Grandpa plays Chinese chess in the park every day.
Tips
culture
Chinese chess (象棋) is one of the most popular board games in China. Old men playing xiangqi in parks is an iconic scene of Chinese daily life. The game has a 'river' dividing the board, representing the Chu-Han border.
grammar
The verb for playing chess in Chinese is 下 (to go down), not 玩 (to play): 下象棋, not 玩象棋.