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Blackjack at Posido Casino: Variants, Rules and Payouts
No Double Down on three cards
The rule set for Blackjack Surrender (Late Surrender) allows a player to give up their hand after the dealer checks for blackjack, forfeiting half of their bet. This rule modification improves the RTP by approximately 0.08 percent points, a benefit compared to not having this option at all. Unlike early surrender, which is significantly more valuable but rarely encountered, late surrender is a common feature in many blackjack variations.
In Blackjack Split / Double / H17 variations, the ability to double down is a key rule modifier that impacts the house edge. While not explicitly limited to two cards in all variations, the standard practice is to allow doubling down on any two cards. The 'Double After Split' rule, for instance, improves the RTP by approximately 0.14 percent points, making it a strategically advantageous option for players.
For players engaging with Blackjack Insurance, the decision to take this side bet when the dealer shows an Ace carries a significant house edge of 7.47%. Basis strategy dictates avoiding this bet entirely, as it lowers the overall RTP of the game. Only in situations of significant card counting advantage, with a True Count of +3 or higher, might this bet become marginally justifiable.
Soft Hand and Hard Hand Practically Distinguished
The distinction between a soft hand and a hard hand is crucial for applying basic strategy in blackjack, particularly when considering doubling down or hitting. A soft hand contains an Ace that can be counted as 11 without busting, offering flexibility. For example, a soft 17 (Ace and 6) can be hit without risk of busting, unlike a hard 17 (like 10 and 7).
In Blackjack Split / Double / H17 variants, the 'Dealer Hits Soft 17' rule increases the house edge by 0.22 percent points. This means that when the dealer's hand is a soft 17, they will take another card, potentially improving their hand but also increasing the chance of a bust for the player. This rule is less favorable than 'Dealer Stands on Soft 17' (S17).
The game of Infinite Blackjack, offered by Evolution, provides an unlimited number of seats at the table, removing the concern of a player's hand composition impacting others. This game features an RTP of 99.47% and offers several side bets, including Any Pair and 21+3, allowing for strategic variations in gameplay beyond the standard hand values.
What Percentage Does Blackjack Count Towards Bonus?
When a player claims the 300% welcome bonus up to €2,000, it is important to note the contribution of blackjack to the wagering requirements. Table games, including blackjack, typically contribute only 10% towards fulfilling these requirements. This means that for every €10 wagered on blackjack, only €1 will count towards clearing the bonus.
To meet the €2,000 bonus wagering requirement, a player would need to wager a total of €20,000 if playing slots (100% contribution). However, if only playing blackjack (10% contribution), the required turnover increases significantly to €200,000, based on the €2,000 bonus amount. This substantial difference highlights the importance of game choice for bonus clearance.
The game of Quantum Blackjack Plus Live, provided by Playtech, offers an RTP of 99.57% with optimal strategy. While this live blackjack variant offers exciting quantum multipliers up to 1,000x on specific combinations, its contribution to bonus wagering remains subject to the general 10% rule for table games, as with other blackjack variants.
Bonus conditions often exclude Blackjack completely
While Posido Casino's welcome bonus of 300% up to €2,000 is attractive, players should scrutinize the terms and conditions regarding game contributions. It is a common practice for online casinos to either significantly limit or completely exclude blackjack from contributing to bonus wagering requirements. This prevents players from leveraging the lower house edge of blackjack to clear bonuses too easily.
The bonus terms at Posido Casino specify that slots contribute 100% to bonus turnover, whereas table games, including blackjack, contribute only 10%. This disparity means that to wager the full €2,000 bonus, a player would need to bet €20,000 on slots, but a substantial €200,000 on blackjack. Such a high wagering threshold can make bonus clearance with blackjack impractical.
While Infinite Blackjack offers unlimited seats and an RTP of 99.47%, it falls under the general 'table games' category for bonus contributions. Therefore, any wagers placed on Infinite Blackjack will only count as 10% towards the bonus wagering requirements, making it a slower path to bonus clearance compared to slots.
