Anyway, how security can detect that someone counts cards?
It’s pretty simple. Surveillance and the pit bosses also know how to count cards. All mathematically correct counting systems will tell you to raise or lower your bet at almost exactly the same, because a counting system is simply a way of quantifying your positive or negative edge at a given time. So if you modify your bet in correlation with the count even 4 or 5 times, the odds that you did that on a hunch become very small. Do it 10 times in a row, and the odds are nearly 100% that you are counting.
It isn’t counting that casinos hate, per se. They hate anyone that can consistently beat their games - “advantage players”. Counting just happens to be the most easily detectable form of advantage play, so the people that still do it are cannon fodder for surveillance. Most professional advantage players today don’t count cards. They use a variety of other techniques, such as hole carding and taking advantage of promotions created by mathematically challenged casino marketing departments, that are both more profitable and far harder to detect than counting.
It’s pretty simple. Surveillance and the pit bosses also know how to count cards. All mathematically correct counting systems will tell you to raise or lower your bet at almost exactly the same, because a counting system is simply a way of quantifying your positive or negative edge at a given time. So if you modify your bet in correlation with the count even 4 or 5 times, the odds that you did that on a hunch become very small. Do it 10 times in a row, and the odds are nearly 100% that you are counting.
It isn’t counting that casinos hate, per se. They hate anyone that can consistently beat their games - “advantage players”. Counting just happens to be the most easily detectable form of advantage play, so the people that still do it are cannon fodder for surveillance. Most professional advantage players today don’t count cards. They use a variety of other techniques, such as hole carding and taking advantage of promotions created by mathematically challenged casino marketing departments, that are both more profitable and far harder to detect than counting.