Dear Mark: Do card counters today stand a chance against automatic card shuffling machines? – Mel B. Card counters, Mel, have a theoretical advantage between 0.5 and 1.5 percent against the casino.

Shuffling cards is a tricky business. It’s also a lucrative one for gambling casinos. In a game such as blackjack, an astute player can try to memorize the cards already played to have a better chance ...