play into someone's hands

US /pleɪ ˈɪntu ˈsʌmwʌnz hændz/
UK /pleɪ ˈɪntu ˈsʌmwʌnz hændz/
"play into someone's hands" picture
1.

jemandem in die Hände spielen

to do exactly what your opponent wants you to do, so that they gain an advantage over you

:
By arguing with him, you're just playing into his hands.
Indem du mit ihm streitest, spielst du ihm nur in die Hände.
The opposition's mistakes played right into the government's hands.
Die Fehler der Opposition spielten der Regierung direkt in die Hände.