Frontier Logic

Daily case

Frontier Logic Daily No. 74 November 17, 2026 Rookie

The Copper Basin Ledger: a free Western logic-grid puzzle

It started at Copper Basin and it ended badly, and the space in between is what wants sorting out. See what the facts will carry.

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. The filed scale weight came off Nan Ferrell, and there's no arguing it.
  2. Nan Ferrell swore never to have set foot in Bitter Spring, and the ledger agrees.
  3. Shotgun Perce Hale had nothing to do with the worn fuse pouch.
  4. Mule-Ear Bodie kept well clear of Copper Basin.
  5. Kettle Jack Orrick swore off any connection to the bent assay ladle, and the ledger agrees.
  6. Kettle Jack Orrick was never once placed at Quicklime Pond.
  7. Mule-Ear Bodie stayed well away from Quicklime Pond.
  8. Nobody could connect Kettle Jack Orrick to the worn fuse pouch.
  9. Mule-Ear Bodie was nowhere near Bitter Spring.
  10. The deputy struck Bitter Spring off Kettle Jack Orrick's account.

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.