TWIN SEQUENCES / IIPEIKŌ

Han: 1 han
Closed only
Difficulty: ★★☆☆☆

Requirement:

  • Two identical sequences in the same suit

Meaning:
A small internal efficiency reward. Can become Ryanpeikou if doubled.

Good with:
Pinfu / Tanyao / Riichi / Menzen Tsumo

Cannot combine:
Open-hand versions