Terms of use / 用户协议

Yijiang / HeadshotAirBattle · TYBB Tech

Effective: 28 October 2026.

Using Yijiang

Yijiang provides a board game, local program and AI chessman training, and matches. An account is optional for local play and training. The current version is free. Future paid services, if introduced, will describe their prices and terms separately before purchase.

Your account and files

Keep your Apple or Google account secure. Choose a nickname that does not impersonate others or contain abusive content. You manage your local chessmen and exported backups. Signing in on another device does not transfer model files; use export and import. Removing the app or clearing its data can remove local records. Export files you wish to keep before doing so.

Fair use and availability

Do not attack the service, access another person's account, falsify synchronized records or misuse other people's personal information. We may restrict abusive activity to protect users and the service. Training performance and match outcomes vary; no improvement or victory is guaranteed. Service availability may be affected by maintenance or network failures. These terms do not limit rights provided by applicable consumer law.

Deletion and support

You may stop using the app at any time. For online account deletion use the in-app account settings or submit a deletion request. See the privacy policy for data handling. Contact service@tybbtech.com for help.

中文说明

弈将提供本机棋手培养、AI训练与对战，训练效果及胜负不作保证。本版免费；未来付费服务会在购买前另行说明。用户负责管理第三方登录账号和导出文件。换设备不会自动转移模型，应使用导出导入；卸载或清理数据前请备份。请勿冒充他人、攻击服务、访问他人账号或伪造同步记录。可随时停止使用，并从账号设置或删除页面申请删除在线账号。本协议不限制适用法律规定的用户权利。支持邮箱：service@tybbtech.com。