How to mark the playing cards on the side is clear at a glance.

There are many ways to mark playing cards. Here are two methods:

First, make a mark on the edge of the playing card.

The main point of action is to make a mark on the top card or bottom card with your nails when shuffling, and just pinch it gently. This mark is not seen with the eyes, but felt with the hands.

Second, use the marker potion.

This liquid medicine can be mixed with oily ink and chloroform, and can also be used directly with ink. There is nothing wrong with the appearance of poker tampered with in this way, and only the marker knows it.

Please note that these methods are usually used for card games and entertainment, and are not recommended for situations involving gambling, which may damage your reputation and reputation. In any case, we should abide by the law and morality.