Sanshoku doukou: Difference between revisions

'''Sanshoku doukou''' {{kana|三色同刻}} is a standard yaku. This yaku involves [[koutsu]] (triplets) of the same numbered tiles across the three [[Japanese mahjong#Mahjong tiles|main suits]].

Here, all three [[koutsu]] of number three are already on the hand, and sanshoku doukou is guaranteed for both tiles waited on.

This yaku is actually a fairly difficult yaku to complete. For every number across the three different suits, there are only 12 tiles. A sanshoku douko hand has to have 9 of the 12 tiles of one number. The 3 tiles of that number ''not'' in the hand has to be one of each suit, which yields pretty bad odds.

=== Compatibility ===

Sanshoku doukou is incompatible with any yaku requiring more than one sequence, namely [[pinfu]], [[iipeikou]], [[ittsuu]], [[sanshoku doujun]], and [[ryanpeikou]]. It cannot be combined with [[honitsu]] and [[chinitsu]], which require tiles of a single suit. [[Chiitoitsu]] requires seven pars, which precludes the triplets for sanshoku doukou. Finally, [[shousangen]]'s two dragon triplets do not leave enough room for the three triplets of suited tiles required.

 

Whether open or closed, this yaku remains at 2 han.