How to calculate tortoise divination with playing cards? I laid out the layout, how to calculate it after layout. Who would? Teaching.

After the tortoise hexagrams are arranged, you can start playing. Turn all the cards that can be turned over, that is to say, those cards that are not pressed on it can be turned over, and then continue to turn the next card with the same number. For example, there are 8 hearts and 8 spades opened. You can take these two cards away, then turn the cards below and continue to look for cards with the same number.