Basic strategy
Should You Split 3s in Blackjack? The 3-3 Strategy
A pair of 3s is a rule-sensitive blackjack split. Learn when to split 3-3, when to hit instead, and why double after split changes the dealer-2 and dealer-3 decisions.
Topic
Table rules
H17, S17, DAS, surrender, and why the plaque on the table changes the chart.
Basic strategy
Should You Split 4s in Blackjack? The 4-4 Strategy
A pair of 4s is usually a hit, but DAS creates two important exceptions. Learn when to split 4-4 against dealer 5 or 6 and why double after split changes the math.
Basic strategy
Should You Split 5s in Blackjack? The 5-5 Strategy
A pair of 5s looks splittable, but basic strategy treats 5-5 as a strong hard 10 instead. Learn why you should usually double against weak dealer cards and hit against 10 or Ace.
Basic strategy
Should You Split 6s in Blackjack? The 6-6 Strategy
A pair of 6s is one of blackjack’s most rule-sensitive splits. Learn when to split 6-6, when to hit instead, and why double after split changes the dealer-2 decision.
Basic strategy
Should You Split 7s in Blackjack? The 7-7 Strategy
A pair of 7s is worth splitting only when the dealer is vulnerable. Learn when to split 7-7, when to hit instead, and why the dealer’s 7 is the key boundary.
Basic strategy
Should You Split 8s in Blackjack? The 8-8 Strategy
Basic strategy usually says to split a pair of 8s, even against a dealer 10 or Ace. Learn why 8-8 is treated differently from an ordinary hard 16 and the surrender exceptions that matter.
Basic strategy
Should You Split 9s in Blackjack? The 9-9 Strategy
Pair of 9s is one of blackjack’s easiest splitting rules to misremember. Learn why you split against 2–6 and 8–9, but stand against 7, 10, and Ace.
Basic strategy
Blackjack 15 vs 10: Should You Hit or Surrender?
Hard 15 against a dealer 10 is a losing spot, but the correct play still matters. Learn when to surrender, when to hit, and how composition and card counting can change the decision.
Table rules
Does the Dealer Hit on 16 in Blackjack? Dealer Rules Explained
Blackjack dealers must hit every total of 16 or less. Learn the fixed dealer drawing rules, how soft 17 differs, and why your hand never changes the dealer’s required action.
Table rules
Blackjack Table Etiquette: What to Do at a Casino
Blackjack etiquette is mostly about keeping bets clear, using visible hand signals, and letting the dealer control the game. Here’s what to do from buying in to leaving the table.
Basic strategy
Blackjack Soft 18 (A-7): When to Hit, Stand, or Double
Soft 18 looks like a made hand, but A-7 is one of blackjack’s most rule-sensitive totals. Learn when to stand, hit, or double and why the dealer’s upcard changes the best play.
Card counting
Blackjack Deck Penetration: What It Means and Why It Matters
Deck penetration is the percentage of a blackjack shoe dealt before the shuffle. Learn how to calculate it, read the cut card, and understand why it matters so much to card counters.