Today you can buy a $50 program for your laptop computer that likely can beat Kasparov, at least according to published ratings. Weird to me, this meant that people following the just-concluded World Championship Match online could often instantly know more about the state of play than the human champions. Often but not always, as shown by today’s climactic game in which Viswanathan Anand of India won with Black to defeat challenger Veselin Topalov . At Move 40, Anand calculated 11 moves ahead to realize that a position after Move 50 with only a King and three Pawns left for each side would be winning for him. Many computer programs seeing only yea-far for minutes thought Anand’s move was a blunder allowing a draw, causing their owners to express consternation on numerous chat channels and blogs. Thus, sometimes the programs are wrong.