What the official page supports
The public description gives controls, cleanup goals, upgrades, abilities, and update-like milestones, but no visible active code string.
- Use only the live game or developer-visible source for final code strings.
- Do not stop a clean shelf route to try random comments.
- If one exact source-backed code fails, return to sorting books.
- Keep the main loop focused on shelves, abilities, Grand Library, and time badges.
When to redeem
Redeem between attempts so you do not lose a book stack or shelf route.
- Finish the current shelf.
- Put down uncertain books.
- Open the live code surface if it exists.
- Try one exact string.
- Resume the route.
What matters more than codes
Badges and the official description show that cleanup consistency is the real progression path.
- Finish two shelves.
- Reach 25%.
- Reach halfway.
- Finish the library.
- Push Grand Library and Pro Mode after ordinary clears.