Counting by Inference Strategies

This is an advanced Blackjack card counting technique. Index tables are far more important in single-deck games than in multi-deck games. Unfortunately, the count is less accurate than it could be in single-deck games because you do not get to see the other players’ hands before making your playing decisions. Counting by Inference refers to methods of estimating the count of cards in face down hands. You can obtain information to aid in the construction of a counting by inference strategy in the CVData manual. You create Inference tables using the Playing Strategy Configurator.  Three different methods are supported. When you enter the Inference screen, you will see two tables that control the three methods as follow:

Method A: Cards in Hand - Method A looks at the number of cards in another player’s hand and the dealer up card. The upper table contains the average count of the unseen hands to your right for the count and rules specified by hand length. For example, if the dealer up-card is an Ace and the player does not draw a card, look for the number in the Ace row and Pat Hand column. That number can be added to the Running Count to increase the accuracy of the count.

Method B: Three Card Hands - Method B only looks at other player three card hands. The player up card and the dealer up card are used to find the estimated count. Use the lower table for this method. For example, if the dealer up card is an Ace and the player drew a six, look for the number in the Ace row and six column. That number can be added to the Running Count to increase the accuracy of the count.

Method AB: Combination Method - With this method, you use the lower table for all three card hands, and the upper table for all other hands. Note that when you click on Method AB at the top of the screen, the three card column in the upper table is grayed out as it is not used.

Tips

To enter values, click on the first column that you wish to modify, type a number and use tab to go to the next cell.

You will not use all of the cells and will not use exact values. Generate a set of tables with a sim. Look for patterns in the tables. Develop general rules, like 2 through 6 in a pat hand are -1. The rules should be fairly simple.

The tables generated by the sim include the likelihood of each cell in the table. Ignore the cells on which little money is bet.

If you cannot get the simulator to generate inference tables, make certain that you have Develop Inference Data checked, Cards dealt face down checked, Number of Blackjack players greater than one and Your Seat greater than one.,

 

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