Account & Data Deletion

Last updated: September 29, 2026

This page explains how to request deletion of your Echess account and the personal data associated with it, what gets deleted, and what we may need to keep.

How to request deletion

You can request deletion in either of the following ways. Both are free of charge.

Option 1 — In the app or on the website (fastest)

Sign in to your account.
Open the profile dialog (the "Edit" button in the lobby header).
Scroll to the Danger zone at the bottom and click Delete account and personal data.
Enter your password to confirm, then click Permanently delete account. If you created your account through WeChat or Steam (no password set), enter your username instead.

Your account and personal data are removed immediately — you will be signed out and returned to the login page. No email round-trip needed.

Option 2 — By email

If you cannot sign in (for example, you forgot your password or lost access to your WeChat account), email tdedao@qq.com with the subject line "Account Deletion Request" and include:

Your username (and your account ID if you know it).
A statement that you want your account and personal data permanently deleted.

We will reply to verify that the request comes from the account owner before we proceed. We complete verified requests within 30 days and will email you when it is done.

Guest accounts. If you played as a guest (without registering), there is no account to delete. Your guest data lives only in your own device's local storage — clear it from your browser or device settings. If you would like us to delete server-side guest records, email us with your guest ID.

Before you write in. If you simply want to stop using the Service, you can log out or uninstall the app without deleting anything. Deletion is only needed if you want your personal data removed from our servers.

What we delete

When your request is completed, we permanently remove:

Data	Action
Username, nickname, password hash, email address	Deleted
Account ID and all profile data (country, avatar, language, VIP status)	Deleted
Game history, move records, replays, and share links	Deleted
Scores, Elo rating, coins balance, win/loss statistics	Deleted
Endgame puzzles and board layouts you created	Deleted
Club membership and ownership records	Deleted
Private messages, follows, and follower relationships	Deleted
Leaderboard entries	Removed — you no longer appear

What we may need to keep

A small amount of information may be retained after deletion, only where we are required or permitted to do so:

Purchase and transaction records (product ID, transaction ID, amount, date) — retained as required for tax, accounting, and app-store obligations, typically for the period required by applicable law. These records contain no payment card details.
Fraud, abuse, and ban records — where a user was banned for cheating or abuse, we may retain a minimal record to prevent re-registration and repeat abuse.
Aggregated, anonymised statistics — such as total games played. These can no longer be linked to you.
Backups — deleted data may persist in encrypted backups for a short period before being overwritten in the normal backup rotation.

This action cannot be undone. Once your account is deleted, it cannot be restored. Your coins, VIP benefits, scores, purchase entitlements, and game history are permanently lost and are not refundable. If you have an active VIP subscription or recently made a purchase, consider waiting until the period you paid for has ended.

Questions about deletion? Email tdedao@qq.com.

账号与数据删除

最后更新：2026年9月29日

本页说明如何申请删除您的 Echess（棋类对弈）账号及其关联的个人数据、哪些数据会被删除，以及哪些数据我们可能需要保留。

如何申请删除

可通过以下任一方式申请，均为免费。

方式一：在应用或网页内操作（最快）

登录您的账号。
打开资料弹窗（大厅顶部的「修改」按钮）。
滚动到底部的危险操作区，点击「删除账号与个人数据」。
输入登录密码确认后，点击「永久删除账号」。若您的账号通过微信或 Steam 创建（未设置密码），请改输入用户名。

账号与个人数据立即删除，您将被登出并回到登录页，无需等待邮件往返。

方式二：发送邮件

若您无法登录（例如忘记密码、微信账号无法使用），可发送邮件至 tdedao@qq.com，标题注明「账号删除申请」，并包含：

您的用户名（如知道账号 ID 请一并提供）。
一句明确说明：希望永久删除账号及个人数据。

我们会先回复核实申请人确为账号本人，再进行删除。核实通过的申请将在 30 天内完成，完成后我们会邮件告知您。

游客账号。若您一直以游客身份游戏（未注册），则没有账号可删。游客数据仅存在于您本机的浏览器/应用本地存储中，可在系统设置中清除。如需我们删除服务端的游客记录，请附上您的游客 ID 来信申请。

来信前请确认。若您只是不想再使用本服务，直接退出登录或卸载应用即可，无需删除任何数据。只有当您希望我们从服务器上移除您的个人数据时，才需要提出删除申请。

会删除哪些数据

数据	处理
用户名、昵称、密码哈希、邮箱	删除
账号 ID 及全部资料（国家、头像、语言、VIP 状态）	删除
对局历史、走子记录、棋谱回放与分享链接	删除
积分、等级分、铜钱余额、胜负战绩	删除
您创建的自定义残局与布阵方案	删除
棋社成员与社长身份记录	删除
私信、关注与粉丝关系	删除
排行榜条目	移除，不再出现

可能需要保留哪些数据

购买与交易记录（商品 ID、交易号、金额、日期）——依法需用于税务、财务与应用商店结算核对，通常按适用法律要求的期限保留。此类记录不含任何支付卡信息。
违规与封禁记录——若账号因作弊或滥用被封禁，我们可能保留最小必要记录，用于防止重新注册后再次违规。
聚合匿名统计——如总对局数，已无法关联到您个人。
备份数据——已删除的数据可能在加密备份中短期残留，随备份轮转被覆盖。

此操作不可撤销。账号删除后无法恢复，铜钱、VIP 权益、积分、已购权益与对局历史将永久丢失且不予退款。若您有生效中的 VIP 或刚完成购买，建议等已付费周期结束后再操作。