Mahjong Dots, Bams, and Craks

Dots, bams, and craks are the three numbered suits used in American mahjong. Each suit contains four copies of every number from one through nine. The card often uses these suits in relationships rather than naming one fixed suit, so players must understand both the physical tiles and the abstract suit roles shown by color.

Dots

Dots use circles or coin-like symbols. Count the circles to identify the number. One dot may be especially ornate.

Bams

Bams use bamboo-like sticks. One bam is the exception and usually shows a bird.

Craks

Craks combine a Chinese number character with a red character beneath it. Focus on the upper character to identify the number.

Card colors do not name fixed suits

Colors printed on the annual card show suit relationships. A three-color line normally needs three different suits. The player chooses which physical suit fills each color role unless the line names a suit or matching dragon.

Common visual traps

One bam versus a flower

One bam shows a bird but remains a numbered suit tile.

Dense dot patterns

Six, eight, and nine dots can look similar at a glance. Count the circles.

Crak characters

The red lower character repeats across the suit. Learn the upper number characters through comparison.

Practice routine

Sort each suit from one through nine.
Reveal mixed tiles one at a time.
Name the number and suit aloud.
Practice one bam until it is never mistaken for a flower.
Find one-, two-, and three-suit examples on the card.

Numbered-suit questions

Can a joker represent any numbered tile?

Only inside an eligible group of three or more identical tiles.

Is one suit stronger than another?

No. Their value depends entirely on the chosen hand and tile availability.

Do card colors match tile ink colors?

No. Card colors show relationships between suits.

Connected Numbers Are Only Useful in Context

All three numbered suits contain the numbers one through nine, with four natural copies of each number. The artwork is a recognition aid, not a separate scoring system. A red-painted five is still identified by its number and suit; its decorative color alone does not make it a joker or bonus tile in American play.

Traditional mahjong strategy often values adjacent middle numbers because they can form three-tile sequences. For example, four and five of one suit can connect with a three or six. That is useful traditional sequence logic, but it does not establish a legal American exposure or winning structure.

On an American card, consecutive numbers must fit the exact listed pattern, group sizes, and suit arrangement. A run section may use consecutive values without allowing a player to expose a three-tile chow. Read the grouping as well as the numbers. The card’s printed color system concerns the required relationship between suits, not the physical ink colors on your tiles.

This changes how you evaluate a rack. Do not automatically keep middle numbers and discard ones or nines. A terminal tile can be essential to a listed American hand, while adjacent middle numbers may fit none of your realistic candidates. The stronger choice is the one supported by the card and the live natural tiles.

Try This at the Table

Compare two possible card hands using the same rack. Mark every tile by both number and suit. Count a tile as useful only if you can point to its exact position; avoid crediting one tile to two positions in the same candidate.