Spanish 21 is blackjack played with the tens taken out. Each deck has 48 cards instead of 52: the jacks, queens and kings stay, but the four pip tens go. Fewer ten-value cards means fewer blackjacks and fewer strong doubles for you, so the game hands back value elsewhere: your 21 always wins, you can surrender late, double on any number of cards, and certain 21s pay a bonus. Whether the trade is good for you depends on two lines in the table's info screen.
On this page
Spanish 21 rules in short
The rule set below is the one Wizard of Odds describes as standard. Wikipedia lists the same, and notes that the game is owned by Masque Publishing; copies dealt without a licence often run under the name "Spanish blackjack".
- Six or eight Spanish decks of 48 cards, dealt from a shoe or a continuous shuffler.
- A player 21 always wins, and a player blackjack beats a dealer blackjack. Blackjack pays 3:2.
- Late surrender is allowed.
- Doubling is allowed on any number of cards, and after a split.
- Aces can be re-split, and you may usually hit and double after splitting them.
- Double down rescue: after a double you may surrender and lose only the original bet.
- Variable lines: the dealer may hit or stand on soft 17, and some tables allow you to redouble.
The bonus pay table
| Hand | Pays |
|---|---|
| 21 with five cards | 3:2 |
| 21 with six cards | 2:1 |
| 21 with seven or more cards | 3:1 |
| 6-7-8 or 7-7-7, mixed suits | 3:2 |
| 6-7-8 or 7-7-7, same suit | 2:1 |
| 6-7-8 or 7-7-7, all spades | 3:1 |
None of these bonuses pays on a doubled hand. Land-casino versions add a fixed super bonus for suited 7-7-7 against a dealer 7; Wizard of Odds puts its value at about 0.03 points of edge in a six-deck game, too small to chase.
The maths: what removing the tens costs
Start with the deck. A standard deck has 16 ten-value cards out of 52, or 30.8%. A Spanish deck has 12 out of 48, or 25.0%. That one change runs through every hand.
Blackjacks get rarer. The chance of a natural is 2 × (aces ÷ cards) × (tens ÷ remaining cards):
| Shoe | Classic deck | Spanish deck |
|---|---|---|
| Six decks | 2 × 24/312 × 96/311 ≈ 4.75% | 2 × 24/288 × 72/287 ≈ 4.18% |
| Eight decks | 2 × 32/416 × 128/415 ≈ 4.75% | 2 × 32/384 × 96/383 ≈ 4.18% |
You lose about 0.57 naturals per hundred hands. The 3:2 premium on those hands alone is 0.57% × 0.5 ≈ 0.3 points of stake. Add every other effect of a ten-poor deck, and Wikipedia puts the full cost of removing the tens at roughly 2%. The liberal rules and bonuses win most of that back.
Insurance gets far worse. Insurance pays 2:1 when the dealer's hole card is a ten. Under an ace in an eight-deck Spanish shoe, 96 of the 383 unseen cards are tens: 25.1%. The expected result is 2 × 0.251 − 0.749 ≈ −0.248, so you lose about 24.8% of every insurance chip; Wikipedia gives 24.7%. In a classic eight-deck shoe the same bet costs about 7.5%, as our insurance and side bets page works out.
Spanish 21 house edge vs a classic table
The sources give these edges for Spanish 21, before the super bonus and with a strategy built for the game:
| Rule set | House edge |
|---|---|
| Dealer stands on soft 17 | 0.37% (6 decks) to 0.40% |
| Dealer hits soft 17, redoubling allowed | 0.42% to 0.45% (8 decks) |
| Dealer hits soft 17, no redoubling | 0.76% to 0.80% (8 decks) |
| No drawing to split aces | about +0.29 points on top |
Set them against the classic rule set most online tables use: six to eight decks, 3:2, dealer stands on soft 17, double after split. That costs about 0.45%, about 0.65% if the dealer hits soft 17, and about 1.85% if a stand-on-17 table pays blackjack at 6:5. The full price list sits on our house edge page.
What that means over 500 hands at $10, or $5,000 staked:
| Table | Edge | Expected cost |
|---|---|---|
| Spanish 21, stands on soft 17 | about 0.38% | about $19 |
| Spanish 21, hits soft 17 with redoubling | about 0.42% | about $21 |
| Classic 3:2, stands on soft 17 | about 0.45% | about $22.50 |
| Classic 3:2, hits soft 17 | about 0.65% | about $32.50 |
| Spanish 21, hits soft 17, no redoubling | about 0.78% | about $39 |
| Classic 6:5, stands on soft 17 | about 1.85% | about $92.50 |
So the honest verdict: a stand-on-17 table with the Spanish deck is a slightly cheaper game than a good classic table, a hit-17 table without redoubling is a slightly dearer one, and both beat any 6:5 game by a wide margin.
