Inspired by GothamChess's AI chess videos - this is an LLM harness for chess. Fixes the real problems that were causing the models to stumble; proper board state context and move validation. Pit GPT, Gemini, Claude and others head-to-head with live reasoning streams, knockout tournaments, and PGN export.

A small code snippet as a part of "How to Write an Agent" Blog Post

Coordinated codex run harness — plan, execute, review, and ship

agentic CLI tool in rust using openrouter