Six Decks to Eight Decks in the Shoe
Blackjack Insurance, when played with 6 to 8 decks, presents a house edge of 7.47% and an RTP of 92.53%. This side bet is generally advised against by basic strategy, especially when the true count is below +3, as it significantly reduces the player's overall return. The payout for a winning insurance bet is typically 2:1.
A standard game of Blackjack 6 Decks, S17, DAS, DOA, with a 3:2 payout, offers an RTP of 99.54% and a house edge of 0.46%. This configuration includes rules like the dealer standing on soft 17, allowing doubling on any two cards, doubling after a split, and no surrender option. Basic strategy is essential for achieving this high RTP.
The Blackjack 6:5 payout variation, when played with 6 decks, results in a lower RTP of 98.15% and a house advantage of 1.85%. This is a significant increase in the casino's edge compared to the standard 3:2 payout. For instance, a €10 winning hand pays €12 instead of €15, a difference that impacts player winnings over time.
Blackjack variants at a glance
| Variant | Payout | House edge | Rule | Bet range |
|---|---|---|---|---|
| Blackjack Ein Deck, klassische Regeln, 3:2 | 99.85% | 0.15% | Weniger Decks = niedrigerer Vorteil; ein Deck gibt ca. −0.48 Prozentpunkte gegenüber 8 Decks. Oft durch 6:5 Auszahlung kompensiert. | Blackjack 3:2, Gewinn 1:1 |
| Blackjack 6 Decks, S17, DAS, DOA, Auszahlung 3:2, Basisstrategie | 99.54% | 0.46% | Dealer steht auf Soft 17; Verdopplung auf jeder Zweierkarte; Verdopplung nach Split erlaubt; keine Aufgabe. Basisstrategie ist für diesen Wert zwingend | Blackjack 3:2, normaler Gewinn 1:1, Insurance 2:1 |
| Blackjack Surrender (Late Surrender) – Regel-Effekt | n.a. (Regel-Modifikator) | −0.08 Prozentpunkte | Spieler gibt Hand nach Dealer-Blackjack-Prüfung auf, verliert die Hälfte des Einsatzes. Verbessert RTP um ca. 0.08 Prozentpunkte. Early Surrender ist wesentlich wertvoller (bis −0.6 Prozentpunkte), aber extrem selten. | Rückzahlung 50% des Einsatzes |
| Blackjack Split / Double / H17 – Regel-Effekte | n.a. (Regel-Modifikatoren) | H17 +0.22 Prozentpunkte; RSA −0.08 Prozentpunkte; DAS −0.14 Prozentpunkte | Dealer Hits Soft 17 verschlechtert RTP um 0.22 Prozentpunkte; Resplit Aces verbessert um 0.08 Prozentpunkte; Double After Split verbessert um ca. 0.14 Prozentpunkte; 6 Decks statt 8 – ca. 0.02 Prozentpunkte. | Double – Einsatz ×2 mit einer Karte; Split – bis 4 Hände; Ass-Split meist mit einer Karte. |
| Blackjack Auszahlung 6:5 statt 3:2 (6 Decks) | 98.15% | 1.85% | Ersatz von 3:2 durch 6:5 fügt exakt +1.39 Prozentpunkte zum Vorteil des Casinos hinzu – stärker als jede andere Regeländerung. Bei $10 Einsatz zahlt Blackjack $12 statt $15. | Blackjack 6:5, Gewinn 1:1 |
| Blackjack Insurance / Versicherung (6–8 Decks) | 92.53% | 7.47% | Separate Nebenwette bis 50% der Hauptwette, wenn der Dealer ein Ass hat. Basisstrategie schreibt IMMER Ablehnung vor (außer Karten zählen bei True Count ≥ +3). Bei einem Deck Vorteil ≈ 5.88% | Insurance 2:1 |
Perfect Pairs vs 21+3 in House Edge
The Perfect Pairs side bet, when played with 6 decks, can have a house edge of 1.39% if the main payout is 6:5 instead of the standard 3:2. This increase in house advantage stems directly from the less favourable payout structure for the main game. For a €10 bet, a 6:5 payout results in €12 winnings, whereas a 3:2 payout would yield €15.
