Chamber 15 · Gate of Seals

Forgotten Cells

Names that never came

NULL+80 XP

Locked

Clear the previous chamber to unlock this one. You can still preview the briefing.

Briefing

Some roster slots were carved and never filled. The seal clerk needs every prisoner who has no recorded crime — the blanks that haunt the ledger.

Return name and cell for prisoners where crime IS NULL, ordered by name.

IS NULL finds missing values — equality checks like = NULL never match.

Chamber schema

prisoners4 cols

Roster with missing crime values

idnamecellcrime

chamber_15.sql

Results appear here after you run a query. Correct rows alone are not enough — the Warden must seal your loot.

Ask the Warden

AI SQL coach — hints and fail reviews, not spoilers

Warden

I am the Warden. Ask for a hint, paste a failing query, or request a review — I won't hand you the full answer.