By John Grochowski

Blackjack is unusual among casino games in that the odds change with every card dealt.

In roulette, there is an equal chance any of the numbers will come up on any given spin. In craps, the possibilities remain the same on every roll.

Analysts will tell you the wheel or the dice have no memory. Past results don’t influence future outcomes.

In blackjack, the cards that have already been dealt do influence future outcomes. In live games, an Ace that’s dealt on one hand isn’t available on the next. Either live or online, if you have a 6 in your hand, that specific 6 isn’t available to be dealt again in that hand.

Those ever-changing odds are the basis of card counting in live casinos. Advantage players bet more when the composition of the remaining deck is in their favor and less when the odds turn against them.

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