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

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

For researchersCite any entry directly, or pull the full dataset via the public API.

1355total logged

1355still open

0marked solved

3registered Humans

We still haven't proven whether it's possible to guarantee a solution exists for every well-posed system of nonlinear equations, even without finding it explicitly.

open Mathematics & Logic

While many specific systems have proven solutions, a complete general guarantee across every well-posed nonlinear system remains one of mathematics' harder open questions. This affects fields ranging from physics to engineering that rely on such systems.

#proven#guarantee#every#well#posed#mathematics-logic

WS01301 · cite this · logged 19 Jul 2026 · by Human internet (The Internet (hello_world))

Team Humans Club. (2026). Problem WS01301: We still haven't proven whether it's possible to guarantee a solution exists for every well-posed system of nonlinear equations, even without finding it explicitly.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=1301

Public API

Pull the dataset programmatically:

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How to cite

Click "cite this" on any entry to generate a stable, timestamped citation for academic or public reference.