The most effective measure against card counting is to shuffle the deck. Casinos that don’t require the deck to be shuffled after every hand may start shuffling the deck unexpectedly if they suspect card counting. When the deck is shuffled before every hand, there is no deck that can be determined to be rich in high cards or low cards. This basically destroys the effectiveness of card counting for the player since there is no deck that continues from hand to hand. The shuffling machines that they use also defeat the people who try to keep track of the cards when they are shuffled. The effectiveness of card counting is obvious by the measures the casino gambling have taken to defeat card counters.

Card counters are usually not welcome in casinos. Blackjack card counters who use basic strategy with their card counting can turn the house advantage against the casino. They are almost unbeatable. Card counting by pure memory is not illegal but card counters will find themselves asked to leave the casino if they are found out. This is how effective card counting is in the internet bingo game of blackjack. Even casual card counting allows the player to determine when the deck is rich in high cards or low cards. The player then adjusts his wagers accordingly. The effectiveness of card counters has led the casinos to take measures against card counters. Instead of playing with one deck, free bingo games are played with two to six decks. This makes card counting harder, but not impossible.