How to Read the American Mahjong Card (NMJL Card Explained)
The NMJL card looks like a secret code the first time you unfold it. Five minutes from now it will make complete sense — here is the decoder ring.
The Layout
The card is a folding pamphlet with hand categories printed in panels: year hands at the top, then 2468, Like Numbers, Addition, Consecutive Run, 13579, Winds–Dragons, 369, Quints and Singles & Pairs. Each category holds several specific hands, and each hand is one line of tiles with a value.
Colors = Suits
This is the key insight. Tiles on the card are printed in three colors, and color means suit — but any suit. A line showing a pung in blue and a kong in red means: one pung in any one suit, one kong in any different suit. A line printed all in one color means the entire hand is a single suit. Tiles described in words (“any wind”, “any dragon”, “any flower”) are suit-free.
Letters and Markings
- X — exposable: you may call discards to build this hand.
- C — concealed: draw everything yourself; only the winning tile may be called.
- The number at the end of the line — the hand’s value (25–75 points).
- Parenthetical notes — special conditions (“any 3 suits”, “these numbers only”).
A One-Minute Method for Finding a Hand
- Count your jokers and flowers first — they open whole categories.
- Find your longest number run or most-repeated number.
- Open the matching category and scan for lines your tiles already half-fill.
- Check the color pattern suits your suits — literally.
- Confirm X or C fits how exposed you already are.
Practice Makes Fast
Reading the card in under a minute takes a few weeks of games. Speed it up with the printable cheat sheet and the beginner hand chart, and review the full system in American mahjong hands explained.