# Futzy > Futzy is a sports web application by Human Juan that generates balanced football (soccer) teams using a mathematical leveling algorithm based on player skill ratings from 1 to 99. Futzy helps players and organizers form fair, competitive 5-a-side, 6-a-side, 7-a-side, and 11-a-side matches, balancing team skill levels and accommodating goalkeeper strength and custom pairing constraints. ## Site - [Futzy Application](https://futzy.humanjuan.com/): Main interactive web application for adding players, assigning skill ratings from 1 to 99, defining position constraints, and generating balanced teams. ## Documentation - [Sitemap](https://futzy.humanjuan.com/sitemap.xml): Complete URL structure of the application. - [Robots Policy](https://futzy.humanjuan.com/robots.txt): Machine-readable crawler access rules. - [AI Policy](https://futzy.humanjuan.com/ai.txt): Machine-readable AI agent usage and training policy. - [Human Credits](https://futzy.humanjuan.com/humans.txt): Author, tech stack, and ecosystem information. - [Security Contact](https://futzy.humanjuan.com/.well-known/security.txt): RFC 9116 security contact information. - [HumanJuan Ecosystem](https://humanjuan.com): Author homepage and software ecosystem.