17 rooks on a Chessboard

17 rooks are placed on an 8 times 8 chessboard. Prove that there are at least 3 rooks that do not threaten each other.

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How many rooks can be placed on a chessboard so that no two rooks

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combinatorics - How many different ways can we place 4 identical

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1989 Golden CHESS GAME by Western Publishing Company

New move - Rook Shove. Instead of taking pieces, rooks can shove

discrete mathematics - n-rooks n-colors problem - Mathematics

A chessboard of order six with six black rooks placed in such a

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