Tsuiisou (字一色)
13 han
All honors.
Example winning hand
Winning tile: 5z
How Tsuiisou (字一色) works
Tsuiisou (all honors) is a yakuman in which every tile is an honor — only winds and dragons, no number tiles at all.
The hand consists entirely of wind and dragon tiles arranged as triplets and a pair (and, because only honors are used, it is necessarily an all-triplets shape). It works open or closed. It frequently overlaps with yakuhai, toitoi, and sometimes shousangen or the four-winds yakuman within the same honor-only hand.
Good to know
- •Zero number tiles — the entire hand is winds and dragons.
- •Inherently all-triplets, so it also overlaps with toitoi and yakuhai.
- •Can co-occur with shousangen, daisangen, or the four-winds yakuman depending on the honors used.
Tsuiisou (字一色) — FAQ
Can tsuiisou contain a run?
No. Honor tiles cannot form runs, so an all-honors hand is always composed of triplets and a pair.
Does tsuiisou stack with dragon or wind yakuman?
Yes. If the honors also form daisangen or daisuushii, those yakuman can combine with all honors for an even larger score.
Other 13-han yaku