Extreme Chess is a chess game based on the famous Fritz chess engine. The main drew is the ability to compete against the engine in game, but a detailed analysis is also provided for every move. Tournament conditions are simulated through a clock. The game contains a database of 50,000 games annotated by chess grandmasters. There are search options and filters for the games, to look up games based on the player, tournament year, annotator, ranking and more. There is an option to expand the database further through an internet connection.