Two Swallows Vie in Flight 双燕争飞

✓ Engine-verifiedBook result: Red winsMate in 11夢入神機

📚 Mengru Shenji — a Ming-dynasty endgame manual

楚河漢界cotuong.synerworlds.com兵士將車士傌傌砲卒卒馬帥cotuong.synerworlds.com

Red to move and mate in 11 — and every one of Red's eleven moves is a check. The 'two swallows' of the name are Red's two Knights, darting in turn; beside them Red has only a Cannon and a Pawn, while Black keeps a Rook, two Advisors, a Knight and two Pawns. Eleven checks in an unbroken chain, and the mate arrives on the final move. Position 112 of Mộng Nhập Thần Cơ — one of the oldest xiangqi books in existence, lost for centuries until a copy resurfaced in 1949 for sale at a grocery stall in a market, as the Anecdotes section tells. Can you keep a checking chain alive for eleven moves without letting it snap?

✓ Engine-verified — Two independent transcriptions (the endgame dataset from the Đông Bình classical books and the canju12 problem bank) agree character for character. The classical book's main line, replayed with the game's own engine: all 21 moves legal, ending in checkmate for Red — exactly mate_in 11 (2×11−1 moves); the source dataset also records Pikafish confirming checkmate in 11.

📖 Anecdotes

双燕争飛――そして市場の食料品売り場で見つかった失われた書

現存する最古級のシャンチー書の一つが何世紀も失われていて、1949年についに一冊が再び姿を現したとき、それは図書館でも学者の箪笥でもありませんでした。市場の食料品売り場で売られていたのです。明代の宝物が野菜の間で何をしていたのでしょうか? その書は『夢入神機』。現存する最古のシャンチー残局作品集の一つで、その大半は長く失われていました。1949年、研究者の鄭国鈞が市場の食料品売り場でこの一冊を見つけ、購入しました。本の歴史におけるどんな救出にも劣らない偶然の救出です。 本作はその第112局で、完全に検証されています。紅は11手で詰ませ、紅の手はすべて王手です。二枚の馬、一枚の炮、そして河を…

— Đội ngũ SynerWorlds

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

Source
夢入神機 第112局
Book result
Red wins
Verification
✓ Engine-verified
Side to move
Red to move
Difficulty
Hard
Red forces
King, Horse ×2, Cannon, Pawn
Black forces
King, Advisor ×2, Horse, Chariot, Pawn ×2
FEN
1P1ak3r/4a4/9/6N2/6N2/9/9/C8/3p1p1n1/4K4 w
Transcribed from
GitHub · yingwang/chinese_chess_mobileGitHub liudada1980/canju12: 一二残局专属题库/古谱-梦入神机胜局.txt

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