Menzen Tsumo (門前清自摸和)
1 han
Self-draw on a closed hand.
How Menzen Tsumo (門前清自摸和) works
Menzen Tsumo is winning by self-drawing the final tile while the hand is fully concealed (no calls).
If you draw your winning tile from the wall rather than claiming a discard, and your hand has no open melds, you earn this yaku. It is the closed-hand self-draw counterpart to winning by ron. It frequently appears alongside riichi, pinfu, and tanyao on a concealed hand.
Good to know
- •Requires a fully closed hand; an open hand self-draw earns no yaku from this.
- •Stacks with riichi, ippatsu, pinfu and most other closed-hand yaku.
- •Pinfu plus tsumo always scores a fixed 20 fu, a notable interaction for scoring.
Menzen Tsumo (門前清自摸和) — FAQ
Can I claim tsumo if I called a chow earlier?
No. Any call opens the hand, so a self-draw on an open hand does not grant Menzen Tsumo.
Is a closed kan allowed with tsumo?
Yes. A concealed (closed) kan keeps the hand closed, so it does not block Menzen Tsumo.
Other 1-han yaku