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During the Spring and Autumn period, Sun Wu (Sun Tzu) from the State of Qi was invited by King Helü of Wu to write books and give lectures in Wu.
After some time, King Helü wanted to see Sun Wu's true abilities. Sun Wu famously used palace maids to drill as soldiers for the king, showcasing his military discipline. Impressed, the king appointed him as the Supreme General.
In 506 BC, Sun Wu led 30,000 elite soldiers to attack the State of Chu, annihilating over 200,000 Chu troops. This decisive victory became a classic example of 'one against ten', highlighting the immense power of strategy and skilled combatants.

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Open the tool →以一当十 (yǐ yī dāng shí) is a Chinese idiom (chengyu) meaning “to be exceptionally brave and capable in battle, where one person or a small group can contend with or defeat a much larger force; to fight with the strength of ten men”.
以一当十 is pronounced yǐ yī dāng shí in Mandarin Chinese.
Literally, 以一当十 means “one against ten”. It is used to mean “to be exceptionally brave and capable in battle, where one person or a small group can contend with or defeat a much larger force; to fight with the strength of ten men”.
以一当十 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
当:相当。一个人抵挡十个人。形容军队英勇善战。