What is Three concealed triplets (サンアンコー)?
Three triplets completed without calling — 2 han.
Han and calls
2 han（Open is fine）
How it is formed
- Three of your sets must be triplets you completed yourself; closed kans count too.
- The fourth set may be a run or a called triplet.
- A triplet completed by winning on a discard counts as open.
Example hand
Winning with this shape gives the following.
- Yaku scored：Three concealed triplets・Menzen tsumo
- Fu：40 fu／3 han
- Points for this example：5,200 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 concealed triplets?
2 han, whether the hand is closed or open.
Does Three concealed triplets count on an open hand?
Yes. It still counts after pon, chi or kan.
Does a triplet finished by ron count as concealed?
No — it counts as open. The same shape completed by a self-draw would be concealed.
Now put it to work
Last updated 2026-09-14 · Run by Qdan, Inc.