I have a chess computer program and for a while I used it to train for chess tournaments. I am not sure it was ever helpful in that regard. Today everyone seems to be all Fritzed out and instead of analyzing chess problems for themselves they seem to just put the problem in Fritz and that is the end of thinking. If Fritz says move the bishop here or the queen there, then that is considered like being what God says. No one questions it, that is my point!