Update Log

• The all-new "Sudoku Maker" page is now live: supporting three board types---4×4, 9×9, and Samurai Sudoku---design your very own Sudoku puzzle from scratch.
• The creator has built-in real-time conflict detection, unique solution verification, and difficulty rating, and supports pencil mode, undo/redo, and auto-save.
• Supports one-click export to PNG / SVG / JPG / PDF, provides A4 card layout, and can generate shareable links.
• Samurai Sudoku adds sub-grid cell selector and optimizes board rendering performance.
• Added a "Contact Us" page: footer entry updated, making feedback and business inquiries clearer.
• The homepage has added content sections such as difficulty paths, platform features, beginner guides, and FAQs, making it easier for newcomers to get started.

• The solution page has a new independent scrollbar, and the availability status of the "View Solution Steps" button is more reasonable.
• The main text and images on the PC encyclopedia and rules pages now load together, making the pages lighter and faster.
• Added frequently used source cards and sharing entry to the print page.
• Fixed the issue where pencil highlights remained on the board after switching game modes.
• Fix the issue where the user logout button exceeds the display boundary and some text shows double colons.
• Support automatic fallback to USD settlement when the local currency is unavailable.

• Added a "Next Level" button to the game completion panel, allowing automatic entry into higher difficulty after completion.
• Added Marathi, Telugu, and Tagalog, and unified the site name to Sudoku100 across the entire site.
• PDF exported text is selectable, no longer just an image.
• Fix the issue where the page refreshes after closing the game completion popup.
• Fix the conflict between the input box keyboard events and the pause pop-up.

• Game progress and daily Sudoku records support cloud sync, making it smoother to pick up where you left off across devices.
• Optimize the logic for obtaining membership benefits, and display benefit status more accurately.

• Printing: Added SVG vector export, remaining clear even when enlarged for printing.
• Optimize the generation logic of challenge sharing links to avoid duplicate invalid links.
• Fixed the error caused by missing record identifiers in some match synchronization data.
• Fix the data calibration issue for Daily Sudoku

• Added AI integration page: Through MCP Server and Skill Package, large models such as ChatGPT, Claude, and Cursor can directly generate and call Sudoku puzzles (one-click installation via npx / npm, no key required)
• Added a user feedback entry point and rating popup on the new page, making it faster to send feedback directly.
• Added paper size selection (A4 / US Letter) to the print page.
• Image generation supports 4×4 format
• Some large images are converted to WebP, making the first screen load faster.

• The Account Center supports viewing and modifying personal profiles, with email addresses displayed in a masked format.
• Add login verification for member content; when not logged in, guide the user to log in first.
• Classic Sudoku puzzles of all difficulty levels can be printed directly, and a batch download entry is provided.
• Pricing packages load in real time, and currency indicators are clearer.
• Optimize the homepage and blog post list display.
• Improve accessibility experience for page footer accordions, print page input boxes, etc.

• New Challenge Mode: After completing a round, a personalized challenge link is automatically generated. Friends can click to open it and attempt the same puzzle.
• Compete on time with real-time win/loss display, view the number of participants and link expiration, and share results with one click.
• Country names on the battle page are automatically localized based on the interface language, and ticket validation is more complete.
• Free trial adjusted to 3 days, pricing changed to average daily display, see the cost at a glance.

• Added "Play Again" to the game completion panel.
• Added a "Question / Answer" view toggle to the print page.
• Optimize the display and sharing process of the update log page.
• Improvements to multilingual content such as battle ranking rules and header badges.
• Fix the operation exception caused by popup event bubbling.

Speed and experience leap

• The page loading speed has significantly improved, with the first screen loading almost instantly.
• The mobile and desktop experiences are fully unified, eliminating any sense of fragmentation.
• Full site stability enhanced, crashes and lag significantly reduced.

New Features and Pages

• PayPal payment system is fully launched, supporting credit card and PayPal balance payments.
• Independent pricing page is now live, with membership benefits clearly displayed.
• Cookie Privacy Pop-up Launched, Data Usage Transparent and Open
• Developer API documentation page is now live.
• Print function fully upgraded: supports filtering by difficulty, categorizing by question type, and batch printing with pagination.
• Puzzle details page launched: Each Sudoku puzzle now has its own dedicated page and unique sharing link.

• All site images have been upgraded to WebP format, significantly improving loading speed.
• Cache strategy fully optimized; revisiting opens almost instantly.

• AI Smart Problem Solver Launched:Manually input or take a photo to recognize Sudoku puzzles, and AI will instantly provide answers and solving steps.
• Sudoku Competition Mode Now Available:Time-limited challenge: Compete with players worldwide in speed and accuracy.
• Daily Sudoku standalone page is now live: One carefully selected question daily, complete it to clock in.
• Sudoku Battle standalone page is now live.: Real-time Battle Experience Fully Upgraded
• New Challenge Mode Now Available:Time-limited challenges, combo challenges, no-hint challenges, and various other scenarios, constantly pushing boundaries.
• Enhanced sharing function: The game completion page supports one-click sharing to 10+ mainstream social platforms.
• Settings Panel Enhanced: More personalized options for a more tailored gaming experience.

• Sudoku Encyclopedia is Now Online: Systematically learn the history, rules, variants, and advanced techniques of Sudoku.
• Best Sudoku Website Recommendation Now Live: Curated selection of high-quality Sudoku resources from around the world
• Added update log functionality.
• Optimized the settings page layout and added more personalization options.
• Fixed known issues and improved app stability.
• Improve mobile adaptation

• Added privacy policy page to enhance privacy protection.
• Add service agreement to standardize terms of use
• Optimize mobile navigation bar
• Improve the sound system
• Fixed several interface display issues.

• Sudoku100 officially launched
• Complete Sudoku game features: note, hint, undo, and other core operations.
• 6 difficulty levels: Beginner, Easy, Medium, Hard, Expert, Extreme
• Killer Sudoku, Samurai Sudoku, 12×12 Sudoku, and 16×16 Sudoku are now available simultaneously.
• One-tap login with Google account
• User data cloud synchronization
• Supports 39 languages
• Open API, developers can connect directly.
• Fully compatible with both mobile and desktop

I've had many bad experiences with Sudoku games—annoying ad pop-ups, inconsistent difficulty levels, and no way to play against friends. As a hardcore Sudoku enthusiast, I've had enough. Maybe I should just make one myself~