55. Letting Cao Go at Huarong, the Righteous Release at Huarong
Deep Abyss, Wide Sea: 346 classical compositions
38 moves
华容放曹、义释华容 — "Letting Cao Go at Huarong, the Righteous Release at Huarong" Problem 55 of 渊深海阔. Transcribed from http://www.dpxq.com/hldcg/search/view_u_84545.html