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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♞WHAT IS INCLUDED♞ - 1 Chess Board & 32 chess figures; 2 Kings, 2 Queens, 4 Knights, 4 Bishops, 4 Rooks, 16 Pawns. Comes along with a Free Storage box

Radicaln Marble Chess Set with Storage Box 15 Inches Black and White Handmade Board Games for Adults - Board Games 1 Chess Board Games Board & 32

This is an individual Dark Rook from our Plastic Chess Set with a 25 King., You can purchase this giant chess piece as a replacement piece for an

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Solved In how many different ways can you place eight

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