We know that you can place up to 8 queens on a chessboard with no other pieces in such a fashion that no queen can be taken.
We also know that you can place 32 knights on the board in such a fashion that none can be taken.
Do you know how many bishops you can place on a standard 8x8 chessboard so that no piece can be taken?
What is their placement?
For e.g - d1, a2 etc...