Mahjong is not a joke. What does this joke mean?

In fact, it is "four groups plus one pair"

A group of three identical cards is called "touch"

A set of three connected cards is called "eat"

A group of four identical cards is called a "bar"

Two identical cards are a pair, which is the so-called "sparrow head". Without a sparrow's head, you can't play cards.

"Four groups plus one pair" can be typed or held in your hand, which means "the nm can be zero".

Mahjong player 13, one hand left after four groups. The so-called "big crane" is to make up the remaining pair of bird heads.

How to listen to cards is not much to say, there are many tricks.

Take your RP to play mahjong, this is very important! ! !