ㄨㄤˇwǎngㄎㄞkāiㄙㄢsānㄇㄧㄢˋmiàn

  1. 商湯四面放開一面故事史記··本紀》。比喻寬大仁厚犯錯人從處置·劉禹錫〉:網開三面自新錄用。」兒女英雄傳·一回》:再說當年大盜那樣翻江倒海尚且網開三面招撫。」網開一面」。嚴刑峻法嚴懲不貸

to leave the net open on three sides (idiom)​; let the caged bird fly, to give one's opponent a way out, lenient treatment
jdm. noch einen Ausweg offen lassen (Sprichw)​