Tool · Casino · Blackjack

Blackjack strategy
assistant.

Enter your hand and the dealer's upcard. Get the mathematically optimal action — calibrated for South African 6-deck rules. Reduces blackjack house edge to roughly 0.5%, the lowest of any table game in any SA casino.

Strategy Tool

Optimal action

Calibrated for SA 6-deck shoes with dealer stands on soft 17.

Optimal Action

Hit

How the assistant works

Every blackjack basic strategy decision is determined by two factors: your hand total (and whether it's hard, soft or a pair) and the dealer's visible upcard. The mathematically optimal action against every combination has been computed through millions of simulated hands and is the same at every 6-deck dealer-stands-soft-17 table in South Africa.

The assistant gives you the optimal action plus a brief explanation of the reasoning. For deeper understanding of basic strategy — including the full hard hands, soft hands and splitting pairs charts — see our complete blackjack strategy guide.

The five rules most players break

  1. Always split Aces and 8s. Aces give you two starting hands at 11 — the strongest single-card position. 8s break a brutal 16 into two fresh starts.
  2. Never split 10s. 20 is too strong to break. Recreational players sometimes split 10s "because the dealer looks weak". They lose money on it consistently.
  3. Always stand on hard 17 or higher. The bust risk dwarfs any improvement upside.
  4. Never take insurance. The bet has a 7%+ house edge regardless of your hand.
  5. Hit soft 18 against dealer 9, 10 or Ace. 18 feels strong — but against a strong dealer card, it isn't.

Rules this assistant assumes

  • 6 decks (standard at every major SA casino)
  • Dealer stands on soft 17 (S17)
  • Double after split allowed (DAS)
  • Blackjack pays 3:2 (avoid 6:5 tables)
  • Late surrender not available (most SA tables)
  • No re-splitting Aces (most SA tables)

If your specific table differs significantly from these rules, the strategy may differ slightly — typically by 1-2 marginal hands. The vast majority of decisions remain identical regardless.

Continue learning

Common Questions

You asked.

Yes — the strategy is calibrated for the rules used at every major SA casino: 6-deck shoe, dealer stands on soft 17, double after split allowed, blackjack pays 3:2. These are the standard rules at GrandWest, Sun City, Emperors Palace, Montecasino and Suncoast. The strategy reduces house edge to roughly 0.5% — the lowest of any table game in SA. The 6:5 blackjack tables (which exist at some lower-limit tables) require slightly different strategy and are best avoided regardless.

Blackjack basic strategy isn't about winning every hand — it's about minimising long-term losses. Some hands are losing situations no matter what you do (e.g. hard 16 versus dealer 10). The chart's recommendation in those situations is the action that loses the least money over many repetitions. Trusting the strategy on losing hands is just as important as trusting it on winning ones.

No. Basic strategy is mathematically optimal for every hand against every dealer upcard. 'Feeling' the right play is your brain pattern-matching on what is actually random data. The dealer's upcard tells you everything you need to know about expected outcome — and the strategy accounts for that. Players who deviate from basic strategy lose money over time. Period.

Yes — the same basic strategy applies to live-dealer online blackjack at SA-licensed casinos (Hollywoodbets, Betway, Sportingbet) running 6-deck shoes with dealer stands soft 17. RNG (computer) blackjack often uses the same rules; check each game's info panel before playing. The strategy is identical regardless of whether you're playing in-person at GrandWest or online via your phone.