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Since the very first casino opened its doors, an endless war has raged between the operators trying to protect their money and the criminals trying to steal it.

Understanding exactly how these professional thieves operate not only satisfies a morbid curiosity but also protects honest players from becoming collateral damage at a compromised table.
Understanding the "Past Posting" Scam
Past posting occurs when a cheater incredibly quickly and silently adds additional chips to their winning bet exactly a split second after the winning outcome is determined.

Often, a confederate (an accomplice) will intentionally spill a drink or loudly argue with a waitress at the exact moment the cheater makes the move.
The scam almost always involves a loud, intentional distraction created by an accompliceCheaters also use "pinching," which is removing chips from a bet after losing the handIf a player is constantly hovering their hands near their chips after the deal, pit bosses become highly suspicious The Complex Scam of Edge Sorting
In card games like Blackjack and Baccarat, the entire house edge relies entirely on the fact that the next card in the shoe is a complete mystery.

Edge sorting relies on finding tiny, microscopic manufacturing defects in the geometric patterns printed on the absolute back edge of the casino's playing cards.
Dice Sliding at the Craps Table
However, highly skilled mechanics attempt a scam known as "dice sliding," which completely removes the random tumble of the dice.

This mathematically alters the probability of hitting a 7, giving the cheater a massive, incredibly illegal advantage over the house.
Scam NameRequired Skill LevelDetection DifficultyDice SlidingExtremely High (Physical skill)Low (Dealers watch the throw closely)Invisible InkLow (Requires tainted deck)High (Requires UV light to detect)
Attempting to cheat a modern casino is an incredibly foolish endeavor that almost universally ends in severe felony charges and prison time.