Vibecoded Neural Chess Engine Reaches 2,700 Elo Using a Karpathy-Inspired AI Research Loop

r/MachineLearning·medium signal

A developer built Autochess NN — a browser-playable AlphaZero-style neural chess engine rated ~2,700 Elo — using a vibe coding + AI-assisted research loop inspired by Karpathy's AutoResearch, running entirely on a home PC. The r/MachineLearning post (54 upvotes, 36 comments) documents the full methodology: iterative agent-assisted experiment design, Claude Code for implementation loops, and self-play training without cloud compute. It is a clean demonstration that production-quality ML systems are now accessible to solo builders through agentic iteration.