Contact

The contact address for ranki.gg is mikelyaps@gmail.com.

ranki.gg is made by Michael Yao. That mailbox is the one stored in the site config and printed on the about page, the privacy policy, and the terms. Use it for a wrong number, a broken source link, a privacy question, or a puzzle you want the game to consider.

A data correction

Name the puzzle, the country or the person, the figure you saw, and the publisher URL that disagrees. The about page says corrections are welcome and get fixed. Do not send account passwords, payment card numbers, or anything else that is private. The privacy policy says puzzle suggestions can include an optional name or handle, and that the page cannot read those suggestions back.

Privacy and ads

Questions about the anonymous score row, the sign-in session, or Google AdSense cookies go to the same address. The privacy policy is the full account of what stays in the browser and what Google does with advertising cookies. Personalised-ad choices are made at Google Ads Settings, not by emailing a new preference into the game.

Playing the game

You do not need to email anyone to play. Today's puzzle is on the home page. The rules for each mode are on How to play. The explainers are on Learn. The publishers behind those pages are listed on Data sources and methodology.

If you are writing about a number on a learn page, quote the table and the source URL on that page. The learn pages are static copies of figures already stored with the puzzles. A mismatch means the page and the puzzle drifted, and that is the report we want. Include the page address, the country, and the figure you expected. We would rather fix a copied digit than guess which card you meant.