Chankan: Difference between revisions

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=== Kokushi musou ===
=== Kokushi musou ===
[[Image:Kokushi Denied.png|thumb|right|250px|Case where a [[kan|closed kan]] was declared during a [http://tenhou.net/0/?log=2013121107gm-0019-0000-b01e54cd&tw=1&ts=7 kokushi tenpai].]]
[[Image:Kokushi Denied.png|thumb|right|250px|Case where a [[kan|closed kan]] was declared during a [http://tenhou.net/0/?log=2013121107gm-0019-0000-b01e54cd&tw=1&ts=7 kokushi tenpai].]]
If the rules allow, a special case for [[kokushi musou]].  This involves a kokushi tenpai hand, where the final tile may be completed with an opponent calling [[kan]] with a closed kan using all four of that particular winning tile.  Thus, ron may be declared in that instance, involing the special chankan rule.  This is the only case where a tile may be taken from an closed kan.  However, this particular rule may be [[Yaku_variations#Kokushi_and_chankan|subject to variation]], which may or may not allow the play to occur.
If the rules allow, a special case for [[kokushi musou]] exists.  This involves a kokushi tenpai hand, where the final tile may be completed with an opponent calling [[kan]] with a closed kan using all four of that particular winning tile.  Thus, ron may be declared in that instance, involing the special chankan rule.  This is the only case where a tile may be taken from an closed kan.  However, this particular rule may be [[Yaku_variations#Kokushi_and_chankan|subject to variation]], which may or may not allow the play to occur.


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