The following are the rules for calculating the number and quantity of species:

1. Mohu: Mohu number is 3.

2. Flowering on the bar: the number of flowers on the bar is 1 time.

3. Gun on the bar: The number of guns on the bar is 1 time.

4. On the bar: The number of times on the bar is 1 time.

7 pairs: The number of 7 pairs is 2.

6. Uniforms: The number of uniforms is 4.

7. Dark seven pairs: The number of dark seven pairs is 4.

8. A group of five: The total number of a group of five is 4.

Next, we will calculate the number of Hu cards needed:

Mohu+blossom on the bar+gun on the bar+seven pairs on the bar+full color+dark seven pairs+full band five = 18 times.

So if you collect 1~9W mahjong, and all of them are 10,000, you need to reach 18 to win.