22. Four States at Peace with Two
Wondrous Variations Manual, Part 1: 48 classical compositions
20 moves
四国和二 — "Four States at Peace with Two" Problem 22 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_286858.html