Free Blackjack Combinatorial Analyzer

Update:The code for this software is now open-sourced and can be found here

BlackjackInfo community member MGP has kindly released his blackjack combinatorial analyzer software for Windows as freeware.

Download the zip file here: (7.6 MB).

The software license grants free usage for private, non-commercial use.

Unzip the downloaded file and run the included Setup.exe file. The software requires Microsoft Windows XP or later.

It also requires the .Net framework version 1.1. This is almost certainly an older version of .Net than you already have, so you will need to install that package as well.

You can find version 1.1 at .Net Framework v1.1 Redistributable Package (23 MB).

Thanks MGP for an exceptional program!

Screenshots (click to enlarge):
BJCA Main Screen

BJCA Results

BJCA Strategy

What is Combinatorial Analysis?

Combinatorial Analysis is an algorithmic method of determining the number of different ways of arranging things. As applied to the game of blackjack, this is a four step process:

  • Examine every possible hand that could be dealt.
  • Assess the outcome of each possible strategy choice at every decision point.
  • Weight those results by the appropriate probability of occurrence.
  • Finally, sum all those outcomes to arrive at an expected return for the game.

This is a completely deterministic process. There is no simulation or Monte Carlo random selection at work here. Instead, this is a brute-force examination of every possible ordering of cards off the shuffled deck.

About the Author

Creator of, very few can rival Ken's experience and knowledge of blackjack. His blackjack resume includes winning numerous tournament winnings, making several TV appearances and authoring multiple books on blackjack tournament strategy. Discover more about Ken's background and how he got started here

For a list of all contributors to click here

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Song Ai

It isn’t possible to manually install .NET Framework 1.1 on Windows 8, Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows 10, or Windows 11 from a CD or download center. It’s no longer supported. If you try to install the package, the following error message is displayed: “Setup cannot continue because this version of the .NET Framework is incompatible with a previously installed one.”


It would be great if someone updated the program to be able to run on current versions of Window 10/11 and current .NET Framework.


Until then you can use this version of .NET framework and it works fine (crashes sometimes, but it still works.


Cant rly download it..


Can you run spanish 21 Sims with this?




Not as helpful as I thought, man i wish there was a sim like cs verite that is more user friendly and encourages user made strategies.


cancel that. I have just noticed the real time CA, dang this is better than simulations.


would be really nice if they can add 6/8 decks as well on realtime…

Philippe B

Since a recent windows 10/64 bits update program seem to crash immediately and silently.
Fine on Windows 10/32 bits.

Philippe B

While awaiting this miracle we can use a virtual machine as a workaround

Philippe B

I simply deleted .Net 1.1 which was previously needed and now it works fine !
Strange because normally the versions of .Net are independent.

Arun Rokaya

I don’t understand why people go through such clumsy and hectic mathematics and software when it comes to gambling. For me gambling is just a fun where you want to win but not earn knowing the expected loss you are willing to bear. It is sophisticated math when we talk about probability. When something is uncertain just enjoy the uncertainty. DOn’t bother with it anymore.

Ben Dover

What drivel….


Hey it doesn’t work with version 1.1 Net


Doesn’t work with current version of .NET

Tim Brown

Does anyone know the variance on a 6 deck shoe no surrender dealer hits soft 17 if I play pure Bs? How man units if I am flat betting? I am in a 50 unit slump. Help! Thanks


I play 6 deck. I use 20 units on a table at once (1 table amount). You should have 20 table amounts to make a bank roll. When flat betting only use 1 unit. You should have a minimum of 1 to 6 chip spread. Play your game like a computer and only reflect after 10 casino sessions. You may be in a normal pull back that is associated with only 1%-2% advantage. Hang in there my friend!!!

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