057七擒七縱

《韜略元機》殘局譜:一百七十六局古譜殘局

35 手

七擒七纵 — "Seven Captures, Seven Releases" Problem 57 of 韬略元机, volume 2 (韬略元机残局谱). Transcribed from http://www.dpxq.com/hldcg/search/view_u_43691.html