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Your most frequently asked questions.
Request a new card deck, drag the Monero chip to either the Player, Banker or Tie section to make your bet and use the Deal cards link. As easy as that. After each round you can review an instant fair proof of the game and continue with the New game link. Be sure to also review thepart of this FAQ for more information.
Baccarat is a card game played with a standard 52 card deck with French suits (hearts, diamonds, clubs and spades) with no jokers. We play the most widespread Baccarat version of the game the so called Punto banco version. Once a card deck is shuffled, the result of the Baccarat game is deterministic (no decision making during the game is involved). The game was popular in Europe since the 19th century and has since then become a well known card game in all parts of the world. It belongs to the most played and popular card games in casinos because of its very low house edge. The Baccarat rules are described further below in this FAQ. If you haven't played Baccarat yet, you can read more about it and its typical house edge on Wikipedia here .
We use higher payouts for the Baccarat game than all casinos we have ever visited or heard of (including the very few fair online Baccarat game providers). Even money is paid in case of a banker’s win and more than even money is paid in case of a player’s win. Tie pays 9.1 times the bet amount as it is also the least probable outcome of the game. Here is a brief comparison:
|Banker||0.95 : 1||1 : 1|
|Player||1 : 1||1.05 : 1|
|Tie||8 (9) : 1||9.1 : 1|
All payouts are instant and credited to your balance immediately by the game engine. To give you an example, if you bet 1 XMR, the payouts for the three possible game outcomes will be as follows.
PLAYER - 1.05 XMR BANKER - 1 XMR TIE - 9.1 XMR
The payout is instantly credited to your balance and can be used for another game round or withdrawn immediately. An immediate withdrawal is possible because we already waited for the necessary transaction confirmations after you had deposited your money.
Both the player and the banker draw two cards (starting with the player and alternating) and then follow some rules for drawing a third card. In Baccarat the 2 through 9 cards in each suit have their face value, the 10, jack, queen, and king have a value of zero and aces are worth one point. The total value of cards is always given by the last digit of the sum of the cards, so that the highest possible total value is 9. Some examples follow.
We implement the standard Punto banco rules so the game goes on as follows. If either the player or banker or both achieve a total of 8 or 9 at this stage, the game ends with a natural win or tie. If that's not the case, following rule applies for the player. If he has an initial total of 0 through 5, he draws a third card. If the player has an initial total of 6 or 7, he stands. The banker then acts as follows. If the player has two cards, he applies the exact same rule as the player. If, however, the player has three cards, the rules for the banker to draw a third card are more complex depending also on the banker's total as follows.
With player having three cards and with a current total value of 2, the banker always draws a third card. If his total is 3, he draws a third card unless the player's third card was an 8. If it is 4, then the banker draws a third card if the player's third card was between 2 and 7. If it is 5, then the banker draws a third card if the player's third card was between 4 and 7. If it is 6, then the banker draws a third card if the player's third card was a 6 or 7. If it is 7, the banker stands. At whichever stage the game ends with two or three cards in the hand of the player and the banker, the final result is calculated with the higher total amount winning the game or having a tied game if the values are equal.
Due to the more complex Baccarat rules compared to something as simple as a dice game for example, it is not obvious to everybody. Calculating the winning probabilities with standard math is hard because of the many conditions that need to be taken into account. So a better way is to run some simulations and let a computer program do the job. Here are the results. With a randomly shuffled card deck the banker has roughly a 46 percent chance to win the game, whereas the player only about 44.6 percent. That’s why many people in casinos tend to bet on the banker. From thousand rounds only about 95 games will end up to be a tied game.
Request a new card deck, drag the Monero chip either to one of the card suits (hearts, diamonds, clubs, spades) or color (red or black) to make your bet and use the Deal card link. As easy as that. After each round you can review an instant fair proof of the game and continue with the New game link. Be sure to also review thepart of this FAQ for more information.
Card Roulette is a simple card game played with a standard 54 card deck with French suits (hearts, diamonds, clubs and spades) with two jokers. Once the card deck is shuffled you can either deal the first card to see the game result or you can burn an arbitrary number of cards to choose your favorite card to play with.
