Observed arrival · 2026-09-29
Sleuthic’s Black Files: a daily murder-logic grid
Sleuthic offers a free daily deduction puzzle where players place seven people on a grid and use clues to identify who was alone with the victim.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Fans of logic-grid puzzles and deduction games
- Worth noticing
- The victim’s zone must contain exactly two people, making the crime-scene rule part of the grid logic.
Field notes
The rules distinguish seats from empty squares and define “next to” as orthogonal adjacency within the same zone. Optional crosses and pencil notes help track possibilities, while the page says they do not affect answer checking. The archive and eight-rank casebook provide a route beyond the daily case; the site also says progress is saved on the current device only.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue