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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!
Extreme 12×12 Sudoku - Sudoku Print
Print free extreme 12×12 Sudoku puzzles daily. The hardest puzzles we offer — only for the elite. 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：
Extreme
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.
Extreme Sudoku — The Ultimate Challenge
Extreme puzzles are our apex difficulty. At this level, every cell matters — a single misstep can cascade into an unsolvable position. Use a systematic approach: pencil-mark ALL candidates first, then apply advanced techniques like AIC and ALS. Consider printing with Pencil Marks (VIP feature) enabled to track candidates directly on paper. These puzzles reward patience and deep logical reasoning.
Systematic Solving: Plan Before You Mark
Before making your first move on an Extreme puzzle, spend 5-10 minutes studying the grid. Identify which numbers appear most frequently and which regions are the most constrained. Plan your attack order — tackle the most promising areas first, where cross-hatching or locked candidates can yield quick wins. This upfront investment pays off enormously as the puzzle progresses.
Mental Stamina and Breaks for Extreme Puzzles
Extreme puzzles can take 60+ minutes and demand sustained concentration. Work in focused 20-minute blocks with short breaks in between — this prevents fatigue-induced errors. Print two copies: one for your working notes with all pencil marks and trial deductions, and a clean copy for your final solution. If you feel stuck, step away for 10 minutes; returning with fresh eyes often reveals patterns you previously missed.
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 makes Extreme sudoku different from Expert?
Extreme puzzles are our absolute hardest — they typically have 17-18 given numbers (the mathematical minimum for a valid sudoku) and may require techniques like Forcing Chains, Alternating Inference Chains (AIC), Almost Locked Sets (ALS), and Nishio. These puzzles can take 45-90+ minutes even for seasoned masters.
Are Extreme printable sudoku puzzles always solvable logically?
Yes! Every Extreme puzzle we generate is guaranteed to have a unique solution and can be solved without guessing. However, the required solving paths are extremely long and complex. We recommend printing with the Answer page enabled so you can verify your progress without frustration.
How often can someone solve an Extreme puzzle without any hints or answer checking?
Even among expert solvers, completing an Extreme puzzle without any assistance is a significant achievement. Most players use the Answer page to verify a few cells mid-solve, especially during long forcing chains. Don't feel discouraged — these puzzles are designed to push the boundaries of logical deduction.
What techniques separate Extreme solvers from Expert solvers?
The key difference is mastering pattern-based techniques: Alternating Inference Chains (AIC), Almost Locked Sets (ALS), Sue-de-Coq, and grouped X-cycles. While Expert solvers may recognize these patterns occasionally, Extreme solvers apply them systematically across every puzzle. Regular practice with printed Extreme puzzles is the best way to internalize these advanced methods.
Puzzle Data
Puzzle 1 — Extreme
5 . 9 11 | 4 8 . 2 | . . . 10 . . . . | . 6 . . | . . . . . 8 6 . | . . . 1 | . . . . --------+---------+-------- . . . 7 | 10 1 . . | . 4 . 6 2 10 . . | 9 5 . . | 1 12 . . . . . 12 | . . . . | 10 11 5 9 --------+---------+-------- . . . 5 | . . . . | 11 1 12 4 6 11 . . | 8 10 . . | 5 7 . . . . . 9 | 12 7 . . | . 10 . 3 --------+---------+-------- . 3 8 . | . . . 10 | . . . . . . . . | . 4 . . | . . . . 12 . 11 2 | 5 9 . 3 | . . . 1
