Avoid doubling on 11 against 10 or Ace. Dealer peeks for blackjack. Just go through the deck as fast as possible and keep a running count in your head. BLACKJACK STRATEGIES. Our Basic Strategy chart represents the best play when the game is for a 6-deck shoe and the dealer hits on Soft 17. These double deck strategy. 77%) and. — John Doe. Our set of six strategy cards covers all the common rule variations. Free Blackjack Forums. as this indicates a greater concentration of high cards in the remaining deck. This is because the dealer has two chances to make a stiff hand of 17 or better. Double Deck Blackjack with Surrender (Southern California) Barona Casino Sycuan Casino Harrah’s Rincon Casino * Pechanga and Pauma no longer offer surrendering on double deck. The key at the bottom explains in full. All in all, playing the game optimally can decrease the house edge by anywhere between 0. Free Blackjack Game Rules. Wait for the blackjack calculator to show you your best move. Four decks – house edge of +0. Play. The player receives a bonus for having a blackjack. 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation details; 5: Infinite deck expected return by player hand and dealer upcard; 6: Fine points of when to surrender; 7: Effect of card removal; 8: Analysis of. With standard eight deck blackjack, a house edge of 44% is presented. Blackjack aficionados routinely tout the merits of basic Blackjack strategy when playing this card game. This card is easy to use and durable, and it can help you reduce the house edge and win more at blackjack. BJ21 Forum is a place to get tips and tricks on BlackJack. Before you start card counting, you should learn "blackjack basic strategy", which is the mathematically correct way to play every move in blackjack to get the best odds. Basic strategy says DOUBLE A-2 against a 5, but if the count is at all negative, just hit it; double only when the count is 0 or higher. The player edge in single-deck blackjack on my site is based on otherwise multiple deck rules, which rarely exist in single deck. 42%: Four Decks: 0. Our strategy cards come in 1 deck, 2 deck and 4/6/8 deck versions. 5%. If you follow the basic strategy, you can cut the house edge down to around 1. 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation details; 5: Infinite deck expected return by player hand and dealer upcard; 6: Fine points of when to surrender; 7: Effect of card removal; 8: Analysis of. Card counting’s role in mastering the deviations is that to use the deviations, you must know what the correct True Count is at all times. - BASIC STRATEGY DRILL: Get feedback on your every decision. If you win a hand of blackjack, you will win double the amount that you bet. Scroll down to see a list of venues. SINGLE-DECK GAME. Practice blackjack basic strategy with the help of easy trainer Play For Free Ready to play? Check out the #1 Blackjack Casino Lucky Creek. It is a strategy which maximizes the player’s expectation given only knowledge of the player’s hand and the dealer’s up-card. Players do not need to play through those first decks in the shoe while waiting for the true count. . The player to the dealer’s left receives his cards rst, and is said to be on rst base. Check Details. Single deck – house edge of -0. You will have to r e g i s t e r (free) before you can post: click the r e g i s t e r link to proceed. In other words, if a player plays eight-deck blackjack, they would begin their running count at –28. Full content visible, double tap to read brief content. You’ll find that there are four different 6-deck blackjack strategy charts all in all: S17 DAS; H17 DAS; S17 NDAS. Double allowed after splitting pairs. The most important blackjack rule is simple: beat the dealer’s hand without going over 21. 70%: Two Card Frequency Odds. Firstly, you can’t surrender. ) A-2 vs. Practice makes perfect. Now we need to dollar value of the negative expectation, so that we can calculate the maximum win/loss. Blackjack Pays: 3:2. 8. Another good one to remember is to surrender 14 against a 10 at a true of 3 or more. 1D S17 | 1D H17 | 2D S17 | 2D H17 | MD S17 | MD H17. 39702%, if we compare that to single-deck with the exact same set of rules, the single deck game would have a House Edge of 0. At the 6:5 game- $9. First, hitting a 2 or a 3 provides a good chance of receiving a hand to double down against the dealer's weak up-card. BLACKJACK BASIC STRATEGY TEST. The few. (Use your back button to get back here. Rules: 2 Deck, Dealer Stands S17, Split up to 2 Hands Bet Sizes: $1 - $250 Simultaneous Hands: 1. 