Concealed Self-Draw (門清一摸三)
門清一摸三 — a fully concealed hand finished by self-draw scores 3 tai total, replacing the separate 1-tai Fully Concealed and Self Draw.
How Concealed Self-Draw (門清一摸三) works
A fully concealed hand finished by self-draw — 門清一摸三 — scores 3 tai total, replacing the separate Fully Concealed and Self Draw tai.
Under the dominant Taiwanese convention, a hand with no melds claimed from discards that is completed by the player's own draw scores a combined 3 tai: 1 for the concealment, 1 for the self-draw, and 1 extra as a reward for doing both at once. It is counted as this single entry, never together with the individual 1-tai Fully Concealed or Self Draw. Either condition alone remains worth 1 tai.
- •門清 alone (concealed, win on a discard) is 1 tai; 自摸 alone (self-draw with an open hand) is 1 tai; together they become 3 tai total, not 2.
- •Concealed kongs declared from the hand generally do not break concealment, though tables vary.
- •It stacks freely with structural patterns such as flushes, All Pungs, and the concealed-pung ladder.
Concealed Self-Draw (門清一摸三) — FAQ
Why 3 tai and not 2?
The convention 門清一摸三 ('concealed, one draw, three') grants a bonus tai for achieving both conditions at once — 1 + 1 + 1 extra = 3 tai total.
Is it counted together with Fully Concealed or Self Draw?
No. When both conditions hold, only this combined 3-tai entry is scored; the separate 1-tai entries apply only when one condition holds without the other.