Blackjack is the casino game with the lowest house edge — and 345f offers the best conditions in the Brazilian market to make the most of it. With RTP of up to 99.5%, live tables with dealers in Portuguese, classic blackjack, VIP, turbo, and multihand, you have everything you need to play with confidence and strategy.
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From classic to live dealer — pick the table that fits your style
The classic version with Vegas rules. Dealer stands on 17, you can double down on any two cards and split pairs.
Real dealer, HD camera, and live chat in Portuguese. Join the table with players from across Brazil in real time — no waiting.
Exclusive tables with high betting limits — from R$ 500.00 to R$ 50,000.00 per hand. For players who prefer high-stakes play.
Up to 30 hands per minute, no waiting on the dealer and no lengthy animations. Perfect for experienced players who want speed.
Play up to 5 hands at the same time against the dealer. More action and more winning opportunities every round at 345f.
No player limit per table. Everyone bets on the same dealer hand at the same time — perfect for peak hours at 345f.
See how the game works before creating your account at 345f
Educational simulation. No real money involved. To play for real, sign up at 345f.
The strategy table that cuts the house edge to under 0.5% — learn it for free right here
This table is a basic strategy reference for blackjack with 4–8 decks, dealer stands on hard 17. Values may vary depending on the specific rules of each table at 345f.
Among all casino games available in Brazil, blackjack stands out as the one that offers the best balance between entertainment and real profit potential. At a well-configured table with basic strategy applied correctly, the house edge drops below 0.5% — meaning that for every R$ 100.00 wagered, the expected loss is less than R$ 0.50. That's why blackjack draws the more analytical players: those who want more than just pressing a button and hoping for the best.
The 345f understands this type of player and offers a full range of blackjack variants to suit everyone from beginners to advanced strategy players. Classic Blackjack is the starting point — straightforward rules, 99.5% RTP, and bets from R$ 1.00. Live Blackjack puts you face to face with a real dealer, streamed in high definition from the studios of the world's top providers, with live chat interaction and card history visible on screen.
For players who value speed, the Turbo Blackjack at the 345f delivers exactly that: no lengthy animations, no waiting on other players, and a pace that can reach up to 30 hands per minute. It's the go-to choice for players who have already mastered basic strategy and want to maximize the number of decisions per session. On the other end of the spectrum, Multihand Blackjack lets you play up to five hands simultaneously against the same dealer — multiplying both the action and the need for focus and bankroll control.
Something many players overlook: blackjack rules can vary quite a bit from table to table, and those differences have a direct impact on RTP. At the tables of the 345f, you'll find the rules for each variant clearly laid out — whether the dealer hits or stands on soft 17, whether doubling after splitting is allowed, whether insurance is available and under what conditions. This information is visible before you sit down, so you can always make an informed decision.
Basic blackjack strategy is no closely guarded secret — it was worked out mathematically and is publicly available, including in the chart that 345f presents on this page. The idea is straightforward: for every possible combination of your cards and the dealer's upcard, there is a mathematically correct action that minimizes your expected loss over time. Memorizing this table takes a few hours of practice, but the impact on your results is significant.
Another key concept for blackjack players at the 345f is bankroll management. Even with perfect basic strategy, losing streaks will happen — that's statistically inevitable. The difference between a player who walks away up and one who walks away down often has nothing to do with the cards dealt, but with how each managed their money throughout the session. A widely used rule of thumb is to never bet more than 2% of your available balance on a single hand, which ensures you can absorb a losing streak without wiping out your bankroll.
The experience of playing blackjack on mobile through 345f is just as good as on desktop. The interface is optimized for smaller screens, with buttons large enough to prevent mistaps and fast load times even on 4G. For Live Blackjack specifically, the HD stream automatically adjusts to your connection quality, keeping the game running smoothly when it matters most.
As for payments, 345f delivers the standard Brazilian players expect: Pix as the primary method, with deposits credited in seconds and withdrawals processed in under 5 minutes. For those who prefer other options, boleto bancário, credit and debit cards, PicPay, Mercado Pago, and TED bank transfers through major banks like Nubank, Itaú, Bradesco, and Banco do Brasil are all available. The minimum deposit is R$ 20.00, and the 100% welcome bonus can go up to R$ 500.00 for new accounts.
The 345f protects your personal data in compliance with the LGPD (General Data Protection Law). Your data is never sold or shared without your consent. All transactions and game sessions are protected by 256-bit SSL encryption. By using the platform, you agree to our Privacy Policy. Questions? Contact us at contato@345f.best.
Minimum deposit R$ 20.00. Withdrawal via Pix in under 5 minutes, no fees.
Set deposit, session, and betting limits in your 345f account panel. Blackjack is entertainment — play in control.
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Select the type of blackjack — classic, live, VIP, or turbo — and set your bet amount.
Apply basic strategy, build up your winnings, and request a withdrawal via Pix — done in minutes.
Get the basics down before you sit at the table
Get as close to 21 as possible without going over, with a higher total than the dealer. Blackjack (Ace + 10-value card) pays 3:2.
Number cards (2–10) are worth their face value. J, Q, and K are worth 10. An Ace is worth 11 or 1, whichever works better for your hand — this is known as a "soft" hand.
Request an additional card from the dealer. You can keep hitting as many times as you like, but if you go over 21 (bust), you lose the round immediately.
Signals that you are satisfied with your current hand and do not want any more cards. The dealer then plays their own hand according to the table's fixed rules.
Double your original bet in exchange for receiving exactly one more card. Especially powerful when you hold 10 or 11 and the dealer is showing a weak card.
When you're dealt two cards of the same value, you can split them into two separate hands, doubling your bet. Always split Aces and 8s — that's the golden rule.
What separates players who walk away up from those who walk away down
Memorizing the basic strategy chart is the single most important step. It brings the house edge down to under 0.5% — forget gut feelings and play the math.
When the dealer shows an Ace, the table offers insurance against blackjack. Mathematically, this side bet works against the player — basic strategy never takes insurance.
Keep your bets between 1% and 2% of your available balance per hand. This keeps you in the game through inevitable losing streaks without putting your bankroll at risk.
Decide before you start how much time and money you're willing to spend. At 345f, you can set limits directly from your account dashboard to stay in control.
Always prefer tables where blackjack pays 3:2 instead of 6:5. That seemingly small difference significantly reduces your RTP over many hands.
Before betting real money, use the simulator on this page to get a feel for the game flow and practice basic strategy with zero risk.
Get your questions answered before you sit down at the table
Create your account now, deposit R$ 20.00 via Pix, and get a 100% bonus on your first deposit. Classic, live, VIP, and more — all waiting for you.
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