Privacy policy
This page explains what information Cat Sudoku handles when you play.
Game progress
Cat Sudoku saves which levels you solved, your best times, your settings and any half-finished board, so you can pick up where you left off. This is kept in your browser's local storage on your device.
The game also keeps an anonymous backup of your solved levels and daily times on our server, linked to a random identifier stored in a cookie. It contains no name, email address or other personal details.
Daily ranking
When you solve the daily puzzle without hints, your time is sent to our server so the game can tell you your rank for that day. Rankings are linked to the same random identifier, not to your name.
Comments
If you post a comment, we store the text you write and the name you choose (the name is optional). Comments are shown publicly on the page. Please don't post personal information in a comment.
Hosting and fonts
Cat Sudoku is hosted on Cloudflare, which processes basic request information such as your IP address to deliver the site and protect it from abuse. The page loads its typeface from Google Fonts, which receives your IP address when the font is downloaded.
Statistics
We may use privacy-focused visit statistics to count visits and see which pages are used. These statistics do not identify you personally.
Your choices
Clearing your browser's site data for catsudoku.net removes the progress stored on your device and the cookie that links you to the server backup, so the backup can no longer be connected to you. To ask us to delete a comment or your server backup, write to contact@catsudoku.net.
Changes
If this policy changes, we will update this page.