SUPPORT支持
Let’s get you unstuck.
Questions about the fourth dimension, controls, progress, or sharing? Start here—or write directly to the person building the game.
一起解决问题。
对第四维、操作、进度或分享功能有疑问？可以先查看这里，也可以直接写信给游戏开发者。
Support is available by email可通过电子邮件获得支持
Include your device model, OS version, app version, and the steps that led to the issue.请附上设备型号、系统版本、App 版本和问题发生步骤。
How does 4D Sudoku work?
The board has 81 cells arranged in four dimensions. Every cell belongs to six intersecting 3 × 3 constraint planes, and every plane must contain the digits 1–9 exactly once. Open Help in the app for an interactive introduction.
Where is my progress saved?
Puzzles, settings, history, and statistics are stored locally on your device. The app requires no account and has no cloud-sync service. Normal operating-system device backups may include app data under your platform provider’s settings.
Does the app need internet access?
No. Puzzles are generated locally and ordinary play works offline. Store downloads, operating-system services, and sending a support email are separate from the app’s puzzle experience.
How do I share a result?
Open the More menu during a game and choose Share. The app creates a PNG image and hands it to the system share sheet. Saving directly to Photos uses add-only photo-library access and does not read your library.
How do I reset local data?
You can reset an individual puzzle from the in-game More menu. Removing the app deletes its local data from the device, subject to any device backup you control. If you reinstall from a backup, the operating system may restore that data.
Store availability
4D Sudoku is preparing for release on the App Store. The public product link will appear on the home page when the listing is live. An Android edition is planned, but no release date has been announced.
4D Sudoku 怎么玩？
题盘由四维空间中的 81 个格子组成。每个格子同时位于六个相交的 3 × 3 约束面上，而每个面都必须恰好包含数字 1–9 各一次。打开 App 内的“帮助”即可进入互动教学。
我的进度保存在哪里？
题目、设置、历史与统计都保存在你的设备本地。App 不要求账号，也不提供云同步服务。系统级设备备份可能会按照平台提供商的设置包含 App 数据。
App 需要联网吗？
不需要。题目在本地生成，正常游戏可以完全离线。商店下载、操作系统服务和发送支持邮件属于 App 解题体验之外的独立行为。
如何分享结果？
在游戏中打开“更多”菜单并选择分享。App 会生成一张 PNG 图片，并交给系统分享菜单处理。直接保存到相册时只使用“仅添加”权限，不会读取你的照片库。
如何清除本地数据？
你可以从游戏内“更多”菜单重置当前题目。删除 App 会移除设备上的本地数据，但你自行控制的设备备份除外；如果从备份恢复 App，操作系统也可能恢复这些数据。
商店上线计划
4D Sudoku 正在准备登陆 App Store。公开产品页上线后，首页会立即加入下载链接。Android 版本也在规划中，但目前尚未公布发布日期。