from nytimes.com: Colin Jones has toiled in the cacophonous, windowless, artificially lighted corridors of casinos across the country in an effort to beat the house with math. He has worked to master the art of card counting, long scorned by casino operators, in which players try to gain an advantage over a blackjack dealer by keeping track of all the cards seen, and then adjusting their bets. Now he is selling his tactics to others. On March 24, 10 people from across the country will arrive in Las Vegas and pay $1,500 each for Jones to teach them how to count cards. What those students may not realize is that their teacher belongs to an unlikely subset of blackjack players. Jones is a Christian card counter. Until last year, he and his high school friend from Bible camp, Ben Crawford, ran a group of more than 30 religious card counters. Based in Seattle, the rotating cast of players says it won $3.2 million over five years — all while regularly attending church, leading youth groups and studying theology. But first Jones and his group had to wrestle with the apparent moral paradox: Should Christians be counting cards?