column, and region to eliminate impossible candidates. Beginners should start with "Beginner" or "Easy" difficulty to build confidence before tackling puzzles with many empty cells. Turn on the "Answer" toggle to include a full solution page and check your progress. If you prefer solving online, try our intelligent hint feature — it walks you through the next move step by step.
Advanced & Strategy
As your skills grow, progress through the difficulty ladder: Beginner → Easy → Medium → Hard → Expert → Extreme. Experiment with different sudoku types (Killer, Samurai, 12×12, 16×16) while mastering techniques from pencil marks to advanced methods like Y-Wing. For more techniques, check out our Sudoku Tips & Strategy Guide. Beyond entertainment, these printable puzzles are excellent tools for sharpening logical thinking at any skill level.
Medium Sudoku Strategy
For medium puzzles, start using pencil marks (available with VIP) to note possible candidates in empty cells. When a cell has only one candidate left, that's your answer. Also look for numbers that can only go in one place within a 3×3 box, even if they could theoretically go elsewhere in the row.
The Power of Cross-Hatching
Cross-hatching is your most powerful tool at the Medium level. Focus on one number, draw imaginary lines through all its occurrences across rows and columns — where those lines intersect empty cells in a 3×3 box, that number CANNOT go there. The remaining empty cell is your answer. Repeat for each number 1-9.
Recognizing Hidden Singles
A hidden single is a number that can only go in one cell within a row, column, or box — but that cell also has other candidates. These are trickier to spot than naked singles (cells with only one candidate). Train your eye by asking: 'For this box, where can the number 5 go?' Work through each number systematically.
Frequently Asked Questions
How to print sudoku puzzles?
Select your desired difficulty, type, and layout (1, 2, or 5 puzzles per page), then click the "Print" button to generate printable sudoku puzzles. You can print a set of puzzles for free every day, formatted for A4 paper size.
What print formats are supported?
We support multiple export formats: PDF (default, A4 size), Word document, JPG image, PNG image, and SVG vector graphics, making it convenient for different usage scenarios.
Can I print sudoku with answers?
Yes! When you check the "Answer" option, the print page will include an additional answer page with complete solutions for all the puzzles on the page, making it easy to check your work.
What difficulty levels are available?
We offer 7 difficulty levels: Beginner, Easy, Medium, Hard, Expert, Extreme, and a comprehensive "All" option that includes all difficulties. Whether it's Classic Sudoku, Killer Sudoku, Samurai Sudoku, 12×12, or 16×16, all sudoku types support these 7 difficulty levels. You can choose the right level and type based on your skill.
Is sudoku printing free?
Yes, you can print a set of sudoku puzzles for free every day. No payment is required.
Are the printed sudoku puzzles the same every time?
No! All our sudoku puzzles are generated in real-time online. Every time you refresh the page or change the settings, a brand new set of puzzles is dynamically created. This means you'll get different puzzles each time, giving you unlimited variety — there's always something fresh to solve!
How many sudoku puzzles can I print per page?
You can choose from 3 layout options using the Layout selector above the puzzle preview: 1 puzzle per page (large print), 2 puzzles per page (stacked), or 5 puzzles per page (grid view). Pick the layout that best fits your reading comfort and paper usage.
What is the Blank Grid option?
The Blank Grid option, located next to the Answer toggle, generates empty sudoku grids without any pre-filled numbers. This is perfect for teachers who want to hand out blanks for classroom exercises, or for players who want to copy puzzles from elsewhere and solve them on printed sheets.
What is the Pencil Marks option?
The Pencil Marks option (VIP feature) displays small candidate numbers inside each empty cell, helping you quickly eliminate impossible options during solving. This is especially useful for Hard or Expert-level puzzles, significantly reducing reasoning difficulty.
How do I set the number of pages to print?
Use the Pages slider below the puzzle preview to set anywhere from 1 to 10 pages. The number of puzzles per page is determined by your Layout selection (1, 2, or 5), so total puzzles = layout × pages. For example, 5 per page × 2 pages = 10 puzzles total.
What does the Refresh Puzzles button do?
Clicking Refresh Puzzles instantly generates a completely new set of sudoku puzzles while keeping your current difficulty, type, layout, and page settings unchanged. If you're not happy with the current puzzles or want more variety, one click refreshes them all.
What solving techniques do I need for Medium puzzles?
Medium puzzles require basic elimination techniques: scanning rows/columns/boxes, identifying naked singles and hidden singles. You won't need advanced techniques like X-Wing or Swordfish at this level, but pencil marks (available with VIP) can be very helpful.
Are Medium puzzles good for daily practice?
Yes! Medium difficulty is the sweet spot for daily brain training. Challenging enough to engage your logic skills, but not so hard that you get stuck. Print a few pages and solve one each day to maintain mental sharpness.
What if I can't solve a Medium puzzle on paper?
Don't worry — it happens even to experienced players! Try re-scanning the grid with fresh eyes, or take a short break and come back. You can also print with the Answer page enabled to check one cell as a hint. For future puzzles, consider enabling the Pencil Marks feature (VIP) to track candidates more easily.
How many given numbers do Medium puzzles have compared to Easy?
Medium puzzles typically start with 25-29 given numbers (Easy has 30-35). The reduced clues mean you'll need to make more deductions per step, but the solving path is still designed to be logical and progressive without requiring advanced techniques like X-Wing.
Puzzle Data
Puzzle 1 — Medium
12 8 6 2 | 10 1 3 7 | . . 9 4 10 . . . | 12 11 . . | 3 1 . 6 . 4 11 3 | 6 9 8 5 | . 7 . 10 --------+---------+-------- . 3 . . | . . . 10 | . 5 . 8 5 . 2 10 | . . 11 . | . 12 7 1 8 . 4 . | 1 . . . | . 10 2 3 --------+---------+-------- 9 1 8 . | . . . 11 | . 3 . 5 11 2 3 . | . 10 . . | 1 8 . 7 7 . 5 . | 3 . . . | . . 4 . --------+---------+-------- 2 . 9 . | 7 8 12 1 | 10 4 3 . 3 . 10 7 | . . 9 6 | . . . 12 4 12 . . | 11 2 10 3 | 7 6 5 9
