Who writes here and where the examples come from

Who writes

Sudoku Sagax is made by Vulpes Sagax UG in Straubing, Germany, a two person company. The articles are written by the same people who wrote the puzzle generator and who read the bug reports players send in. We are not world class solvers. What we do have is the code that produces a few thousand puzzles a day, and the numbers showing where people actually get stuck.

Where the examples come from

Every example grid in an article comes from our own generator, js/sudoku-engine.js, not from a collection somewhere on the web. The reason is practical: we can check every claim about an example against the code instead of repeating it. When an article says a puzzle has exactly one solution, that is because the generator guarantees it and a test verifies it.

The same goes for numbers. Times, difficulty levels and mistake budgets appear in the article exactly as they appear in the source. Where we derive something from saved games, we say that it is an average across all players. Individual accounts, names or times never appear in an article.

How the texts are made

Articles are written with AI assistance and reviewed editorially before they go live. Reviewed means: every number is checked against the code, every statement about the rules against the rules page, and every example is clicked through in a browser. Anything we cannot back up gets cut, however good it sounds.

One article goes out per week. That is deliberately few. We write about questions people actually type into a search box, not about the history of Sudoku in the nineteenth century.

Corrections

If something in an article is wrong, tell us through the report function inside the game. We correct the article and raise the modified date. We never re-date articles to make them look fresh.

More about the game itself is on the page about the eleven puzzle types and in the solving techniques.