The cards in the player's hand are in pairs, with 2, 5 and 8. This kind of card is called a pair.

Brand model: 2255888000 555888 tube. The name comes from Chengdu Mahjong and the style of Mahjong popular in Sichuan and Chongqing, especially in Chengdu and its surrounding areas. The core is to break the door, it is windy and rainy, Chengdu is counted, and health inspection (pig inspection).

In addition, rules similar to matching are:

Clear pair (3 gold: ×8) The cards in the player's hand are all right for Hu, and such a card type is called clear pair. Card type: 222444555779000.

The cards in the player's hand are in pairs, with 2, 5 and 8. This kind of card is called a pair. Brand model: 2255888000 555888 tube.

7 pairs (2 bottom gold: ×4) players' Hu cards are all in pairs, and they have never touched or crossed cards. This kind of card is called seven pairs (or dark seven pairs). Brand model: 1 13344660557799 test tube.

Seven Qing pairs (4 golds: × 16) are all seven pairs, which are called seven Qing pairs. Card type:11334466789900.

Dragon Seven Pairs (4 gold: × 16) The cards in the player's hand are seven pairs of dark cards, and four cards are exactly the same when they are not touched. This type of card is called Dragon Seven Pair. Brand model: 1 1222244 million 557788 tubes.

Seven pairs of dragons (5 gold: ×32) The cards in the player's hand are all seven pairs of dragons, which are called seven pairs of dragons. Brand type:112244445799000.

Mahjong originated from Guangdong, Hong Kong and Macao in China, commonly known as sparrow. It is a game and entertainment appliance invented by ancient people in China. Generally, it is a small rectangular box made of bamboo, bone or plastic with patterns or words engraved on it. Each mahjong deck in the north has 136 cards, and there are eight more cards in the south, namely, spring, summer, autumn and winter, plum, bamboo, orchid and chrysanthemum, totaling 144 cards. Playing dominoes with four people is very popular in China cultural circles.

In the late Ming and early Qing dynasties, while the horse brand prevailed, an entertainment device called "playing cards" was derived from the horse brand. There were 60 cards at first. When playing cards, four people each take ten cards first, and then take cards and play cards in turn. One family plays cards, and two or even three families say at the same time that the first one to get the card wins. These items and playing methods are very similar to today's mahjong tiles. This card game is always silent in the process of playing, so it is also called silent card.

References:

Chengdu mahjong Baidu encyclopedia