Go board
The wooden board used for playing the game of Go, typically with a 19×19 grid.
祖父の家には古い碁盤がある。
There is an old Go board at my grandfather's house.
碁盤の上に石を置く。
Place a stone on the Go board.
The two of them sat quietly facing each other across the Go board.
He sat facing the Go board, deep in thought for a long time.