The Lucky Hand Journal
American Mahjong Hands: How to Read a Winning Line
American Mahjong has many winning patterns, but the check is wonderfully clear: your 14 tiles must match one complete line on the current National Mah Jongg League (NMJL) card. That line is the recipe. Tile counts, groupings, suit requirements, and exposure rules all need to fit together. The card changes each year, so keep the current one close.
Quick check: 14 tiles, one complete card line, and legal use of suits, jokers, and exposures.
The featured image is an illustration for this guide, not a sample NMJL line or a valid winning hand.
In this guide: read a card line · recognize the groups · jokers and exposures · build your hand
How to read a winning line
The NMJL card is organized into sections of related patterns. You may see themes such as year hands, 2468, 369, consecutive runs, like numbers, winds and dragons, or singles and pairs. Section names can shift a little from card to card; each complete row is one exact hand.
- Start with a section that fits your tiles. A section title is a useful clue, but it is not a hand by itself.
- Choose one full line. Read all the groups across that row. You cannot combine a pair from one line with a set from another.
- Count the tiles and match the suits. Follow the line’s numbers, group sizes, and color cues. The card’s colors show how its groups relate by suit.
- Check the fine print. Look for “Concealed,” required flowers, winds or dragons, and any other notes before you commit.
For a visual walkthrough, see the American Mah Jongg Association’s guide to reading the NMJL card. The National Mah Jongg League card page is the place to check the current card.
The tile groups you’ll see
Knowing the group names makes a card line easier to scan:
- Pair: two matching tiles.
- Pung: three matching tiles.
- Kong: four matching tiles.
- Quint: five matching tiles.
Some lines also use singles or special tiles. The card tells you exactly which tiles make each group and which suits are needed. A “pung” is only the group size; the matching number, suit, and place in the line still matter.
Three pattern families to practice
Number-focused lines
Sections such as 2468 and 369 give you a starting point for scanning your rack. Then read one complete line carefully: it sets the number pattern, group sizes, and suit relationships. Having several matching numbers is a promising start, not a completed hand.
Consecutive runs
Run-based lines use neighboring numbers in combinations shown on the card. Check which numbers repeat, how many tiles belong in each group, and whether the line asks for one suit or more. A sequence that looks tidy on the rack still has to match the full row.
Winds, dragons, and year hands
These lines bring in special tiles or a year-based pattern. Follow the card’s exact instructions for flowers, winds, dragons, and suits. If one tile seems to have a special role, verify it on the current card before building around it.
Jokers and exposures: pause before you call
In NMJL-style American Mahjong, jokers can help in certain matching groups, including pungs, kongs, and quints. They are not used in singles or pairs. Always follow the current rules and the specific card line you are playing.
Some lines are marked “Concealed” and must stay hidden during play. Other lines allow exposures under the rules. Before calling a discard, check that the line permits it and that the tile completes the group exactly as shown. The American Mah Jongg Association’s rules guide explains calls, exposures, jokers, and declaring Mah Jongg.
A friendly way to build your hand
- Keep a few options open. After the deal, spot two or three card lines that use tiles you already have.
- Use the Charleston with a plan. Pass tiles that do the least work for your likely lines, and notice when the incoming tiles point you in a better direction.
- Recheck after each turn. Ask whether your tiles can still become one complete line. If not, pivot while you still can.
- Call only when the line still works. An exposure can reveal your plan, so confirm the row and its rules first.
- Verify before declaring. When you have 14 tiles, check every group and rule against the same complete line, then call “Mah Jongg.”
New to hosting, too? Our guides to planning a relaxed mahjong night and choosing the accessories you need can help make practice feel easy. For more gift ideas, browse thoughtful mahjong gifts for every kind of player.
Quick answers
Does every American Mahjong hand use four sets and a pair?
No single template covers every American Mahjong hand. Build the complete pattern printed on one line of the current NMJL card.
Can a joker stand in for a pair?
No. In NMJL-style play, jokers can be used in eligible matching groups such as pungs, kongs, and quints, but not in pairs or singles.
Do the winning hands change?
Yes. The NMJL publishes a new card each year. Check the current NMJL card whenever a new card is released.
Once you start reading the card one line at a time, the rack begins to tell a story. Keep the card nearby, stay flexible through the Charleston, and let the table help you learn.