Gamblers who adopt a well-known probability strategy to beat the house at blackjack beware - UK researchers have developed an automated system that will detect card counters before they can cash in.rnCard counting, a strategy made famous by the film Rain Man, involves remembering which cards have been played, and which might be likely to turn up. An abundance of low-value cards in the discard pile can tip the odds slightly in favour of the gambler, and a card counter bets big only then.
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