An Ambush from Ten Sides 十面埋伏

📖 As recorded in the classical booksBook result: Draw淵深海闊

📚 Yuanshen Haikua — a Qing-dynasty endgame manual

楚河漢界cotuong.synerworlds.com炮士將兵兵車象兵兵車兵砲砲馬俥相俥卒卒帥cotuong.synerworlds.com

Red to move, and Red holds the bigger army — two chariots, two cannons and a solid row of five pawns — yet the old book concludes only: draw. The name explains the trap: Black's smaller force is curled into one compact block, and every Red attack runs into a siege wall built in reverse. “An Ambush from Ten Sides” names the classic encirclement at Gaixia in 202 BC, where Xiang Yu heard the songs of his homeland Chu rising from all four sides in the night and understood that Chu was already lost. The anecdote below retells that night — and what broke an army before the battle had even begun. The position is no. 174 of Uyên Thâm Hải Khoát, one of the four great classical endgame manuals. Can you find any way to break this balance — or is a draw the only possible ending?

📖 Anecdotes

십면매복: 초나라 노래가 항우를 에워싼 밤

해하(垓下)에 갇힌 군대가 어둠 속에서 섬뜩한 소리를 들었다. 사방에서 들려오는, 자기 고향의 민요였다. 한신의 매복은 칼이 뽑히기도 전에 완성돼 있었다. 그 소리 자체가 항우의 군사들에게 고향이 이미 함락됐음을 알렸기 때문이다. 대체 그것은 어떤 무기였을까? 《사기》는 202년 BC 해하의 최후를 담담히 기록한다. 한신의 군이 항우를 ‘열 겹’으로 에워쌌고, 밤이 되자 포위군은 사방에서 초나라 노래를 불렀다. 그 소리를 듣고 항우는 초나라가 이미 빼앗겼을 것이라 외쳤고, 최후의 돌격이 있기 전에 군의 전 의지가 꺾였다. 이어…

— Đội ngũ SynerWorlds

Stories around this position — storytelling, not part of the engine-verified content.

Source
淵深海闊 第174局
Book result
Draw
Verification
📖 As recorded in the classical books
Side to move
Red to move
Difficulty
Hard
Red forces
King, Elephant, Chariot ×2, Cannon ×2, Pawn ×5
Black forces
King, Advisor, Elephant, Horse, Chariot ×2, Cannon, Pawn ×2
FEN
1c1a1k3/3PPr3/b1PP1rP1C/8C/9/9/4n4/R3B3R/4p4/1p1K5 w
Transcribed from
xqipu.comdpxq.com

Open this position in the app: try it against the computer or watch the engines play it out.

▶ Play this study

Load this position into the Setup editor: rearrange it, edit it and try your own variations.

🧩 Open in Setup