Hand Types

Concealed hand

Also called: closed hand, 門前清, menzen

A hand with no open melds — every meld is formed from your own draws.

A concealed (closed) hand is one where you never called chi, pon, or open kan during the round. Every variant rewards concealment: Riichi requires it for many yaku (pinfu, iipeikou, riichi itself), MCR gives 2 fan for Concealed Hand and 4 fan for Fully Concealed Self-Drawn, HK gives 1 faan, and Taiwanese gives 1 tai. Concealed-only kans count as concealed.

Related terms

Open hand
A hand with at least one declared meld from calling chi, pon, or kan.
Tsumo
Winning by drawing your winning tile yourself from the wall.
Ron
Winning by claiming another player's discard — they 'dealt in' to you.