What does Sudoku Generator do?

Simple answer: Sudoku Generator creates original, print-ready Sudoku puzzles directly inside your InDesign documents.
Instead of searching for puzzles online, copying from books, or manually typesetting grids, this plugin generates fresh, unique puzzles instantly.
Why publishers need this
The old way: Adding Sudoku puzzles to publications typically means:
- Searching online for free puzzles (often low quality or copyright issues)
- Scanning puzzles from books (copyright problems)
- Manually typing numbers into grids (time-consuming and error-prone)
- Struggling with consistent formatting across multiple puzzles
- Worrying about duplicate puzzles in different issues
The new way: Click one button and get unlimited, original puzzles formatted exactly how you want them.
Perfect for these publications
- Newspapers – Daily or weekly puzzle sections
- Magazines – Regular puzzle pages or special puzzle issues
- Newsletters – Community publications with puzzle content
- Puzzle books – Dedicated Sudoku collections
- Activity booklets – Educational or entertainment publications
- Corporate publications – Employee newsletters with brain teasers
What you get
Unlimited original puzzles
- Brand new puzzles every time you generate
- Royalty-free – You own the copyright to generated puzzles
- No duplicates – Each puzzle is mathematically unique
- Professional quality – Properly constructed with single solutions
Two puzzle sizes
- Classic 9×9 – Traditional Sudoku puzzles
- Beginner 6×6 – Easier puzzles for younger audiences or beginners
Complete design control
- Custom grid styling – Fonts, colors, line weights, spacing
- Flexible layout – Position puzzles anywhere on your page
- Branding integration – Add logos, headers, instructions as needed
- Consistent formatting – Templates ensure uniform appearance
Template-based workflow
- Example templates included – Ready-to-use layouts for common scenarios
- Placeholder system – Mark where puzzles should appear
- Automatic replacement – One click replaces all placeholders
- Solution generation – Automatically creates answer pages
How it works
Simple 3-step process
- Open a template – Use provided examples or create your own layout
- Generate puzzles – Click “API → Generate Sudoku Puzzles” and done!
Template examples that you can easily customize are included.
Real-world scenarios
Weekly newspaper: Place one placeholder in your puzzle section template. Every week, generate a fresh puzzle for that spot. No more hunting for content or worrying about repeats.
Puzzle magazine: Create a 100-page booklet template with placeholders. Generate all puzzles at once, then print immediately. Each issue will have completely different puzzles.
Corporate newsletter: Add a small puzzle to boost engagement. Generate monthly without any ongoing effort or content sourcing.
System requirements
- InDesign 2025 or newer
- Windows or Mac
- APID ToolAssistant (free supporting plugin)
- PluginInstaller (free tool for installation and licensing)
Pricing
- 20-day free trial – Generate unlimited puzzles, full functionality
- $149 per computer per year (excluding tax)
- Annual renewal required
- Purchase through PluginInstaller
Installation (current manual process)
Step 1: Download required files
- Sudoku Generator
https://www.rorohiko.com/downloads/LightningBrainSudoku.1.1.17.zip - PluginInstaller
https://PluginInstaller.com - APID ToolAssistant
Pick the correct link, depending on your computer and version of InDesign:- Mac, InDesign 2025
https://www.rorohiko.com/downloads/apid/APIDToolAssistant_Mac_2025.1.0.78.zip - Mac, InDesign 2026
https://www.rorohiko.com/downloads/apid/APIDToolAssistant_Mac_2026.1.0.78.zip - Windows, InDesign 2025
https://www.rorohiko.com/downloads/apid/APIDToolAssistant_Win_2025.1.0.78.zip - Windows, InDesign 2026
https://www.rorohiko.com/downloads/apid/APIDToolAssistant_Win_2026.1.0.78.zip
- Mac, InDesign 2025
Step 2: Install PluginInstaller
In case you had not already installed it before:
- Download PluginInstaller (free tool for script management)
- Extract and place in convenient location (Applications, Desktop, etc.)
- Run PluginInstaller – it configures itself automatically
- If you don’t have an account yet, create one. WRITE DOWN YOUR UNLOCK CODE.
- After relaunching PluginInstaller, always check the Accounts window and verify your account is unlocked! If it is not, nothing will work.
Step 3: Install APID ToolAssistant
In case you had not already installed it before:
- Close InDesign completely
- Find your InDesign Plug-Ins folder (usually in the InDesign application folder)
- Create a Rorohiko subfolder inside Plug-Ins
- Extract APID ToolAssistant files to the Rorohiko folder
Step 4: Install Sudoku Generator
- Extract the Sudoku Generator download
- Copy Sudoku plugin items to the Rorohiko folder.
- Restart InDesign
Below some screenshots similar to how your Rorohiko folder should look:

Step 4: Test installation
- Open one of the example booklets from the Sudoku download
- Go to API → Generate Sudoku Puzzles
- Click OK to generate puzzles
- Verify puzzles appear in placeholders
Step 5: Purchase license (after trial)
- Open PluginInstaller. Verify your account is unlocked.
- Use the Store window in PluginInstaller, browse the catalog and find Sudoku Generator for InDesign. Click the link in the Store window to add the bookmark into the Installing and Ordering window.
- Purchase license for $149/year
- Activation happens automatically
Getting started tips
Start with examples: Open the provided example files to see how templates work before creating your own.
Understand placeholders: The plugin looks for special placeholder frames and replaces them with generated puzzles.
Test layouts: Generate puzzles multiple times to see how they look with different number patterns.
Plan solutions: Decide if you want solutions on the same page, separate pages, or at the end of your document.
There is an online manual here: https://www.rorohiko.com/wordpress/manuals/sudokugenerator-manual/
Design flexibility
Grid customization:
- Choose fonts for numbers
- Set line weights and colors
- Adjust cell spacing and sizing
- Control overall puzzle dimensions
Layout integration:
- Puzzles fit your existing design style
- Add instructions, titles, or branding around puzzles
- Position multiple puzzles per page
- Create themed puzzle sections
Who should use Sudoku Generator
- Publishers – Newspapers, magazines, and newsletters needing regular puzzle content
- Content creators – Puzzle book authors and activity book designers
- Marketing teams – Adding engaging content to corporate publications
- Educators – Creating educational materials with brain training exercises
- Print shops – Offering puzzle book services to clients
- Anyone who regularly needs original Sudoku content
Important notes
Copyright ownership: You own all puzzles generated with this tool – no royalty payments or attribution required.
Quality assurance: Each puzzle is mathematically verified to have exactly one solution.
Template compatibility: Use templates designed for your InDesign version (provided examples match your software).
Ready to generate puzzles? Download the files above and start your free 20-day trial today!
