Sanankou: Difference between revisions

put compatability in a 2= section, for consistentcy
m (→‎Tile pattern cases: swap suits to make it easier (case #2 was changed in the previous edit to show that you can have a closed sanankou hand that does not qualify for suuankou))
(put compatability in a 2= section, for consistentcy)
 
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* [http://tenhou.net/0/?log=2012110819gm-0009-7447-b68a0585&tw=2&ts=4 Sanankou] [[tenpai]] for [[suuankou]]
* [http://tenhou.net/0/?log=2012110819gm-0009-7447-b68a0585&tw=2&ts=4 Sanankou] [[tenpai]] for [[suuankou]]
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'''Sanankou''' {{kana|三暗刻}} is a yaku consisting of three concealed triplets ([[ankou]]). The third must not be completed off of another player's [[ron|discard]], as this would not count as concealed. However, if the 3rd triplet is completed with a [[tsumo]], or completed before reaching tenpai, then the yaku is awarded. A [[Kan#Ankan|concealed kan]] is also counted as a concealed triplet. This yaku may be scored with an open or closed hand, and is worth 2 han.
'''Sanankou''' {{kana|三暗刻}} is a standard yaku, obtained when you have three concealed triplets ([[ankou]]). A [[Kan#Ankan|concealed kan]] counts as a concealed triplet. It can be completed with an open or closed hand.
 
The third triplet may ''not'' be completed off another player's [[ron|discard]] ([[ron]]), as the triplet would not be "concealed". However, the third triplet may be completed by [[tsumo]]. Sanankou and the related [[suuankou]] are the only two yaku that care whether the ''tile group'' is closed; all other yaku only check if ''the hand'' itself is closed.


==Tile pattern cases==
==Tile pattern cases==
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This yaku requires three closed [[Mentsu#Koutsu|triplets]], as it is defined as such. This leaves room for one [[Naki|tile call]], which can be of any [[mentsu|tile group]].
This yaku requires three closed [[Mentsu#Koutsu|triplets]], as it is defined as such. This leaves room for one [[Naki|tile call]], which can be of any [[mentsu|tile group]].


=== Compatibility ===
=== Suuankou tenpai ===
A closed tenpai hand with both sanankou and [[toitoi]] is tenpai for [[suuankou]].  When this hand wins by discard, then the hand is not counted as suuankou.  Instead, it is the combination of sanankou and toitoi.  The fourth triplet completed by the discarded tile counts as an "open triplet", rather than a fourth closed one.
 
== Compatibility ==
{{main|Yaku compatibility}}
{{main|Yaku compatibility}}


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Sanankou is incompatible with any yaku requiring more than one sequence, namely [[pinfu]], [[iipeikou]], [[ittsu]], [[sanshoku]], and [[ryanpeikou]]. It is incompatible with [[chiitoitsu]], which requires no [[mentsu]] at all.
Sanankou is incompatible with any yaku requiring more than one sequence, namely [[pinfu]], [[iipeikou]], [[ittsu]], [[sanshoku]], and [[ryanpeikou]]. It is incompatible with [[chiitoitsu]], which requires no [[mentsu]] at all.


A natural combination involves [[toitoi]]. With one tile call, the hand needs to win by tsumo; otherwise by ron, only toitoi is counted. This premise is a similar case involving suuankou, which counts as yakuman via tsumo.  Otherwise, it may not.
A natural combination involves [[toitoi]]. With one tile call, the hand needs to win by tsumo; otherwise by ron, only toitoi is counted. This premise is a similar case involving suuankou, which counts as yakuman via tsumo, or sanankou if ron.
 
=== Suuankou tenpai ===
A closed tenpai hand with both sanankou and [[toitoi]] is tenpai for [[suuankou]].  When this hand wins by discard, then the hand is not counted as suuankou.  Instead, it is the combination of sanankou and toitoi.  The fourth triplet completed by the discarded tile counts as an "open triplet", rather than a fourth closed one.


==External links==
==External links==
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