📖 As recorded in the classical booksBook result: Draw淵深海闊
📚 Yuanshen Haikua — a Qing-dynasty endgame manual
Both sides stand nearly complete: Red has two chariots, two cannons, a knight and both elephants; Black fields the same heavy pieces, a pair of palace advisors, and two extra pawns. Red to move, and the manual Uyên Thâm Hải Khoát (game 255) concludes: draw. Between armies this even, any edge can only lie along a route the eye cannot see — the very spirit of this position's name.
'The Secret March to Chencang' is the eighth of the Thirty-Six Stratagems: one army repairs a mountain road noisily in broad daylight for all to watch, while the real army slips through a pass in another direction, by night. That opening gambit of Liu Bang's bid for empire in 206 BC is told below. Back to the board: in a position that seems to hide nothing, which Red force is the 'noisy road crew' — and which marches through the dark?