If you’ve ever shuffled a deck of playing cards, you’ve most likely created a unique deck. That is, you’re probably the only person who has ever arranged the cards in precisely that order. Although ...

Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. There are two types: Riddler Express for those of you who want ...

Everyone who has played poker or even Go Fish knows the basics of shuffling cards. There’s the riffle shuffle (combining two halves of a decks and making a bridge), overhand shuffling (quickly ...

Many people should have experienced the situation that 'no matter how many times the cards are shuffled, they don't mix neatly'. Fred Hohmann, who is working on machine learning and interface ...

The whole point of shuffling a deck of cards is to randomize the order of them as best you can. For the best results, you need to give the deck at least seven basic rifle shuffles. Get daily tips, ...