021功成身退

《韜略元機》殘局譜:一百七十六局古譜殘局

27 手

功成身退 — "Withdraw When the Work Is Done" Problem 21 of 韬略元机, volume 2 (韬略元机残局谱). Transcribed from http://www.dpxq.com/hldcg/search/view_u_43655.html