How to Count Cards in Blackjack: Card Counting Trainer & Guide

1. 1
   First you need to memorize the assigned values of all cards. - High cards (10, Jack, Queen, King, Ace) count as -1 each - Low cards (2 to 6) count as +1 each - The remaining cards (7 to 9) count as 0
2. 2
   When you press play, the cards will be dealt.
3. 3
   Calculate the overall value of all cards on the table. There is a 40-second time limit. You must add and subtract card values to get a final amount.
4. 4
    Type your answer into the box or use the arrows to select the correct answer.
5. 5
   If you are correct, the game progresses. You will need to continue adding or subtracting from your previous total.
6. 6
   Keep track of your total count as you level up. For example, the answer to Round 2 will be the sum total of the first and the second rounds.
7. 7
   This continues the further you go. So Round 3 will be the sum total of all previous rounds, including the current round.

Why shouldn't I do it?

There are no federal or state laws which consider counting cards to be a criminal act. Providing you're doing it in your head and not using a card counting device or mobile app, there is nothing illegal in this. However, despite the law, it is regarded as cheating. If you are going to attempt to count cards in a casino, we strongly advise you to be cautious. Casinos will come down heavy on suspected card counters. You may be asked to leave the table or even be banned. Beware - your behavior will be closely monitored at all times. Even the best card counters occasionally get rumbled.

Why should I do it?

In a word: winning. Do it right and you can strike gold with one simple, strategic game. Learning to count cards in blackjack can help you win big. Blackjack is a casino game phenomenon worldwide because, as well as being fun, you have a decent chance at pocketing whatever you win. Especially when you know what you're doing… It gets even better when you can flip the odds in your favor, giving you more chances of big wins!

1. 1
   Start by assigning cards a value of either +1 (cards 2-6), 0 (cards 7-9), or -1 (cards 10-Ace).
2. 2
   Keep a running count with each card the dealer pulls a card from the deck, using the values mentioned above.
3. 3
   Providing you keep an accurate count as the cards are dealt, you'll be able to monitor the running value of the cards left remaining in the deck.
4. 4
   After each round, if the count is negative, increase the size of you bet. This is because there will be more low-value cards remaining in the deck. If the count is positive, lower your bet instead.

So how does this create an advantage over the casino? Well, if you're playing blackjack perfectly, the house edge is around 0.5%. If you play perfectly plus master card counting, you are playing with a 1% advantage over the casino! So, it really does pay to start practicing.

Yes, you can count cards playing blackjack online. Although, most online casinos use software that shuffles the cards every time a new hand is dealt, making it a bit tricky. There are some programs you can use which will count the cards for you, but they are generally forbidden to use.

The benefits however mean you can count cards from your own home, without the risk of being caught by the casino as you can if you try to count cards in a land-based casino. You shouldn’t join a land-based blackjack table to count cards until you have practices and feel confident counting cards online. A great way to practice is by using one of our free online blackjack games. Our free games help you perfect your skills without risking losing real money.

If you decide to play for real money online, beware that some sites employ software that shuffles cards almost every time a new hand is dealt. This makes it increasingly difficult to count cards online and win money.

The most basic strategy for beginners is called the Hi-Lo strategy. This is the type that you practice in our simulator.

In this strategy, high cards (10 - Ace, including face cards) are assigned a specific value of -1. Low cards (2 - 6 in any suit) are assigned a +1 value. The remaining cards (7 - 9) count as 0.

This strategy is simple easy to follow for a beginner to get started with card counting while playing online or at a land-based casino.

As the dealer deals a card you make a note in your head of its assigned value. If the card is a ten for example, you count is as -1. If the next card dealt is a three, its assigned value is +1. Now your cumulative total adds up to 0.

The idea is that you do this continuously for every new card dealt, without breaking your sum until the deck is shuffled again. The total is considered the 'running count'.

That's all there is to it. When you keep it simple, the calculations are not too difficult and your mind does not go into overdrive!

1. 1
   Assign a value to each card (+1, 0, or -1)
2. 2
   Keep track and remember the value of the card
3. 3
   Add the cards values to determine the value of the cards in the deck – the Running Count
4. 4
   Bet according to the card count (increase if the count is negative, lower if it’s positive)

Once you've mastered the art of basic Hi-Lo card counting, you are probably done with counting off cards on your fingers. When you want to progress to more complex techniques, you have several options to choose from.

