How to play Guangdong Mahjong

Bumper: You have a pair in your hand, and any player at the table plays it, you can bumper it into three, and then play one of the unwanted cards in your hand.

Kong: you have a dark carving in your hand, touch one of your own, at this time open the kong for the dark kong; if you do not touch one of your own, the other players play one, you can still kong, at this time for the open kong. If you have touched three cards before, and you have touched one, then it is a supplementary kong. A mulligan is the same as an open kong, and a concealed kong is twice as much as an open kong. After opening a kong, you should draw another card from the end of the pile. If the same card can be used for a draw, the draw is preferred.

Eating a card: You have two cards in a straight, and you can eat a card to form a straight if and only if the previous player plays a card that can form a straight with the two cards in your hand. When a card can be both eaten and touched (kong), the touch (kong) takes precedence.