BFChess: A Chess Engine in Brainfuck, Built by a Coding Agent

BFChess is a UCI-compatible chess engine written entirely in Brainfuck. The generated engine is 5.6 MB of raw Brainfuck code (eight distinct characters: ><+-.,[]), produced by a 7,400-line Python compiler. Here is what a small excerpt of the engine looks like: It implements depth-3 minimax search with alpha-beta pruning, full move generation (including castling, en passant, and promotion), and…