38%. If we assume a standard game in which is a 6-deck shoe is used, dealer stands on soft 17, the player may double on any first two cards, the player may split up to four times, and the player may double after splitting, the house edge with basic strategy is only 0. 4–8 deck blackjack basic strategy charts. Blackjack Cheat Sheet: Printable Blackjack PDF Chart. With all other hands of 11 or less, hit. The dealer peeks. Blackjack Strategy Adjustments When the Dealer Hits Soft 17 - Tunica. 14%). 1: Total dependent expected return table for an infinite deck; 2a: Probabilities of dealer blackjack after peek; 2b: Probabilities of dealer blackjack before peek; 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation. Red Numbers indicate the index that the true count must meet to deviation from basic strategy ` + ` after the index number indicates the deviation happens at that true count and above ` - ` after the index number indicates the devation happens at the. The basic strategy rules for hitting soft 17 are as follows: For double- and multi-deck games, hit when the dealer‘s upcard is a 2 or 7 through ace. If the dealer hits a soft 17, you should double down on an 11 if the dealer is showing an ace. The big changes have to do with some of the doubling-down strategies. These rules should work on over 90% of the games you come across. 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation details; 5:. First, we first need to learn how to play blackjack properly. Tip 1: learn the basic blackjack strategy. Fewer decks mean lower house edges. The basic blackjack chart covers three; single, double, and multi-deck blackjack. As betting rules dictate, players must add their wagers to the table before the game starts. However, since all casinos. Just received two of the large 2" x 3" blackjack cards - a 2-deck and a 4/6/8 deck. If you are not sure, just ask the dealer. Most of the other. Single deck. Here you will find two charts – Single Deck Blackjack & 4-8 Decks Blackjack. Choose Blackjack with the Best Odds. Double on soft 13-18 if dealer has 4, 5 or 6 Double on 11 (except if dealer has Ace). Traditionally, the casino pays out 3-to-2 for a blackjack, so if you wager $10 and hit blackjack, you get $15 back. The dealer pushes with 16 against 17-20. 5 & 6, otherwise hit. SP (Split): Turn your initial pair into two hands, double your initial bet, receive two more cards (dealt from the right). After splitting, doubling down is permitted and there is no surrender. 4 to 8 Deck Blackjack; You can figure this out by checking the settings or press the more. dealer’s 2. The house has an estimated advantage of 0. 67%: Eight Decks: 0. Basic Strategy Variations Matrix Double Deck, H17, Da2, no das, no surrender See the matrix. Other than that, the game is played the same – but care is needed as standard basic strategy. For example 7,7 v T is a basic strategy surrender or stay in single deck. Single deck blackjack is usually better than multiple deck blackjack for card counters, basic strategists, and the clueless. 77%) and lowering the house advantage. 13v2; 13v3; 12v5; 12v6; A6v2. Whether you’re completely new to blackjack or already know your way around. Our standard blackjack is played with a six-deck shoe. This means that you expect, on. The few differences between a two-deck and six-deck game with the same rules (dealer hits or stands on soft 17, double after split is allowed, etc. Memorizing basic strategies can also help you improve your chances of winning in Double Deck Blackjack and other variations of blackjack. A 2-card 21 is known as a "blackjack" and is the highest ranking hand. 4-8 Decks Blackjack Dealer STANDS on Soft 17 Chart. 4062%. Table game players can take advantage of these comps, too. The variant uses two decks instead of standard six and eight, opening possibilities for better RTP (99. Always double down on a hard 11. For example, if you bet $10 on a blackjack hand and win, you will receive $20, which means you will make a $10 profit. The table suggests the best move in a certain scenario. That’s because our Double Deck Blackjack requires the dealer to stand on soft 17 – a rule. From 2 to Ace. This is meant as an advanced tool, for those who have mastered basic strategy and are looking to perfect their card counting skills. * Choose Table Options/Rules. 