◇ Just read — no move neededThe horse is the difference
Swap one advisor for a horse and the famous fortress falls — 单车必胜马双士. The reason is mobility: the advisors never have to move well, but the horse must — every jump it makes opens a line, and every jump it refuses leaves it shovel-stuck on the rim. Your plan is the hunt: park the chariot in front of the palace, drive the horse from posting square to posting square, and walk your own king up for the final squeeze — 帅助战, the king joining the battle, is what converts the last advisor.