♞ lichess.org: the forever free, adless and open source chess server ♞

lichess.org former mobile application / new one -> github.com/lichess-org/mobile

New Lichess mobile app in Flutter

Mobile/Web chess UI for lichess.org

A bridge between Lichess bots and chess engines

Play chess in the terminal. Rust TUI, Stockfish, Lichess.

Distributed Stockfish analysis for lichess.org

PyChess - a chess client for Linux/Windows

Chess API written in scala. Immutable and free of side effects.

Lichess API documentation and examples

irwin - the protector of lichess from all chess players villainous

An aggregated data set of chess opening names

WebAssembly port of the strong chess engine Stockfish

A Deep Learning UCI-Chess Variant Engine written in C++ & Python :parrot:

A highly customizable way to play chess in your terminal. Play online (via Lichess.org) and offline against the Fairy-Stockfish engine. All Lichess variants are supported.

A Rust library for chess and chess variant rules and operations

The strong open source chess engine Stockfish compiled to JavaScript and WebAssembly using Emscripten

Lichess' websocket server

♟️ A chess engine with alpha-beta pruning, piece-square tables, move ordering, and command-line UI.

It's Lichess, but prettier

Chess and chess variant rules and operations in TypeScript

Opening explorer for lichess.org that can handle all the variants and trillions of unique positions

PGN viewer widget

A free, open-source and modern Chess Variant Analysis GUI for the 21st century

Python client for the lichess API

Generate chess puzzles / tactics from a pgn file

♟ Play chess against real players in your terminal using Lichess

Play lichess in (neo)vim!

A free and open source chess improvement app that combines the power of Lichess and Anki.

Lichess local development using Docker Compose.