The Difference Between Closed Melds and Open Melds

Mahjong is a traditional Chinese folk social entertainment game. Building your hand involves creating melds. A meld is a set of three tiles. There are two types of melds in mahjong. Closed melds stay hidden in your hand. Open melds are placed face up on the table. Understanding the difference helps you choose the right strategy.

Tile Knowledge

Mahjong tiles include three suits and honor tiles. Suits are bamboos, characters, and dots. Each suit has tiles numbered one through nine. Honor tiles are winds and dragons.

A meld can be a pung, a chow, or a kong. A pung is three identical tiles. A chow is three consecutive tiles of the same suit. A kong is four identical tiles.

A closed meld means the tiles sit in your hand. No one can see them. Other players must guess what you hold. They only know your closed melds when you win and reveal your hand.

An open meld means you show the tiles on the table. You place them face up in front of you. Other players can see exactly which tiles you collected. This gives them information about your hand.

A closed meld is created entirely from tiles you draw. You do not use any discards from other players. An open meld uses a discard from another player to complete the set.

Game Steps

The game starts with each player holding thirteen tiles. You draw and discard one tile per turn. When you draw a tile that creates a meld, you have a choice. You can keep it as a closed meld or claim it as an open meld.

To create a closed meld, you need all three tiles in your hand. For example, you draw two bamboo sevens and later draw a third. Now you have a closed pung of bamboo sevens. You kept the meld hidden.

To create an open meld, you wait for another player to discard the matching tile. When they do, you claim it. You show all three tiles on the table. For a chow, you can only claim from the left player. For a pung or kong, you can claim from any player.

The choice between closed and open depends on your hand. If you want to keep your hand secret, make closed melds. If you want to speed up your hand, make open melds.

Open melds have a disadvantage. They reveal your suit preference. Other players can avoid discarding tiles you need. They may also predict your winning tile.

Valid Hand Combinations

Both closed and open melds count toward your winning hand. A winning hand needs four melds and one pair. The melds can be any mix of closed and open.

A fully closed hand is called a concealed hand. This hand scores extra points in many scoring systems. A concealed hand also surprises other players at the end of the game.

A fully open hand is easier to build but scores fewer points. You claim melds quickly from other players. However, everyone knows what you need. They may block your winning tile.

Some hands require specific meld types. A pure suit hand needs all tiles from one suit. You can build this with open or closed melds. A hand of triplets needs all pungs. Open pungs work well for this pattern.

Mixed hands use both closed and open melds. This is the most common strategy. You keep some melds hidden and claim others when convenient. This balances speed and secrecy.

A popular strategy is to keep your pair and one meld closed. You claim two or three melds openly. At the end, only you know your pair. Other players must guess your winning tile.

Scoring

Closed melds score higher than open melds. A closed pung earns double the points of an open pung. A closed kong earns even more. This is one reason to keep melds hidden.

A concealed hand, which has no open melds, earns bonus points. If you win with all closed melds, your score is higher. Your family scoring system may call this a hidden treasure.

An open meld earns fewer points. You traded scoring potential for speed. The trade-off can be worth it. A quick win stops other players from completing their hands.

Some hands cannot be open. For example, a pure hand bonus may require a concealed hand. Check your family's rules before the game begins.

The winning tile plays a role in scoring. If you steal the winning tile from another player's discard, your score may be lower. If you self-draw the winning tile, your score is higher.

Summary

Closed melds and open melds serve different purposes. Closed melds keep your hand secret and score higher. Open melds build your hand faster but reveal your strategy.

Choose your melds based on your hand and the game situation. If you need speed, claim open melds. If you want high scores, keep your melds closed.

Balance is the key to good mahjong play. Mix closed and open melds wisely. Watch other players and adapt your plan.

Family mahjong is about fun and friendly competition. Understanding meld types improves your game. Practice making both open and closed melds. Learn from each round and enjoy the game with your family.