第421局 內攻外御
7 手
内攻外御 — "Attack Within, Defend Without" Problem 421 of 適情雅趣, volume 5 (卷五). Transcribed from http://www.dpxq.com/hldcg/search/view_u_43138.html
7 手
内攻外御 — "Attack Within, Defend Without" Problem 421 of 適情雅趣, volume 5 (卷五). Transcribed from http://www.dpxq.com/hldcg/search/view_u_43138.html