chessn.国际象棋
chessboard matrix[计] 棋盘矩阵
chessboard canvas刺绣格子白帆布
chessboard design棋盘式设计
chess game theory博弈论
chessboard problem棋盘问题
chessboard ceiling平棊
chess-board type棋盘式
chess competitions棋类比赛
chessman stonemill棋子石磨
chessboard pattern棋盘格图形