8 sentences

1. 棋错一着，满盘皆输。

   qí cuò yī zhāo, mǎn​pán jiē shū.

   One wrong move and the whole game is lost.

   Source: Dong Chinese Dictionary

2. 两人在棋枰上对弈。

   liǎng rén zài qí píng shàng duì​yì.

   The two of them are playing a game on the chessboard.

   Source: Dong Chinese Dictionary

3. 这局棋还没下完。

   zhè jú qí hái méi xià wán.

   This game of chess isn't over yet.

   Source: Dong Chinese Dictionary

4. 他精通棋道。

   tā jīng​tōng qí dào.

   He is well-versed in the art of chess.

   Source: Dong Chinese Dictionary

5. 这步棋走得真妙，直接军了对方的老将。

   zhè bù qí zǒu de zhēn miào, zhí​jiē jūn le duì​fāng de lǎo​jiàng.

   That was a brilliant move; it put the opponent's king directly in check.

   Source: Dong Chinese Dictionary

6. 下棋是一项非常受大众欢迎的益智活动。

   xià qí shì yī xiàng fēi​cháng shòu dà​zhòng huān​yíng de yì​zhì huó​dòng.

   Playing chess is a very popular intellectual activity among the public.

   Source: Dong Chinese Dictionary

7. 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

8. 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