/Obsidian

An UCI chess engine

Primary LanguageC++GNU General Public License v3.0GPL-3.0

Obsidian

A top tier UCI chess engine written in c++, that I started developing in april 2023.

As of 18 July 2024, Obsidian is the 3rd strongest engine at 10+1s, after Stockfish and Torch. (Ipmanchess rating 3549)

Neural network

Obsidian evaluates positions with a neural network trained on Lc0 data.

Credits

  • To Styxdoto (or Styx), he has an incredible machine with 128 threads and he has donated CPU time
  • To Witek902, for letting me in his OpenBench instance, allowing me to use massive hardware for my tests
  • To fireandice, for training the neural network of Obsidian 9.0
  • The neural network of obsidian is trained with https://github.com/jw1912/bullet