Menzenchin tsumohou: Difference between revisions

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* [http://tenhou.net/0/?log=2014012608gm-0009-7447-12a13787&tw=3&ts=8 Tsumo nomi] with some [[dora]].
* [http://tenhou.net/0/?log=2014012608gm-0009-7447-12a13787&tw=3&ts=8 Tsumo nomi] with some [[dora]].
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'''Menzenchin tsumohou''' {{kana|門前清自摸和}}, otherwise referred as '''menzen tsumo''' or even simpler '''tsumo''' {{kana|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''' {{kana|門前清自摸和}}, otherwise referred as '''menzen tsumo''' or even simpler '''tsumo''' {{kana|ツモ}}, is a yaku involving closed hands. If a player with a closed [[tenpai]] hand wins with a self drawn tile, this yaku is scored.


==Formation==
==Formation==
With this yaku, all closed hands qualify for menzen tsumo, even if it is the only yaku. No open hand may qualify for this yaku.  The instant a player [[Naki|calls on a discarded tile]], then the player forfeits the right to claim this yaku until the next hand, just like [[riichi]].
All closed hands can qualify for menzen tsumo. Declaring [[riichi]] is not required, so [[damaten]] hands can score this yaku. A hand can win even if its only yaku is menzen tsumo. No open hand may score this yaku - the instant a player [[Naki|calls on a discarded tile]], this yaku is invalidated.
 
==Riichi vs damaten==
{{main|Riichi|Damaten}}
 
While in tenpai with a closed, [[riichi]] is not a required move for any player.  Instead, the player opts to utilize the tactic of [[damaten]].  In some cases, the winning tile is drawn and the hand may win.


== Compatibility ==
== Compatibility ==
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{{Yaku compatibility table|SMO}}
{{Yaku compatibility table|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.
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 ===
=== With riichi ===
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