count cards

In casino card games, to use a system of determining the remaining high- and low-value cards in a deck in order to help one determine whether the player or the dealer is likely to have the advantage in the next hand. A lot of casino dealers learn how to count cards in order to spot players who are trying to do it. I don't think I'm good enough at math to count cards. Wait, it's legal to count cards? Then why doesn't everyone do it?

counting cards

A counting strategy used in casino card games to help one to determine whether the player or the dealer is likely to have the advantage in the next hand. A lot of casino dealers train in counting cards in order to spot players who are trying to do it. I don't think I'm good enough at math for counting cards. Wait, counting cards is legal? Then why doesn't everyone do it?