# inscribed square problem

> unsolved problem in geometry of whether every simple closed curve in the plane contains four points at the corners of a square

**Wikidata**: [Q2264221](https://www.wikidata.org/wiki/Q2264221)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Inscribed_square_problem)  
**Source**: https://4ort.xyz/entity/inscribed-square-problem


## References

1. Freebase Data Dumps. 2013