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Blackjack hit or stand on a hard hand cheat sheet. Free slider games. If you're playing a multi-deck game and you have a hard 17, double down instead of taking a hit. You'll need to make some minor tweaks to our strategy, depending on the number of decks and rules you're playing with. San manuel slot winners. Double Blackjack, or what is more commonly known as Double Attack Blackjack, is one of the newest blackjack variants to be found. Double Blackjack has recently made its appearance in online casinos, but the game began in the casinos of Atlantic City. As recently as 2010, Double Blackjack had begun to show up in the Las Vegas casinos as well.
- A double down in blackjack is when you double your original wager after receiving your first two cards. Once the cards have been dealt, you will be given the option to double down if the rules permit. If you win this double down bet you will collect double your original wager. Double Down Blackjack Rules.
- That's a quick blackjack tip that goes without saying. And Double Down After Split is something you really want to have as part of your game – according to various publications, it can add as much as.13% to.
- What Does Double Down Mean in Blackjack? This is another excellent strategy question. On your original two cards, you can double your bet before the dealer gives you another card. You place another bet.
Introduction
Double Attack Blackjack is a blackjack variant with lots of rule twists. The most interesting is that the player may double his bet after the dealer's up card is dealt, before any player cards are. The game is popular in Atlantic City, where it can be found in about half the casinos. As of May, 2010, it was at the El Cortez in Las Vegas.
Rules
BustIt Side Bet
Event | Pays |
---|---|
Dealer has suited 888 | 200 to 1 |
Dealer has colored 888 | 50 to 1 |
Dealer busts with 6 | 15 to 1 |
Dealer busts with 7 | 10 to 1 |
Dealer busts with 8 | 8 to 1 |
Dealer busts with 9 | 6 to 1 |
Dealer busts with face card | 3 to 1 |
- Eight 48-card 'Spanish' decks are used. A Spanish deck consists of the conventional 52 cards, less the four tens.
- Dealer stands on soft 17.
- Dealer shall peek for blackjack.
- Player may double after a split.
- Aces may not be resplit, all other pairs may be resplit to 3 or 4 hands, depending on the specific casino. The analysis that follows is based on resplitting to four hands.
- Winning player blackjack pays even money.
- Player may double or surrender at any time, including after splitting. Any one hand may be doubled only once (no redoubling). Surrender after splitting is done on a hand-by-hand basis.
- Split aces receive one card only.
- Insurance pays 5 to 2.
- The first card dealt is the dealer's up card. Immediately after this card is dealt, the player has the option to 'Double Attack' by raising his bet. The raise may be up to the original wager. If the player later splits, he must match his Double Attack Bet, if he made one. If the player doubles, he may do so up to the sum of the original wager and Double Attack bet. If the player surrenders, he will be refunded half his original and Double Attack bet.
- An optional 'BustIt' side bet is also available. The 'BustIt' bet pays if the dealer busts with exactly three cards. Otherwise, the 'BustIt' bet shall lose. Most wins will pay based only on the dealer's third 'bust' card, as follows. There is a premium win if the dealer's three cards are all eights.
Following is the basic strategy for Double Attack Blackjack. 'Double Down Surrender' refers to when to surrender after doubling down.
The next table shows the expected value against each dealer up card. Correct strategy is to raise with an expected value greater than zero. The table shows the player should raise if the dealer's up card is a 2 to 8.
Doubling Down Blackjack
Double Attack Blackjack
Dealer Card | Probability | Expected Value | Bet | Return |
---|---|---|---|---|
Ace | 0.083318 | -0.322833 | 1 | -0.026898 |
2 | 0.083472 | 0.002528 | 2 | 0.000422 |
3 | 0.083458 | 0.027849 | 2 | 0.004648 |
4 | 0.083399 | 0.05884 | 2 | 0.009814 |
5 | 0.083378 | 0.093619 | 2 | 0.015611 |
6 | 0.083352 | 0.132934 | 2 | 0.022161 |
7 | 0.083320 | 0.093325 | 2 | 0.015552 |
8 | 0.083310 | 0.01911 | 2 | 0.003184 |
9 | 0.083273 | -0.066712 | 1 | -0.005555 |
10 | 0.249721 | -0.180725 | 1 | -0.045131 |
Total | 1 | -0.006191 |
The table above shows the house edge is 0.62%.
The player will raise 58.3% of the time. Additional money will also be bet doubling and splitting. The ratio of expected player loss to total money bet, the Element of Risk, is 0.35%.
Insurance
The following return table is for insurance with a house edge of 12.27%.
Insurance
Event | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Win | 2.5 | 96 | 0.250653 | 0.626632 |
Loss | -1 | 287 | 0.749347 | -0.749347 |
Total | 383 | 1 | -0.122715 |
The following table shows the probability and return for all possible outcomes of the BustIt side bet with a house edge of 8.01%.
