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Variant Blackjack Rules And Effects Of House Edge

The blackjack player will encounter many rule variations which affect the house advantage and therefore affect his chances of winning. Some rules are determined by law or regulation, others by the casino itself. Not all rules are posted, so the player may have to ask either beforehand or when the situation occurs. There are too many variations to list. Go by the general rule, if the casino gives you something, it will be taking it away somewhere else.

The casino has a “house advantage” at blackjack just as it does at any other casino game. If a particular casino game has a house advantage of 5%, it means that – over the long run – the casino will win about 5% of any initial bet. As long as the blackjack player uses the best possible strategy (a strategy which is known as “Basic Strategy”), the house advantage in blackjack is less than 1%. This is very favourable to the player compared to other casino games. Of course, many blackjack players do not know Basic Strategy or do not follow it, so the true house advantage in those cases is much higher.

Dealer hits soft 17

Each casino has a rule about whether or not the dealer hits soft 17, a rule which is printed on the table itself. In the “S17″ game, the dealer stands on all 17s. In the “H17″ game, the dealer hits on soft 17s. Of course, she always stands on hard 17s. In either case, the dealer has no choice; she either must or must not hit. The “Hit soft 17″ game is substantially less favorable to the player with about a 0.2% higher house advantage. The understanding of Pkv Games will provide benefits to the players. The preparation of the strategy is based on the rules of the games. All the learning will result in the success of the games. The selection of the table is made with the skills and intelligence to have benefits. 

Number of decks

The number of decks used has a major effect on the player’s chance of winning, because it affects the house advantage. (See comparative statistics below.) All things being equal, fewer decks are more favourable for the player. (This is true for basic strategy players, even without card counting.) But all things are not equal; multi-deck games almost always have otherwise better rules than single-deck games. For illustrative purposes, the statistics below all use the same rules — double after split, dealer hits soft 17.

Number of Decks House Advantage

Single deck 0.04%

Double deck 0.49%

Four decks 0.59%

Six decks 0.66%

Eight decks 0.69%


Some casinos offer a favorable option called “surrender,” which allows the player to give up half his bet and not play out the hand. This option is sometimes referred to as “late” surrender because it occurs after the dealer has checked her hole card for a blackjack. (When casinos first opened in Atlantic City, the surrender option was available before the dealer checked for blackjack – a rule highly advantageous to the player – but this “early surrender” option soon disappeared.) Early Surrender variations still exist in several countries.

Resplit to nn

If the player splits a pair other than aces and a third card of that value appears, the player can usually resplit by putting up another bet equal to the original bet. Then there will be three bets on the table and three separate hands. Some casinos allow unlimited resplitting of cards other than aces, while others may limit it to a certain number of hands, such as four hands (for example, “resplit to 4″).

Resplit aces

When the player’s first two cards are two aces, the player may split them once. If a third ace appears, however, it cannot be resplit in most casinos. If resplitting aces is allowed, this is favourable to the player.

Double after split

After splitting a pair, some casinos allow the player to “double down” on each of the new two-card hands. This is called “double after split” (DAS) and provides an advantage to the player of about 0.12%.

Double on 10 or 11 only

Often called “Reno” rules, this rule restricts the player to doubling down only on an initial player total of 10 or 11 (sometimes 9, 10, or 11). It prevents doubling on soft hands such as soft 17 (ace-6), and is unfavourable for the player. It increases the house advantage by about 0.20%.

European no-hole-card rule

In some places, the dealer does not receive a hole card, but if the dealer is later found to have blackjack, the player loses only his original bet but not any additional bets (doubles or splits). This has the same advantage as the usual game, and as such does not change basic strategy.

Altered payout for blackjack

In some places, a blackjack pays only 6:5 or even 1:1 instead of the usual 3:2. This is the most unfavourable variation, increasing the house edge significantly more than any other player restriction. The 1:1 payout for video blackjack is a key reason why it has never approached the table version in terms of popularity.

Dealer wins ties

This is catastrophic to the player, though rarely used in standard Blackjack. It is sometimes seen in “blackjack-like” games. Sometimes this is used in games where the dealers cards are dealt face up.

Five card charlie/Five card trick

With this rule, the player always wins when five cards have been drawn without busting, unless there is a blackjack on the table.