mini-chessformer-v1

A Chessformer chess engine for the browser: it reads the 64 squares, searches with MCTS, and plays one legal move.

The original Chessformer-lite release, about 7.6 million parameters.

What's in this repo

This is a browser chess engine package (chess-gpt-package-v1), not a Transformers checkpoint.

A compatible runner loads:

• browser/manifest.json — file list and hashes
• browser/entry.js — search and move picker
• the ONNX net named in that manifest

Use

Point a chess-gpt-compatible runner at burrowdweller/mini-chessformer-v1. It calls loadPackage → newGame → chooseMove({ history, legalMoves }) and must return one of those legal moves.

The net is small on purpose. Strength comes from searching at move time.

Source: junisbuilding/chessdb