SOLUTION: The interiors of all the unit squares of a 10 by 10 board are to be painted. Any two squares that have a side in common will be painted with a different color of paint. What is the

SOLUTION: The interiors of all the unit squares of a 10 by 10 board are to be painted. Any two squares that have a side in common will be painted with a different color of paint. What is the

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Question 1125049: The interiors of all the unit squares of a 10 by 10 board are to be painted. Any two squares that have a side in common will be painted with a different color of paint. What is the least number of colors that will be needed?
Answer by ikleyn(52772) (Show Source): You can put this solution on YOUR website!
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2.

Recall a chess board.

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