Observed arrival · 2026-08-23

Sightlines, a Daily Chess Deduction Game

sightlines.dev Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

A free daily puzzle where you place chess pieces on a grid so every number matches the pieces attacking that square.

Landing page captured for the 2026-08-23 issue.

Why it surfaced

Sightlines turns chess attacks into a compact logic puzzle: rooks can see through pieces, gaps stop attacks, pawns only attack upward, and knights ignore the grid’s obstacles. It has an archive, browser-kept statistics, hints, attack-line display, and no ads or account requirement.

A free daily puzzle where you place chess pieces on a grid so every number matches the pieces attacking that square.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

One card from the complete issue

Condor Fare: 200 Worms

287,002 arrived 1,000 judged 1000 catalogued Enter the complete issue