We use the most natural payouts for a card roulette possible with a very low house edge that is only given by the two jokers. Without the jokers the house edge of this game would be zero. Even money is paid if you bet on the color, third time the bet amount is paid if you are lucky to bet on the suit.
|Red color||1 : 1||2 x|
|Black color||1 : 1||2 x|
|Hearts suit||3 : 1||4 x|
|Diamonds suit||3 : 1||4 x|
|Clubs suit||3 : 1||4 x|
|Spades suit||3 : 1||4 x|
All payouts are instant and credited to your balance immediately by the game engine. To give you an example, if you bet 1 XMR, the payouts for the various game outcomes will be as follows.
COLOR - 1 XMR SUIT - 3 XMR
The payout is instantly credited to your balance and can be used for another game round or withdrawn immediately. An immediate withdrawal is possible because we already waited for the necessary transaction confirmations after you had deposited your money.
The rules of our card roulette are very simple. You can bet either on one of the four different card suits or by placing the chip between the suits you can also bet on color. You bet on red color by placing the chip between the two red suits (hearts and diamonds) and you can bet on black color by placing the chip between the two black suits (clubs and spades). After the card deck is shuffled you don’t have to play with the very first card in the deck. By using the Burn card link you can play with a lucky card of your choice.
If your bet on the suit was correct, you win. To win a red color bet, the card must be of red color, to win a black color bet, the card must be of black color according to the following picture. A joker does not belong to any suit and does not have a color, so a joker always means that you lost the game.
It is quite obvious, that (without jokers) betting on a suit has a win chance of exactly 25 percent whereas a bet on the color has a win chance of 50 percent. By introducing the jokers (there are only two jokers in the deck) this probability is slightly less (24.07 and 48.15) but still very attractive.
Yes, and not only WE can. YOU can and are asked to do the same. You should definitely review thepage before ever thinking of sending some XMR to this site. Besides the plain language description we've explained all the math there that guarantees both a random shuffle of each card deck and that it stays untouched after your bet. Don't believe the wording there, believe in the math. If you don't understand it, ask anybody who does. Only then should you be thinking of sending your money to the site. Besides the general fairness explanation, we also generate a fair proof of the game after each round, so feel free to review it.
Unfortunately not. Don't believe online casinos and various online services just because they use the magical 'provably fair' words and show you some cool looking long hex numbers. Always do your homework and verify what they're telling you. From technical point of view, many things are overlooked by people, like when you are not told the exact game generation algorithms or when you are not able to make an instant proof of every single game. But even some good looking sites do not address all important aspects you should really care about. Read about some of them on thepage under How provably fair sites cheat.
Yes, of course. And in fact, you are advised to. One of the reasons this site has been created for is just fun and spreading some awareness of the card games. Only when you really believe in the fairness principles of this site, try to play with some XMR. Only play with bet amounts that, when lost, do not threaten your daily life in any way.
Yes. There is always a minimum and a maximum bet amount. We might also change these limits based on what the demand of our users will be. The minimum and maximum bet amounts are always displayed under the bet amount text field. A maximum bet amount is necessary for the site to be able to make a high payout for lucky users. With a minimum bet amount we want to make the game more interesting. But remember, you can play with zero amount without or even without creating an account and depositing any money.
We have run simulations to be able to optimize the amounts of XMR we are holding in a hot wallet for instant withdrawals and in cold wallets. Yes, once you deposit your money, you lose the direct control over it, but this is also true for every centralized exchange or service you might be using. We believe that depositing the money is necessary for a good gaming experience. Otherwise you would have to wait until your transaction reaches some depth in the blockchain before each single game. Be sure to always leave just the amount of XMR at our site which you want to play with. Have you won some nice amount of Monero? So go on and withdraw it. Are you not going to play in the next couple of days? So go on and withdraw your entire balance. This should be your default behavior with any online service be it an exchange or anything else.
