schrezraoeder / twitchchess

like twitchslam, for chess

twitchchess

A toy implementation of neural network chess written while livestreaming.

Stream

https://www.twitch.tv/tomcr00s3

Usage

 pip3 install python-chess torch torchvision flask
 # then...
 ./play.py   # runs webserver on localhost:5000

TODOs

• Roll out search beyond 1-ply
• Make trainer multi GPU
• Train on more data
• Add RL self play learning support

Implementation

twitchchess is a simple 1 look ahead neural network value function. The trained net is in nets/value.pth. It takes in a serialized board and outputs a range from -1 to 1. -1 means black is win, 1 means white is win.

Serialization

We serialize the board into a 8x8x5 bitvector. See state.py for how.

Training Set

The value function was trained on 5M board positions from http://www.kingbase-chess.net/