25. Each Guards Its Own Frontier

Wondrous Variations Manual, Part 1: 48 classical compositions

16 moves

各守封疆 — "Each Guards Its Own Frontier" Problem 25 of 百变神妙象棋谱, volume 2 (神妙变化象棋谱（全55局）). Transcribed from http://www.dpxq.com/hldcg/search/view_u_286883.html