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How many rectangles are there in a chessboard ?

 Nov 22, 2019
 #1
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64 + 49 + 36 + 25 + 16 + 9 + 4 + 1 = 204. 64 in total but it depends on the actual chess board, the sequence on the left shows the different possible rectangles a chess board can have. 

 Nov 22, 2019
 #2
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+2

How many rectangles are there in a chessboard ?

 

see: http://datagenetics.com/blog/february12019/index.html

 

laugh

 Nov 22, 2019

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