126 for doubling). Number of Decks: Determine how many decks are in use at the particular game you are playing. ) Using the Matrix (GM. You hit your two-card soft 18 against a dealer who reveals more powerful cards like a 9, a 10, or an Ace. The game only knows basic strategy. Appendix 6 :Fine points of when to surrender. Player’s Odds Table. Think of your real money play as a performance. This chapter contains the complete, accurate basic blackjack playing strategy in color coded charts and white tables for single-, double-, and four-or-more-decks blackjack games. If we use the optimum bet spread and choose the double-deck game with DAS, the potential profit per 100 hands increases to $67. Blackjack Basic Strategy Introduction Decks: Soft 17: Double After Split: Surrender: Dealer Peek: Finally, never take insurance or "even money. The reason why single deck basic strategy is so different is because of wild variations in the true count based on the initial starting cards. My Reply. Blackjack novices should bear in mind following basic. The house edge for games where blackjack pays 6 to 5 instead of 3 to 2 increases by about 1. 1: Total dependent expected return table for an infinite deck; 2a: Probabilities of dealer blackjack after peek; 2b: Probabilities of dealer blackjack before peek; 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation. Basic Strategy Audio Flashcards. Double-Deck Blackjack. Best slot games. The Dealer Hits on Soft 17. an ace. Up to 57,500 Gold Coins + Free 27. Blackjackinfo Store. 04%: Double Deck: 0. Two 5’s should be played like a 10. Playing KO at 2D for 70-min will yeild the same expectation as playing HO2 w/ASC for 62-min. Double Down/Doubling: Doubling down or doubling is when a player places an additional bet equal to his original bet and then receives just one additional card. It plays pretty much the same as the single deck blackjack game but does require its specific chart. Ones that pay 3:2 or 2:1 for a blackjack are the best possible option. A standard basic strategy chart can only provide you with the strategy for one set of rules, such as dealer hits on soft 17, limiting your mastery to just one game. Second, a pair of 2s or 3s make for a terrible starting hand since hitting a 10 (or. YouTube: 2 Decks, Stand on Soft 17. 59%. 19% with basic strategy. So the house edge of the basic strategy playing first player was almost the same, regardless of whether the second player played correctly or wildly incorrectly. For the uninitiated, basic strategy is a set of mathematically correct playing decisions based on the dealer’s exposed card and the player’s starting two-card hand. The following color coded charts illustrate the correct Basic Strategy for Double Deck Blackjack with two common scenarios…Dealer Stands on Soft 17 or Dealer Hits Soft 17. After splitting, doubling down is permitted and there is no surrender. Hit soft 18 vs. Failing that, you can always have a chart handy at the games table. I told him that should be Double Down. It’s just like a standard deck of cards, but they’ve removed the 10s. We start with a bankroll of $500 at this blackjack table. Single Deck Basic Strategy Chart. This is a blunder because Spanish 21 calls for different decisions in many situations. 45%. Then locate your total in the first vertical row of the table. 5 & 6, otherwise hit. Toggle navigation. Following is my Spanish 21 basic strategy when the dealer hits a soft 17. Double Deck Blackjack. Hard 11 will always double down. For example, in double-deck blackjack, we play the first game. 810 Yonkers Ave, Yonkers, NY 10704-2099, USA. If you are new to this variant, you’ll find the BestCasinos team’s carefully crafted. The basic concept and objective remain the same in single-deck blackjack: you want to get to 21 points or as close to 21 as possible without busting. Add those two probabilities together, and you have the probability of getting a blackjack. Memorizing blackjack basic. 2. The optimal plays for soft 18 in double-deck and multiple-deck S17 blackjack largely coincide. When the count is +2, you’ll bet $15. Number cards (2-10) count as face value, Aces count as either 1 or 11, and Kings, Queens, and Jacks count as 10. For example, if you have hard 11, and the dealer’s up card is a 5, the tables show a D – meaning you. Basic Strategy: The basic strategy is a set of guidelines that tell players what to do based on their hand and the dealer’s up-card. Resplit aces. Always refer to a single-deck basic strategy chart for best results. We’ll now look at the double-deck blackjack soft and hard hand strategies and. The basic strategy for these games is almost identical, regardless of whether it uses 4 or 8 decks. Double Deck Blackjack Strategy. The Blackjack