21. Cannon and Pawn Beat Elephant and Advisor (2)
Bamboo Fragrance Studio Manual, Vol. 1: 73 classical compositions
21 moves
炮兵胜象士2 — "Cannon and Pawn Beat Elephant and Advisor (2)" Problem 21 of 竹香斋象戏谱, volume 1 (初集). Transcribed from http://www.dpxq.com/hldcg/search/view_u_40526.html