Regex Chess: A 2-ply minimax chess engine in 84,688 regular expressions | Hacker News

Hacker News discussed a chess engine built from 84,688 regular expressions.

The engine uses a 2-ply minimax approach and can find a winning line in a sample game.

The post included the mating sequence and a Lichess analysis link for verification.

The project shows how far regex and text-processing techniques can be pushed in game logic.