Menzenchin tsumohou

Revision as of 02:22, 11 June 2024 by Hordes (talk | contribs) (this is not an article a/b riichi, it's about mentsumo (remove riichi vs dama section))

Menzenchin tsumohou 「門前清自摸和」, otherwise referred as menzen tsumo or even simpler tsumo 「ツモ」, is a yaku involving closed hands. Literally, a player with a closed tenpai hand may win with tsumo, as this is a yaku all on its own.

Menzenchin tsumohou
Type Yaku
Kanji 門前清自摸和
English Self draw
Value 1 han (closed only)
Speed Varies
Difficulty Varies

Formation

All closed hands qualify for menzen tsumo, even if it is the only yaku. Declaring riichi is not required. No open hand may qualify for this yaku - the instant a player calls on a discarded tile, this yaku is invalidated.

Compatibility

^ Ippatsu requires riichi to be of any use.

RCH DRI IPP SMO TAN PFU IPK ITT YAK SDJ SDO TOI SNA SNK CHA JUN RPK SSG HRO HON CHN CHI RIN HAI HOU CHK
SMO                                                  

Menzen tsumo with toitoi is actually the yakuman, suuankou. Otherwise, this yaku is compatible with all yaku except for houtei and chankan. Neither of those two yaku can win by self-draw.

With riichi

This yaku is typically accompanied with riichi. Of course, the use of riichi is only advisable on the current state of the game: current point standing, other player riichi calls, potentially threatening hands, tile waits, and tile availability. At times, it may simply be advisable to utilize damaten, rather than putting oneself at risk.

External links

Menzenchin tsumohou in Japanese Wikipedia