trainer will develop your playing acumen, and enable you to optimise your. Using both the basic blackjack strategy as well as advanced strategies such as card counting enables the players to bring the house edge percentage close to 0,. Here's my crack at it: Assuming the respective house edges (. Soft 19 is a stand versus all dealer upcards (deuce through ace) in double-deck and multiple-deck blackjack variations where the dealer must stand on soft 17. Traditional blackjack multi-deck variants have a house edge of under 0. The playing strategy changes that you should make when switching from a six- or eight-deck game to a double-deck game with the above rules are as follows. It is not their opinion. Change your bets as the true count rises. The following table shows the simple S17 double-deck games technique. It’s still (very marginally) profitable but hitting is a more profitable play. ”. The double down allows you to improve your odds with zero risk of going over 21. You can only learn so much from reading from a book. 56%. Secondly, you can only split your hand once. 87%). For example 5,3 v 6 represents a true count of +3 and hence a basic strategy double. When losing, you should keep betting one unit at a time, trying to recuperate your losses steadily. Blackjack is a very profitable casino game because the house edge is quite low. Theoretically, if blackjack can be beaten, then you may be wondering how casinos are still making millions. House edge of 0. If you end up with 0 at the end of the. Blackjack uses a standard deck of 52 cards, but itDon Schlesinger ’s Ultimate Blackjack Basic Strategy Cards feature Don’s easy-to-use basic strategy and his new, cutting-edge ultimate strategy for use with either casino or online play. Hard 12 will stand against 4-6, hit against everything else. All of these aspects are baked into the numbers that determine basic strategy. Before you start card counting, you should learn "blackjack basic strategy", which is the mathematically correct way to play every move in blackjack to get the best odds. 13%. To optimize your double-deck strategy, consider the following: Double-deck blackjack house edge and rules vary: When the rules require that the dealer must stand on soft 17s, allow the player to double down after splitting, resplit a pair of aces and call a late surrender, the house edge is 0. 14%; Players may not split aces: +0. Fab Four Basic Strategy Variation. First off, counting the Buster side bet requires a different count system than the main game of BJ. Blackjack Challenge. Player may split only once. Learn some basic blackjack strategy and enjoy the game2b: Probabilities of dealer blackjack before peek; 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation details; 5: Infinite deck expected return by player hand and dealer upcard; 6: Fine points of when to. This is the best strategy for online blackjack because it helps you dial down. With a basic blackjack strategy chart, memorising and learning the common terms and decisions used in the game will be easier. 78% when they must hit soft 17 and 42. 25%. Also double down with 9 if the dealer up card is a 3, 4, 5 or 6. Against an Ace, surrender 15 at a true of 2 or more, if the dealer stands on A-6. Current counts indicate a value of +4, but because we still have two decks less a few cards, we have to divide +4 by. As long as the count remains above -1, you’ll double; once it goes lower than -1, you’ll just hit — then hopefully leave the table if the count doesn’t improve. . Features: * Instant feedback on incorrect answers. You then have the opportunity to win more money, either through free spins, a minigame, or selecting a hidden prize. Double after split allowed. Never split 10-value cards or a pair of 5’s. NOTE: These charts do not take into account any composite dependant decisions or index deviations. dealer's 9, 10 or Ace upcard. 18%. Basic Strategy Video Flashcards. Learn some basic blackjack strategy and enjoy the gameAnd finally, the choice of table should also always be based on how much a blackjack is paid at. You have 9 and the dealer’s upcard is 5. All indexes are the same for double deck or six decks: +2. You will have to r e g i s t e r (free) before you can post: click the r e g i s t e r link to proceed. When the true count is 2 or more, surrender your 15s against a dealer’s 9. Also double down with 9 if the dealer up card is a 3, 4, 5 or 6. There are single-deck and double-deck variants of 21, shoe-dealt games, games where blackjacks pay even money and players cannot resplit. D. 1 Single-Deck Blackjack Game The accurate basic playing strategy for a single-deck game contained in color-coded blackjack charts and white tables, for different rules. , for all ten dealer’s upcards. Reading basic strategy charts/cards/sheets. Double deck blackjack features a tempting 0. Blackjack used to be played with one single deck, which gave the players the lowest house edge. 