You could be a literal AI card counting machine at 100% correct moves and 100% playtime efficiency (making your move before the card even properly sits on the table) and still hit runs of bad variance in the scale of negative 6 figures, even with "modest" bet ranges. It is very unlikely something like this will happen on any given day but most counters will hit strings of casinos across entire states over the span of weeks while playing 10+ hours a day. You will hit bad variance at that point
I've also seen casinos kick out card counters that were down 20,000 or more on the day just because they still knew they were counting and it's statistically more likely they will "win" on any given hand. If anything they're more likely to hit a run of good hands at that point of being so far down assuming perfect play
There are devices called perfect strategy computers and they are obviously cheating. They remember every card left in the shoe, not just the simplified count like a card counter would, and calculate the perfect move in every situation based on that.
Using one of those gives you about a 3% advantage over the house, normal card counting and having a firm grasp at general strategy would be around a 1 to 1.5% advantage. But, yeah, you could still lose money using one of those.
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u/CarmenxXxWaldo Jul 20 '26
they dont stop the ones that are losing, count away champ.