第540局 鸳鸯交颈
1 手
鸳鸯交颈 — "Mandarin Ducks Entwine Their Necks" Problem 540 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: 「双马保和局」 「双马连环，帅走闲着，这是双马守和单车的最佳形势。」 Transcribed from http://www.dpxq.com/hldcg/search/view_u_4325…