Card counting is a skill which is employed by players of card games to obtain a benefit by tracking cards that have been used. This provides the player a notion of the value of cards, that need to be dealt with. Counting cards is a skill that has more use in vingt-et-un than in other card game.

In twenty-one, a player has an advantage when the remaining shoe houses "big value cards." Big value cards can be faces or aces. The counter in the gambling den brings into play such opportunities by laying larger wagers, as and when they happen. A good many accomplished players use the composition of the deck to adjust their overall plan. Fairly new players at times have problems while performing rapid counting and may be prone to errors, when it comes to handling dealt decks. Blackjack card counting is an enterprise on its own. Millions are made or spent, both by the players and the gambling dens, depending on card counting techniques in play.

Technology has made its impact on card counting too, with refined devices impacting the entire activity. Long-established gamblers however swear that a card counting approach of greater complexity is more prone to problems, evening out the added accuracy permitted by the use of technology. One can dig up a lot of tactics for vingt-et-un card counting by going online pages committed to black jack. With the game increasing in popularity in gambling dens all over the globe, there are newer strategies being developed every other day. One can find at least hundreds of Web pages providing you hints on card counting and the all-around strategy to earn money playing vingt-et-un.