智力游戏

例句：

1. 1. He enjoys playing chess as a way to exercise his brain.
   他喜欢下棋来锻炼大脑。
2. 2. The game is designed to improve children's cognitive skills.
   这个游戏旨在提高儿童的认知能力。
3. 3. She decided to play the piano for an hour, challenging her mental agility.
   她决定弹一个小时的钢琴，挑战她的心智敏捷度。