Effective July 21, 2026Scope and purpose
This policy applies to SudokuGG guides, game instructions, feature descriptions and factual statements about the site. We write for people actively solving Sudoku and related number-logic puzzles. Search visibility can help readers find the material, but it does not replace usefulness, accuracy or a clear answer.
We do not publish unrelated trending topics, copy competitor text or create large numbers of pages that differ only by a keyword. Difficulty pages must describe a genuinely different solving experience, and technique guides must explain a distinct logical pattern.
How guides are prepared
Start with the player’s task
Each guide begins with a specific question: how to identify a single, how a locked candidate produces an elimination, how printable sheets work or why a move is invalid. The opening summary answers that question directly before the article adds examples and practice advice.
Check against standard rules
Technique explanations are checked against the three constraints of standard 9×9 Sudoku: no repeated digit in a row, column or 3×3 box. Variant rules, such as Kalkudoku cages, are labelled separately so they are not confused with Classic Sudoku.
Test site-specific claims
Statements about controls, difficulty options, printing, daily puzzles and saved progress are compared with the current working module. A guide should not promise an account, cloud sync, download format or game mode that the site does not provide.
Use tools responsibly
Editing, coding and drafting tools may assist development. Publication decisions remain based on whether the final page is accurate, readable, original and consistent with the live product. Automated output is not treated as evidence by itself.
Puzzle generation and checking
Classic Sudoku uses valid solved-grid transformations and difficulty-specific clue templates. Transformations preserve row, column and box validity. Daily Sudoku derives a repeatable transformation from the calendar date so the same date produces the same starting grid. Printable Sudoku and Kalkudoku use their own generation and validation logic.
Interface tests check that givens cannot be edited, correct values complete the board, notes and undo behave as described, and mobile controls remain reachable. A software check cannot guarantee that every player will agree with a difficulty label, so difficulty descriptions are presented as expectations within SudokuGG rather than universal ratings.
Authorship and transparency
Articles are attributed to the SudokuGG editorial team. This represents the site’s product and content review process; it is not a claim of a professional certification or competitive Sudoku title. Where an external source is useful for a historical or technical claim, the page should link to the source directly.
Publication and review dates appear on substantial guides. Dates are changed only when the page or relevant product has been meaningfully reviewed, not merely to make old material appear fresh.
Corrections
If a rule explanation, broken link or feature description is wrong, readers can report it through the contact page. A useful report includes the page address, quoted sentence or interface element, and an explanation of the problem. Confirmed errors are corrected in the source and the review date is updated when the change is meaningful.
We distinguish preference from factual error. Players may reasonably disagree about visual style or perceived difficulty; those reports inform product decisions but do not automatically make a statement incorrect.
Advertising and editorial independence
SudokuGG may use advertising to support hosting and continued development. Advertisers do not choose puzzle solutions, technique explanations or editorial conclusions. Ads should be visually distinguishable from navigation and game controls, and they should not require a player to click an advertisement to continue solving.
For information about browser storage, cookies and future advertising services, read the Privacy Policy and Cookie Policy.