The rule of all-color Hu cards is: the thirteen cards in your hand are all of the same suit. Such as 1.11 million, 2.34 million, 3.45 million, 4.56 million, 90,000, and Hu 90,000.

One color is one of the most difficult and high-value card types in mahjong, because it accounts for 14 of the 36 cards of the same suit. According to statistical analysis, 8 of the 13 cards appear at one time. The probability of winning two cards of the same suit is very low, only about 1%. Therefore, under normal circumstances, if you do not have more than 8 cards of the same suit in your starting hand, it is very difficult to play all cards.

Hu Qingyi's skills are:

1. Jiujiu Formation

This is the fundamental basis for making Qingyi, that is, at the beginning of the game, there are 13 cards in hand. There should be 8 to 9 cards of the same suit, among which there must be at least two and a pair. Other cards should also have a connection relationship with the two and a pair. This is the minimum to make it all the same color. If you type one color, there must be more than 9 tiles, and half of them must be pairs and engravings before it is possible to make cards.

2. Unparalleled combinations of other suits

For example, in addition to 9 cards, there are 60,000 pairs and 23 cake combinations in the hand. It will be difficult to play all the cards in this deck. The reason is obvious. If you want to be all-in-one, you have to gradually eliminate the pair of 60,000 and 23 pie. This is equivalent to telling your opponents that you are all-in-one.

3. No more than five different cards of the same suit

You need to destroy the five different cards one by one. This will take a long time. It is not easy to finish playing, and there may be another chance. If you touch cards of other colors, you have to play them all, which will provide your opponent with the possibility of touching or firing.