Rinshan kaihou: Difference between revisions

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== Setting up rinshan kaihou ==
== Setting up rinshan kaihou ==


Like any hand, this yaku requires [[tenpai]] to even have a chance of winning.  This is particularly true when kan is involved.  As such, the fourth tile for kan counts as an extra tile.  If that tile is in the hand, it actually takes up one tile space, that could be used for normal hand development.
Like any hand, this yaku requires [[tenpai]] to even have a chance of winning.  While the hand retains a tile for a timed kan call, the hand would at best be at 1-shanten.  As such, the fourth tile for kan counts as an extra tile.  If that tile is in the hand, it actually takes up one tile space, that could be used for normal hand development.  Therefore, tenpai is acquired upon a needed tile draw.


Tenpai, with chance for rinshan:
'''Tenpai, with chance for rinshan:''' [http://tenhou.net/0/?log=2013011715gm-0009-7447-0bef5c3f&tw=1&ts=10 Example]
: {{#mjt:5m123p55568s6666z}} Draw: {{#mjt:0m}}  Waiting for: {{#mjt:7s}}
: {{#mjt:5m123p55568s6666z}} Draw: {{#mjt:0m}}  Waiting for: {{#mjt:7s}}


In order for this hand to proceed to tenpai, either kan must be called or one of the hatsu is to be discarded.
The 5-man draw places this hand in tenpai with a tile needed to be discarded.  In order for this hand to proceed to tenpai, either kan must be called or one of the hatsu is to be discarded.  If after the kan, a dead wall draw of 7-sou awards rinshan kaihou.  Otherwise, the unwanted rinshanpai may be discarded and riichi be called.


== Compatability ==
== Compatability ==
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