Play live and RNG blackjack with crypto.
How it plays on a phone
Online versions are RNG tables, and they come under several names. Wizard of Odds lists Pirate 21 from Betsoft, Blackjack Exchange and Bahama Bonus Blackjack among them, so search the lobby for more than one title. On a small screen, three things are worth checking before the first hand:
- The info screen. Find the soft 17 line, whether redoubling is allowed and whether you can draw to split aces. Those three lines move the edge by up to about 0.7 points.
- The bonus table. Confirm the card-count bonuses are there; a "Spanish deck" game without them keeps the cost of the missing tens and returns little.
- The extra buttons. Doubling after a hit and surrender after a double appear as options mid-hand. Tap slowly: the buttons shift as the hand grows.
RNG tables deal fast, so the cost per hour follows the hands you play, not the clock. Our blackjack app page covers phone play in general.
Mistakes Spanish 21 players make
- Playing the classic chart. A ten-poor shoe weakens your doubles, and the card-count bonuses add value to hands of five cards or more, so some decisions differ. The edges above assume a strategy built for this game; playing the classic basic strategy chart instead gives part of that back.
- Doubling away a bonus. Double a four-card hand and a fifth card that makes 21 pays even money, not the 3:2 bonus. Count your cards before you double late in a hand.
- Taking insurance. At about 24.7% it is the most expensive bet on the table.
- Ignoring the soft 17 line. It is the difference between a game cheaper than classic blackjack and one dearer than it.
- Surrendering by habit. Surrender is worth using, but only on the right hands. Our guide to blackjack surrender lists them for classic tables.
Where to play
- 1
Vave
4.9/590 coins in the cashier: BTC, ETH, USDT, LTC, DOGE, TON.
Latcas B.V. · since 2022 · Licence Curaçao OGL/2024/1676/0905 · 90 coins: BTC, ETH, USDT, LTC · Sportsbook on the same account
- 2
BC.Game
4.2/5150 coins in the cashier: BTC, ETH, XRP, LTC, TRX, USDT.
Operating company not stated · since 2017 · Licence Anjouan ALSI-202410011-FI1 · 150 coins: BTC, ETH, XRP, LTC · Provably fair originals · Sportsbook on the same account
- 3
Rocketpot
4.9/513 coins in the cashier: BTC, ETH, LTC, DOGE, BCH, XRP.
Danneskjold Ventures B.V. · since 2018 · Licence Curaçao 1668/JAZ · 13 coins: BTC, ETH, LTC, DOGE · Withdrawal cap $5,000 per month (clause 11.5) · ID check above $2,500 (clause 11.4) · Sportsbook on the same account
- 4
BitStarz
4.5/5Coin list not read from the cashier yet.
Gareton B.V. · Licence Curaçao OGL/2024/165/0185 · Provably fair originals
- 5
Stake
4.3/5Coin list not read from the cashier yet.
Medium Rare N.V. · Licence Curaçao OGL/2024/1451/0918 · Provably fair originals · Sportsbook on the same account
Ordered by the number of coins in each casino's cashier, most first.
These crypto casinos all run blackjack lobbies. Our records for them do not list which variants each lobby carries, so open the table games section and search for Spanish 21 and the other names above before you deposit for this game in particular. If it is missing, a classic 3:2 table that stands on soft 17 costs almost the same.
Questions and answers
What is the difference between Spanish 21 and blackjack?
Spanish 21 is dealt from 48-card decks with the four tens removed. In return, a player 21 always wins, late surrender and doubling on any number of cards are standard, and certain 21s pay bonuses.
Is Spanish 21 better than regular blackjack?
It depends on the soft 17 line. With the dealer standing on soft 17 the edge is around 0.4%, a little below a good classic table. With the dealer hitting soft 17 and no redoubling it rises to around 0.8%, which is worse.
Can I use a normal basic strategy chart for Spanish 21?
No. The missing tens and the card-count bonuses change some hitting and doubling decisions. The quoted house edges assume a strategy built for this game.
Should I take insurance in Spanish 21?
Never. With fewer tens in the shoe the bet carries a house edge of about 24.7%, more than three times the edge of insurance in a classic shoe.
Do the 21 bonuses pay after a double?
No. The five-, six- and seven-card bonuses and the 6-7-8 and 7-7-7 bonuses are not paid on a doubled hand, which is why doubling is not automatic in this game.