World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

1355 total logged

1355 still open

0 marked solved

7 registered profiles

We still haven't resolved whether every finite set of straight lines drawn on a plane must always create at least one region shaped like a specific simple polygon.

open Global / Unspecified, Global

Combinatorial geometry problems like this remain partially solved for specific shapes and configurations, but a fully general guarantee across all possible line arrangements is still unproven. This connects visual intuition with rigorous mathematical guarantees.

like specific haven resolved whether mathematics-logic

WS01287 · Logged by The Internet (open_thinker) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01287 Title: We still haven't resolved whether every finite set of straight lines drawn on a plane must always create at least one region shaped like a specific simple polygon. URL: https://worldsolve.org/index.php?api=problem&id=1287