Variants

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

10 of Clubs6 of Hearts

What is 21 Burn Blackjack?

21 Burn Blackjack is a blackjack variant with one extra choice: after seeing your first two cards and the dealer's up-card, you may pay a side wager to burn — throw away — your second card and take a new one. It is found in some land-based casinos and in online versions from several game studios.

Everything else plays like the blackjack you know: same card values, same goal, same hit, stand, double and split. If you need a refresher, start with how to play 21.

You10 of Clubs6 of Hearts16
Dealer10 of SpadesFace-down cardShows 10
Hard 16 against a 10 — the classic hand you would love to redraw. In 21 Burn Blackjack, you can.

The rules

Decks6
Blackjack paysEven money (1:1) — not 3:2
Dealer soft 17Hits (H17)
Double downAny first two cards, including after a split
SplittingOnce only
SurrenderNot offered
Burn wagerExactly half your original bet; original two-card hand only, never after a split
Burn wager pays7 to 1 if the new card is the Ace of Spades, 2 to 1 for any other Ace, loses otherwise

Typical rules for the game. 21 Burn Blackjack is a proprietary game and versions differ — check the table card or the game's help screen before you play.

How the burn works

  1. Bet and receive your hand as normal: two cards for you, one up-card for the dealer.
  2. Decide whether to burn. To burn, place a burn wager of exactly half your main bet.
  3. Your second card is discarded and replaced with the next card from the shoe. Your first card always stays.
  4. The burn wager is settled on the new card: it wins 7 to 1 on the Ace of Spades, 2 to 1 on any other Ace, and loses on everything else.
  5. Play the new hand as normal — hit, stand, double or split. An Ace and a ten-card made by burning still counts as a blackjack.

A burn, step by step

You bet $20. You are dealt a 10 and a 6 against a dealer 10 — a hand that loses most of the time whatever you do.

You10 of Clubs6 of Hearts16
Dealer10 of SpadesFace-down cardShows 10
Before: hard 16. You place a $10 burn wager, and the 6 is discarded.
You10 of Clubs9 of Diamonds19
Dealer10 of SpadesFace-down cardShows 10
After: the new card is a 9. You now hold 19 and stand. The burn wager loses ($10), but your $20 main bet has gone from a heavy underdog to roughly an even fight.

Had the new card been an Ace, you would have had blackjack and won 2 to 1 on the burn wager. Had it been a 5, you would be back on a stiff 15 and down the $10.

What the burn costs

1:1

Blackjack payout

Even money instead of 3:2 — the way the game pays for the burn option.

+2.3%

Cost of 1:1 blackjack

What an even-money blackjack adds to the house edge in standard blackjack.

−67%

Burn wager on its own

It loses about two-thirds of what you put on it, before counting the better hand it buys.

The −67% follows straight from the payout table. In a six-deck shoe, 1 card in 52 is the Ace of Spades and 3 in 52 are other Aces, so for every $1 burned:

(1 × $7 + 3 × $2 − 48 × $1) ÷ 52 = −$0.67

The house edge of the whole game therefore depends on how well you burn: used on the right hands the burn earns back the cost of the even-money blackjack; used on instinct it adds to it.

When to burn

The burn wager is half your main bet and loses about 67% of it, so each burn costs you about a third of your main bet (½ × 67% ≈ 34%). Burn only when a new second card improves the value of your main hand by more than that. In practice:

  • Keep strong hands. Never burn 19, 20 or 21, a blackjack, or a 10 or 11 you are about to double.
  • The card you keep decides it. Your first card always stays, so a new second card can only build a strong hand when that first card is strong — an 8, 9, 10 or Ace.
  • Mostly against strong dealer cards. A 16 against a dealer 6 is fine to stand on; a 16 against a 10 is worth trying to rescue.
  • Small first cards rarely justify it. With a 7 or less up front, a new card seldom makes a hand strong enough to pay back a third of your bet.
10 of Clubs6 of Hearts
16Against a dealer 10: keep the 10, burn the 6
10 of DiamondsKing of Hearts
20Hard 20: never burn
5 of Spades6 of Clubs
11Hard 11: double instead
3 of Diamonds9 of Spades
12A 3 up front: a new card rarely makes a strong hand

After any burn, play the new hand by normal basic strategy. You can check any resulting hand in the strategy calculator.

Not the same as a "burn card"

In ordinary blackjack, the dealer burns the first card after every shuffle — it goes straight to the discard tray unseen, a practice card games use to make it harder for anyone to have seen or marked the top card. That is a procedure, not a bet, and it makes no difference to your odds: an unseen card is no different from one buried deep in the shoe.

Card counters simply ignore the burn card, since they cannot see it. More on that in how to count cards in 21.

Blackjack variants comparedCompare the house edge and rules of six other blackjack games.

Frequently asked questions

How much does the burn bet cost in 21 Burn Blackjack?

Exactly half of your original bet. You place it after seeing your first two cards and the dealer's up-card.

What does the burn bet pay?

The burn wager itself wins only if the replacement card is an Ace: 7 to 1 for the Ace of Spades and 2 to 1 for any other Ace. Any other replacement card loses the burn wager — its real value is the better hand it may give you.

Does a blackjack pay 3:2 in 21 Burn Blackjack?

No. A blackjack pays even money (1:1). That rule is the single biggest cost in the game, and it is how the house pays for the burn option.

Can you burn after splitting?

No. The burn option is only available on your original two-card hand, before you split.

Is burning ever a good idea?

Occasionally. The burn wager on its own loses about two-thirds of what you put on it, so a burn only pays when it improves your main hand by more than that — mostly when your first card is strong and your second card leaves you with a poor total.

Sources

Rules and figures in this article are taken from Wikipedia:

Practise it on 21Count