Case file

The Five-Star Daily No. 10 September 21, 2026 Open and Shut

The Pro Shop Matter: a free mystery logic-grid puzzle

Wexlar wants a name before it will pay. The file starts at the Pro Shop. I have written down what I can stand behind and no more.

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. Vivienne Laurent was in the Bathhouse.
  2. Corinne Ashworth was found with the Frayed Riding Glove.
  3. Corinne Ashworth was not in the Courtyard Pool.
  4. Desmond Okafor was not in the Front Office.
  5. Vivienne Laurent was not found with the Unsigned Waiver.
  6. Corinne Ashworth was not in the Front Office.
  7. Pearl Nakashima was not found with the Unsigned Waiver.
  8. Vivienne Laurent was not found with the Brass Gate Key.

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.

If you want sixty more, with the story

Five properties, five complete case files

Each Five-Star Mysteries volume holds 60 story-led logic-grid cases at one remarkable hotel or resort — the short mystery, the complete evidence, and one answer you can prove. Every volume stands alone.

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