ChessBase 13 is a personal, stand-alone chess database that has become the standard throughout the world. Everyone uses ChessBase, from the World Champion to the amateur next door. It is the program of choice for anyone who loves the game and wants to know more about it. Start your personal success story with ChessBase and enjoy your chess even more.
A chess engine is a computer program that calculates chess position and chess moves. The chess engine decides what moves to make, but typically does not interact directly with the user. Most chess engines do not have their own graphical user interface (GUI) but are rather console applications that communicate with a GUI such as XBoard, WinBoard or glChess via a standard protocol. This allows the user to play against multiple engines without learning a new user interface for each, and allows different engines to play against each other.
ChessOK Aquarium 2012 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and much more. If you already own the Houdini 3 UCI engine and are looking for an appropriate interface, ChessOK Aquarium 2012 is the best you can find. Connect Houdini 3/Houdini 3 PRO UCI to ChessOK Aquarium 2012 - and you have a fully functional product, fully equivalent to Houdini 3 Aquarium or Houdini 3 PRO Aquarium. Play against the computer. Choose from three different strength handicap methods, material handicap or time handicap. You can also just set the ELO level you want to play against!