2 sentences for 棋 (qí — piece)

1. 这步棋走马可以攻击对方的炮。

   zhè bù qí zǒu​mǎ kě​yǐ gōng​jī duì​fāng de pào.

   Moving the knight in this step can attack the opponent's cannon.

   Source: Dong Chinese Dictionary

2. 他拿起一颗棋，思考了很久才落下。

   tā ná​qǐ yī kē qí, sī​kǎo le hěn jiǔ cái luò​xià.

   He picked up a piece and thought for a long time before making a move.

   Source: Dong Chinese Dictionary