This side bet is one of four available on Infinite Blackjack, alongside Any Pair, Hot 3, and Bust It. The house edge on such side bets is typically higher than the main game.
Understanding these differences is crucial for players. While the main game of Blackjack Auszahlung 6:5 has a house edge of 1.85%, the 21+3 side bet in Infinite Blackjack, despite the main game's high RTP, contributes to an overall higher cost per hand played. Players should be aware that side bets often carry a significantly larger house edge compared to the fundamental game of blackjack itself.
Place Side Bet before cards are dealt
Side bets in blackjack, such as Perfect Pairs or 21+3, require players to place their wager before the initial two cards are dealt. This applies to all variants, including those offered by Evolution and Playtech. For instance, on Infinite Blackjack, players can choose from four side bets, all placed simultaneously with the main wager.
The timing of side bet placement is a universal rule across blackjack variants, ensuring a consistent player experience. On Quantum Blackjack Plus Live by Playtech, side bets are also placed before the deal, allowing for participation in potential quantum multiplier payouts on combinations totalling 21. This pre-deal placement is fundamental to the structure of these optional wagers.
This rule means that players must decide on their side bet participation upfront. For example, if a player opts for the Blackjack Insurance side bet, which pays 2:1, this decision must be made when the dealer shows an Ace. This early commitment is a standard condition for all blackjack side bets, impacting the overall cost of play.
Side Bets don't count towards bonus turnover
Bets placed on side wagers in blackjack do not contribute to meeting the wagering requirements of any welcome bonus. For example, the 300% welcome bonus up to €2,000 plus 100 free spins at Posido Casino would not be cleared by playing side bets. This is a common exclusion in casino bonus terms and conditions.
The game contribution for table games, including blackjack variants, is set at 10% towards bonus turnover, while slots contribute 100%. Side bets are typically excluded from this calculation entirely. This means that to clear the €2,000 bonus, a player would need to wager €20,000 if only playing table games, and side bets would not reduce this amount.
Therefore, players focusing on bonus clearance should prioritize main game bets over side bets. For instance, a €10 side bet on Blackjack Insurance would not count towards the €40,000 turnover required for a €1,000 bonus at 40x wagering. This exclusion significantly impacts the effective bonus value for players who favour side bets.
One Deck vs Eight Decks in House Edge
Blackjack played with a single deck, adhering to classic rules and a 3:2 payout, offers a significantly lower house edge of 0.15%. This is due to fewer decks reducing the inherent advantage for the casino. A single deck variation can reduce the house edge by approximately 0.48% compared to an eight-deck game.
Conversely, Blackjack Auszahlung 6:5, played with 6 decks, presents a higher house edge of 1.85% due to the less favourable 6:5 payout. This payout structure increases the casino's advantage by 1.39 percentage points compared to a standard 3:2 payout. This is a substantial difference for players betting €10, where winnings drop from €15 to €12.
For players seeking the lowest house edge, a single-deck game with a 3:2 payout like Blackjack Ein Deck is preferable, offering an RTP of 99.85%. In contrast, the 6-deck game with 6:5 payouts, yielding an RTP of 98.15%, significantly increases the player's potential losses over time due to the amplified house advantage.
Splitting tens costs expected value: better stand
Splitting tens in blackjack, particularly when dealt as two ten-value cards (10, Jack, Queen, or King), is generally not advisable as it reduces the expected value for the player. While some rules allow splitting, the optimal strategy dictates standing on a hard 20. For instance, Blackjack 6 Decks with S17, DAS, DOA, 3:2 payout has a house edge of 0.46%.
The decision to split tens can negatively impact the player's chances of winning, especially when compared to the strong hand represented by a pair of tens. While doubling after a split (DAS) improves RTP by approximately 0.14%, the act of splitting a strong hand like two tens often leads to a worse outcome than playing the hand as a 20.
