Chessmetrics

A chess position analysis API server that calculates various metrics for chess positions. Provides them via REST API and browser userscript.

Purpose

Chessmetrics analyzes chess positions and returns calculated metrics like how many pieces attack a certain square from both sides, is the piece hanging, is the piece pinned, and so on. It can run as a standalone API server and can also be installed as a browser userscript for chess.com and lichess.org and run inside the browser.

Components

• API Server: REST API for chess position analysis
• Browser Userscript: Client-side integration for chess websites
• Metrics Engine: Extensible system for calculating chess metrics

Quick Start

npm install
npm run dev
curl "http://localhost:3000/api/v1/standard/fen/rnbqkbnr%2Fpppppppp%2F8%2F8%2F8%2F8%2FPPPPPPPP%2FRNBQKBNR%20w%20KQkq%20-%200%201"

Documentation

• API Documentation
• Source Code
• Userscript
• Architecture Decisions