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Card counting is a strategy used by some skilled blackjack players to gain an advantage over the casino. It involves keeping track of the cards that have been dealt from the deck or shoe to estimate the likelihood of specific cards appearing in future hands. Contrary to a common misconception, card counting itself is not illegal. However, it is often discouraged by casinos, and players who employ this strategy may face countermeasures.
Here's how card counting works:
It's important to note that card counting requires significant practice and skill, and it is not a guaranteed way to win. Casinos have become adept at detecting and countering card-counting efforts. Additionally, some variations of blackjack, such as continuous shuffle machines, make card counting virtually impossible.
Here's how card counting works:
- High-Low System: One of the most popular card counting systems is the High-Low system. In this method, players assign values to cards as they are dealt. Low cards (2 through 6) are assigned a value of +1, neutral cards (7 through 9) are assigned a value of 0, and high cards (10, Jack, Queen, King, and Ace) are assigned a value of -1.
- Running Count: As cards are dealt, players keep a running count by adding or subtracting the assigned values. The running count represents the approximate composition of the remaining cards in the shoe.
- True Count: To make the running count more accurate, players divide it by the estimated number of decks remaining in the shoe. This calculation yields the true count, which accounts for the number of decks yet to be dealt with.
- Betting Strategy: Players use the true count to adjust their bets. When the true count is favorable (i.e., indicates a surplus of high cards in the remaining deck), players increase their bets. Conversely, when the true count is unfavorable, they decrease their bets or play conservatively.
It's important to note that card counting requires significant practice and skill, and it is not a guaranteed way to win. Casinos have become adept at detecting and countering card-counting efforts. Additionally, some variations of blackjack, such as continuous shuffle machines, make card counting virtually impossible.