In how many different ways can coins be arranged on an checkerboard so that no two coins lie in the same row or column? So it would be ?
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Originally Posted by Sampras In how many different ways can coins be arranged on an checkerboard so that no two coins lie in the same row or column? So it would be ? This would be for a board. But is the reasoning correct?
8 Lonely Rooks - Chess.com
To summarize, there are 8 possible positions in the first row, 7 in the second, 6 in the third ... so 8!
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