26. Knotted Grass and the Returned Ring
Elegant Pastime Manual, Vol. 1: 92 classical compositions
21 moves
结草衔环 — "Knotted Grass and the Returned Ring" Problem 26 of 適情雅趣, volume 1 (卷一). Transcribed from http://www.dpxq.com/hldcg/search/view_u_42834.html