In how many ways you can put three rooks on a chessboard so that no two of them are in same row ,column or diagonal.
Chess Board - Combinatorics
1
$\begingroup$
combinatorics
puzzle
1 Answers
2
This is OEIS A047659 "Number of ways to place 3 nonattacking queens on an n X n board."
-
0:) Thanks, Gerry, for pointing it out. – 2012-04-15