Blackjack Basic Strategy Chart
Basic strategy is the mathematically best way to play every blackjack hand based on your cards and the dealer’s upcard. It doesn’t guarantee wins — it minimizes the house edge.
What is basic strategy?
Basic strategy is a set of decisions (hit/stand/double/split/surrender) proven by math and simulation to be optimal over the long run.
Why it works
Blackjack is one of the few casino games where your choices affect the expected outcome. Basic strategy avoids costly mistakes (like standing too often or splitting the wrong pairs).
Mini “core rules” (quick version)
- Always split Aces and 8s (in most rule sets).
- Never split 10s.
- Double 11 against most dealer upcards (depends on rules).
- Stand on hard 17 or more.
For the full context and rules, see Blackjack Strategy 101.
Printable chart note
Charts vary slightly by rules (dealer stands on soft 17 vs hits, number of decks, surrender allowed). If you play online, check the game rules and use the matching chart.
Common mistakes that increase the house edge
- Taking insurance (almost always negative EV)
- Standing on stiff hands (12–16) too often
- Splitting 10s because “it feels strong”
- Chasing losses with bigger bets
FAQ
Does basic strategy guarantee I’ll win?
No. It reduces the house edge, but blackjack still has variance. You can lose in the short term even playing perfectly.
Why do charts differ between games?
Different rules change the math (decks, dealer hitting soft 17, surrender rules), so the optimal decisions change slightly.
Is insurance ever worth it?
In general it’s negative EV for most players. Card counters sometimes take insurance in specific situations.
Related next steps
- Gambling Glossary (quick definitions)
- Gambling Basics 101 (start here)
- Responsible Gambling (play safe)