What is Big three dragons (ダイサンゲン)?
Triplets of all three dragons — a yakuman.
Han and calls
Yakuman
How it is formed
- Make triplets or kans of the white, green and red dragons.
- The remaining set and pair are free.
- Calling is allowed.
Example hand
Winning with this shape gives the following.
- Yaku scored：Big three dragons
- Fu：25 fu／Yakuman
- Points for this example：48,000 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 Big three dragons?
It is a yakuman (Yakuman on this site).
Does Big three dragons count on an open hand?
Yes. It still counts after pon, chi or kan.
Is there a liability rule for big three dragons?
Yes. Whoever lets the third dragon be called pays it all on a self-draw, or half on a discard win.
Now put it to work
Last updated 2026-09-14 · Run by Qdan, Inc.