Finger signal system

To use the fingerprint system, the cheater needs an accomplice who, with the help of fingers, transmits information about the opponent's cards and can also receive information from the player-sharper about his cards. It all starts with the fact that after receiving the cards from the dealer, the sharpshooter should keep the cards fan-free with both hands. With his left hand he holds the cards, and corrects them with his right hand and places them in a convenient order. The thumb of the left hand and the thumb of the right hand are on the front side of the cards, they do not accept participation in the exchange of information. Other fingers of both hands transmit information about suit and card values ​​in one fixed display. The time of the transmission of information is unlimited and can be anything from one moment to several minutes. The signaling system includes: index, middle, ring fingers and little fingers of both hands. The four fingers of the left hand are always on the card of the fan cards, and the four fingers of the right hand are in different positions, maybe on the shirt or on the front side of the cards. Everything depends on the code of the transmitted information. Usually, the fingers of the left hand carry information about the suit of the card in a single code, and the fingers of the right hand carry information about the value of the card in binary code. The table shows how the fingers of the left hand show the suit of the card.

In order to show suit, one of the fingers of the left hand as indicated in the table, slightly moves away from the shirt, that is protruding, and the other fingers of the left hand lie on the shirt. The protruding finger can bend or unbend, or lie quietly on the map, it depends on the arrangements of the sharper with his accomplice.