[NEW EXAMPLE] Lc0 - Chess Board Representation

[ainzzorl]

General

• Project name: Lc0 aka Leela Chess
• Example name: Chess Board Representation
• Project home page: https://github.com/LeelaChessZero/lc0
• Programming language(s): C++

Description

Lc0 is a UCI-compliant chess engine designed to play chess via neural network, specifically those of the LeelaChessZero project.

It has a class to represent chess board position.

We already have an article describing chess board representation in Stockfish. Lc0's implementation seems quite a bit more readable and better tested in comparison.

Links

• https://github.com/LeelaChessZero/lc0/blob/4d89f0870dfe3a33cac36c4d9f2850fcb4e0c179/src/chess/board.h
• https://github.com/LeelaChessZero/lc0/blob/4d89f0870dfe3a33cac36c4d9f2850fcb4e0c179/src/chess/board.cc
• https://github.com/LeelaChessZero/lc0/blob/4d89f0870dfe3a33cac36c4d9f2850fcb4e0c179/src/chess/board_test.cc

What makes it interesting

• Uses standard patterns in any chess-related software.
• Very non-trivial.
• Very object-oriented.

Related work

• Existing article about similar topic in Stockfish - https://codecatalog.org/articles/stockfish-board-representation/

Other

N/A