No. As you have been advised in the previous question, you should only deposit money you want to play with and withdraw any wins or even your entire balance if you intend to stop playing for several days. There are no withdrawal fees at all as any additional withdrawal fees are basically a daylight robbery. As for every transaction, of course, a transaction fee will be included on the Monero protocol level when you deposit your money.
We will be glad to answer all your questions regarding our site. Please drop a message at email@example.com.
We play fair and here is how.
Have you ever played Baccarat or another card game in a casino? While playing, you could see the card deck all the time so you could be sure that nobody manipulates the card order after you made your bet. This is essential because if a casino could manipulate the cards after your bet, they could easily reorder the cards in such a way that you would lose the game so that you wouldn't have much fun to play. Playing a card game with us, you can't see the card deck, right? Wait, actually you can. Of course, we can't reveal the cards to you before your bet - that wouldn't be much funny either. However, we can show you the card deck in a very smart way that makes sure that the order of cards in the deck is both random and fixed and can't be changed by us after you made your bet. We do this by showing you a long number before each round which, if we were to change the card deck in any way, would never fit into the fairness proof that you can review after every game. Yes, luckily there is the math for doing such smart things. So remember, we don't ask you to blindly trust our site, we just ask you to believe in the math.
While some online game providers only guarantee that they do not manipulate the outcome of a game, which is easily done by using modern hash functions, this is far from what we call a provably fair system. An online game provider can easily learn from your bets and can be tempted to cheat while still being able to prove not manipulating the outcome. How? Many Baccarat players for example are known to bet just on the banker. If the provider sees that, he can shuffle the card deck before the game so that the result is player and he will show you the hash of the card deck. After you lost the game he will still be able to prove that he didn’t manipulate the card deck. Playing card games online, a provably fair system must always guarantee two things. Cards must not be reordered after your bet and the card deck must be shuffled randomly before each round.
Before we embark on the explanation of our provably fair system, let’s have a look at how we actually map a card to a byte value. Since there are only 52 or 54 cards in a standard card deck that we are using, it is obvious that a byte range will be more than sufficient to represent a single card uniquely. We use the French suits with hearts, diamonds, clubs and spades. Let SUIT be an integer value defined for each suit as follows:
Each card has a value of 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K or A. While the numeric cards map to a integer value directly, we have to define some values for the J, Q, K and A cards. So let VALUE be defined as follows:
We then use the four higher-order bits to represent the suit and the four lower-order bits to represent the value of the card. With other words, we construct a byte value for any particular card as:
CARD = (SUIT << 4) | VALUE
Let's have a look at two examples:
As we show in the description below, we use data from both ends the server and the client to shuffle the card deck. The server generates a random data block for every round (server seed) and sends a SHA512 hash of it back to the client before a fresh card deck is requested. This hash can be reviewed at any time, its full representation is always visible under the SEED link. The important point is that you are given the hash before you request a card deck. Only after the server seed has been fixed and its hash has been made visible to you, you request a fresh card deck by also sending data from your end (client seed). Note that even the initial client seed for each round is generated on the client side so that the server is not involved even in the very first client seed calculation (this is often omitted in provably fair system implementations). Of course, you can change the client seed and request a new card deck before making your bet. And not only that, you can shuffle the card deck multiple times before you decide to play by providing a different client seed and repeatedly requesting a fresh card deck (remember, the server seed is fixed). This way we guarantee that the card deck will not only stay untouched for the upcoming game round, but will also be fully random.
Omitting random game conditions: Many providers can prove that they do not manipulate the outcome of the game which is easily done with modern hash functions. However, given a Baccarat game for example, a site can easily see that you tend to bet on the banker. So for the next game they prepare a winning card deck for the player and send a hash of it to you. After you lose the game, they can still prove, nothing was wrong with the card deck. You could try to defend yourself by betting completely random, but as humans are poor in generating anything random, you would be out of luck.
No true client seeds: To guarantee a random shuffle of a card deck, it must obviously also be derived from some data not controlled by the site. This is often called the client seed. But do you really bother changing the seed before you play? If the initial client seed has been generated by the server, it’s like you would be playing without any client seed at all which also means that a card deck could be manipulated to decrease your chance to win against the service provider. This is why our initial client seed is generated by the browser rather than the server. Some implementations might also add some other pseudo randomness by incorporating other data sources like transactions or time. If done in an appropriate way, it is ok but it should never fully replace the client seed.
