Card counting is a skill which is employed by players of card games to achieve an advantage by following cards that have been played. This gives the player a notion of the sum of cards, that need to be dealt with. Counting cards is a skill that has more use in chemin de fer than in other card game.

In blackjack, a player has an advantage when the remaining deck holds "big value cards." Big value cards could be faces and aces. The card counter in the gambling den takes advantage of these situations by placing larger wagers, as and when they happen. Many experienced gamblers use the composition of the deck to change their overall strategy. Inexperienced players on occasion experience difficulty while performing rapid card counting and might be prone to mistakes, when it comes to handling dealt cards. 21 card counting is an industry on its own. massive amounts of money are won or lost, by both the players and the gambling dens, based on card counting tactics in play.

Technology has made its impact on card counting too, with enhanced computing power affecting the complete process. Long-standing players however argue that a more complex card counting system is more prone to blunders, negating the extra accuracy enabled by the use of computers. Anyone can locate many tactics for black jack card counting by going net resources dedicated to vingt-et-un. With the game growing in acceptance in gambling halls around the world, there are better plans being created every other day. One can discover at least hundreds of Web sites providing you tips on counting cards and the all-around tactic to make profit playing twenty-one.