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October 9th, 2025
The rules of blackjack: a complete guide to understanding this iconic card game
Blackjack is a legendary card game, available in Belgian casinos and via online blackjack on licensed platforms like Circus Casino. Its simple rules, strategic element, and the suspense of facing the dealer, whether at a classic table or via a live casino, make it a must-play.
The origins of blackjack
Did you know that blackjack was a game played in the 18th century in French casinos? At the time called “Twenty-One”, it was later exported to the United States and evolved with new rules, including a bonus for the Ace + 10 combination, which gave it the name “blackjack”. Today, this classic has modernized thanks to online versions and live dealers.
Objective of blackjack
The goal of blackjack is simple:
To obtain a score that is closer to 21 than that of the dealer, without ever exceeding that number. If either of you exceeds 21, the bet is automatically lost.
Value of the cards
To play well, you need to know the value of each card:
- Numbered cards (2 to 10) are worth their face value.
- All the face cards (jack, queen, king) are worth 10 points.
- The Ace can be worth 1 or 11 points, depending on what benefits the player.
For example:
- If you receive an Ace and a 9, your hand is worth 20 (11 + 9).
- If you then draw a 5, the Ace automatically reverts to 1, for a total of 15.

How a blackjack game works
A game of blackjack always follows the same steps:
- Initial bet: each player places their bet.
- Dealing of cards: the dealer deals two face up cards to each player, and one face up and one face-down card for themselves.
- Player's turn: each chooses their action:
- Hit: request an additional card.
- Stand: keep your current hand.
- Double Down: double your bet and receive only one card.
- Split: if you have two identical cards, you can create two different hands.
- Insurance: against a dealer's Ace, to cover a potential blackjack.
- Dealer's turn: they reveal their hidden card and must hit until reaching at least 17 points.
- Result: your points are compared to those of the dealer to see if you win, lose or tie.
The perfect hand: the blackjack
When your first two cards are an Ace and a 10 (or a face card), you get a blackjack. This combination usually pays 3 to 2, unless specific rules are stated by the casino.

Blackjack variants
Even though the classic version dominates, several variants exist in licensed casinos:
- European blackjack: the dealer only draws their second card at the end of the players’ hands.
- Multihand blackjack: there’s the possibility to play multiple hands in parallel.
- Spanish 21: these are variants with different payout rules.
Before playing, always check the rules displayed by the operator: each table may have slight differences (number of decks, blackjack payout, betting options, etc.).
Practical example
Let's say you bet €10.
You receive a 7 and a 4 (total 11). You decide to double: you add €10 and receive one card, a 9 → total 20.
The dealer reveals 16 and draws… a 7 (total 23). The dealer exceeds 21: you receive €20 in total.
This example illustrates how the rules influence your choices and betting management.

Playing responsibly
Blackjack remains a game of chance: no strategy guarantees a systematic win.
In Belgium, only operators with a license (like Circus Casino) are allowed to offer this game online, to ensure a safe and fair environment.
Here are some tips for responsible gaming:
- Set a budget before you start.
- Take regular breaks.
- Don't try to win back your money after a loss.
- Use the limitation tools offered by licensed websites (deposit limits, betting limits, access limits, etc.).
Blackjack appeals due to its balance between chance and decision. By knowing the rules well, you will enjoy your games more, whether for the simple pleasure of playing or to sharpen your strategic reflexes.
Always remember: play for fun, within your limits.
FAQ – Blackjack rules
Yes, provided you play on a website licensed by the Gaming Commission, like Circus Casino.
You must be at least 21 years old to access landbased or online casinos in Belgium.
Some websites offer "demo" versions with no real stakes, ideal for practice.
In physical casinos, it is not illegal, but establishments can refuse access to players who use it. Online, it is almost impossible because the games are continuously shuffled.



