What is Three colour straight (サンショクドウジュン)?
The same run in all three suits — 2 han closed, 1 when open.
Han and calls
2 han → 1 han
How it is formed
- Make the same three-tile run in characters, circles and bamboo — for example 2-3-4 in each.
- The remaining set and the pair are free.
- It still counts when open, for 1 han.
Example hand
Winning with this shape gives the following.
- Yaku scored：Three colour straight・Menzen tsumo
- Fu：30 fu／3 han
- Points for this example：6,000 points（Tsumo）
This opens the practice board with the hand already set up; press Tsumo to win with it.
Yaku it combines with
Questions
How many han is Three colour straight?
2 han closed, dropping to 1 han when you call.
Does Three colour straight count on an open hand?
Yes. It still counts after pon, chi or kan.
How is it different from three colour triplets?
Three colour straight uses runs; three colour triplets uses triplets and is worth 2 han open or closed.
Now put it to work
Last updated 2026-09-14 · Run by Qdan, Inc.