Part I: Card Game Cheating · SLEIGHT-OF-HAND TECHNIQUES

Culling

How it works

Culling is the technique of secretly gathering desired cards to specific positions in the deck (typically the top or bottom) while appearing to handle the cards normally. The cheater goes through the deck and maneuvers target cards to a controllable position through subtle finger movements. Once the desired cards are positioned, the cheater can then use false shuffling to maintain their position, followed by false dealing (second or bottom dealing) to deliver them where wanted. The Stevens cull is considered one of the most advanced techniques - it allows controlling any desired cards from a borrowed, shuffled deck without ever spreading the cards face up.

Where it appears

Poker, Blackjack, any card game

On the record

Culling is a prerequisite technique for many other cheating methods. Without the ability to position desired cards, false shuffling and false dealing cannot be effectively used.

Published as a detection reference for surveillance, compliance and gaming-operations professionals. Thresholds and tuning are set by the property. Nothing here is instruction — the method is described so it can be recognised.