Saki doesn't understand why she was taken to play mahjong but that's where Saki and Nodoka met. Nodoka wins but questions Saki's playing style so she asks for another game.
You played right into her hand.
صرتِ ألعوبة بين يديها
Jugaste justo en su mano.
Tu vas 
la faire gagner !
Ci sei cascata come una pera.
Você jogou direto na mão dela.