第483局 保障堅牢
1 手
保障坚牢 — "The Defence Holds Fast" Problem 483 of 適情雅趣, volume 6 (卷六). The source gives its answer in prose rather than as a line, which is what a draw study usually needs: 「车炮保和局」 「红法各子已归位，黑双车无机可乘。」 Transcribed from http://www.dpxq.com/hldcg/search/view_u_43200.html