What is Lichess?
Lichess is a free and open-source online chess server that provides a clean interface for players of all levels. It offers a full environment for playing, learning, and practicing chess without advertisements or the need for registration, making it accessible to a wide audience. Players can engage in games against the computer, friends, or random opponents, and participate in arena or Swiss tournaments. The platform also provides many puzzles, tools to learn chess basics, practice coordinates, analyze games, and study openings.