Why Does Card Counting Work in Blackjack?

Blackjack is one of the most popular casino games around the world. It’s a game that requires both skill and luck, and it’s always a thrill to see who will come out on top.

One strategy that many players use is card counting. But why does card counting work in blackjack? In this article, we’ll explore the answer to this question in detail.

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The Basics of Blackjack

Before we dive into card counting, let’s first review the basics of blackjack. The game is played with a deck or multiple decks of cards, and the goal is to have a hand value closer to 21 than the dealer without going over. Each card has a point value: numbered cards are worth their face value, face cards (jacks, queens, kings) are worth 10 points each, and aces can be worth either 1 or 11 points depending on what benefits your hand more.

The House Edge

The house edge is a term used to describe the percentage of each bet that goes to the casino over time. In blackjack, the house edge varies from casino to casino but typically ranges from 0.5% to 1%. This means that over time, for every $100 bet at a blackjack table with a house edge of 1%, the player can expect to lose $1.

Card Counting Defined

Card counting is simply keeping track of the cards that have been dealt so you can adjust your betting strategy accordingly. The idea behind card counting is that when there are more high cards (10s and face cards) left in the deck(s), it favors the player because they are more likely to get blackjack or win by having higher hands than the dealer.

How Card Counting Works

When playing blackjack with one deck of cards, there are only 16 ten-value cards (10s and face cards) out of 52. This means that there is roughly a 31% chance of getting a ten-value card on any given hand. When the deck is rich in ten-value cards, the player has an advantage because they are more likely to get a blackjack (an Ace and a ten-value card) or win with higher hands than the dealer.

PRO TIP:Card counting works in Blackjack because it tracks the ratio of high cards (10s, face cards, aces) to low cards (2-6) left in the deck. When more high cards are left in the deck, it gives the player an advantage because they are more likely to receive a blackjack, and when more low cards are left in the deck it gives the dealer an advantage because they are less likely to bust. Keeping track of the ratio of high to low cards can give you an edge when playing Blackjack.

The player keeps track of the cards by assigning them point values. For example, high cards (10s and face cards) are assigned a value of -1, while low cards (2s through 6s) are assigned a value of +1. The remaining cards (7s, 8s, and 9s) are considered neutral and have no point value.

The player then keeps a running count in their head as each card is dealt. If the count is positive, it means that there are more high cards left in the deck(s), which favors the player. If the count is negative, it means that there are more low cards left in the deck(s), which favors the dealer.

The Importance of Deck Penetration

Deck penetration refers to how many cards are dealt before the dealer shuffles the deck(s). The deeper into the deck(s) you can go before shuffling, the more accurate your count will be. For example, if only one deck out of six is used for each hand and all six decks are shuffled after each hand, there’s no point in counting cards because there’s no way to gain an advantage.

Legalities of Card Counting

Card counting is not illegal but casinos frown upon it because it gives players an edge over them. Casinos have taken measures to deter card counters such as using multiple decks of cards or shuffling more frequently.

The Bottom Line

Card counting works in blackjack because it allows players to adjust their betting strategy based on how many high-value cards are left in the deck(s). It’s important to note that card counting is not a foolproof strategy and takes a lot of practice and concentration.

Additionally, casinos have taken measures to counteract card counting, so it’s not a guaranteed way to win. However, when done correctly, card counting can give the player an advantage over the house and increase their chances of winning in blackjack.