Standing on tens provides a powerful starting point, aiming for a natural blackjack or a high total. The Blackjack Liberal Vegas Strip, with an RTP of 99.72%, includes rules like DAS, but splitting tens would still deviate from the optimal strategy that maximizes expected value, leading to a potential loss of expected winnings.
What Peek Means with a Dealer Ace
The dealer "peeking" at their hole card when they have an Ace is a common practice in Blackjack Liberal Vegas Strip. This action is governed by specific rules and directly impacts the player's decisions. In this variant, the dealer checks for Blackjack immediately when their upcard is an Ace, before any player actions are taken.
This "peek" procedure is standard in many Blackjack games and is crucial for determining whether a player has received a natural Blackjack. For instance, if a player also holds an Ace and a ten-value card, and the dealer peeks to reveal a ten-value card as their hole card, the dealer has Blackjack, and the player's hand is resolved accordingly.
The consequence of the dealer peeking is that players are immediately informed if the dealer has Blackjack. This prevents players from making further bets or doubling down on hands that are already destined to lose against a dealer's Blackjack, saving them potential losses on their wagers.
Insurance vs Even Money on Own Blackjack
Blackjack Insurance is an optional side bet offered when the dealer's upcard is an Ace, with a payout of 2:1. This bet functions as a wager on whether the dealer has a Blackjack. The RTP for Insurance with 6-8 decks is 92.53%, indicating a house edge of 7.47%.
Even Money, on the other hand, is an option for a player who has a Blackjack when the dealer's upcard is an Ace. Instead of risking a push, the player can accept a 1:1 payout immediately, foregoing the standard 3:2 payout. This is offered because the dealer's Ace implies a high probability of them also having a Blackjack.
Comparing the two, accepting Even Money when you have a Blackjack and the dealer shows an Ace results in a guaranteed payout of your initial bet, whereas taking Insurance is a separate bet with a lower RTP. For a player with a Blackjack, Even Money offers certainty, while Insurance is a gamble on the dealer's hand.
Even Money only possible with Dealer Ace
The option for a player to take 'Even Money' on their own Blackjack is exclusively available when the dealer's upcard is an Ace. This rule is designed to mitigate the risk of a push when both the player and the dealer achieve a natural Blackjack.
If the dealer does not show an Ace, the player is not presented with the Even Money option, regardless of whether they have achieved a Blackjack. In such scenarios, the standard 3:2 payout for a player's Blackjack is applied if the dealer does not also have a Blackjack.
The presence of the dealer's Ace is the sole trigger for the Even Money offer. This ensures that players are only given this option when there is a statistical likelihood of the dealer completing their hand to a Blackjack, thus making the choice relevant.
Statistics display saves the last 100 rounds
Some tables, like Infinite Blackjack from Evolution, may offer a statistics display that records the outcomes of the last 100 rounds. This feature provides players with historical data on the game's results, including winning hands and potential side bet payouts.
This display can be useful for players who like to track trends or simply observe the game's flow, although it does not influence the inherent house edge of games like Blackjack Liberal Vegas Strip, which has an RTP of 99.72%. The statistics are purely informational.
By reviewing the last 100 rounds, players can gain a limited insight into recent game patterns, though it's important to remember that each round in Blackjack is an independent event. The displayed data is not a predictor of future outcomes.
Double Down after Split: which tables allow it
The ability to Double Down After Split (DAS) is a player-favorable rule that can significantly improve the RTP of a Blackjack hand. For example, Blackjack Liberal Vegas Strip explicitly allows DAS, contributing to its favorable house edge of 0.28%.
This rule means that after a player splits their initial two cards, they can choose to double their bet on one or both of the resulting hands. This is a strategic option typically exercised when the new two-card hand has a strong potential to win.
While Blackjack Liberal Vegas Strip includes DAS, other variants might not offer this flexibility. The presence or absence of DAS can adjust the house advantage; for instance, not allowing DAS increases the house edge by approximately 0.14 percentage points compared to tables that do allow it.
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