Controversy and chess seem to inextricably linked. Here is a free chess playing program called Houdini. The creators claim to be supporting children`s charity.
On the other hand here is a controversy involving a chess playing program called Rybka.
Further reading on the controversy. Free Houdini beats commercial Rybka
1 Timothy 6:10
10 For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.