fen

A chess library for Python, with move generation and validation, PGN parsing and writing, Polyglot opening book reading, Gaviota tablebase probing, Syzygy tablebase probing, and UCI/XBoard engine communication

PyChess - a chess client for Linux/Windows

chess library for legal move generation, FEN/PGN parsing and more

Chess and chess variant rules and operations in TypeScript

A python script that can annotate chess games in pgn file with static evaluation or search score of an engine, can annotate an epd file with acd, acs, bm, and ce opcodes, can test engine with epd test suite and can generate chess puzzles.

Programming language made up of chess games

C# chess library containing a complete data structure and move generation.

Chess Diagram React Component

Takes PGN as input and returns FEN

Accepts FEN, PGN or array data for chess board and generates PNG or buffer.

Predict live chess games into FEN notation.

Go chess engine, AI, cli interface, and websocket client ♞

EPD opening book generation and filtering for chess and chess variants

React component that parses pgn html elements in order to create interactive pgn viewers

Search, manipulate and get informations on chess openings

Generate Forsyth-Edward notations from chess board images

Extracts FEN of a specific move on a PGN game

Chessboard Widget for Flutter

opening books for chess variants in EPD format for engine testing and tuning, generated with https://github.com/ianfab/bookgen. Used for https://github.com/ianfab/fishtest.

Minimalistic Chess Engine

Chess piece movement validator, designed to work entirely from a FEN position.

Lightweight and fast chess framework written in Swift.

Chess engine and GUI (1999–2006)

A CECP amateur chess engine

Fischer random chess start positions

Chess written in functional way using Scala language

Chess FEN (Forsyth-Edwards Notation) positions analyzer. Having FEN as input helps to identify, e.g. how many pieces left on the board

Java based chess puzzle game with mate in one problems