Privacy Policy
Last updated: November 14, 2026
Overview
This policy explains what information Reversi Online at reversi.teamgugu.com handles. You can play without an account, and we never ask for your name or email address to play.
Data kept in your browser
Your settings (sound, move hints, flip badges, AI level and colour) are saved in your browser’s local storage so they are remembered next time. For online play, a random session id is kept in session storage so a page reload keeps your seat. Neither leaves your device except as described below.
Online games
When you play Online Quick Match or Play with a Friend, our server (running on Cloudflare Workers and Durable Objects) receives your random session id and your moves in order to run the game. Room data are deleted automatically after a room has been idle for about six hours. We do not build profiles of players.
Advertising and cookies
This site shows ads served by Google AdSense. Google and its partners may use cookies to serve ads based on your previous visits to this and other websites. You can learn how Google uses this information at policies.google.com/technologies/ads and turn off personalised advertising at adssettings.google.com.
Server logs
Like any website, our hosting provider may process technical data such as IP addresses in short-lived logs to deliver pages and protect the service from abuse.
Children
The site is a general-audience game and does not knowingly collect personal information from children.
Contact and changes
For privacy questions or requests, write to cesilphp@hotmail.com. If this policy changes, the date at the top of this page will change too.