gameplay riichi

Menzen Tsumo

門前清自摸和

(めんぜんツモ)

Definition

A 1-han yaku for winning by self-draw with a closed hand. Abbreviated as 'tsumo' in scoring.

自摸

Winning by self-draw - completing your hand by drawing the winning tile yourself. All three opponents pay a portion of the total.

門前清

Closed hand - a hand with no called melds (chi, pon, or open kan). Required for many yaku and adds 10 fu when winning by tsumo.

役

Scoring patterns or hands. You must have at least one yaku to win (except with riichi). Each yaku is worth a certain number of han.