Jeff is a chess bot coded in java. You can play against Jeff by dowloading this jar file.
Although the code is not in this repository, jeff is also on lichess (https://lichess.org/@/jeff_bot), so feel free to give him a follow. Jeff isnt currently hosted anywhere, so you cant play against him on the website.
The recursive function in the bot uses a minimax algorithm and alpha beta pruning to create a tree of positions stemming from the current position (see fig.1).
At the moment, jeff can beat stockfish level 4 most of the time. It spends around 500 ms per move (your mileage may vary).
