Pepsi4,

I am assuming you are talking about a real casino - ie. one where you sit down at a table with a real dealer. They generally use either 4, 6 or 8 decks and yes you can find out from each one how many they use (the other important thing for a card counter is how many cards on average are left in the shoe when they reshuffle).

However the original post related to a program for use at on-line casinos (for obvious reasons no real casinos are going to let you sit at a table with a laptop running some card counting software). Online casinos do not work with real decks of cards - they simply have a random number generator to determine the cards you are dealt. In simple terms the random number generator selects a number between 1 and 52 and that is the card you get (eg. 1 might be the Ace of Hearts, etc). Each time a card is dealt it is selected at random with no regard to the previous cards so in theory you could have the same card dealt 10 times in a row. This is what I mean by unlimited decks - because each card is selected randomly it is equivalent to dealing cards out of an unlimited number of decks and therefore counting the previously dealt cards is totally useless.

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"Computers can do that????" - Homer Simpson