Frontier Logic

Daily case

Frontier Logic Daily No. 13 September 17, 2026 Rookie

The Muleshoe Spring Reckoning: a free Western logic-grid puzzle

They're still arguing about what happened near Muleshoe Spring. The facts, such as they are, are written here. The territory expects an answer by sundown.

This free Rookie logic-grid puzzle has 4 suspects, 4 locations, and 4 pieces of evidence. New to logic grids? Start with the pencil-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 confirmed pairing, 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.

Clues and evidence

  1. Cassius Mowbray was placed at Muleshoe Spring, plain as day.
  2. No one puts Quiet Tom Beaudry at Cañada Seca.
  3. Chin Gwok was never linked to the worn mail pouch.
  4. The worn mail pouch never belonged to Quiet Tom Beaudry.
  5. You can rule out the bloodstained duster for Chin Gwok.
  6. The deputy struck Cañada Seca off Sheriff Delaney Hoke's account.
  7. The deputy struck the bloodstained duster off Quiet Tom Beaudry's account.
  8. Whatever else is true, Quiet Tom Beaudry wasn't at Toll Gate Pass.
  9. Quiet Tom Beaudry had no use for the hollowed boot.
  10. The worn mail pouch wasn't Cassius Mowbray's.

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 a hundred more

Five volumes, printed and portable

Each Frontier Logic volume collects 100 western mystery logic-grid puzzles, every one with exactly one solution and a complete answer key. Every volume stands alone, in standard and large print.

Opens Amazon, who sell the books and set the final price.