Frontier Logic

Daily case

Frontier Logic Daily No. 57 October 31, 2026 Rookie

The Piñon Bluff Reckoning: a free Western logic-grid puzzle

Four riders were out past Piñon Bluff that morning. All four have an explanation, and the sheriff believes none of them. 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. Ephraim Boyd's presence at Painted Tinaja was no secret.
  2. Ory Pinnick swore never to have set foot in Toll Gate Pass, and the ledger agrees.
  3. The lump of sealing wax never belonged to Ory Pinnick.
  4. Ottilie Bracken swore off any connection to the broken strongbox hasp, and the ledger agrees.
  5. Nobody could place Ottilie Bracken at Cuesta Alta.
  6. Ottilie Bracken never laid hands on the tin of hearth ash.
  7. Ory Pinnick was never linked to the tin of hearth ash.
  8. Nobody could connect Nettie Frayne to the lump of sealing wax.
  9. It wasn't Ottilie Bracken who turned up with the lump of sealing wax.
  10. No one puts Ottilie Bracken at Toll Gate Pass.

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.