Blackjack Helper FAQ

Basic strategy is a mathematically optimal set of decisions for every possible hand combination in blackjack. It tells you whether to hit, stand, double down, split, or surrender based on your cards and the dealer's upcard. Following basic strategy reduces the house edge to approximately 0.5%.

Our calculator uses the same mathematically proven basic strategy tables that professional players use. The probabilities and expected values are calculated using standard probability theory and verified against industry-standard blackjack simulators. The results assume standard rules - always check your table's specific rules.

Expected Value represents the average amount you'll win or lose per unit bet over the long run. An EV of +0.10 means you'll profit $0.10 on average for every $1 bet. A negative EV means you'll lose money on average. The optimal play is always the one with the highest EV.

For most players, yes. Basic strategy minimizes the house edge without requiring card counting. The only exception is if you're counting cards, in which case you might deviate based on the true count. Check out our Strategy Guide for complete charts and advanced deviations.

A soft hand contains an Ace counted as 11 (e.g., A-6 = soft 17). You can't bust by hitting a soft hand. A hard hand either has no Ace, or the Ace must be counted as 1 to avoid busting (e.g., 10-7 = hard 17, or 10-5-A = hard 16). Soft hands allow more aggressive play.

Always split Aces and 8s. Never split 10s or 5s. For other pairs, it depends on the dealer's upcard - our strategy charts show exactly when. The key principle: splitting turns one bad hand into two potentially winning hands.

Card counting is not illegal - it's using your brain to gain an advantage. However, casinos are private businesses and can ask you to leave or ban you from playing blackjack if they suspect you're counting. Online casinos shuffle after every hand, making counting impossible.

The dealer's advantage comes from players acting first. If you bust, you lose immediately - even if the dealer would have busted too. This 'double bust' rule is the primary source of the house edge. Basic strategy minimizes this disadvantage.

Almost never. Insurance has a 7.7% house edge - one of the worst bets in the casino. The only exception is when card counting and the true count is +3 or higher, at which point insurance becomes mathematically favorable.

Look for games with: dealer stands on soft 17, 3:2 blackjack payout (not 6:5), double after split allowed, late surrender available, and fewer decks. A single-deck game with good rules can have a house edge under 0.3%.

For statistical significance, simulate at least 10,000 hands. This smooths out short-term variance and gives reliable results. Try our blackjack simulator - it runs quickly and you can test up to 100,000+ hands for accurate data.

You can use the knowledge, but not the app directly at the table - casinos prohibit electronic devices during play. The goal is to memorize basic strategy using our strategy charts and practice with the simulator until the correct plays become automatic.