---
library_name: onnx
tags:
- chess
- chess-engine
- onnx
pipeline_tag: other
---

# minichess-gpt

A small neural chess engine that runs in the browser. It looks at the current board, searches ahead, and plays one legal move.

Full-precision weights. Prefer this when the browser can use a GPU.

## 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/minichess-gpt-final-fp32`. 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](https://github.com/junisbuilding/chessdb)