一着不慎，满盘皆输 (一著不慎，滿盤皆輸) zhāo bùshèn, mǎnpán jiē shū

zhāo bùshèn, mǎnpán jiē shū phrase One careless move and the whole game is lost.
Domain: Proverb 谚语
Notes: (CC-CEDICT '一著不慎，滿盤皆輸')