Iishanten: Difference between revisions

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'''Iishanten''' is the state of the hand, where one tile is needed to achieve [[tenpai]].  This is the [[Shanten|closest state of a hand]] to tenpai.
'''Iishanten''' is the state of the hand, where one tile is needed to achieve [[tenpai]].  This is the [[Shanten|closest state of a hand]] to tenpai.


==Four types==
==Main four types==
The four types are based on the possible configurations regarding complete and incomplete [[tile groups]].
The four types are based on the possible configurations regarding complete and incomplete [[tile groups]].


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=== Chiitoitsu ===
== Chiitoitsu ==
{{main|Chiitoitsu}}
{{main|Chiitoitsu}}


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Chiitoitsu achieves 1-shanten, when the developing hand is at five pairs.  That potentially leaves three individual tiles waiting to be paired. At least one of the tiles could be occupied as part of a triplet, which actually reduces possible pairing tiles down to two.
Chiitoitsu achieves 1-shanten, when the developing hand is at five pairs.  That potentially leaves three individual tiles waiting to be paired. At least one of the tiles could be occupied as part of a triplet, which actually reduces possible pairing tiles down to two.
== Kokushi musou ==
{{main|Kokushi musou}}


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