Order of seed generation: Even if you are given the option to change your client seed, you should always check that the site fixes the server seed first. You should only be asked to provide or change your client seed after you have been given the hash of the server seed. Otherwise, it is not a problem for the site to manipulate the game outcome by trying out some random server seeds until the desired outcome is achieved.
Given the plain server seed data (SERVERSEEDPLAIN) and the client data received with every card deck request from the client (CLIENTSEED) we calculate a data block as follows (CARDDECKBASE):
This data block is almost what we want. It is based on both the server and client seed data and has been hashed. Deriving a card deck from this data block means that the card deck is random and unalterable. We can’t, however, map this data block directly to the playing cards for a simple reason. The data block might (and mostly will) contain duplicate bytes and we can’t play with duplicate cards in one card deck, right? So as a final step we need a deterministic algorithm to derive our 52 or 54 card deck from the 64 bytes produced by the SHA512 hash function. The algorithm is quite easy, we start with a sorted card deck (sorted by suits and then by values as defined above). So a sorted deck looks like this (SORTEDDECK):
Using the first 52 or 54 bytes of the 64-byte hash we compute 52 or 54 random indexes into the sorted card deck to pick up the cards into the final deck. After each step, of course, we must remove the card already taken from the sorted deck and make sure that the next index will not overflow the remaining number of cards in the sorted deck. Let CARDDECK be be the final deck to play with, then the algorithm in some hopefully readable pseudo code goes like this. Note that CARDCOUNT is 52 or 54 depending on whether a card game is played with or without the two jokers.
What this algorithm does, is that it basically maps a random value to a smaller range (index into the sorted card deck). Note that some other approaches (modulus approach) generate a biased distribution after the mapping so that some cards would have higher probability to appear on certain positions in the final deck. Even the linear mapping approach used here is slightly biased by design, that's why we take two bytes from the random base for each index, which makes this effect negligible.
To help you verify the fairness of the game outcomes, after each game a fair proof link will appear automatically. This instant proof will guide you through the steps of a single game verification using the current server seed, client seed and, of course, revealing the entire card deck.
Once a card deck is shuffled, a Baccarat game outcome is deterministic. With other words it does not involve any decision making on either the user or server side. That being said, probabilities can be calculated for a banker, player or tie game outcomes. So for example, given a fresh card deck, a bet on the banker has a more than 46 percent winning probability. So if you play many rounds, you should observe that the banker’s winning ratio approximates to this value.
Current server seed hash:
A new server seed is generated for each game and you see its hash before a card deck is shuffled.
The client seed was generated by your browser, you can change it anytime and request a new card deck.
Your XMR deposit address:
Feature not available. Please refresh the page or try again later.
Please note that your balance will update in about 20 minutes after making the transaction.
Enter your XMR withdrawal address:
Amount to withdraw:
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We played this game fair and here is the proof.
This is how the card deck looked like in left to right orientation:
We showed you the following data before the game (SERVERSEEDHASH):
The server seed that we kept secret was (SERVERSEEDPLAIN):
Now you can verify that the following holds:
SERVERSEEDHASH = SHA512 ( SERVERSEEDPLAIN )
This shows that the seed has been fixed before the game and has not been modified.
Let's prove that we have not cheated the card deck. You gave us this data for the card deck (CLIENTSEED):
We have shuffled the card deck with the help of both data blocks including your data (CARDDECKBASE):
The above formula produces the random base for the card deck:
Using the algorithm described on ourpage you can now unambiguously derive the card deck (CARDDECK):
As you can see, these bytes directly represent the card deck as shown on the beginning of this proof. See thepage for more details on the card to byte mapping and more.
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1.2. Please read the Terms carefully. If you do not agree to accept and be bound by the Terms please do not open an account or continue to use the Website. Your continued use of the Website constitutes acceptance of the Terms.
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