Fewer Stoves, Marching Troops 减灶行兵

✓ Engine-verifiedBook result: Red winsMate in 20夢入神機

📚 Mengru Shenji — a Ming-dynasty endgame manual

楚河漢界cotuong.synerworlds.com象士將象炮兵兵士兵兵傌傌馬兵卒馬卒帥cotuong.synerworlds.com

No chariots, no cannons — Red has only two knights and five pawns, yet the machine confirms: Red checkmates in 20 moves. The opponent, meanwhile, is nearly complete: both advisors, both elephants, two knights and a cannon. This is a position of patience and camouflage, exactly like its name: “reducing the stoves” was Sun Bin's ruse — cooking fewer stoves each day so the enemy believed his army was deserting and melting away. The end of that trap at Maling, with the words carved on a tree trunk that Pang Juan read by his own torchlight, is told in the anecdote below; the position comes from Mộng Nhập Thần Cơ. Here on the board: do you have the patience to walk two knights through the whole 20-move road?

✓ Engine-verified — The Fairy-Stockfish engine (NNUE) confirms Red checkmates in 20 moves — the main line was checked move by move, every move legal. Date checked: 2026-11-03.

📖 Anecdotes

The enemy lights a torch to read his own death warrant — and the flame is the signal to kill him

On a tree trunk by the road were a few words in white. The pursuing general lit a torch to read them: "Pang Juan dies beneath this tree." He had barely finished when ten thousand arrows rained from the dark forest — the torch he himself had lit was the signal to begin the ambush. The man who set…

— Đội ngũ SynerWorlds

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

Source
夢入神機 第121局
Book result
Red wins
Verification
✓ Engine-verified
Side to move
Red to move
Difficulty
Hard
Red forces
King, Horse ×2, Pawn ×5
Black forces
King, Advisor ×2, Elephant ×2, Horse ×2, Cannon, Pawn ×2
FEN
2bak1bcP/3PaP3/4P4/5N1N1/9/5n3/4P4/p4n3/4p4/5K3 w
Transcribed from
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Solution