Baryonyx

Overview

Baryonyx is a work-in-progress UCI-compliant chess engine written in C++, initially based on my previous C engine Nibble. It is a personal project with the goal of learning modern C++ and chess programming.

Features

• Board representation & Move generation
  • Bitboards
    • Magic Bitboards
    • PEXT Bitboards
  • Copy-Make
  • Pseudo-legal Move Generation
  • Zobrist Hashing
• Evaluation
  • Material
  • Texel-tuned Piece-Square Tables
  • Tempo
  • Tapered Evaluation
• Search
  • Negamax with Alpha-beta pruning
  • Iterative deepening
  • Quiescence Search
  • Move Ordering
    • TT move
    • MVV-LVA
    • Killer Moves
    • History Heuristic
  • Transposition Table
  • Principal Variation Search
  • Reverse Futility Pruning
  • Null Move Pruning
  • Late Move Reductions

Building

Since Baryonyx is written in C++23, you'll need a recent version of g++/clang++ (g++ >= 13 / clang++ >= 17) to build it. See compiler-support for reference.

To create a working executable, follow this steps:

1. Clone the repository: git clone https://github.com/IbaiBuR/Baryonyx.git
2. Go to the directory of the repository: cd Baryonyx
3. Run make: make

Note

It is recommended to use clang++ instead of g++, as it usually produces faster binaries. If you prefer to use with g++, you can specify it when running make -> make CXX=g++