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard deviation details; 5: Infinite deck expected return by player hand and dealer upcard; 6: Fine points of when to surrender; 7: Effect of card removal; 8: Analysis of. Online casinos and land-based. Vegas, single & double deck blackjack Supports Bitcoin transactions PC, Mac and mobile play; Bonus. The splittable hands have been divided into two groups depending on whether or not doubling after splitting is allowed. PH = Split if double after Split is Allowed, otherwise Hit. If you count using a hi/lo system, you will notice that side bet counters of Buster would bet in a negative hi/lo true count. Resplit aces. As with land-based blackjack, the best strategy for online blackjack is to stick to the basic playing strategy. That is: 4 – (4 x 8) = 4 – 32 = -28. For instance, classic Vegas slots offer newcomers the chance to understand how a slot machine works, what each symbol represents, and the probability odds of different combinations. Always split aces and eights. Basic strategy advises players to stand whenever the dealer’s upcard is a 2, a 7 or an 8. And that's where free casino games come in. Shuffle-tracking: An advantage play strategy for hand-shuffled games where you compose the decks for the next shoe, steering slugs of high-cards towards the front of the deck and betting big from the start. In the case of 9 vs. If you are looking for physical strategy cards instead of using our strategy engine, the BlackjackInfo Store has wallet-size basic strategy cards, and an advanced strategy set that includes card counting indexes right on the card. Blackjack Basic Strategy Chart: 2 Decks, Dealer Hits Soft 17 (2-sided. Players can expect slow payments, low cashout limits and slow response from customer support. The only way to gain the advantage over the house is to count cards, but consulting basic strategy charts drives the house edge down to 0. 15%. If the count is minus, just hit. Single Deck: 0. The left side of the card represents the player’s hand. There are some good double-deck blackjack games with a very low house edge against a basic strategy player (as low as 0. The following tips will help you on the path towards becoming a strong player. 282%, and the second player was 11. Fine points include whether the dealer hits soft-17 and allows double after splits. Spanish 21 uses a Spanish deck, which is a 48-card deck. They offer a single deck 6:5 game, where the house edge for a basic strategy player is 1. Always hit a hard 12 vs. Blackjack players using basic strategy lose on average less than 1% of their action over the long run, giving blackjack one of the lowest edges in the casino. Always Stick to Basic Strategy. Look at the top line and find there a dealer’s card value. Soundcloud: Blackjack Basic Strategy - 2 Decks, Stand on Soft 17. For. No surrender. You shouldn’t have much trouble mastering basic strategy once you’re moving in the right direction. 50%, with some degree of variance. Perfect Pairs – bet pays out if the player is dealt two of a kind. * Choose Number of. Whenever you end up winning a whole unit, you would restart the system and go back to betting your initial unit. As the name suggests, double-deck Blackjack is played with two decks. Then a different strategy for +2 and above. The basic strategy for hitting in Blackjack is to take another card if your hand is valued at 8 or less, or if your hand is valued at 12-16 and the dealer’s up card is 7 or higher. For a hand of 9,9 vs. 6-deck H17 you double 6-deck S17 you hit Double deck (either H17 or S17) you double Single deck (either H17 or S17) you double If you're counting cards, you'd pretty much double at positive counts and hit at negative counts. Blackjack Strategy Additional Rules. Even without card counting, knowing the correct basic strategy surrender moves will help to reduce the house edge. PERCENT REDUCTION IN HOUSE EDGE. 3%, or 0. Each 3. com Nov 10, 2023 / 3 min. For example, in a single-deck game you always double down with hard 10 (and 11) no matter what the dealer’s upcard is; you split 9s against a dealer ace. The basic blackjack strategy was invented by