ClueAxis
An after-hours museum security desk with a wall-mounted camera.

Case Grid 001 · Museum Security · Zebra Logic Grid

The Ledger in the Dark

At Museum Security, four accounts crossed four places and four objects. Match every person to close the ledger in the dark.

Goal Use each exact clue to complete all four matches.

Today’s workspace

Case Grid

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Verified Zebra logic-grid record

People, places, and objects in The Ledger in the Dark

At Museum Security, four accounts crossed four places and four objects. Match every person to close the ledger in the dark.

People

  • Dax Rowan
  • Ben Ortiz
  • Gia Nouri
  • Hugo Bell

Places

  • Archive Room
  • Conservation Lab
  • Roof Office
  • Loading Bay

Objects

  • Red Folder
  • Blue Ledger
  • Silver Badge
  • Pocket Torch

Exact clues

  1. Pocket Torch was logged at Archive Room.
  2. Gia Nouri was not assigned to Roof Office.
  3. Ben Ortiz was assigned to Archive Room.
  4. Dax Rowan was not assigned to Roof Office.
  5. Dax Rowan was not assigned to Loading Bay.
  6. Silver Badge was not logged at Roof Office.
  7. Red Folder was not logged at Roof Office.
  8. Red Folder was not logged at Loading Bay.
Read the closed-case resolution

Dax Rowan was matched to Conservation Lab with Red Folder. Once that link was fixed, every remaining account in the ledger in the dark had only one possible place.

The rule in ten seconds

How to play

Exclude. Tap a blank cell once to mark an impossible match.

Confirm. Tap again to lock a match and clear its row and column.

Connect. Two linked matches automatically complete the third matrix.

Case Grid belongs to the classic Zebra-puzzle family: every clue connects categories until one complete set of matches remains.