The user chooses from the main screen of the application the type of challenge required (cards or numbers)
If he chooses the cards, for example, a group of playing cards will appear in front of him. He must choose one in his mind and then press the group button that contains this card, A. B. C
The card may move to another group, so the challenger has only to press the button of the group to which this card has moved
For the third and final time, he presses the group button as he did before
After that, several cards will appear to him that change quickly, then they will stop on an upside-down card. All he has to do is touch this card, and the result will appear, and he will see whether this is the thing he chose or not?