Counting cards is an ability that is used by players of card games to realize a benefit by following cards that have been dealt. This gives the gambler an idea of the value of cards, that have to be dealt with. Card counting is a technique that has more use in chemin de fer than in any other card game.

In twenty-one, a player is at an advantage when the remaining deck houses "big value cards." High cards could be faces and aces. The card counter in the gambling hall brings into play such circumstances by making larger bets, as and when they happen. A good many experienced players use the composition of the shoe to alter their overall tactic. Inexperienced gamblers on occasion experience difficulty while trying fast card counting and may be subject to mistakes, when it comes to dealing with dealt cards. Black jack card counting is an enterprise on its own. Millions are made or squandered, both by the players and the casinos, depending on card counting schemes in use.

Technology has made its presence known on card counting too, with enhanced computing power affecting the entire process. Long-established players however vow that a card counting system of greater complexity is more prone to breakdown, canceling out the extra accuracy allowed by the application of computers. One can dig up a lot of tactics for blackjack card counting by visiting net resources devoted to blackjack. With the game growing in appeal in casinos around the globe, there are newer game plans coming up every other day. One can find at least thousands of net sites sharing with you tricks on card counting and the overall tactic to earn money playing twenty-one.