BustIt Side Bet
Event | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Suited 888 | 200 | 1344 | 0.000024 | 0.004784 |
Colored 888 | 50 | 5376 | 0.000096 | 0.004784 |
Dealer busts with 6 | 15 | 287744 | 0.005122 | 0.076825 |
Dealer busts with 7 | 10 | 617472 | 0.010991 | 0.109907 |
Dealer busts with 8 | 8 | 968192 | 0.017233 | 0.137866 |
Dealer busts with 9 | 6 | 1366016 | 0.024314 | 0.145886 |
Dealer busts with 10 | 3 | 5366784 | 0.095526 | 0.286577 |
Loser | -1 | 47568576 | 0.846695 | -0.846695 |
Total | 56181504 | 1 | -0.080064 |
What Is Double In Blackjack
A combinatorial program was used to determine total-dependent basic strategy. Then, this strategy was run through a random simulation in an eight-deck game, with cut card. This will result in a slightly higher house edge than a composition-dependent analysis, based on the first hand in the shoe, which is how blackjack is often analyzed, but in my opinion does not represent realistic playing conditions.
Written by:Michael Shackleford
- Appendices
- Miscellaneous
- External Links
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Introduction
Double Twist Blackjack is a game I noticed at the Stratosphere in Las Vegas on February 2, 2016. It bills itself as a new game concept, but it is really just blackjack with an optional side bet. For this reason, I am classifying it as a side bet rather than a unique game.
Rules
What Is Double In Blackjack For Real
- The game is based on conventional blackjack rules.
- There are two betting spots per player.
- The player may make a side wager on each betting spot.
- The side wager pays based on the player's initial two cards and the dealer's up card.
- The pay table is shown below. I presume that the player is paid based on the highest win only.
Double Twist Pay Table
Event | Pays |
---|---|
Three-card royal | 50 to 1 |
Suited three of a kind | 35 to 1 |
Straight flush | 30 to 1 |
Three of a kind | 20 to 1 |
Straight | 4 to 1 |
Flush | 3 to 1 |
Pair | 1 to 1 |
Analysis
Play free slots on mobile phone. The following tables show the probability and contribution to the return for 4, 5, 6, and 8 decks.
Double Twist Return Table — Four Decks
Event | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Three-card royal | 50 | 256 | 0.000173 | 0.008659 |
Suited three of a kind | 35 | 208 | 0.000141 | 0.004925 |
Straight flush | 30 | 2,816 | 0.001905 | 0.057148 |
Three of a kind | 20 | 7,072 | 0.004784 | 0.095680 |
Straight | 4 | 46,080 | 0.031172 | 0.124687 |
Flush | 3 | 85,120 | 0.057581 | 0.172744 |
Pair | 1 | 284,544 | 0.192486 | 0.192486 |
Loser | -1 | 1,052,160 | 0.711758 | -0.711758 |
Total | 1,478,256 | 1.000000 | -0.055427 |
Double Twist Return Table — Five Decks
Event | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Three-card royal | 50 | 500 | 0.000173 | 0.008634 |
Suited three of a kind | 35 | 520 | 0.000180 | 0.006285 |
Straight flush | 30 | 5,500 | 0.001899 | 0.056983 |
Three of a kind | 20 | 14,300 | 0.004938 | 0.098770 |
Straight | 4 | 90,000 | 0.031081 | 0.124326 |
Flush | 3 | 168,200 | 0.058088 | 0.174263 |
Pair | 1 | 561,600 | 0.193948 | 0.193948 |
Loser | -1 | 2,055,000 | 0.709693 | -0.709693 |
Total | 2,895,620 | 1.000000 | -0.046484 |
Double Twist Return Table — Six Decks
Event | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Three-card royal | 50 | 864 | 0.000172 | 0.008617 |
Suited three of a kind | 35 | 1,040 | 0.000207 | 0.007261 |
Straight flush | 30 | 9,504 | 0.001896 | 0.056872 |
Three of a kind | 20 | 25,272 | 0.005041 | 0.100819 |
Straight | 4 | 155,520 | 0.031021 | 0.124085 |
Flush | 3 | 292,896 | 0.058424 | 0.175271 |
Pair | 1 | 977,184 | 0.194918 | 0.194918 |
Loser | -1 | 3,551,040 | 0.708321 | -0.708321 |
Total | 5,013,320 | 1.000000 | -0.040478 |
Double Twist Return Table — Eight Decks
Event | Pays | Combinations | Probability | Return |
---|---|---|---|---|
Three-card royal | 50 | 2,048 | 0.000172 | 0.008596 |
Suited three of a kind | 35 | 2,912 | 0.000244 | 0.008556 |
Straight flush | 30 | 22,528 | 0.001891 | 0.056735 |
Three of a kind | 20 | 61,568 | 0.005169 | 0.103370 |
Straight | 4 | 368,640 | 0.030947 | 0.123786 |
Flush | 3 | 700,928 | 0.058841 | 0.176524 |
Pair | 1 | 2,336,256 | 0.196124 | 0.196124 |
Loser | -1 | 8,417,280 | 0.706612 | -0.706612 |
Total | 11,912,160 | 1.000000 | -0.032921 |
The following table summarizes the house edge by number of decks.
Double Twist Pay Table
Internal Links
Blackjack side bets — Long list of them analyzed.
Written by:Michael Shackleford