Omega II

The Omega II technique is a 'balanced' system, where you have 0 as base. Bryce Carlson developed this and wrote a book about card counting back in 1992. It is more sophisticated than the classic +1,0 and -1 values.

• 2, 3 or 7 are valued as 1
• 4, 5 and 6 are valued as 2
• 9 is valued as -1
• 10 and all face cards are -2
• 8 and Ace cards are 0

A positive count reflects that more low cards are present in the deck being dealt. A negative count means a large number of high cards are in the deck still.

Wong Halves

The name for this system comes from its creator Stanford Wong. It's considered an advanced strategy on account of its assigned values, some of which are fractions.

• 3, 4 and 6 are valued as 1
• 2 and 7 are valued at 0.5
• 5 is valued as 1.5
• 8 is valued as 0
• 9 is valued as -0.5
• 10, Ace and face cards are -1

Wong Halves is a 'balanced' system, meaning that when a deck is dealt completely, your count should be 0. You can simplify the strategy by doubling up all the values to avoid using fractions altogether.

Group Play

Some card counters make it a team effort. The benefit of this is that multiple decks, on multiple tables, can be counted simultaneously. The team use signals to communicate with one another while avoiding detection. In this way, they can tell hovering players when to join in a hand, and whether to bet big or not.

Multiple Decks

This strategy was employed by a team of students and alumni at MIT to win millions of dollars from multiple casinos for years. Once uncovered, their escapades became the subject of a best-selling book. In 2008, their story became a Hollywood movie called 21.

Counting Multiple Decks

One of the ways casinos try to counteract card counting is by using multiple decks. This in theory makes it harder for card counters to keep track of the running total. If you come up against a dealer using multiple decks in blackjack, you can still use the Hi-Lo strategy. All you need to do is divide the running count by the number of decks remaining. This will give you what is called a 'true count'.

Your true count figure, rather than your running count, dictates your advantage when multiple decks are involved. You must keep an accurate running total to enable you to work out the true count value. For example, if your running total is 5 and there are 2 decks remaining, your true count will be 2.5 (because 5 divided by 2 is 2.5).

Which Strategy is the Best?

The easiest strategy to master is the Hi-Lo approach. For first time card counters it's advisable to start here and see how you get on. As your ability increases, on top of counting you can choose to advance to an alternative blackjack strategy should you feel it necessary. Of course, you need to be 100% confident that you have mastered the game itself before you even attempt card counting. We have got plenty of other tips on playing blackjack which you can employ in your game technique.

At Casino.org, we want to ensure that you are best informed as possible when playing casino games. There are laws which you must consider before practicing card counting.

For example, Nevada state laws prohibit card counting with electronic or mechanical aids such as smartphone apps. You will be arrested if you are caught doing this. Using your own arithmetic skills to keep track of cards is not illegal. Although the legal situation for card counting is quite clear cut, using your head to count cards is still not welcomed at casinos.

Although a casino and its operator cannot prosecute unless you are using a device, they can make your situation very unpleasant if you're caught. Some law firms in the US have specific legal teams and defense attorneys who deal with Las Vegas casino arrests.

Since casino operators are well aware of the practice of card counting, they take measures to keep you from doing so. You will find surveillance cameras whenever you look up. Dealers are often switched when a table is considered 'hot' by a pit boss. Sometimes, the pit boss will get the dealer to force a shuffle once the hand being dealt is over. Online blackjack does not have the same problem, but some software forces random shuffles to counteract this practice.

It is important to be responsible and to respect the rules of the house if you decide to walk into a casino.

• Blackjack's Rise And Fall Shows What Drives Customers Away, Forbes, 2018
• Las Vegas Card Counting Legality, De Castroverde Law Group, 2016
• Card Counting: Cheating or civil right?, The Washington Post, 2014
• How a team of students beat the casinos, BBC News, 2014
• Bryce Carson, Blackjack for Blood: The Card-Counters' Bible, and Complete Winning Guide, 1992 (revised edition 2018)
• 21 (film), Colombia Pictures, 2008