A touch of green in mahjong

This type of card is very flexible. First of all, you should understand what is "green" and what is "red".

Green: Two, three, four, six and eight cards can be "green".

Red: 1579 red cards, all of which can be "red".

A touch of green and a touch of red is: 1579 red cards, two are generals or three are group cards, and the other cards are composed of 23468.

Simply put, the "red" card is a general card or a set of cards, and all other cards are made up of "green" cards. This kind of card is called green card and red card. .