Fritz

Fritz is a chess program for PC.

It is one of the two best chess programs. The other one is Chessmaster. According to some people. Fritz uses a better engine than Chessmaster.

Gameplay
It has several modes of play:


 * Rated: the matches affect your ELO rating
 * Sparring: the computer gives some advantages. The player can choose different opponents with varying difficulty
 * Friend mode: the computer adapts to the player style