Frontier Logic

Daily case

Frontier Logic Daily No. 118 December 31, 2026 Rookie

The Buzzard Rock Inquiry: a free Western logic-grid puzzle

Something went wrong at Buzzard Rock, and the only honest account of it is the one set down in the ledger below. 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. Two witnesses put Sundance Marlow at Rattlesnake Pass.
  2. Dusty Cole swore never to have set foot in Sunbaked Mesa, and the ledger agrees.
  3. You can rule out Sunbaked Mesa for Widow Kessler.
  4. Widow Kessler swore off any connection to the folded wanted poster, and the ledger agrees.
  5. Widow Kessler wasn't carrying the bloodstained bandana.
  6. Dusty Cole was never linked to the folded wanted poster.
  7. You can rule out the half-melted candle for Widow Kessler.
  8. Dusty Cole stayed well away from Buzzard Rock.
  9. Boone Talbot never laid hands on the folded wanted poster.
  10. Dusty Cole had no use for the half-melted candle.

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.