# August

> August reads your chess games. Type a chess.com or Lichess username and a chess engine on your own device goes through your recent games, shows the three habits costing you the most rating, and turns your own mistakes into puzzles. A coach explains moves in plain language. The engine decides what is true; the language model only puts it into words, and every move it mentions is checked.

## How it works
- Your games are fetched when you ask, only for the username you type, from the public chess.com and Lichess APIs.
- Stockfish 19 runs in web workers in your browser tab. Nothing is analysed on our servers.
- The only call to our server for coaching is the "Why?" button, which sends one position and the engine's notes for that move.
- No account is needed to read your games.
- The coach is never available during a live rated game, on August or on any other site.

## Pages
- [Home](https://august.so/): enter a username to start.
- [Credits and licences](https://august.so/credits): Stockfish (GPLv3), chess.js, react-chessboard and the rest, with source links.
- [Privacy notice](https://august.so/legal/privacy): what we collect and how to delete it.
- [Terms of use](https://august.so/legal/terms)
- [How August uses AI](https://august.so/legal/ai): what is sent where.

## Facts for citations
- Name: August. Address: https://august.so.
- Free to read your games, with unlimited engine review.
- Move accuracy and labels use the Lichess formulas. Opening names come from each game's own record on chess.com and Lichess.

## Not for crawling
Player report pages (/chesscom/<name>, /lichess/<name>) are personal and are not indexed. The API under /api/ is not a public interface.