Our 10 year-old daughter has been diagnosed with ADD. We've been working with psychiatrists and psychologists to help her overcome this disability. At the same time, we've been trying other methods to try and tackle her focus issues. There is no doubt in our minds that our daughter is very intelligent, but we see that focus is an issue. We also think this issue is hereditary - my wife and I experience the same issues that are described in our daughter.
So in discussing these challenges with other parents who's kids have the same issues, we came across a program called Cogmed. We just heard about it last week and I finally got around to going to the website to get more details.
As I was reading some of the user case studies, I found that one user used Cogmed to improve his chess. Not only did it help him improve, he went from placing 26th in a tournament before using Cogmed, to winning the state championship after using Cogmed for a month.