第527局 孤軍四戰
1 手
孤军四战 — "A Lone Force Fighting on Four Sides" Problem 527 of 適情雅趣, volume 6 (卷六). The source gives its answer in prose rather than as a line, which is what a draw study usually needs: 「红先保和局」 「挂角照将后退马吃车，成单兵和单相。」 Transcribed from http://www.dpxq.com/hldcg/search/view_u_43244.html