Built for puzzle creators, publishers, and educators

Turn one idea into a complete Sudoku book.

Create carefully verified puzzles, make every page look exactly the way you want, and download your full collection—without complicated software or repetitive work.

Start Creating Free See How It Works
  • No installation
  • Every solution verified
  • Start without a card
sudoku.kdpika.com/webapp
STEP 1Choose Your Puzzles
Add Group
01My Puzzle CollectionSaved
STEP 2Create Your PuzzlesEach puzzle is checked carefully.
Create My Puzzles
Unique solution independently verified
Download ready 1,000 files organized
4×4 to 25×25Six flexible grid sizes
Verified answersOne clear solution per puzzle
Your visual styleColors, lines, fonts, and symbols
Organized deliveryPNG images and ready ZIP folders

Made for your real workflow

Spend your time creating the book—not building every puzzle by hand.

Whether you publish puzzle books, create classroom materials, or sell printable products, the repetitive work is handled for you.

Book Publishers

Build consistent puzzle and answer collections for print books, activity books, and publishing projects.

Digital Sellers

Create polished downloadable products for your shop without repeating the same design work for every file.

Teachers & Educators

Prepare age-appropriate puzzle sets, from simple 4×4 boards to challenging advanced collections.

Creative Studios

Control the visual identity of every grid for themed collections, client work, and branded content.

Everything in one calm workspace

Powerful enough for large collections. Simple enough for your first book.

No technical terms, no hidden setup, and no confusing chain of tools. Choose, create, style, and download.

Build books your way

Create separate puzzle groups with their own size, difficulty, quantity, and pattern. Drag them into the exact order you want.

  • Multiple books and puzzle groups
  • From a few puzzles to large collections
  • Standard or balanced rotational patterns

Confidence in every puzzle

Every saved puzzle is checked independently to confirm it has exactly one solution and matches its answer.

Solution verified

See the result before you create

The live preview follows your selected group and design choices, with a larger view whenever you need it.

PuzzleAnswerBoth

Make every grid feel like yours

Change backgrounds, borders, cell lines, clue colors, answer colors, spacing, alignment, and number size.

Thousands of font choices

Search the Google Fonts library, save favorites, or safely add your own font file for a distinctive publishing style.

MontserratPlayfair DisplayLexend

One click. One organized download.

Your images are prepared securely on the server and placed into clear Puzzle and Answer folders. Large collections do not depend on your browser’s memory.

  • PNG up to 4096 × 4096 px
  • Puzzles, answers, or both
  • Automatic filenames and numbering

A simple four-step flow

Your next collection can start in minutes.

The app always shows the next clear action, so even a first-time computer user can move forward with confidence.

  1. 1

    Choose

    Set the number of puzzles, grid size, difficulty, and layout for each group.

  2. 2

    Create

    Let the generator build and verify every puzzle while your progress is safely saved.

  3. 3

    Style

    Choose the colors, fonts, symbols, spacing, and image settings that match your project.

  4. 4

    Download

    Receive individual images or one organized ZIP containing your puzzles and answers.

Ready to see it for yourself?Open the studio and create your first puzzle group.
Open the App

Designed for scale without the stress

From one preview to thousands of polished files.

Start small, refine the look, then create a full production batch with the same settings. Your work remains organized by book and puzzle group.

  • Continue long jobs without losing finished work
  • Return later and continue preparing downloads
  • Keep puzzle files paired with the correct answers
  • Reorder books and groups whenever your plan changes
Publishing Collection.zipReady
Files prepared1,000 / 1,000
Puzzles500 PNG filesAnswers500 PNG files
Your download is readyEverything is named, numbered, and organized.

Simple plans that grow with your publishing

Start free. Upgrade when your collection grows.

These are estimated early-access plans for the future SaaS release. Pricing and limits can be adjusted before subscriptions launch.

Starter

Explore the workflow and build your first small collection.

€0/ month

Free while you get started

Start Free
  • Up to 30 puzzles each month
  • Classic 9×9 puzzles
  • Essential colors and styles
  • Verified puzzle and answer files
  • Standard PNG downloads
Most Popular

Creator Pro

For active creators publishing new products every month.

€12/ month

Pay monthly · cancel anytime

Join Creator Early Access
  • Up to 2,500 puzzles each month
  • Every supported size and difficulty
  • Full design and symbol controls
  • Google Fonts and custom fonts
  • High-resolution PNG and organized ZIP
  • Multiple books and puzzle groups

Publisher

For high-volume publishing, shops, and professional studios.

€29/ month

Pay monthly · cancel anytime

Join Publisher Early Access
  • Up to 12,000 puzzles each month
  • Everything in Creator Pro
  • Larger production batches
  • More saved books and collections
  • Commercial publishing workflow
  • Priority email support

Preview pricing only. No paid subscription is created on this page. Early-access requests are handled by email until the billing system is ready.

Questions, answered simply

Everything you need to feel confident before you begin.

Still have a question? Send us a message and we will help.

hi@kdpika.com
Do I need to install anything?

No. The publishing studio opens in your browser. You can create, style, and download your puzzle collection online.

How do I know each puzzle has one solution?

Every puzzle is checked independently before it is saved. The app confirms that there is exactly one solution and that the stored answer matches it.

Can I create puzzles for printed books and digital products?

Yes. The app produces high-resolution PNG images and organized ZIP folders that fit book, worksheet, printable, and digital publishing workflows.

Will large downloads slow down my browser?

The server prepares large image collections and ZIP files in manageable steps. Your browser does not need to hold the entire full-resolution collection in memory.

Can I use my own font and colors?

Yes. Choose colors, line widths, number styles, Google Fonts, or upload a supported font file through the protected font uploader.

Are the subscription plans available now?

The app is available for testing now. The monthly and yearly packages shown above are proposed early-access plans and may be refined before paid subscriptions launch.

Your next Sudoku collection starts here

Less repetitive work. More finished books.

Open the studio, choose your first puzzle group, and see how simple professional puzzle creation can feel.

Start Creating Free No card required