开局 kāijú early stage Origin Definitions Defs Strokes Stroke Words Sentences Sents 双后前兵开局 shuānghòuqiánbīngkāijú Double Queen Pawn A chess opening starting with the moves 1. d4 d5, also known as the Closed Game.封闭性开局 Fēngbìxìng Kāijú closed game a category of chess openings beginning with the moves 1. d4 d5 (Double Queen Pawn Opening)