Zhuge Liang turned the trick back on them and crushed Cao's army.
Tips
history
Attested in Li Wenwei's Yuan-dynasty zaju 《张子房圮桥进履》. A recurring tactic in 《三国演义》 (Romance of the Three Kingdoms), especially attributed to Zhuge Liang.
memory
Literally 'take (将) the plan (计) and follow through with (就) the plan (计)' — you adopt the enemy's scheme as your own and weaponize it back.