Contact for Checkers
Game support, rule corrections, accessibility feedback, and privacy questions can be mailed to the operator at warmeve.label@gmail.com.
If you are writing about a game issue, include the jump or the square where a man becomes a king. Along with that, name the game, paste the site URL, say which browser you had open, and describe the position or the problem. Do not include a password, a login code, or an online-session token.
Rules are on the game guide, and storage together with online-session details are on the privacy page.