Case file

The Five-Star Daily No. 76 November 26, 2026 Open and Shut

The Front Office Discrepancy: a free mystery logic-grid puzzle

The claim names the Front Office. It does not name a person, which is why it came to me. These are the facts, and the facts are enough.

This free Open and Shut logic-grid puzzle has 4 suspects, 4 locations, and 4 pieces of evidence. New to logic grids? Start with the mystery-solving guide.

How to mark the grid

●
These two belong together.
✕
These two are ruled out.
blank
Still undecided.
How to play

Click, tap or press Enter on a cell to cycle it: blank, then ● for a pairing you have confirmed, then ✕ for one you have ruled out. Nothing fills itself in — the deductions are yours to make. Use the arrow keys to move around the grid.

Fill obvious Xs does the bookkeeping only: for each ● you have marked, it crosses off the rest of that pairing's own row and column. It never adds a ●, never reads a clue, and never changes a mark you made.

On a narrow screen the grid scrolls sideways.

Every case has exactly one solution, and it is always reachable by deduction alone. Nothing here guesses for you, and Check will not tell you which mark is wrong.

What Margo can prove

  1. Graciela Nunes was in the Croquet Lawn.
  2. Bertrand Ashe was found with the Salt-Stiff Beach Towel.
  3. Rosalind Pryce was not in the Front Office.
  4. Rosalind Pryce was not in the Laundry.
  5. Adriana Cuevas was not in the Front Office.
  6. Adriana Cuevas was not found with the Unsigned Release Form.
  7. Rosalind Pryce was not found with the Unsigned Release Form.
  8. Rosalind Pryce was not found with the Tarnished Belt Buckle.

The grid

On a narrow screen the grid scrolls sideways.

Your marks, completions and streak are saved in this browser only. There is no account, and clearing your browser data clears that local progress. If you accept analytics, the site sends anonymous puzzle-usage events; it never sends your grid marks, clues or solution.

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