In order to work out the switch decisions in Blackjack Switch for yourself you can use the six charts below, which show the values of all the possible three-card combinations in percentage format; a value of 57.5 (%) means that on a $100 wager you can expect to see an average win of $57.50; a value of -39.5 (%) would mean an average loss of $39.50.

The process for calculating the switch decision is simple: locate the values of your two hands, sum them together, then do the same for the hands that would result from switching - and chose whichever gives the higher value.

Take a look again at the example on the last page, a 14 and 15 against dealer 7:













Referring to the charts below, we see that the value of player 14 v. dealer 7 is -35.26, and for 15, -39.46; the sum of the two figures works out at -74.72. Switching gives 18 and 11 v. 7, the values of which are +33.43 and +33.62 respectively, which, summed together, give +67.05. Since +67.05 beats -74.64 by an awfully long way, switching is the correct decision.

Positive and negative values are coloured in yellow and grey respectively for greater clarity (chart details courtesy of The Wizard Of Odds):

Hard totals






Soft totals






Pairs

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