Assuming you mean so they can't 'take' each other - see the following diagram. The queens are represented by 'O' and blank squares by 'X'...
O X X X X X
X X X O X X
X O X X X X
X X X X X O
X X O X X X
X X X X O X
There are no invisible squares on a chess board.
A chess board has 8x8 squares, 64 in total.
32 white squares are on a chess board.
A chess board has 64 squares.
A standard chess board has 64 squares with pieces on 16 of them.
A chess board has 64 squares (8 x 8)
64 squares are on a chess board.
There are 64 individual squares on a standard chess board. There are eight ranks and eight files. All the squares on a chess board are capable of being used in play.A chess board has exactly 64 squares. (An 8 by 8 array)
A chess board that has an 8 X 8 grid will have 64 squares .
The squares on a chess board are not usually numbered, however the board is 8 squares wide and 8 squares long, giving 64 squares in total.
64
64