About Legen Sudoku
A small Sudoku product with explicit responsibility.
Legen Sudoku is maintained as an independent, free, static-first website. The playable board, published catalog, method pages, data assets, and release evidence belong to one versioned project.
Product responsibility
The maintainer is responsible for the site implementation, publication decisions, corrections, and release records. No fictional expert panel, medical claim, rating, or user study is presented.
What engine verification means
The engine checks puzzle format and uniqueness, then accepts only logic steps that pass the corresponding verifier. The engine is a tool and is not listed as an author or human reviewer.
Privacy by default
The current public site has no account, advertising profile, third-party analytics, or production event endpoint. Solver inputs remain in the browser.
Corrections
Report the Puzzle ID, page URL, language, and the fact that appears wrong. A confirmed correction is tied to a dated record and a new verified artifact.
Contact and correction channel
Use the feedback page or email the address shown there. Please do not send passwords, private keys, payment details, or other sensitive information.