Counting cards is a skill that is employed by gamblers of card games to realize a benefit by tracking cards that have been dealt. This gives the player an idea of the value of cards, which have to be dealt with. Counting cards is a technique that has more use in chemin de fer than in other card game.

In vingt-et-un, a player is at an advantage when the remaining deck contains "big value cards." High cards can be 10s or aces. The card counter in the gambling hall uses such circumstances by making bigger wagers, as and when they occur. Most knowledgeable players use the composition of the shoe to change their overall plan. Amateur gamblers sometimes will have difficulty while performing rapid counting and may be subject to errors, when it comes to dealing with dealt decks of cards. Twenty-one card counting is an industry on its own. Millions are won or squandered, both by the players and the gambling halls, based on card counting techniques in use.

Computing has made its presence known on counting cards too, with improved devices impacting the complete process. Old guard gamblers however vow that a more complicated card counting approach is more subject to blunders, evening out the extra accuracy enabled by the use of computers. One can dig up many tactics for vingt-et-un card counting by visiting net pages dedicated to black jack. With the game growing in acceptance in gambling dens all over the globe, there are better schemes being developed every other day. One can discover easily thousands of Web sites providing you tips on card counting and the across the board plan to earn money playing 21.