combinatorics - How many different ways can we place 4 identical rooks on the following chess board - Mathematics Stack Exchange
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How many different ways can we place 4 identical rooks on the following chess board so that no two of them attack each other?
I know when the board is $n \times n$ and we have $n$ towers then the
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SOLVED: How many possibilities are there for 8 non-attacking rooks on an -by-8 chess board? How about having 8 different color rooks? How about having red (R) rook 3 blue (B) rooks
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