Support

For sudo sudoku 2.0 on iPhone, iOS 17 or later

Quick help

My puzzle or timer disappeared

An active puzzle is saved locally as you play. Relaunch the app and open archives to resume it. The play clock counts active time only and pauses while the app is in the background.

Game Center is not showing my profile

sudo sudoku works without Game Center. For leaderboards and achievements:

1. Open Settings → Game Center on your iPhone.
2. Confirm that you are signed in.
3. Return to sudo sudoku and open whoami.

Score and achievement delivery may wait until the device is online. If Apple's Game Center service is unavailable, your local game and rating still work.

My leaderboard time did not improve

Game Center retains the best eligible time for each difficulty. Only completed, independently played puzzles submit a time. Viewing a saved solution does not submit a score.

I found a conflicting number

A conflict means the same digit appears twice in a row, column, or 3×3 box. sudo sudoku has no lives or fail state: clear the value or use undo and continue.

I need less motion

Enable Settings → Accessibility → Motion → Reduce Motion. sudo sudoku provides an immediate or simplified path for its animations. The puzzle remains fully playable without motion or haptics.

Data and privacy

Gameplay data stays on your device. There is no sudo sudoku account, analytics, advertising, tracking, or developer-operated cloud service. Game Center is optional and operated by Apple.

• Read the Privacy Policy.
• To remove local gameplay data, delete the app. This cannot be undone.
• Deleting the app does not delete Game Center leaderboard scores or achievements; Apple manages that data through Game Center.

Never post personal information, Apple Account details, or private Game Center information in a public issue or discussion.

Report a bug

Use the bug report form for a reproducible problem. Please include:

• what you expected and what happened;
• clear reproduction steps;
• app version, iOS version, and iPhone model;
• a screenshot or screen recording when useful, with personal information removed.

Security vulnerabilities must not be posted publicly. Follow the private reporting process in SECURITY.md.