双后前兵开局

shuāng hòu qián bīng kāi jú

same as 封閉性開局|封闭性开局

Double Queen Pawn Opening; Closed Game (chess)

shuāng

two

hòu

back

qián

front

bīng

soldiers

kāi

to open (transitive or intransitive)

cramped; narrow