MATH STINGER #15 
by Dr. Joel C. Fowler 
Assistant Professor of Mathematics 

For new problems for this issue we look at arrangements of chess pieces on a standard 
8x8 chessboard such that no one piece attacks any other. These are sometimes called 
"peaceful arrangements". Two problems are as follows. What is the largest number of 
peaceful rooks that one can place on a chessboard? In how many ways can this largest 
number of rooks be placed peacefully on the board? Once you have solved this you may 
wish to investigate the same two questions for bishops.

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