. . "a board having 64 squares of two alternating colors"@en-us . "a board having 64 squares of two alternating colors"@en-us . "0.0"^^ . "0.0"^^ . "0"^^ . . . "0.0"^^ . . . . "1.0"^^ . "checkerboard"^^ . . . . . "03011521-n"^^ . "102903451"@en-us . . . "0.0"^^ . . . . . . "102427366"@en-us . "checkerboard"@en-us . . . . "0"^^ . "checker board"@en-us . "0.0"^^ . . "103011521"^^ . . . . . "0.0"^^ . . "0.0"^^ . .