The marks on marked cards can be created using various methods, such as invisible ink, scratches, shading, or other subtle alterations. These marks are designed to be recognizable to the person who marked the cards or their accomplices, often through the use of specialized tools like infrared contact lenses, special glasses, or UV light sources. By using these tools, cheaters can identify valuable cards, opponents’ hands, or other relevant information that gives them an edge in the game.
Using poker card for cheating is considered unethical and is prohibited in most legitimate gambling establishments and card games. Casinos and other gaming venues implement security measures to detect and prevent the use of marked cards, such as surveillance cameras, trained staff, and advanced scanning devices.
It’s important to note that using marked cards for cheating can lead to serious consequences, including legal action and bans from casinos. Therefore, it’s always best to engage in fair and honest gameplay when participating in card games.