Curifold Puzzle School · FREE PRACTICE SHEET
Check a mystery against every clue
Reject a theory if even one reliable clue contradicts it.
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Your puzzle
One of four fictional volunteers returned a brass token. The returner is the only person matching every clue. The candidate log is complete and accurate for this puzzle. Check the whole record rather than choosing the first partial match.
- The returner arrived before 4:15.
- The returner used the east door.
- The returner did not carry a box.
- Exactly one listed person returned the token.
| Person | Arrival | Door | Box? |
|---|---|---|---|
| Ari | 4:05 | East | Yes |
| Bo | 4:10 | West | No |
| Cleo | 4:20 | East | No |
| Dev | 4:12 | East | No |
Copy the conditions
Check every candidate against all conditions
Name each contradiction
Verify the survivor
Test the changed cutoff
andrew-stinson.com/learn/puzzle-school/check-a-mystery-against-every-clue/ · 2026-10-06