How do I cancel my account?

Thanks.

what a pitty, that you want to leave! why?
normally I think I is not possible to delete your account (your games are public), but you can send feeback. and you could write something in your profile like "I left the site. don't chellange me"
:'(
th

Go to your "site settings" page and un-check the box "Receive move notifications"
Go to your "my challenge settings" page and set your maximum number of games to zero.
Go to your "profile settings" page and enter the text "Inactive account" in the "about you" text.

Play out your remaining games or resign them.

They you can offksi and you'll never be bothered by RHP again. Shame though.