<human>:  Why did Kasparov lose the chess game between Kasparov and Anand?
<bot>: Kasparov lost because he made a mistake. He played a pawn to the wrong square. When a player makes a mistake, it is called a'misprest'. Misprests happen all the time in chess, but they are not usually a big deal. In fact, it is possible to win a game by making a few misprests!