I don't know, but it seems to me the more I try and study Chess the worse I get. In the begining I was just playing with the few people I know that play. I decided to get some Chess engines and practice. I understand all the concepts, but I don't seem to put it all together for some reason. I begin beating the Chess program only because the moves are repetative, so now I am playing online and getting my but kicked! I am not a quitter and I hope to read this one day when I win a fair amount of my games.