two identical sequences twice; ryanpeikou
A mahjong hand consisting of two sets of two identical sequences (chows) in the same suit, plus a pair. Worth 3 han when the hand is concealed. Compare 一盃口 (iipeikou), which has only one pair of identical sequences.
from Chinese liǎng bēi kǒu
See also: 一盃口 (イーペーコー)
Ryanpeikou is a yaku that can only be completed with a concealed hand.
This hand is a combination of ryanpeikou and seven pairs.