ClueAxis

Case Grid 004 · North Research Lab · Zebra Logic Grid

The Sample in Freezer C

At North Research Lab, four accounts crossed four places and four objects. Match every person to close the sample in freezer c.

Goal Use each exact clue to complete all four matches.

Today’s workspace

Case Grid

Past grids
0 / 4 people matched
00:00
Cell mark

Automatic deductions can’t be edited here; tap one to see its source.

Exclude mode is selected. Choose Confirm before placing a green check.

Verified Zebra logic-grid record

People, places, and objects in The Sample in Freezer C

At North Research Lab, four accounts crossed four places and four objects. Match every person to close the sample in freezer c.

People

  • Greta Moss
  • Hale Quinn
  • Cora Finch
  • Amara Wells

Places

  • Sample Desk
  • Cold Store
  • Bay Two
  • Glass Corridor

Objects

  • Sensor Clip
  • Culture Plate
  • Access Badge
  • Lab Notebook

Exact clues

  1. Sensor Clip was logged at Sample Desk.
  2. Greta Moss did not carry Sensor Clip.
  3. Hale Quinn carried Access Badge.
  4. Cora Finch was not assigned to Sample Desk.
  5. Cora Finch did not carry Lab Notebook.
  6. Greta Moss was not assigned to Bay Two.
  7. Access Badge was not logged at Bay Two.
  8. Lab Notebook was not logged at Glass Corridor.
Read the closed-case resolution

Greta Moss was matched to Cold Store with Lab Notebook. Once that link was fixed, every remaining account in the sample in freezer c 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.