none other than the mathematical genius blackjack legend – Julian Braun. The traditional blackjack basic strategy takes into account only the total of the. So the probability of four in a row is (64/1326) 4 = 16777216/ 3091534492176 = 1 in 184270. Using the tables, find your hand total on the left, and the dealer’s up card along the top. 05 billion hands the loss of the first player was 0. Basic Strategy Changes: 16 vs 10 = Stand Soft 18 vs A = Stand Exceptions: 16 (6+6+4) vs 10 = Hit 16 (7+6+3) vs 10 = Hit 16 (8+6+2) vs 10 = Hit 16 (9+6+A) vs 10 =. But there are some exceptions. Blackjack Basic Strategy Tables Page 3 Single Deck – Dealer Hits on Soft 17 HARD HANDS Dealer's Up Card Hand Total 2 3 4 5 6 7 8 9 10 A 5,6,7 H H H H H H H H H HSingle Deck Blackjack Basic Strategy Double Deck Blackjack Strategy Shoe Games Blackjack Strategy. dealer’s Ace. That’s 4X better odds than 6 or 8 deck games. In all cases, if you cannot double down, hit instead. 88 per hour. In addition to basic strategy and card counting, there are other advanced blackjack techniques that can be employed by skilled players:. 1 Single-Deck Blackjack Game The accurate basic playing strategy for a single-deck game contained in color-coded blackjack charts and white tables, for different rules. 5 SC. Additional decks make busts less likely, since one can draw to hands like 2,2,2,2,2,2,2,2,2 (for 18) which are improbable/impossible in single deck. There are also slight variations in strategy when you play a 6 deck game versus a single deck game. Single: House edge of 0. If you’re going to be playing blackjack seriously, then you must learn the 6-deck basic blackjack strategy chart. 1 Deck, Dealer Hits Soft 17. Despite popular belief, the Dealer standing on a soft total of 17 is actually better for the player than when the dealer must hit soft 17. To take advantage of this, you just present your players club card to the dealer when you sit down and start to play. If you are looking for a simple lite app to practice Blackjack basic strategy for a variety of deck counts and table options, look no further. There is an underlying logic to basic strategy, however, which can be understood by anyone who understands the rules of blackjack. To win blackjack like a pro, learn and follow basic strategy, double down when your first two cards total 11, never split 10-value cards or 5's, be aware of streaks, and take advantage of casino. It all comes down to knowing when you should double down. Blackjack (formerly black jack and vingt-un) is a casino banking game. Fine points include whether the dealer hits soft-17 and allows double after splits. When you use this blackjack strategy, you need to go back to the original bet as soon as you lose one. The game is played with 3 boxes and 6 standard decks of 52 cards. Basic Strategy Blackjack Double Deck. "1 2. 83%. The house edge depends on a variety of things, including. The reason behind this is because such a payoff reduces the house edge by approximately 2. Avoid standing on totals of 12. However, single-deck blackjack is another game you will sometimes see a casino run. Martingale (Betting Strategy) | Playing Double Deck Blackjack. Our example will be the procedure for the most common blackjack game played with 6 decks. Player may double on any number of cards. Dealer stands on soft 17. This section is a place to hold discussions on Blackjack. Optimal Blackjack Strategy The rules of play 1. In addition an infinite deck model was created in Excel, of which the basic strategy nearly agreed with that of the combinatorial model. 1: Total dependent expected return table for an infinite deck; 2a: Probabilities of dealer blackjack after peek; 2b: Probabilities of dealer blackjack before peek; 3a: Exceptions to single-deck S17 basic strategy; 3b: Exceptions to double-deck S17 basic strategy; 3c: Exceptions to single-deck H17 basic strategy; 4: Blackjack standard. If the dealer has less than 21, you win. The total value of that hand is 16 and that is considered the worst blackjack hand. Different blackjack games require a different blackjack basic strategy chart, as the rule changes influence the action you should take at the table. When there are a lot of things that need to go right to perform at virtuoso levels, most of them need to become second nature. 56% with basic strategy. The number of players is just as relevant as the betting limits. Player may split only once. 21 Card Game Explained. Double Deck Blackjack is a specific example of the shoe size rule applying in the game of blackjack.