Slaying Generals at Four Passes 四关斩将

📖 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兵士將士象砲象傌俥俥兵兵卒車卒帥卒cotuong.synerworlds.com

The name promises a slaughter — “Slaying Generals at the Passes” — but the board is strangely calm: the armies are nearly level, Red has one extra chariot while Black keeps the full advisor–elephant palace guard, and the old book concludes a draw. The name comes from chapter 27 of the Romance of the Three Kingdoms: Guan Yu crossing five passes and slaying six generals to return to Liu Bei. There is just one oddity: the novel says five passes, this composition says four. Why one pass is missing, nobody has ever explained — the anecdote below also tells how the Uyên Thâm Hải Khoát containing this position nearly vanished, surviving only as the hand-copied manuscript of a poor scholar. Can you spot any detail that explains the number four?

📖 Anecdotes

Five passes in the novel, four in the position — where did one go?

Everyone who reads the Romance knows the ride by heart: Guan Yu crossed FIVE passes and slew SIX generals to return to Liu Bei. So why does this famous composition call itself FOUR passes? One pass has gone missing — and no book explains where it went. Do you know? In chapter 27 of the Romance,…

— Đội ngũ SynerWorlds

The book behind this position nearly vanished from the world

This position survives only because of a chain of accidents: a poor scholar who could not afford to print his book, copies passed hand to hand for 125 years, and one master who was allowed to borrow the manuscript for a single night. How close did it come to being lost forever? The manual Uyên…

— Đội ngũ SynerWorlds

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

Source
淵深海闊 第81局
Book result
Draw
Verification
📖 As recorded in the classical books
Side to move
Red to move
Difficulty
Hard
Red forces
King, Horse, Chariot ×2, Cannon, Pawn ×3
Black forces
King, Advisor ×2, Elephant ×2, Chariot, Pawn ×3
FEN
1P1ak4/4a4/b1C1b4/9/6NRR/9/P7P/3p5/1r3p3/3K3p1 w
Transcribed from
xqipu.comdpxq.com

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