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.
+26367 How many rectangles are there in a chessboard ?
see: http://datagenetics.com/blog/february12019/index.html
