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Ippatsu: Difference between revisions
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{{main|Yaku compatability}} | {{main|Yaku compatability}} | ||
{{Yaku compatibility table|IPP}} | {{Yaku compatibility table|IPP}} | ||
Ippatsu is unique among the yaku, for it requires riichi to even be applicable. Because of this, it is impossible for a hand to | Ippatsu is unique among the yaku, for it requires riichi to even be applicable. Because of this, it is impossible for a hand to score with ippatsu alone. Ippatsu ''can'' combine with [[chankan]], as the kan call is not considered complete if someone wins off it. | ||
At the very minimum, a hand could be riichi with ippatsu. Unlike riichi, ippatsu is not compatible with every other yaku. Two cannot mix with ippatsu: [[rinshan kaihou]] and [[houtei raoyui]]. | |||
Regarding rinshan kaihou, the required call for [[kan]] to invoke rinshan already cancels out ippatsu. With one single tile left in the regular wall, the last chance to call kan is allowable. This may imply the rinshan draw as the "last possible tile draw". However, that tile came from the dead wall as opposed to the regular wall, which is not the definition for the haitei. | |||
As for houtei, a riichi declaration must be made with at least 4 tiles left in the live wall. That leaves the very last possible tile draw (and discard) belonging to the riichi declarer. | |||
===With haitei=== | ===With haitei=== | ||