Articles

Learn 21, One Hand at a Time

Plain-English guides to blackjack — the rules, card counting and the strategy that actually moves the odds. Every example is a real hand you can try out in our tools.

Ace of SpadesKing of Hearts5 of Diamonds10 of Clubs

Learn to play

Ace of SpadesKing of Hearts How to Play 21 Get closer to 21 than the dealer without going over. That is the whole game — here is everything around it, with real hands for every rule. 4 min read Queen of Spades9 of Diamonds How to Play 21 with a Deck of Cards One deck, two or more people and something to bet with. Here is how to run a fair game of 21 at the kitchen table. 3 min read

Variants

10 of Clubs6 of Hearts How to Play 21 Burn Blackjack Hate your second card? In 21 Burn Blackjack you can pay to throw it away. Here is how the burn works, what it costs, and why most hands should keep the card they were dealt. 4 min read

Card counting

5 of DiamondsKing of Clubs How to Count Cards in 21 Card counting is simple arithmetic: +1, 0 or −1 for every card you see. Here is the whole method, one card at a time. 4 min read

Strategy

Ace of Hearts10 of Spades How to Win at 21 Nobody wins every hand. But 21 is one of the few casino games you can actually get good at — here is what moves the odds, in order of how much it matters. 4 min read Ace of Diamonds7 of Clubs How to Win at Blackjack Without Counting Cards You do not need to count cards to play a near-even game. These eight habits get you most of the way — no memorised running count required. 3 min read

Put it into practice

Play blackjack freeDeal real hands against the dealer, with a live running count you can switch on. Card counting trainerCount a 1–8 deck shoe in seven systems, with speed control and true count drills. Basic strategy trainerDrill every decision until it is automatic, with accuracy scoring. Strategy calculatorEnter any hand and dealer up-card to get the correct play and the reason for it. Basic strategy chartThe full hit, stand, double and split chart for hard hands, soft hands and pairs. Blackjack variants comparedHouse edge and rules for six versions of the game, and how strategy changes in each.
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