Counting cards is a technique that is used by gamblers of card games to obtain a benefit by tracking cards that have been used. This provides the gambler a notion of the sum of cards, which have to be dealt with. Counting cards is an ability that has more use in 21 than in any other card game.

In chemin de fer, a player is at an advantage when the remaining deck houses "big value cards." Big value cards could be tens or aces. The card counter in the casino brings into play these opportunities by laying larger bets, as and when they occur. Many adept players use the composition of the deck to change their overall strategy. Inexperienced gamblers on occasion experience problems while engaged in fast card counting and might be subject to mistakes, when it comes to handling dealt cards. Twenty-one card counting is a business by itself. Millions are made or squandered, both by the gamblers and the gambling dens, based on card counting tactics in play.

Computing has made its impact on counting cards too, with refined computing power impacting the entire process. Traditional gamblers however attest that a card counting system of greater complexity is more subject to error, negating the increased accuracy allowed by the use of technology. Anyone can locate a lot of strategies for 21 card counting by going web resources committed to vingt-et-un. With the game increasing in appeal in gambling dens around the world, there are newer tactics being developed every other day. One can discover beyond a doubt hundreds of Web pages sharing with you hints on card counting and the all-around tactic to earn profit playing black jack.