Wiz 21 is our newest product.  It is the only blackjack game in the world which gives TRUE ODDS.  Unlike the basic strategy, Wiz 21 calculates the MOST PERFECT answer/estimate of what you should do given the cards that have been dealt.  Click here to view a presentation.

Wiz 21 is built to give you the perfect answer for playing Blackjack with any player hand, dealer up card, and distribution of cards remaining in the deck or in a shoe of up to 10 decks.  It will tell you the correct play to make and exactly how much you would win on average by making this play or any alternative play. 

It is unique in Blackjack as it is the exact mathematical answer to each situation.  Most Blackjack players know about "Basic Strategy", which tells you what works best on the very first hand dealt after shuffling, and assumes you know nothing about what other cards have come out. Card counters improve on this by keeping track of numbers which give a better estimate of how favorable the shoe is and sometimes indicates when Basic Strategy is incorrect, but it is still an imperfect approximation which is not good enough to allow a player to win unless he increases his bet size in favorable situations or jumps into the game in the middle of a shoe. Wiz 21 not only outperforms all card counting systems, but is capable of tracking the performance of any card counting system and calculating how far short of perfect play it falls. This feature also provides players who want to learn to count cards a uniquely valuable training tool.

 The exact odds of throwing a seven in Craps, or getting zero on the next spin in Roulette, or of winning other bets in those games, are simple to calculate, but it doesn't matter because those are games of chance where the player's odds of winning never change.  Blackjack is different, because it is a game of skill, and the calculations are much more complicated.  In a 10 deck game (or even a 6 deck game) the number of combinations that need to be calculated is many trillions.  Wiz 21 can calculate the exact odds to 14 decimal places for each of these possibilities. 

 MOST OF THE MONEY CASINOS MAKE AT BLACKJACK comes from imperfect play rather than from the theoretical "House Edge" which assumes optimal Basic Strategy.  Wiz 21 not only eliminates the penalty of not knowing basic strategy, it can also eliminate the House Edge entirely (depending on House Rules; if the game offers only a 6 to 5 payout on Blackjack even perfect play will not prevent you from losing unless you can vary your bet size by a large factor). 

Robert G. Brown built this computer program and the calculations were verified by Joseph Shipman, Ph.D. in Mathematics (he trained with the famous MIT card counting team back in the 80's).  Joe is a renowned gaming expert who is co-authoring an article with Robert for a mathematical journal which explains how this system actually can produce a winning playing strategy without varying the size of the bet.  20 years ago a computer beat the world champion in chess.  5 years ago, Watson beat the experts in Jeopardy.  This year, a computer beat the GO world champion 4 out of 5 games in South Korea and now a computer program exists that is better than the best card counter or Blackjack player in the world.

In short, if you want the best answer of what to do in Blackjack, Wiz 21 is the model to use. 

There are two ways to play:

You can select the player’s starting hand, the dealer’s up card and what is in the shoe and get the exact

value of hitting, sticking, splitting , or doubling down.

You can play with cards being dealt to you, make a decision on hitting, sticking, doubling down or splitting and

see if you made the right choice.

Users will also have the capability to define a card-counting system or track one of the provided ones, and see how using the information that is tracked changes the strategy and improves the outcome.  As users practice playing Blackjack, Wiz21 will document their improvement.

Wiz 21 works with hundreds of different rule combinations, so that users may independently specify how many decks are used, where the cut card is placed, how much Blackjack pays when doubling down and splitting are allowed, whether the dealer hits or stands on soft 17, and so on.

Click here to play 

How to play - click Play, select your wager by clicking on the chips on the bottom left side of the screen.  Hit done to move to the next player.  Click on the Wizard's sign on the lower left hand side of the screen to reveal Wiz 21's recommendation to hit, stand, split or double down.  Select Settings from the home page to change the number of Players or number of Decks.

If you prefer to select your own cards and the dealer up card, click here to run our Best Decision Calculator.  

How to play – click on one dealer card, then click on two player cards, and  then click calculate.  That’s it!  Key statistics will display.  And most importantly you will see what the Best Decision (hit, stick, double down) should be based on the cards that were dealt.   It takes only a few seconds to make over 3 million calculations for  every hand dealt.  We are working on speeding up the process and look forward to delivering a faster program to you soon.  To play again, click on the Show Cards button on the top left of the game and to clear out the previous cards dealt, click on the X to the right.  Please note this does not guarantee a win or loss on any given game but that the decision will more often be correct.

 Click here to run our Simulator to automatically deal multiple hands.

May the best player win!

For some additional fun, click here to check out Cardini's mind reading powers.  Note it takes a few seconds to load and is supported by the following browsers: Mozilla Firefox 42, Google Chrome 46, Apple Safari 9.0, and MS Edge 13.

Wiz 21 is also available in the Apple Store and on Google Play.   

​Privacy Policy

Robert Brown G built the Wiz 21 app as a Free app. This SERVICE is provided by Robert Brown G at no cost and is intended for use as is.

This page is used to inform visitors regarding my policies with the collection, use, and disclosure of Personal Information if anyone decided to use my Service.

If you choose to use my Service, then you agree to the collection and use of information in relation to this policy. The Personal Information that I collect is used for providing and improving the Service. I will not use or share your information with anyone except as described in this Privacy Policy.

The terms used in this Privacy Policy have the same meanings as in our Terms and Conditions, which is accessible at Wiz 21 unless otherwise defined in this Privacy Policy.

Information Collection and Use

For a better experience, while using our Service, I may require you to provide us with certain information. The information that I request will be retained on your device and is not collected by me in any way.

The app does use third party services that may collect information used to identify you.

Link to privacy policy of third party service providers used by the app

Google Play Services


Cookies are files with a small amount of data that are commonly used as anonymous unique identifiers. These are sent to your browser from the websites that you visit and are stored on your device's internal memory.

This Service does not use these “cookies” explicitly. However, the app may use third party code and libraries that use “cookies” to collect information and improve their services. You have the option to either accept or refuse these cookies and know when a cookie is being sent to your device. If you choose to refuse our cookies, you may not be able to use some portions of this Service.

Service Providers

I may employ third-party companies and individuals due to the following reasons:

To facilitate our Service;
To provide the Service on our behalf;
To perform Service-related services; or
To assist us in analyzing how our Service is used.

I want to inform users of this Service that these third parties have access to your Personal Information. The reason is to perform the tasks assigned to them on our behalf. However, they are obligated not to disclose or use the information for any other purpose.


I value your trust in providing us your Personal Information, thus we are striving to use commercially acceptable means of protecting it. But remember that no method of transmission over the internet, or method of electronic storage is 100% secure and reliable, and I cannot guarantee its absolute security.

Links to Other Sites

This Service may contain links to other sites. If you click on a third-party link, you will be directed to that site. Note that these external sites are not operated by me. Therefore, I strongly advise you to review the Privacy Policy of these websites. I have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

Children’s Privacy

These Services do not address anyone under the age of 13. I do not knowingly collect personally identifiable information from children under 13. In the case I discover that a child under 13 has provided me with personal information, I immediately delete this from our servers. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact me so that I will be able to do necessary actions.

Changes to This Privacy Policy

I may update our Privacy Policy from time to time. Thus, you are advised to review this page periodically for any changes. I will notify you of any changes by posting the new Privacy Policy on this page. These changes are effective immediately after they are posted on this page.

Contact Us

If you have any questions or suggestions about my Privacy Policy, do not hesitate to contact me at rbrowng81@gmail.com.