For some time now, I have felt that the time is right to write a book about Computer Chess. Ever since the first attempts at chess pro gramming were made, some twenty five years ago, interest in the subject ha"s grown from year to year. During the late 1950s the subject was first brought to the attention of the public by an article in Scient(fic American, and less than a decade later a chess program was competing in a tournament with humans. More recently, there have been tournaments in which the only participants were computer programs. and when the first World Computer Championship was held...