Iipeikou

This artice is just a stub!.. would like a 'infobox' with Han:1, Concealed, commonness?, etc..

Two completely identical shuntsu in the same suit. It does not combine with Chiitoitsu.

• 1 fan yaku
• must be consealed

Common used English terms

• Double Sequence
• Double Run

Statistics

how common it is, how common it's combined with different yakus

hard facts about how easy/hard it statistically would be

Combineable yakus

• pinfu
• yakuhai
• tanyao
• etc

Other rulesets

... though like, Chinese : gives x points etc...