Table rules
DAS vs NDAS in Blackjack: How the Rule Changes Strategy
DAS lets you double down after splitting a pair; NDAS does not. That small-looking rule changes several pair decisions and modestly shifts the house edge.
Author
TwentyOne
Table rules
Blackjack Insurance Explained: Is It Ever Worth It?
Blackjack insurance pays 2:1 if the dealer has a ten-value card under an Ace. For a basic-strategy player, the math says decline it—including even money.
Card counting
Running Count vs True Count in Blackjack: Explained
The running count tracks Hi-Lo tags as cards are exposed. The true count adjusts that number for decks remaining, making the same count comparable at different points in the shoe.
Basic strategy
When to Surrender in Blackjack: The Basic Strategy Guide
Surrender looks like giving up, but in the right blackjack hands it saves money. Learn exactly when basic strategy says to surrender—and when it doesn’t.
Table rules
3:2 vs 6:5 Blackjack: Why the Payout Matters
A 3:2 blackjack pays $15 on a $10 bet; 6:5 pays only $12. That small-looking difference adds roughly 1.4 percentage points to the house edge, all else equal.
Basic strategy
When to double down in blackjack
Doubling is one bet, one card, and the highest-EV press in basic strategy. Here is when to double hard totals and soft hands — and when the table rules move the cell.
Card counting
Hi-Lo card counting explained
Hi-Lo assigns +1, 0, or −1 to each rank, then keeps a running count. It is a memory drill with a purpose — not a promise that the shoe is yours.
Basic strategy
Soft hands in blackjack: why the Ace changes the play
A soft total can still take a card without busting. That option is why Ace-7 is not the same decision as hard 18.
Basic strategy
When to split pairs in blackjack
Always split Aces and eights. Never split tens. The rest depends on the upcard — and on whether you can double after split.
Table rules
H17 vs S17: why the dealer’s soft 17 changes your chart
Whether the dealer hits or stands on soft 17 looks like a footnote. It moves several doubles and surrenders — and it is printed on the table for a reason.
Basic strategy
How to read a blackjack strategy chart
Rows are your hand, columns are the dealer upcard, and the letter in the cell is the play. Here is how to use a chart without freezing at the table.
Basic strategy
Blackjack basic strategy: the complete starter guide
Basic strategy is the chart of highest-EV plays for every hand versus every dealer upcard. Here is what it is, what it is not, and how to actually learn it.