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Chankan: Difference between revisions
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Essentially, chankan combines that utilizes the [[machi|tile waits]] of either [[ryanmen]] or [[kanchan]]. That excludes [[toitoi]], [[chiitoitsu]], and [[honroutou]]. These three require the tile waits of either [[shanpon]] or [[tanki]]; and so, the fourth tile to invoke kan is used in another player's hand. As for [[ryanpeikou]], this hand may use ryanmen for completion. However, the tile requirement for ryanpeikou is already in the hand. Otherwise, chankan invoked with a ryanpeikou tenpai hand would only count for [[iipeikou]]. | Essentially, chankan combines yaku, that utilizes the [[machi|tile waits]] of either [[ryanmen]] or [[kanchan]]. Either of these two tile waits do not include the waiting tile in the hand. That excludes [[toitoi]], [[chiitoitsu]], and [[honroutou]]. These three require the tile waits of either [[shanpon]] or [[tanki]]; and so, the fourth tile to invoke kan is used in another player's hand. As for [[ryanpeikou]], this hand may use ryanmen for completion. However, the tile requirement for ryanpeikou is already in the hand. Otherwise, chankan invoked with a ryanpeikou tenpai hand would only count for [[iipeikou]]. | ||
As for [[rinshan]], [[haitei]], [[houtei]], and [[mentsumo]], it is physicially impossible to combine any of these four with chankan. In the case for rinshan, the possibility to combine with chankan is outright impossible, as rinshan is defined by winning from the dead wall tile draw. In the case of haitei and houtei, a player cannot call kan, when the dead wall cannot be maintained at 14-tiles. This case occurs, at the last allowable tile draw of the hand. | As for [[rinshan]], [[haitei]], [[houtei]], and [[mentsumo]], it is physicially impossible to combine any of these four with chankan. In the case for rinshan, the possibility to combine with chankan is outright impossible, as rinshan is defined by winning from the dead wall tile draw. In the case of haitei and houtei, a player cannot call kan, when the dead wall cannot be maintained at 14-tiles. This case occurs, at the last allowable tile draw of the hand. | ||